     1                                  ; ****************************************************************************
     2                                  ; tmodply2.s (for TRDOS 386)
     3                                  ; ----------------------------------------------------------------------------
     4                                  ; TMODPLY2.PRG ! AC'97 (ICH) MOD PLAYER & VGA DEMO program by Erdogan TAN
     5                                  ;
     6                                  ; 27/10/2017
     7                                  ;
     8                                  ; [ Last Modification: 27/11/2023 ]  !!! STEREO MOD PLAYING !!!
     9                                  ;
    10                                  ; Derived from 'tmodplay.s' (TMODPLAY.PRG, SB16) source code by Erdogan Tan
    11                                  ; (27/10/2017). ((Stereo mod playing with TRDOS 386 audio system calls...))
    12                                  ;
    13                                  ; <tmodplay.s> note:
    14                                  ;
    15                                  ; For 640x480x16 display, 'TNYPL211' source code ('EX1A.ASM' and 'EX1B.ASM'
    16                                  ; by Carlos Hasan, 1994) is modified in order to use previous ('modplay7.s')
    17                                  ; scope method as stereo. (Track/channel scope method -in TNYPL211 files- 
    18                                  ; is/was not applied because TRDOS 386 adaption of the tiny mod player uses 
    19                                  ; dma buffer for immediate -synchronized- displaying of sound waves.
    20                                  ; So, stereo wave display -two waves, two scopes- is normally applicable.)
    21                                  ;
    22                                  ; Derived from source code of 'PLAY.EXE' (TINYPLAY) by Carlos Hasan (1993)
    23                                  ;          PLAY.EXE: PLAY.ASM, MODLOAD.ASM, MODPLAY.ASM, SB.ASM
    24                                  ;
    25                                  ; Stereophonic mod playing code prototype: 
    26                                  ;		'modplay6.s' (AC97) by Erdogan Tan (20/10/2017)
    27                                  ;
    28                                  ; Modified by using the source code of 'tinyply3.s' ('TINYPLY3.PRG') 
    29                                  ; by Erdogan Tan (07/10/2017)
    30                                  ;
    31                                  ; Modified from 'playwav3.s' (13/06/2017)
    32                                  ;
    33                                  ; Modified from 'PLAYMOD.PRG' ('playmod.s') source code by Erdogan Tan
    34                                  ;			                     (23/06/2017)
    35                                  ;
    36                                  ; Derived from source code of 'TINYPLAY.COM' ('TINYPLAY.ASM') by Erdogan Tan
    37                                  ;				      (04/03/2017) 
    38                                  ; Assembler: NASM 2.11
    39                                  ; ----------------------------------------------------------------------------
    40                                  ;	   nasm  tmodplay.s -l tmodplay.txt -o TMODPLAY.PRG	
    41                                  ; ****************************************************************************
    42                                  ; PLAYMOD.ASM by Erdogan Tan (for MSDOS) (15/02/2017)
    43                                  ; TMODPLAY.ASM by Erdogan Tan (for MSDOS) (01/10/2017)
    44                                  
    45                                  ; 14/07/2020
    46                                  ; 31/12/2017
    47                                  ; TRDOS 386 (v2.0) system calls
    48                                  _ver 	equ 0
    49                                  _exit 	equ 1
    50                                  _fork 	equ 2
    51                                  _read 	equ 3
    52                                  _write	equ 4
    53                                  _open	equ 5
    54                                  _close 	equ 6
    55                                  _wait 	equ 7
    56                                  _create	equ 8
    57                                  _rename	equ 9
    58                                  _delete	equ 10
    59                                  _exec	equ 11
    60                                  _chdir	equ 12
    61                                  _time 	equ 13
    62                                  _mkdir 	equ 14
    63                                  _chmod	equ 15
    64                                  _rmdir	equ 16
    65                                  _break	equ 17
    66                                  _drive	equ 18
    67                                  _seek	equ 19
    68                                  _tell 	equ 20
    69                                  _memory	equ 21
    70                                  _prompt	equ 22
    71                                  _path	equ 23
    72                                  _env	equ 24
    73                                  _stime	equ 25
    74                                  _quit	equ 26
    75                                  _intr	equ 27
    76                                  _dir	equ 28
    77                                  _emt 	equ 29
    78                                  _ldrvt 	equ 30
    79                                  _video 	equ 31
    80                                  _audio	equ 32
    81                                  _timer	equ 33
    82                                  _sleep	equ 34
    83                                  _msg    equ 35
    84                                  _geterr	equ 36
    85                                  _fpstat	equ 37
    86                                  _pri	equ 38
    87                                  _rele	equ 39
    88                                  _fff	equ 40
    89                                  _fnf	equ 41
    90                                  _alloc	equ 42
    91                                  _dalloc equ 43
    92                                  _calbac equ 44
    93                                  _dma	equ 45		
    94                                  
    95                                  %macro sys 1-4
    96                                      ; 29/04/2016 - TRDOS 386 (TRDOS v2.0)	
    97                                      ; 03/09/2015	
    98                                      ; 13/04/2015
    99                                      ; Retro UNIX 386 v1 system call.	
   100                                      %if %0 >= 2   
   101                                          mov ebx, %2
   102                                          %if %0 >= 3    
   103                                              mov ecx, %3
   104                                              %if %0 = 4
   105                                                 mov edx, %4   
   106                                              %endif
   107                                          %endif
   108                                      %endif
   109                                      mov eax, %1
   110                                      ;int 30h
   111                                      int 40h ; TRDOS 386 (TRDOS v2.0)	   
   112                                  %endmacro
   113                                  
   114                                  ; TRDOS 386 (and Retro UNIX 386 v1) system call format:
   115                                  ; sys systemcall (eax) <arg1 (ebx)>, <arg2 (ecx)>, <arg3 (edx)>
   116                                  
   117                                  ; 19/06/2017
   118                                  ;BUFFERSIZE equ 32768
   119                                  ; 27/11/2023
   120                                  BUFFERSIZE equ 65536
   121                                  
   122                                  ; ----------------------------------------------------------------------------
   123                                  ; Tiny MOD Player v0.1b by Carlos Hasan.
   124                                  ;	July 14th, 1993.
   125                                  
   126                                  ;=============================================================================
   127                                  ;  
   128                                  ;=============================================================================
   129                                  
   130                                  [BITS 32]
   131                                  [org 0]
   132                                  
   133                                  Start:
   134                                  	; 27/11/2023
   135                                  	; clear bss
   136 00000000 B9[03000A00]            	mov	ecx, EOF+3
   137 00000005 BF[A1520000]            	mov	edi, bss_start
   138 0000000A 29F9                    	sub	ecx, edi
   139 0000000C C1E902                  	shr	ecx, 2
   140 0000000F 31C0                    	xor	eax, eax
   141 00000011 F3AB                    	rep	stosd
   142                                  
   143                                  	; Detect (& Enable) AC'97 (ICH) Audio Device
   144 00000013 E831020000              	call    DetectICH
   145 00000018 731B                    	jnc     short GetFileName
   146                                  
   147                                  _dev_not_ready:
   148                                  ; couldn't find the audio device!
   149                                  	sys	_msg, noDevMsg, 255, 0Fh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000001A BB[56020000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 0000001F B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 00000024 BA0F000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000029 B823000000          <1>  mov eax, %1
   110                              <1> 
   111 0000002E CD40                <1>  int 40h
   150 00000030 E9F3010000                      jmp     Exit
   151                                  
   152                                  GetFileName:
   153                                  	;cmp	ah, 1 ; SB16 Sound card
   154                                  	;jne	_dev_not_ready	
   155                                  	  
   156 00000035 89E6                    	mov	esi, esp
   157 00000037 AD                      	lodsd
   158 00000038 83F802                  	cmp	eax, 2 ; two arguments 
   159                                  		; (program file name & mod file name)
   160 0000003B 0F82F0010000            	jb	pmsg_usage ; nothing to do
   161                                  
   162 00000041 AD                      	lodsd ; program file name address 
   163 00000042 AD                      	lodsd ; mod file name address (file to be read)
   164 00000043 89C6                    	mov	esi, eax
   165 00000045 BF[10E00000]            	mov	edi, mod_file_name
   166                                  ScanName:       
   167 0000004A AC                      	lodsb
   168 0000004B 84C0                    	test	al, al
   169 0000004D 0F84DE010000            	je	pmsg_usage
   170 00000053 3C20                    	cmp	al, 20h
   171 00000055 74F3                    	je	short ScanName	; scan start of name.
   172 00000057 AA                      	stosb
   173 00000058 B4FF                    	mov	ah, 0FFh
   174                                  a_0:	
   175 0000005A FEC4                    	inc	ah
   176                                  a_1:
   177 0000005C AC                      	lodsb
   178 0000005D AA                      	stosb
   179 0000005E 3C2E                    	cmp	al, '.'
   180 00000060 74F8                    	je	short a_0	
   181 00000062 20C0                    	and	al, al
   182 00000064 75F6                    	jnz	short a_1
   183                                  
   184 00000066 08E4                    	or	ah, ah		 ; if period NOT found,
   185 00000068 750B                    	jnz	short PrintPMesg ; then add a .MOD extension.
   186                                  SetExt:
   187 0000006A 4F                      	dec	edi
   188 0000006B C7072E4D4F44            	mov	dword [edi], '.MOD'
   189 00000071 C6470400                	mov	byte [edi+4], 0
   190                                  PrintPMesg:      
   191                                  	; Prints the Credits Text.
   192                                  	sys	_msg, Credits, 255, 0Fh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000075 BB[80510000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 0000007A B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 0000007F BA0F000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000084 B823000000          <1>  mov eax, %1
   110                              <1> 
   111 00000089 CD40                <1>  int 40h
   193                                  _1:
   194                                  	; 19/06/2017
   195                                  	; Allocate Audio Buffer (for user)
   196                                  	sys	_audio, 0200h, BUFFERSIZE, Audio_Buffer
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000008B BB00020000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000090 B900000100          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 00000095 BA[00F00000]        <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000009A B820000000          <1>  mov eax, %1
   110                              <1> 
   111 0000009F CD40                <1>  int 40h
   197 000000A1 0F8206010000            	jc	error_exit
   198                                  _2:
   199                                  	;; Initialize Audio Device (bl = 1 -> Interrupt method)
   200                                  	;sys	_audio, 0301h, 0, sb16_int_handler 
   201                                  	;jc	error_exit
   202                                  	
   203                                  	; 20/10/2017
   204                                  	; Initialize Audio Device (bl = 0 -> SRB method)
   205                                  	sys	_audio, 0300h, 1, srb 
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000000A7 BB00030000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 000000AC B901000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 000000B1 BA[C5520000]        <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000000B6 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 000000BB CD40                <1>  int 40h
   206 000000BD 0F82EA000000            	jc	error_exit
   207                                  
   208                                  LoadMod:  
   209 000000C3 BF[10E00000]            	mov	edi, mod_file_name
   210 000000C8 E86B020000              	call    LoadModule		; Load the MODule...
   211                                  	; 08/10/2017
   212 000000CD 731B                    	jnc	short _3		; any error loading?
   213                                  
   214                                  	; yes, print error and Exit.
   215                                  
   216                                  	sys	_msg, ErrorMesg, 255, 0Fh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000000CF BB[B4510000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 000000D4 B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 000000D9 BA0F000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000000DE B823000000          <1>  mov eax, %1
   110                              <1> 
   111 000000E3 CD40                <1>  int 40h
   217 000000E5 E93E010000              	jmp     Exit
   218                                  _3:
   219                                  	; 10/06/2017
   220                                  	sys	_audio, 0E00h ; get audio controller info
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000000EA BB000E0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000000EF B820000000          <1>  mov eax, %1
   110                              <1> 
   111 000000F4 CD40                <1>  int 40h
   221 000000F6 0F82B1000000            	jc	error_exit
   222                                  
   223                                  	;cmp	ah, 2 ; AC'97 (Intel ICH) Audio Controller
   224                                  	;jne	_dev_not_ready	
   225                                  
   226                                  	; EAX = IRQ Number in AL
   227                                  	;	Audio Device Number in AH 
   228                                  	; EBX = DEV/VENDOR ID
   229                                  	;       (DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV)
   230                                  	; ECX = BUS/DEV/FN 
   231                                  	;       (00000000BBBBBBBBDDDDDFFF00000000)
   232                                  	; EDX = Base IO Addr (DX) for SB16 & VT8233
   233                                  	; EDX = NABMBAR/NAMBAR (for AC97)
   234                                  	;      (Low word, DX = NAMBAR address)
   235                                  
   236 000000FC A2[C4520000]            	mov	[ac97_int_ln_reg], al
   237 00000101 891D[B4520000]          	mov	[dev_vendor], ebx
   238 00000107 890D[B8520000]          	mov	[bus_dev_fn], ecx
   239 0000010D 668915[C0520000]        	mov	[ac97_NamBar], dx
   240                                  	;mov	[ac97_NamBar], dx
   241                                  	;shr	dx, 16
   242                                  	;mov	[ac97_NabmBar], dx
   243 00000114 8915[C0520000]          	mov	[ac97_NamBar], edx	
   244                                    
   245 0000011A E8C80A0000              	call	write_audio_dev_info 
   246                                  
   247                                  PlayNow: 
   248 0000011F E8E3090000              	call    StartPlaying
   249                                  
   250                                  	; load 32768 bytes into audio buffer
   251 00000124 BF[00F00000]            	mov	edi, Audio_Buffer
   252                                  	; 19/10/2017
   253                                  	;mov	ebx, BUFFERSIZE
   254 00000129 BB00400000              	mov	ebx, BUFFERSIZE/4  ; 16 bits, stereo sound buffer
   255 0000012E E883080000              	call	GetSamples
   256 00000133 7278                    	jc	error_exit
   257                                  
   258                                  	; 27/11/2023
   259                                  	; bh = 16 : update (current, first) dma half buffer
   260                                  	; bl = 0  : then switch to the next (second) half buffer
   261                                  	sys	_audio, 1000h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000135 BB00100000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000013A B820000000          <1>  mov eax, %1
   110                              <1> 
   111 0000013F CD40                <1>  int 40h
   262                                  
   263                                  	; 27/11/2023
   264                                  	; load 32768 bytes into audio buffer
   265 00000141 BF[00F00000]            	mov	edi, Audio_Buffer
   266                                  	; 19/10/2017
   267                                  	;mov	ebx, BUFFERSIZE
   268 00000146 BB00400000              	mov	ebx, BUFFERSIZE/4  ; 16 bits, stereo sound buffer
   269 0000014B E866080000              	call	GetSamples
   270 00000150 725B                    	jc	error_exit
   271                                  
   272                                  ;	;mov	ecx, 128	; Make a lookup table
   273                                  ;	mov	cl, 128
   274                                  ;	xor     ebx, ebx	; for fastest pixel
   275                                  ;	mov     edx, 320*(100-64)	; addressing.
   276                                  ;MakeOfs:        
   277                                  ;	mov     [RowOfs+ebx], dx
   278                                  ;	mov     [RowOfs+ebx+2], dx
   279                                  ;	add     dx, 320
   280                                  ;	add     ebx, 4
   281                                  ;	loop    MakeOfs
   282                                  
   283                                  	; 27/10/2017
   284 00000152 66B90001                	mov	cx, 256
   285 00000156 31DB                    	xor	ebx, ebx
   286 00000158 BF[10D60000]            	mov	edi, RowOfs
   287                                  MakeOfs:
   288                                  	; 29/10/2017
   289                                  	;mov	ax, 128
   290                                  	;mul	bx
   291                                  	;mov	al, ah
   292                                  	;mov	ah, 80
   293                                  	;mul	ah
   294 0000015D 89D8                    	mov	eax, ebx
   295 0000015F 66C1E007                	shl	ax, 7 ; * 128
   296 00000163 B050                    	mov	al, 80
   297 00000165 F6E4                    	mul	ah
   298 00000167 66AB                    	stosw
   299 00000169 43                      	inc	ebx
   300 0000016A E2F1                    	loop	MakeOfs
   301                                  	
   302                                  	; 23/06/2017
   303                                  	; Map DMA buffer to user's memory space
   304                                  	;sys	_audio, 0D00h, 65536, DMA_Buffer
   305                                  	;;jc	error_exit
   306                                  	; 27/11/2023
   307                                  	sys	_audio, 0D00h, 131072, DMA_Buffer
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000016C BB000D0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000171 B900000200          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 00000176 BA[00000200]        <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000017B B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000180 CD40                <1>  int 40h
   308                                  	
   309                                  	; 24/06/2017
   310                                  	; Set Master Volume Level (BL=0 or 80h)
   311                                  	; 	 	for next playing (BL>=80h)
   312                                  	sys	_audio, 0B80h, 1D1Dh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000182 BB800B0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000187 B91D1D0000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000018C B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000191 CD40                <1>  int 40h
   313                                  
   314                                  	; 20/10/2017
   315 00000193 C605[61E00000]1D        	mov	byte [volume_level], 1Dh
   316                                  
   317                                  	;mov	word [MixSpeed], 22050	; Mixing at 22.050 kHz
   318                                  	
   319                                  	; 27/11/2023
   320                                  	; Start	to play
   321                                  	;mov	al, [bps]
   322                                  	;shr	al, 4 ; 8 -> 0, 16 -> 1
   323                                  	;shl	al, 1 ; 16 -> 2, 8 -> 0
   324                                  	;mov	bl, [stmo]
   325                                  	;dec	bl
   326                                  	;or	bl, al
   327                                  	;mov	cx, [MixSpeed] ; [Sample_Rate] ; Hz 
   328                                  	;mov	bh, 4 ; start to play	
   329                                  	;sys	_audio
   330                                      
   331                                  	;; SETUP SIGNAL RESPONSE BYTE
   332                                  	;; 06/03/2017
   333                                  	;mov	bl, [ac97_int_ln_reg] ; IRQ number
   334                                  	;mov	bh, 1 ; Link IRQ to user for Signal Response Byte
   335                                  	;mov	edx, srb  ; Signal Response/Return Byte address  
   336                                  	;mov	ecx, 0FFh ; Signal Response/Return Byte value  
   337                                  	;sys	_calbac
   338                                  	;jc	short error_exit
   339                                  
   340                                  	; DIRECT VGA MEMORY ACCESS
   341                                  	; bl = 0, bh = 5
   342                                  	; Direct access/map to VGA memory (0A0000h)
   343                                  
   344                                  	sys	_video, 0500h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000019A BB00050000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000019F B81F000000          <1>  mov eax, %1
   110                              <1> 
   111 000001A4 CD40                <1>  int 40h
   345 000001A6 3D00000A00              	cmp	eax, 0A0000h
   346 000001AB 7418                    	je	short _a3
   347                                  error_exit:
   348                                  	sys	_msg, trdos386_err_msg, 255, 0Eh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000001AD BB[D1510000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 000001B2 B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 000001B7 BA0E000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000001BC B823000000          <1>  mov eax, %1
   110                              <1> 
   111 000001C1 CD40                <1>  int 40h
   349 000001C3 EB63                    	jmp	short Exit
   350                                  
   351                                  ; Note: Normally IRQ 0 calls the ModPlay Polling at 18.2Hz thru
   352                                  ;       the software interrupt 1Ch. If the IRQ 0 is disabled, then
   353                                  ;       the INT 1Ch MUST BE CALLED at least MixSpeed/1024 times per
   354                                  ;       second, or the module will sound "looped".
   355                                  ;       Because we need better sync with the ModPlayer to draw the scope,
   356                                  ;       the polling is called from my routine, and then the irq 0 must be
   357                                  ;       disabled. The [DmaBuffer] points to the current buffer of 8-bit
   358                                  ;       samples played by the Sound Blaster. Note that some samples are
   359                                  ;       discarded in the next code, just for fun!
   360                                  
   361                                  _a3:
   362                                  	;mov     ax, 0013h	; Set Mode 320x200x256
   363                                  	;int     31h
   364                                  
   365                                  	; 21/10/2017
   366                                  	;mov	ax, 0012h	; Set Mode 640x480x16
   367                                  	;int	31h
   368                                  
   369                                  	; 22/10/2017
   370 000001C5 E8E30B0000              	call	setgraphmode	; Set video mode to 640*480x16
   371                                  
   372                                  	; 22/10/2017
   373                                  	;call	loadlbm
   374                                  	;jc	short loadlbm_err
   375                                  
   376 000001CA BE[CE0F0000]            	mov	esi, LOGO_ADDRESS
   377 000001CF E8C40C0000              	call	putlbm
   378                                  	;jnc	short loadlbm_ok
   379 000001D4 731F                    	jnc	short _a4 ; 
   380                                  
   381                                  	;mov	byte [error_color], 0Eh ; Yellow
   382                                  
   383                                  loadlbm_err:
   384                                  	; 21/10/2017
   385                                  	;mov	ax, 0003h	; Set Text Mode 80x25x16
   386                                  	;int	31h
   387                                  	; 22/10/2017
   388 000001D6 E8EF0B0000              	call	settextmode
   389                                  
   390                                  	sys	_msg, LOGO_ERROR_MSG, 255, [error_color]
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000001DB BB[A20F0000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 000001E0 B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 000001E5 8B15[F4010000]      <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000001EB B823000000          <1>  mov eax, %1
   110                              <1> 
   111 000001F0 CD40                <1>  int 40h
   391 000001F2 EB34                    	jmp	short Exit
   392                                  
   393                                  	; 21/10/2017
   394                                  error_color:
   395 000001F4 0C                      	db	0Ch  ; Light Red
   396                                  	
   397                                  loadlbm_ok: 
   398                                  	; 21/10/2017
   399                                  _a4:
   400                                  	; 27/11/2023
   401                                  	; Start	to play
   402 000001F5 A0[F7510000]            	mov	al, [bps]
   403 000001FA C0E804                  	shr	al, 4 ; 8 -> 0, 16 -> 1
   404 000001FD D0E0                    	shl	al, 1 ; 16 -> 2, 8 -> 0
   405 000001FF 8A1D[F6510000]          	mov	bl, [stmo]
   406 00000205 FECB                    	dec	bl
   407 00000207 08C3                    	or	bl, al
   408 00000209 668B0D[F8510000]        	mov	cx, [MixSpeed] ; [Sample_Rate] ; Hz 
   409 00000210 B704                    	mov	bh, 4 ; start to play	
   410                                  	sys	_audio
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101                              <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000212 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000217 CD40                <1>  int 40h
   411                                  
   412                                  	; 24/06/2017
   413 00000219 E863000000              	call	PlayMod ; 13/02/2017 (ModPlay)
   414                                  
   415                                  _s_exit:
   416 0000021E E893090000              	call	StopPlaying	; STOP!
   417                                  	
   418                                  	; 22/10/2017
   419                                  	;mov	ax, 0003h	; Set Text Mode 80x25x16
   420                                  	;int	31h
   421 00000223 E8A20B0000              	call	settextmode
   422                                  Exit:           
   423                                  	;call	FreeModule	; Free MODule core.
   424                                  	
   425                                  	sys 	_exit	; Bye !
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101                              <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000228 B801000000          <1>  mov eax, %1
   110                              <1> 
   111 0000022D CD40                <1>  int 40h
   426                                  here:
   427 0000022F EBFE                    	jmp	short here
   428                                  
   429                                  pmsg_usage:
   430                                  	sys	_msg, msg_usage, 255, 0Fh
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000231 BB[09510000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000236 B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 0000023B BA0F000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000240 B823000000          <1>  mov eax, %1
   110                              <1> 
   111 00000245 CD40                <1>  int 40h
   431 00000247 EBDF                    	jmp	short Exit
   432                                  
   433                                  DetectICH:
   434                                  	; 24/06/2017
   435                                  	; Detect (BH=1) AC97 (BL=2) Audio Controller
   436                                          sys	_audio, 0102h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000249 BB02010000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000024E B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000253 CD40                <1>  int 40h
   437 00000255 C3                      	retn
   438                                  
   439                                  noDevMsg:
   440 00000256 4572726F723A20556E-     	db "Error: Unable to find AC97 audio device!",13,10,0
   440 0000025F 61626C6520746F2066-
   440 00000268 696E64204143393720-
   440 00000271 617564696F20646576-
   440 0000027A 696365210D0A00     
   441                                  
   442                                  ;ac97_int_handler:
   443                                  ;	; 19/06/2017
   444                                  ;	mov	byte [srb], 1 ; interrupt (or signal response byte)
   445                                  ;
   446                                  ;	sys	_rele ; return from callback service 
   447                                  ;	; we must not come here !
   448                                  ;	sys	_exit
   449                                  
   450                                  ;=============================================================================
   451                                  ;      
   452                                  ;=============================================================================
   453                                  
   454                                  PlayMod:
   455                                  	; 27/11/2023
   456                                  	; 27/10/2017
   457                                  	; 19/10/2017
   458                                  	; 23/06/2017   
   459                                  	; 21/06/2017
   460                                  	; 19/06/2017
   461                                  
   462                                  	; 05/03/2017 (TRDOS 386)
   463                                  	; 14/02/2017
   464                                  	; 13/02/2017
   465                                  	; 08/12/2016
   466                                  	; 28/11/2016
   467                                  
   468                                  	; 27/11/2023
   469                                       	;jmp	short modp_gs
   470                                  p_loop:
   471 00000281 803D[C5520000]00        	cmp	byte [srb], 0
   472 00000288 761D                    	jna	short q_loop
   473 0000028A C605[C5520000]00        	mov	byte [srb], 0
   474                                  modp_gs:
   475 00000291 BF[00F00000]            	mov	edi, Audio_Buffer
   476                                  	; 19/10/2017
   477                                  	;mov	ebx, BUFFERSIZE ; 32768 bytes ; 14/03/2017
   478 00000296 BB00400000              	mov	ebx, BUFFERSIZE/4 ; 16 bits, stereo sound buffer
   479 0000029B E816070000              	call	GetSamples
   480                                  	;jc	error_exit
   481                                  	; 27/11/2023
   482 000002A0 73DF                    	jnc	short p_loop
   483 000002A2 E906FFFFFF              	jmp	error_exit
   484                                  q_loop:
   485 000002A7 B401                    	mov     ah, 1		; any key pressed?
   486 000002A9 CD32                    	int     32h		; no, Loop.
   487 000002AB 745C                    	jz	short r_loop
   488                                  
   489 000002AD B400                    	mov     ah, 0		; flush key buffer...
   490 000002AF CD32                    	int     32h
   491                                  
   492                                  	; 19/10/2017 (modplay6.s)
   493 000002B1 3C20                    	cmp	al, 20h
   494 000002B3 740E                    	je	short change_pan
   495                                  	; 09/10/2017 (playmod5.s)
   496 000002B5 3C2B                    	cmp	al, '+' ; increase sound volume
   497 000002B7 741D                    	je	short inc_volume_level
   498 000002B9 3C2D                    	cmp	al, '-'
   499 000002BB 743C                    	je	short dec_volume_level
   500                                  
   501                                  	; 19/10/2017 (modplay6.s)
   502 000002BD 24DF                    	and	al, 0DFh
   503 000002BF 3C50                    	cmp	al, 'P'
   504 000002C1 7545                    	jne	short q_return
   505                                  
   506                                  change_pan:
   507                                  	; 19/10/2017 (modplay6.s)
   508 000002C3 8A0D[60E00000]          	mov	cl, [pan_shift]
   509 000002C9 FEC1                    	inc	cl
   510 000002CB 80E103                  	and	cl, 3
   511 000002CE 880D[60E00000]          	mov	[pan_shift], cl
   512 000002D4 EB33                    	jmp	short r_loop
   513                                  
   514                                  	; 09/10/2017 (playmod5.s)
   515                                  	; 24/06/2017 (wavplay2.s)
   516                                  inc_volume_level:
   517 000002D6 8A0D[61E00000]          	mov	cl, [volume_level]
   518 000002DC 80F91F                  	cmp	cl, 1Fh ; 31
   519 000002DF 7328                    	jnb	short r_loop
   520 000002E1 FEC1                    	inc	cl
   521                                  change_volume_level:
   522 000002E3 880D[61E00000]          	mov	[volume_level], cl
   523 000002E9 88CD                    	mov	ch, cl
   524                                  	; Set Master Volume Level
   525                                  	sys	_audio, 0B00h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 000002EB BB000B0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000002F0 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 000002F5 CD40                <1>  int 40h
   526 000002F7 EB10                    	jmp	short r_loop
   527                                  dec_volume_level:
   528 000002F9 8A0D[61E00000]          	mov	cl, [volume_level]
   529 000002FF 80F901                  	cmp	cl, 1 ; 1
   530 00000302 7605                    	jna	short r_loop
   531 00000304 FEC9                    	dec	cl
   532 00000306 EBDB                    	jmp	short change_volume_level
   533                                  
   534                                  q_return:
   535 00000308 C3                      	retn
   536                                  r_loop:
   537                                  	; 27/10/2017
   538                                  	; Get Current DMA buffer Pointer 
   539                                  	; 23/06/2017 ('modplay6.s')
   540                                  	; bh = 15, get current pointer (DMA buffer offset)
   541                                  	; bl = 0, for PCM OUT
   542                                  	; ecx = 0
   543                                  	;
   544                                  	sys	_audio, 0F00h, 0
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000309 BB000F0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 0000030E B900000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000313 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000318 CD40                <1>  int 40h
   545                                  
   546                                  	; 28/10/2017
   547 0000031A 24FC                    	and	al, 0FCh  ; dword alignment (stereo, 16 bit)	
   548                                  	; 23/06/2017
   549 0000031C BE[00000200]            	mov     esi, DMA_Buffer
   550 00000321 01C6                    	add     esi, eax	; add offset value
   551                                  	; 24/06/2017
   552                                  	;mov	ecx, DMA_Buffer + (65536 - (256*4))
   553                                  	; 27/11/2023
   554 00000323 B9[00FC0300]            	mov	ecx, DMA_Buffer + (131072 - (256*4))
   555 00000328 39CE                    	cmp	esi, ecx 
   556 0000032A 7602                    	jna	short _4
   557 0000032C 89CE                    	mov	esi, ecx
   558                                  _4:
   559                                  	; 23/10/2017 ('tmodplay.s')
   560 0000032E E89E0A0000              	call	drawscopes
   561                                  
   562 00000333 E949FFFFFF              	jmp	p_loop
   563                                  
   564                                  ;=============================================================================
   565                                  ;               MODLOAD.ASM
   566                                  ;=============================================================================
   567                                  
   568                                  ; Amiga Module Loader v0.1b by Carlos Hasan.
   569                                  ;	July 10th, 1993.
   570                                  
   571                                  ; STRUCTURES
   572                                  
   573                                  struc ModSample
   574 00000000 <res 16h>               .msName:	resb 22
   575 00000016 ????                    .msLength:	resw 1
   576 00000018 ??                      .msFinetune:	resb 1
   577 00000019 ??                      .msVolume:	resb 1
   578 0000001A ????                    .msRepeat:	resw 1
   579 0000001C ????                    .msRepLen:	resw 1
   580                                  .size:		; 30 bytes
   581                                  endstruc
   582                                  
   583                                  struc ModHeader
   584 00000000 <res 14h>               .mhName:	resb 20
   585 00000014 <res 3A2h>              .mhSamples:	resb ModSample.size*31
   586 000003B6 ??                      .mhOrderLen:	resb 1
   587 000003B7 ??                      .mhReStart:	resb 1
   588 000003B8 <res 80h>               .mhOrder:	resb 128
   589 00000438 ????????                .mhSign:	resw 2
   590                                  .size:		; 1084 bytes
   591                                  endstruc
   592                                  
   593                                  struc ModInfoRec
   594 00000000 ??                      .OrderLen:	resb 1
   595 00000001 ??                      .ReStart:	resb 1
   596 00000002 <res 80h>               .Order:		resb 128
   597 00000082 ????????                .Patterns:	resd 1
   598 00000086 <res 3Eh>               .SampOfs:	resw 31
   599 000000C4 <res 3Eh>               .SampSeg:	resw 31
   600 00000102 <res 3Eh>               .SampLen:	resw 31
   601 00000140 <res 3Eh>               .SampRep:	resw 31
   602 0000017E <res 3Eh>               .SampRepLen:	resw 31
   603 000001BC <res 3Eh>               .SampVol:	resw 31
   604                                  .size:		; 506 bytes	
   605                                  endstruc
   606                                  
   607                                  ; CODE
   608                                  
   609                                  ; modplay5.s
   610                                  ; 07/10/2017
   611                                  ; tinyply3.s
   612                                  ; 06/10/2017
   613                                  ; 04/10/2017
   614                                  ; /* MOD FileFormat */
   615                                  
   616                                  ID_MK	equ 2E4B2E4Dh ; "M.K."
   617                                  ID_FLT4 equ 34544C46h ; "FLT4"
   618                                  ID_8CHN equ 4E484338h ; "8CHN"
   619                                  ID_FLT8 equ 34544C46h ; "FLT8"
   620                                  
   621                                  ; CODE
   622                                  
   623                                  LoadModule:
   624                                  	; edi = file name address
   625                                  
   626 00000338 60                      	pushad
   627                                  
   628 00000339 E871010000              	call    ClearModInfo
   629                                  OpenFile:       
   630                                  	; ebx = ASCIIZ file name address
   631                                  	; ecx = open mode (0 = open for read)	
   632                                  	sys	_open, edi, 0 ; open for reading
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000033E 89FB                <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000340 B900000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000345 B805000000          <1>  mov eax, %1
   110                              <1> 
   111 0000034A CD40                <1>  int 40h
   633 0000034C 0F825B010000            	jc	Failed
   634 00000352 A3[C6520000]            	mov     [FileHandle], eax
   635                                  ReadHeader:
   636                                  	; ebx = File handle
   637                                  	; ecx = Buffer address
   638                                  	; edx = Byte count
   639                                  	sys	_read, [FileHandle], Header, ModHeader.size
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000357 8B1D[C6520000]      <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 0000035D B9[CA520000]        <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 00000362 BA3C040000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000367 B803000000          <1>  mov eax, %1
   110                              <1> 
   111 0000036C CD40                <1>  int 40h
   640 0000036E 0F822A010000            	jc      CloseFile
   641                                  CheckMK:  
   642                                  	; 04/10/2017
   643 00000374 A1[02570000]            	mov	eax, [Header+ModHeader.mhSign]
   644                                        
   645 00000379 3D4D2E4B2E              	cmp	eax, ID_MK   ; cmp eax, '.K.M'
   646                                  	;je	short Is4chnMod
   647 0000037E 742B                    	je	short IsModFile
   648                                  CheckFLT4:
   649 00000380 3D464C5434              	cmp	eax, ID_FLT4 ; cmp eax, '4TLF'
   650                                  	;je	short Is4chnMod
   651 00000385 7424                    	je	short IsModFile
   652                                  Check8CHN:
   653 00000387 3D3843484E              	cmp	eax, ID_8CHN ; cmp eax,	'NHC8'
   654 0000038C 740D                    	je	short Is8chnMod
   655                                  CheckFLT8:
   656 0000038E 3D464C5434              	cmp	eax, ID_FLT8 ; cmp eax, '8TLF'
   657                                  	; 06/10/2017
   658 00000393 7406                    	je	short Is8chnMod
   659 00000395 F9                      	stc
   660 00000396 E903010000              	jmp	CloseFile
   661                                  Is8chnMod:
   662 0000039B C605[F2510000]08        	mov	byte [numtracks], 8	; 8-CHANNEL-MOD
   663 000003A2 C605[F1510000]0B        	mov	byte [pattern_shift], 11 ; Pattern Size = 2048 bytes
   664 000003A9 EB00                    	jmp	short IsModFile
   665                                  ;Is4chnMod:
   666                                  ;	mov	byte [numtracks], 4	; 4-CHANNEL-MOD
   667                                  ;	mov	byte [pattern_shift], 11 ; Pattern Size = 1024 bytes
   668                                  
   669                                  IsModFile:
   670 000003AB A0[80560000]            	mov     al, [Header+ModHeader.mhOrderLen]
   671 000003B0 A2[06570000]            	mov     [ModInfo.OrderLen], al
   672                                  
   673 000003B5 A0[81560000]            	mov     al, [Header+ModHeader.mhReStart]
   674 000003BA 3A05[80560000]          	cmp     al, [Header+ModHeader.mhOrderLen]
   675 000003C0 7202                    	jb      short SetReStart
   676 000003C2 B07F                    	mov     al, 7Fh
   677                                  SetReStart:
   678 000003C4 A2[07570000]            	mov     [ModInfo.ReStart], al
   679                                  
   680                                  	;mov	ecx, 128
   681 000003C9 66B98000                	mov	cx, 128
   682 000003CD 31D2                    	xor     edx, edx
   683 000003CF 31DB                    	xor     ebx, ebx
   684                                  CopyOrder:
   685 000003D1 8AB3[82560000]          	mov     dh, [Header+ModHeader.mhOrder+ebx]
   686 000003D7 88B3[08570000]          	mov     [ModInfo.Order+ebx], dh
   687 000003DD 38D6                    	cmp     dh, dl
   688 000003DF 7202                    	jb      short NextOrder
   689 000003E1 88F2                    	mov     dl, dh ; Max. pattern number ; 04/10/2017
   690                                  NextOrder:
   691 000003E3 43                      	inc     ebx
   692 000003E4 E2EB                    	loop    CopyOrder
   693                                  AllocPatterns:  
   694 000003E6 81E2FF000000            	and	edx, 0FFh
   695                                  	; 04/10/2017
   696                                  	;inx	dx  ; 12/03/2017
   697 000003EC FEC2                    	inc	dl
   698                                  	; dl = number of patterns (04/07/2017)
   699 000003EE 8A0D[F1510000]          	mov	cl, [pattern_shift] ; 10 for 4 channels, 11 for 8 channels
   700 000003F4 D3E2                    	shl	edx, cl ; 10 ; *1024 ; (byte count of patterns *64*4*4)
   701                                  		     	     ; *2048 ; (byte count of patterns *64*8*4)
   702                                  	;
   703 000003F6 89D5                    	mov	ebp, edx ; offset of samples (04/07/2017)
   704                                  	;mov	ecx, 10000h ; next 64K (4096*16)
   705 000003F8 B9[00000400]            	mov	ecx, file_buffer ; 12/03/2017
   706                                  	;
   707 000003FD 890D[88570000]          	mov	[ModInfo.Patterns], ecx
   708                                  	;
   709 00000403 01CD                    	add	ebp, ecx ; next offset for samples
   710                                  ReadPatterns:  
   711                                  	;mov	ebx, [FileHandle] 
   712                                  	; ebx = File handle
   713                                  	; ecx = Buffer address
   714                                  	; edx = Byte count
   715                                  	sys	_read, [FileHandle]
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000405 8B1D[C6520000]      <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000040B B803000000          <1>  mov eax, %1
   110                              <1> 
   111 00000410 CD40                <1>  int 40h
   716 00000412 0F8286000000            	jc      CloseFile
   717                                  
   718                                  	; patterns have been loaded here... (04/07/2017)
   719                                  
   720 00000418 BE[DE520000]            	mov	esi, Header+ModHeader.mhSamples
   721 0000041D 31FF                    	xor     edi, edi
   722                                  CopySamples:
   723 0000041F 668B4616                	mov     ax, [esi+ModSample.msLength]
   724 00000423 86C4                    	xchg    al, ah
   725                                  	;shl	ax, 1
   726                                  	; 27/11/2023
   727 00000425 D1E0                    	shl	eax, 1
   728 00000427 668987[08580000]        	mov     [ModInfo.SampLen+edi], ax
   729                                  	; 27/11/2023
   730 0000042E 31C0                    	xor	eax, eax
   731 00000430 8A4619                  	mov     al, [esi+ModSample.msVolume]
   732                                  	;xor	ah, ah
   733 00000433 668987[C2580000]        	mov     [ModInfo.SampVol+edi], ax
   734 0000043A 668B461A                	mov     ax, [esi+ModSample.msRepeat]
   735 0000043E 86C4                    	xchg    al, ah
   736                                  	;shl	ax, 1
   737                                  	; 27/11/2023
   738 00000440 D1E0                    	shl	eax, 1
   739 00000442 668987[46580000]        	mov     [ModInfo.SampRep+edi], ax
   740 00000449 668B461C                	mov     ax, [esi+ModSample.msRepLen]
   741 0000044D 86C4                    	xchg    al, ah
   742                                  	;shl	ax, 1
   743                                  	; 27/11/2023
   744 0000044F D1E0                    	shl	eax, 1
   745 00000451 668987[84580000]        	mov     [ModInfo.SampRepLen+edi], ax
   746 00000458 83C61E                  	add     esi, ModSample.size
   747                                  	;add	di, 2
   748                                  	; 27/11/2023
   749 0000045B 47                      	inc	edi
   750 0000045C 47                      	inc	edi
   751 0000045D 6683FF3E                	cmp     di, 2*31
   752 00000461 72BC                    	jb      short CopySamples
   753                                  
   754 00000463 31F6                    	xor     esi, esi
   755                                  AllocSamples:
   756 00000465 0FB796[08580000]        	movzx	edx, word [ModInfo.SampLen+esi]
   757                                  	; 07/10/2017
   758                                  	;shr	dx, 4 ; ***
   759 0000046C 21D2                    	and	edx, edx
   760 0000046E 7426                    	jz      short NextSample
   761                                  	;inc	dx  ; number of paragraphs ; ***
   762                                  	;shl	dx, 4 ; ***
   763 00000470 89E8                    	mov	eax, ebp
   764 00000472 668986[8C570000]        	mov	[ModInfo.SampOfs+esi], ax
   765 00000479 C1E810                  	shr	eax, 16
   766 0000047C 668986[CA570000]        	mov	[ModInfo.SampSeg+esi], ax
   767 00000483 89E9                    	mov	ecx, ebp
   768 00000485 01D5                    	add	ebp, edx ; next offset for sample 
   769                                  ReadSample:
   770                                  	;mov	ebx, [FileHandle]
   771                                  	;movzx  edx, [ModInfo.SampLen+esi]
   772                                  	;mov    ecx, [ModInfo.SampOfs+esi]
   773                                  
   774                                  	; ebx = File handle
   775                                  	; ecx = Buffer address
   776                                  	; edx = Byte count
   777                                  	sys	_read, [FileHandle]
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000487 8B1D[C6520000]      <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 0000048D B803000000          <1>  mov eax, %1
   110                              <1> 
   111 00000492 CD40                <1>  int 40h
   778 00000494 7208                    	jc      short CloseFile
   779                                  
   780                                  NextSample:
   781                                  	;add	si, 2
   782                                  	; 27/11/2023
   783 00000496 46                      	inc	esi
   784 00000497 46                      	inc	esi
   785 00000498 6683FE3E                	cmp     si, 2*31
   786 0000049C 72C7                    	jb      short AllocSamples
   787                                  CloseFile:      
   788 0000049E 9C                      	pushf
   789                                  	sys	_close, [FileHandle]
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 0000049F 8B1D[C6520000]      <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 000004A5 B806000000          <1>  mov eax, %1
   110                              <1> 
   111 000004AA CD40                <1>  int 40h
   790 000004AC 9D                      	popf
   791                                  Failed:       
   792 000004AD 61                      	popad
   793 000004AE C3                      	retn
   794                                  
   795                                  FreeModule:
   796                                  	; Erdogan Tan (13/02/2017)
   797                                  	; nothing to do here for memory de-allocation
   798                                  ClearModInfo:
   799 000004AF 57                      	push	edi
   800 000004B0 BF[06570000]            	mov	edi, ModInfo
   801 000004B5 B9FA010000              	mov     ecx, ModInfoRec.size
   802                                  	;cld
   803 000004BA 30C0                    	xor     al, al
   804 000004BC F3AA                    	rep     stosb
   805 000004BE 5F                      	pop	edi
   806 000004BF C3                      	retn
   807                                  
   808                                  ;=============================================================================
   809                                  ;               MODPLAY.ASM
   810                                  ;=============================================================================
   811                                  
   812                                  ; Amiga Module Loader v0.3b by Carlos Hasan.
   813                                  ;	July 23th, 1993.
   814                                  
   815                                  ; EQUATES
   816                                  
   817                                  ;NumTracks	equ 4 ; 07/10/2017 ([numtracks])
   818                                  DefTempo        equ 6
   819                                  DefBpm          equ 125
   820                                  MidCRate        equ 8448
   821                                  MixBufSize	equ 4096
   822                                  ;MixBufSize	equ 7680 ; 17/10/2017 ; ((48000/50)*8)
   823                                  
   824                                  ; STRUCTURES
   825                                  
   826                                  struc TrackInfo  ; 01/10/2017 (TMODPLAY.ASM) modif. by Erdogan Tan
   827 00000000 ????????                .Samples:	resd 1
   828                                  ;.Position:	resw 1
   829 00000004 ????????                .Position:	resd 1 ; 01/10/2017 - TRDOS 386 modification ! 
   830 00000008 ????                    .Len:		resw 1
   831 0000000A ????                    .Repeat:	resw 1
   832 0000000C ????                    .RepLen:	resw 1
   833 0000000E ??                      .Volume: 	resb 1 ; Volume
   834 0000000F ??                      .VolDiff:	resb 1 ; 01/10/2017 ; Volume difference (Tremolo)
   835                                  ;.Error:	resb 1
   836                                  ;.Reserved:	resb 1 ; 01/10/2017
   837 00000010 ????                    .Period:	resw 1 ; Period
   838 00000012 ????                    .Pitch:		resw 1 
   839 00000014 ????                    .Effect:	resw 1 ; Effect
   840 00000016 ????                    .PortTo:	resw 1 ; Toneporta wanted period
   841 00000018 ??                      .PortParm:	resb 1 ; Toneporta speed
   842 00000019 ??                      .VibPos:	resb 1 ; Vibrato wave position 
   843 0000001A ??                      .VibParm:	resb 1 ; Vibrato depth/rate
   844 0000001B ??                      .TremPos:	resb 1 ; 01/10/2017 ; Tremolo wave position
   845 0000001C ??                      .TremParm:	resb 1 ; 01/10/2017 ; Tremolo depth/rate
   846                                  ;.OldSampOfs:	resb 1 ; ******* ; 01/10/2017
   847 0000001D ??                      .Error:		resb 1 ; 01/10/2017
   848 0000001E ????????????            .Arp:		resw 3
   849 00000024 ????                    .ArpIndex:	resw 1
   850                                  .size:		; 38 bytes ; 01/10/2017 -  TRDOS 386
   851                                  endstruc
   852                                  
   853                                  ; CODE
   854                                  
   855                                  ;--------------------------------------------------------------------------
   856                                  ; updatechannel - update the track using the current effect
   857                                  ;--------------------------------------------------------------------------
   858                                  ; 
   859                                  ;--------------------------------------------------------------------------
   860                                  ; 	Track:  Process the next 	 in one track.
   861                                  ;  In:
   862                                  ;    ds:di -  Track info Address.
   863                                  ;--------------------------------------------------------------------------
   864                                  
   865                                  ; edi = Track info address
   866                                  
   867                                  updatechannel:
   868                                  BeatTrack:	; updatechannel ; 01/10/2017 (TMODPLAY.ASM)
   869                                  
   870 000004C0 668B5714                	mov     dx, [edi+TrackInfo.Effect]
   871                                  
   872                                  	;test   dx, dx
   873                                  	;je     short None
   874                                  	;cmp    dh, 00h
   875                                  	;je     short Arpeggio
   876                                  	;cmp    dh, 01h
   877                                  	;je     short PortUp
   878                                  	;cmp    dh, 02h
   879                                  	;je     short PortDown
   880                                  	;cmp    dh, 03h
   881                                  	;je     TonePort
   882                                  	;cmp    dh, 04h
   883                                  	;je     Vibrato
   884                                  	;cmp    dh, 05h
   885                                  	;je     PortSlide
   886                                  	;cmp    dh, 06h
   887                                  	;je     VibSlide
   888                                  	;cmp    dh, 0Ah
   889                                  	;je     VolSlide
   890                                  	;retn
   891                                  
   892 000004C4 0FB6C6                  	movzx	eax, dh
   893 000004C7 240F                    	and	al, 0Fh
   894 000004C9 FF2485[00500000]        	jmp	dword [4*eax+efxtable2] ; TRDOS 386 ! (32 bits)
   895                                  efxnull:
   896                                  None:           
   897 000004D0 C3                      	retn
   898                                  efxarpeggio2:
   899                                  	; 01/10/2017
   900 000004D1 84D2                    	test    dl, dl
   901 000004D3 74FB                    	jz      short efxnull
   902                                  Arpeggio:
   903 000004D5 0FB75F24                	movzx   ebx, word [edi+TrackInfo.ArpIndex]
   904 000004D9 668B441F1E              	mov     ax, [edi+TrackInfo.Arp+ebx]
   905 000004DE 66894712                	mov     [edi+TrackInfo.Pitch], ax
   906 000004E2 6683C302                	add     bx, 2
   907 000004E6 6683FB06                	cmp     bx, 6
   908 000004EA 7202                    	jb      short SetArpIndex
   909 000004EC 31DB                    	xor     ebx, ebx
   910                                  SetArpIndex:
   911 000004EE 66895F24                	mov     [edi+TrackInfo.ArpIndex], bx
   912 000004F2 C3                      	retn
   913                                  efxportaup:
   914                                  PortUp:
   915 000004F3 30F6                    	xor     dh, dh
   916                                  	;mov	bx, [edi+TrackInfo.Period]
   917 000004F5 0FB75F10                	movzx	ebx, word [edi+TrackInfo.Period] ; 02/10/2017
   918 000004F9 6629D3                  	sub     bx, dx
   919                                  	;cmp	bx, 113
   920 000004FC 6683FB1C                	cmp	bx, 28 ; 01/10/2017 
   921 00000500 7D04                    	jge     short NotSmall
   922                                  	;mov	bx, 113
   923 00000502 66BB1C00                	mov	bx, 28 ; 01/10/2017
   924                                  NotSmall:
   925 00000506 66895F10                	mov     [edi+TrackInfo.Period], bx
   926 0000050A 6601DB                  	add     bx, bx
   927                                  	;mov	ax, [PitchTable+bx]
   928 0000050D 668B83[00590000]        	mov	ax, [PitchTable+ebx]  ; 02/10/2017
   929 00000514 66894712                	mov     [edi+TrackInfo.Pitch], ax
   930 00000518 C3                      	retn
   931                                  efxportadown:
   932                                  PortDown:
   933 00000519 30F6                    	xor     dh, dh
   934                                  	;mov	bx, [edi+TrackInfo.Period]
   935 0000051B 0FB75F10                	movzx	ebx, word [edi+TrackInfo.Period] ; 02/10/2017
   936 0000051F 6601D3                  	add     bx, dx
   937 00000522 6681FB600D              	cmp	bx, 3424 ; 01/10/2017 
   938                                  	;cmp	bx, 856
   939 00000527 7E04                    	jle     short NotBig
   940                                  	;mov	bx, 856
   941 00000529 66BB600D                	mov	bx, 3424 ; 01/10/2017
   942                                  NotBig:         
   943 0000052D 66895F10                	mov     [edi+TrackInfo.Period], bx
   944 00000531 6601DB                  	add     bx, bx
   945                                  	;mov	ax, [PitchTable+bx]
   946 00000534 668B83[00590000]        	mov	ax, [PitchTable+ebx]  ; 02/10/2017
   947 0000053B 66894712                	mov     [edi+TrackInfo.Pitch], ax
   948 0000053F C3                      	retn
   949                                  efxtoneporta2:
   950                                  TonePort:
   951 00000540 30F6                    	xor     dh, dh
   952 00000542 668B4716                	mov     ax, [edi+TrackInfo.PortTo]
   953                                  	;mov	bx, [edi+TrackInfo.Period]
   954 00000546 0FB75F10                	movzx	ebx, word [edi+TrackInfo.Period] ; 02/10/2017
   955 0000054A 6639C3                  	cmp     bx, ax
   956 0000054D 7429                    	je      short NoPort
   957 0000054F 7F0D                    	jg      short PortToUp
   958                                  PortToDown:     
   959 00000551 6601D3                  	add     bx, dx
   960 00000554 6639C3                  	cmp     bx, ax
   961 00000557 7E0D                    	jle     short SetPort
   962                                  FixPort:        
   963 00000559 6689C3                  	mov     bx, ax
   964 0000055C EB08                    	jmp     short SetPort
   965                                  PortToUp:
   966 0000055E 6629D3                  	sub     bx, dx
   967 00000561 6639C3                  	cmp     bx, ax
   968 00000564 7CF3                    	jl      short FixPort
   969                                  SetPort:        
   970 00000566 66895F10                	mov     [edi+TrackInfo.Period], bx
   971 0000056A 6601DB                  	add     bx, bx
   972                                  	;mov	ax, [PitchTable+bx]
   973 0000056D 668B83[00590000]        	mov	ax, [PitchTable+ebx]  ; 02/10/2017
   974 00000574 66894712                	mov     [edi+TrackInfo.Pitch], ax
   975                                  NoPort:         
   976 00000578 C3                      	retn
   977                                  efxvibrato2:
   978                                  	; 01/10/2017
   979                                  Vibrato:
   980 00000579 88D6                    	mov     dh, dl
   981                                  	;and	dl, 0Fh
   982                                  	;shr	dh, 4
   983                                  	;shl	dh, 2
   984 0000057B 6681E20FF0              	and     dx, 0F00Fh
   985 00000580 C0EE02                  	shr     dh, 2
   986                                  	;add	[edi+TrackInfo.VibPos], dh
   987                                  	;mov	dh, [edi+TrackInfo.VibPos]
   988                                  	;mov	bl, dh
   989 00000583 8A5F19                  	mov	bl, [edi+TrackInfo.VibPos]  ; 01/10/2017
   990 00000586 007719                  	add	[edi+TrackInfo.VibPos], dh
   991 00000589 88DE                    	mov	dh, bl ; 01/10/2017
   992 0000058B C0EB02                  	shr     bl, 2
   993                                  	;and	bx, 1Fh
   994                                  	;mov	al, [SinTable+bx]
   995 0000058E 83E31F                  	and	ebx, 1Fh
   996 00000591 8A83[E8500000]          	mov	al, [SinTable+ebx]
   997 00000597 F6E2                    	mul     dl
   998                                  	;rol	ax, 1
   999                                  	;xchg	al, ah
  1000                                  	;and	ah, 1
  1001 00000599 66C1E807                	shr	ax, 7
  1002 0000059D 84F6                    	test    dh, dh
  1003 0000059F 7903                    	jns     short VibUp
  1004 000005A1 66F7D8                  	neg     ax
  1005                                  VibUp:          
  1006 000005A4 66034710                	add     ax, [edi+TrackInfo.Period]
  1007 000005A8 6689C3                  	mov	bx, ax
  1008                                  	;movzx	ebx, ax
  1009 000005AB 6683FB71                	cmp     bx, 113
  1010                                  	;cmp	bx, 113
  1011 000005AF 6683FB1C                	cmp	bx, 28  ; 01/10/2017
  1012 000005B3 7D06                    	jge     short NoLoVib
  1013                                  	;mov	bx, 113
  1014 000005B5 66BB1C00                	mov	bx, 28	; 01/10/2017
  1015 000005B9 EB0B                    	jmp	short NoHiVib ; 01/10/2017	
  1016                                  NoLoVib:        
  1017 000005BB 6681FB600D              	cmp	bx, 3424 ; 01/10/2017 
  1018                                  	;cmp	bx, 856
  1019 000005C0 7E04                    	jle     short NoHiVib
  1020                                  	;mov	bx, 856
  1021 000005C2 66BB600D                	mov	bx, 3424 ; 01/10/2017
  1022                                  NoHiVib:        
  1023 000005C6 6601DB                  	add     bx, bx
  1024                                  	;mov	ax, [PitchTable+bx]
  1025 000005C9 668B83[00590000]        	mov	ax, [PitchTable+ebx] ; 01/10/2017
  1026 000005D0 66894712                	mov     [edi+TrackInfo.Pitch], ax
  1027 000005D4 C3                      	retn
  1028                                  efxtoneslide:
  1029                                  PortSlide:
  1030 000005D5 E812000000              	call    VolSlide
  1031 000005DA 8A5718                  	mov     dl, [edi+TrackInfo.PortParm]  ; .tonespeed
  1032 000005DD E95EFFFFFF              	jmp     TonePort  ; efxtoneporta2
  1033                                  efxvibslide:
  1034                                  VibSlide:
  1035 000005E2 E805000000              	call    VolSlide
  1036 000005E7 8A571A                  	mov     dl, [edi+TrackInfo.VibParm]
  1037 000005EA EB8D                    	jmp     short Vibrato  ; efxvibrato2
  1038                                  efxvolslide:
  1039                                  VolSlide:
  1040 000005EC 88D6                    	mov     dh, dl
  1041 000005EE 80E20F                  	and     dl, 0Fh
  1042 000005F1 C0EE04                  	shr     dh, 4
  1043 000005F4 8A470E                  	mov     al, [edi+TrackInfo.Volume]
  1044 000005F7 28D0                    	sub     al, dl
  1045 000005F9 7D02                    	jge     short NoLoVol
  1046 000005FB 30C0                    	xor     al, al
  1047                                  NoLoVol:        
  1048 000005FD 00F0                    	add     al, dh
  1049 000005FF 3C40                    	cmp     al, 64
  1050 00000601 7602                    	jbe     short NoHiVol
  1051 00000603 B040                    	mov     al, 64
  1052                                  NoHiVol:        
  1053 00000605 88470E                  	mov     [edi+TrackInfo.Volume], al
  1054 00000608 C3                      	retn
  1055                                  
  1056                                  efxtremolo2:
  1057                                  	; 01/10/2017 (TMODPLAY.ASM)
  1058                                  Tremolo:
  1059 00000609 88D6                    	mov     dh, dl
  1060 0000060B 6681E20FF0              	and     dx, 0F00Fh
  1061 00000610 C0EE02                  	shr     dh, 2
  1062 00000613 8A5F1B                  	mov	bl, [edi+TrackInfo.TremPos]
  1063 00000616 00771B                  	add	[edi+TrackInfo.TremPos], dh
  1064 00000619 88DE                    	mov	dh, bl
  1065 0000061B C0EB02                  	shr     bl, 2
  1066                                  	; 01/10/2017 - TRDOS 386
  1067                                  	;and	bx, 1Fh
  1068 0000061E 83E31F                  	and	ebx, 1Fh 
  1069                                  	;mov	al, [SinTable+bx]
  1070 00000621 8A83[E8500000]          	mov     al, [SinTable+ebx]
  1071 00000627 F6E2                    	mul     dl
  1072 00000629 66C1E806                	shr	ax, 6
  1073 0000062D 84F6                    	test    dh, dh
  1074 0000062F 7D03                    	jge	short Tremolo_1 ; efxtremolof2
  1075 00000631 66F7D8                  	neg     ax
  1076                                  efxtremolof2:
  1077                                  Tremolo_1:      
  1078 00000634 8A670E                  	mov	ah, [edi+TrackInfo.Volume]    
  1079 00000637 00E0                    	add     al, ah
  1080 00000639 7D02                    	jge     short Tremolo_2 ; efxtremolof3
  1081 0000063B 30C0                    	xor     al, al
  1082                                  efxtremolof3:
  1083                                  Tremolo_2:       
  1084 0000063D 3C40                    	cmp     al, 64 ; 40h
  1085 0000063F 7E02                    	jle     short Tremolo_3 ; efxtremolof4
  1086 00000641 B040                    	mov     al, 64 ; 40h
  1087                                  efxtremolof4:
  1088                                  Tremolo_3:       
  1089 00000643 28E0                    	sub	al, ah  ; ****** 
  1090 00000645 88470F                  	mov     [edi+TrackInfo.VolDiff], al
  1091 00000648 C3                      	retn	
  1092                                  
  1093                                  ;--------------------------------------------------------------------------
  1094                                  ; readchannel - read the next note event from the pattern sheet
  1095                                  ;--------------------------------------------------------------------------
  1096                                  ;
  1097                                  ;--------------------------------------------------------------------------
  1098                                  ; GetTrack:   Get the next Note from a pattern.
  1099                                  ;  In:
  1100                                  ;    ds:di -  Track info Address.
  1101                                  ;    es:si -  Pattern Note Address.
  1102                                  ; Out:
  1103                                  ;    es:si -  The Next Pattern Note address.
  1104                                  ;--------------------------------------------------------------------------
  1105                                  
  1106                                  ; esi = Pattern note address
  1107                                  ; edi = Track info address
  1108                                  
  1109                                  readchannel:
  1110                                  GetTrack: 	; readchannel ; 01/10/2017 (TMODPLAY.ASM)
  1111 00000649 66AD                    	lodsw
  1112 0000064B 86C4                    	xchg    al, ah
  1113 0000064D 88E3                    	mov	bl, ah
  1114 0000064F 80E40F                  	and     ah, 0Fh
  1115 00000652 6689C1                  	mov     cx, ax
  1116 00000655 66AD                    	lodsw
  1117 00000657 86C4                    	xchg    al, ah
  1118 00000659 88E7                    	mov     bh, ah
  1119 0000065B 80E40F                  	and     ah, 0Fh
  1120 0000065E 6689C2                  	mov     dx, ax
  1121 00000661 66895714                	mov     [edi+TrackInfo.Effect], dx
  1122                                  	; 01/10/2017 - TRDOS 386
  1123                                  	;and	bl, 0F0h
  1124 00000665 81E3F0FF0000            	and	ebx, 0FFF0h
  1125 0000066B C0EF04                  	shr     bh, 4
  1126 0000066E 08FB                    	or      bl, bh
  1127 00000670 7446                    	jz      short SetPeriod
  1128                                  SetSample:
  1129 00000672 30FF                    	xor	bh, bh
  1130                                  	;and	ebx, 0FFh
  1131 00000674 FECB                    	dec     bl
  1132 00000676 01DB                    	add     ebx, ebx
  1133 00000678 668B83[C2580000]        	mov     ax, [ModInfo.SampVol+ebx]
  1134 0000067F 88470E                  	mov     [edi+TrackInfo.Volume], al
  1135 00000682 668B83[8C570000]        	mov     ax, [ModInfo.SampOfs+ebx]
  1136 00000689 668907                  	mov     [edi+TrackInfo.Samples], ax
  1137 0000068C 668B83[CA570000]        	mov     ax, [ModInfo.SampSeg+ebx]
  1138 00000693 66894702                	mov     [edi+TrackInfo.Samples+2], ax
  1139 00000697 668B83[08580000]        	mov     ax, [ModInfo.SampLen+ebx]
  1140 0000069E 66894708                	mov     [edi+TrackInfo.Len], ax
  1141 000006A2 668B83[46580000]        	mov     ax, [ModInfo.SampRep+ebx]
  1142 000006A9 6689470A                	mov     [edi+TrackInfo.Repeat], ax
  1143 000006AD 668B83[84580000]        	mov     ax, [ModInfo.SampRepLen+ebx]
  1144 000006B4 6689470C                	mov     [edi+TrackInfo.RepLen], ax
  1145                                  SetPeriod:      
  1146 000006B8 6685C9                  	test    cx, cx
  1147 000006BB 7425                    	jz      short SetEffect
  1148                                  
  1149 000006BD 66894F16                	mov     [edi+TrackInfo.PortTo], cx ; *
  1150                                  	
  1151 000006C1 80FE03                  	cmp     dh, 03h
  1152                                  	;je	short SetEffect
  1153 000006C4 7428                    	je	short efxtoneporta ; 01/10/2017
  1154                                  
  1155 000006C6 66894F10                	mov     [edi+TrackInfo.Period], cx
  1156                                  	;movzx	ebx, cx
  1157 000006CA 6689CB                  	mov     bx, cx
  1158 000006CD 6601DB                  	add     bx, bx
  1159                                  	;mov	ax, [PitchTable+bx]
  1160 000006D0 668B83[00590000]        	mov	ax, [PitchTable+ebx] ; 01/10/2017
  1161 000006D7 66894712                	mov     [edi+TrackInfo.Pitch], ax
  1162 000006DB C7470400000000          	mov     dword [edi+TrackInfo.Position], 0
  1163                                  SetEffect:
  1164                                  	;test	dx, dx
  1165                                  	;je	short InitNone
  1166                                  	;cmp	dh, 00h
  1167                                  	;je	InitArpeggio
  1168                                  	;cmp	dh, 03h
  1169                                  	;je	short InitTonePort
  1170                                  	;cmp	dh, 04h
  1171                                  	;je	short InitVibrato
  1172                                  	;cmp	dh, 09h
  1173                                  	;je	short SampleOfs
  1174                                  	;cmp	dh, 0Bh
  1175                                  	;je	short PosJump
  1176                                  	;cmp	dh, 0Ch
  1177                                  	;je	short SetVolume
  1178                                  	;cmp	dh, 0Dh
  1179                                  	;je	short Break
  1180                                  	;cmp	dh, 0Fh
  1181                                  	;je	SetSpeed
  1182                                  	;retn
  1183                                  
  1184                                  	; 01/10/2017 (TMODPLAY.ASM)
  1185                                  	
  1186                                  	; dx = [di+TrackInfo.Effect]
  1187                                  	
  1188 000006E2 0FB6C6                  	movzx	eax, dh
  1189 000006E5 240F                    	and	al, 0Fh
  1190 000006E7 FF2485[C04F0000]        	jmp	dword [4*eax+efxtable] ; TRDOS 386 ! (32 bits)
  1191                                  ;efxnull:
  1192                                  ;InitNone:
  1193                                  ;	retn
  1194                                  efxtoneporta:
  1195                                  	; 01/10/2017
  1196                                  	; cx = period
  1197                                  	;mov	[edi+TrackInfo.PortTo], cx ; *
  1198                                  InitTonePort:
  1199 000006EE 84D2                    	test    dl, dl
  1200 000006F0 7503                    	jnz     short SetPortParm
  1201 000006F2 8A5718                  	mov     dl, [edi+TrackInfo.PortParm] ; .tonespeed
  1202                                  SetPortParm:    
  1203 000006F5 885718                  	mov     [edi+TrackInfo.PortParm], dl
  1204 000006F8 66895714                	mov     [edi+TrackInfo.Effect], dx
  1205 000006FC C3                      	retn
  1206                                  efxvibrato:
  1207                                  InitVibrato:
  1208 000006FD 8A471A                  	mov     al, [edi+TrackInfo.VibParm]
  1209 00000700 88C4                    	mov     ah, al
  1210                                  	;and	al, 0Fh
  1211                                  	;and	ah, 0F0h
  1212 00000702 66250FF0                	and	ax, 0F00Fh
  1213 00000706 F6C20F                  	test    dl, 0Fh
  1214 00000709 7502                    	jne     short OkDepth
  1215 0000070B 08C2                    	or      dl, al
  1216                                  OkDepth:        
  1217 0000070D F6C2F0                  	test    dl, 0F0h
  1218 00000710 7502                    	jnz     short OkRate
  1219 00000712 08E2                    	or      dl, ah
  1220                                  OkRate:         
  1221 00000714 88571A                  	mov     [edi+TrackInfo.VibParm], dl
  1222 00000717 66895714                	mov     [edi+TrackInfo.Effect], dx
  1223 0000071B 6685C9                  	test    cx, cx
  1224 0000071E 7404                    	jz      short OkPos
  1225 00000720 C6471900                	mov     byte [edi+TrackInfo.VibPos], 0
  1226                                  OkPos:          
  1227 00000724 C3                      	retn
  1228                                  efxsampoffset:
  1229                                  	; 01/10/2017 ; *******
  1230                                  SampleOfs:         
  1231                                  ;	test    dl, dl
  1232                                  ;	jnz     short SetSampleOfs
  1233                                  ;	mov     dl, [edi+TrackInfo.OldSampOfs]
  1234                                  ;SetSampleOfs:
  1235                                  ;	mov     [edi+TrackInfo.OldSampOfs], dl
  1236 00000725 88D6                    	mov     dh, dl
  1237 00000727 81E200FF0000            	and 	edx, 0FF00h ; 05/03/2017
  1238 0000072D 895704                  	mov     [edi+TrackInfo.Position], edx
  1239 00000730 C3                      	retn
  1240                                  efxpattjump:
  1241                                  PosJump:
  1242 00000731 8815[C2D40000]          	mov     [OrderPos], dl
  1243 00000737 C605[C6D40000]40        	mov     byte [Row], 64
  1244 0000073E C3                      	retn
  1245                                  efxsetvolume:
  1246                                  SetVolume:
  1247 0000073F 80FA40                  	cmp     dl, 64
  1248 00000742 7602                    	jbe     short OkVol
  1249 00000744 B240                    	mov     dl, 64
  1250                                  OkVol:
  1251                                  	; 01/10/2017 (TrackInfo.VolDiff, tremolo effect)
  1252 00000746 30F6                    	xor	dh, dh ; reset TrackInfo.VolDiff ; Not necessary !?
  1253                                  	;mov	[edi+TrackInfo.Volume], dl
  1254 00000748 6689570E                	mov	[edi+TrackInfo.Volume], dx 
  1255 0000074C C3                      	retn
  1256                                  efxbreak:
  1257                                  Break:
  1258 0000074D 88D6                    	mov     dh, dl
  1259 0000074F 80E20F                  	and     dl, 0Fh
  1260 00000752 C0EE04                  	shr     dh, 4
  1261 00000755 00F6                    	add     dh, dh
  1262 00000757 00F2                    	add     dl, dh
  1263 00000759 C0E602                  	shl     dh, 2
  1264 0000075C 00F2                    	add     dl, dh
  1265 0000075E 8815[C7D40000]          	mov     [BreakRow], dl
  1266 00000764 C605[C6D40000]40        	mov     byte [Row], 64
  1267 0000076B C3                      	retn
  1268                                  efxsetspeed:
  1269                                  SetSpeed:
  1270 0000076C 84D2                    	test    dl,dl
  1271 0000076E 7431                    	je      Skip
  1272 00000770 80FA1F                  	cmp     dl,31
  1273 00000773 770D                    	ja      short SetBpm
  1274                                  SetTempo:       
  1275 00000775 8815[C3D40000]          	mov     [Tempo], dl
  1276 0000077B 8815[C4D40000]          	mov     [TempoWait], dl
  1277 00000781 C3                      	retn
  1278                                  SetBpm:
  1279 00000782 8815[C5D40000]          	mov     [Bpm], dl
  1280 00000788 B067                    	mov     al, 103
  1281 0000078A F6E2                    	mul     dl
  1282 0000078C 88E3                    	mov     bl, ah
  1283 0000078E 30FF                    	xor     bh, bh
  1284 00000790 66A1[F8510000]          	mov     ax, [MixSpeed]
  1285                                  	;xor	dx, dx
  1286                                  	; 27/11/2023
  1287 00000796 31D2                    	xor	edx, edx
  1288 00000798 66F7F3                  	div     bx
  1289 0000079B 66A3[C8D40000]          	mov     [BpmSamples], ax
  1290                                  Skip:           
  1291 000007A1 C3                      	retn
  1292                                  efxarpeggio:
  1293                                  	; 01/10/2017
  1294 000007A2 84D2                    	test    dl, dl
  1295                                  	;je	efxnull
  1296 000007A4 74FB                    	je	short Skip
  1297                                  InitArpeggio:
  1298 000007A6 88D6                    	mov     dh, dl
  1299 000007A8 80E20F                  	and     dl, 0Fh
  1300 000007AB C0EE04                  	shr     dh, 4
  1301                                  	; 01/10/2017
  1302                                  	;mov	cx, 36
  1303 000007AE 66B95400                	mov	cx, 84 ; 84 notes/periods
  1304 000007B2 31DB                    	xor     ebx, ebx
  1305 000007B4 668B4710                	mov     ax, [edi+TrackInfo.Period]
  1306                                  gt_ScanPeriod:
  1307                                  	;cmp	ax, [PeriodTable+bx]
  1308 000007B8 663B83[40500000]        	cmp	ax, [PeriodTable+ebx]
  1309 000007BF 7306                    	jae     short SetArp
  1310 000007C1 6683C302                	add     bx, 2
  1311 000007C5 E2F1                    	loop    gt_ScanPeriod
  1312                                  SetArp:         
  1313 000007C7 6601D2                  	add     dx, dx
  1314 000007CA 00DE                    	add     dh, bl
  1315 000007CC 00DA                    	add     dl, bl
  1316                                  	; 01/10/2017
  1317                                  	;mov	bx, [PeriodTable+bx]
  1318 000007CE 668B9B[40500000]        	mov	bx, [PeriodTable+ebx]
  1319                                  	;add	bx, bx
  1320 000007D5 01DB                    	add	ebx, ebx
  1321                                  	;mov	ax, [PitchTable+bx]
  1322 000007D7 668B83[00590000]        	mov	ax, [PitchTable+ebx]
  1323 000007DE 6689471E                	mov     [edi+TrackInfo.Arp], ax
  1324 000007E2 88F3                    	mov     bl, dh
  1325 000007E4 30FF                    	xor     bh, bh
  1326 000007E6 668B9B[40500000]        	mov	bx, [PeriodTable+ebx]
  1327                                  	;add	bx, bx
  1328 000007ED 01DB                    	add	ebx, ebx
  1329                                  	;mov	ax, [PitchTable+bx]
  1330 000007EF 668B83[00590000]        	mov	ax, [PitchTable+ebx]
  1331 000007F6 66894720                	mov     [edi+TrackInfo.Arp+2], ax
  1332 000007FA 88D3                    	mov     bl, dl
  1333 000007FC 30FF                    	xor     bh, bh
  1334 000007FE 668B9B[40500000]        	mov	bx, [PeriodTable+ebx]
  1335                                  	;add	bx, bx
  1336 00000805 01DB                    	add	ebx, ebx
  1337                                  	;mov	ax, [PitchTable+bx]
  1338 00000807 668B83[00590000]        	mov	ax, [PitchTable+ebx]
  1339 0000080E 66894722                	mov     [edi+TrackInfo.Arp+4], ax
  1340 00000812 66C747240000            	mov     word [edi+TrackInfo.ArpIndex], 0
  1341 00000818 C3                      	retn
  1342                                  
  1343                                  efxtremolo:
  1344                                  	; 01/10/2017 (TMODPLAY.ASM)
  1345                                  InitTremolo:
  1346 00000819 8A471C                  	mov     al, [edi+TrackInfo.TremParm]
  1347 0000081C 88C4                    	mov     ah, al
  1348 0000081E 66250FF0                	and     ax, 0F00Fh
  1349 00000822 F6C20F                  	test    dl, 0Fh
  1350 00000825 7502                    	jnz     short InitTremolo_1 ; efxtremolof0
  1351 00000827 08C2                    	or      dl, al
  1352                                  efxtremolof0:
  1353                                  InitTremolo_1: 
  1354 00000829 F6C2F0                  	test    dl, 0F0h
  1355 0000082C 7502                    	jnz     short InitTremolo_2 ; efxtremolof1
  1356 0000082E 08E2                    	or      dl, ah
  1357                                  efxtremolof1:
  1358                                  InitTremolo_2:
  1359 00000830 88571C                  	mov     [edi+TrackInfo.TremParm], dl
  1360 00000833 66895714                	mov     [edi+TrackInfo.Effect], dx
  1361 00000837 C3                      	retn
  1362                                  
  1363                                  ;--------------------------------------------------------------------------
  1364                                  ; pollmodule - polls the module player
  1365                                  ;--------------------------------------------------------------------------
  1366                                  ;--------------------------------------------------------------------------
  1367                                  ; UpdateTracks:  Main code to process the next tick to be played.
  1368                                  ;--------------------------------------------------------------------------
  1369                                  
  1370                                  pollmodule:
  1371                                  UpdateTracks:	; polmodule ; 01/10/2017 (TMODPLAY.ASM)
  1372 00000838 FE0D[C4D40000]          	dec     byte [TempoWait]
  1373 0000083E 7417                    	jz      short GetTracks
  1374                                  
  1375                                  	;mov	ecx, NumTracks
  1376 00000840 0FB70D[F2510000]        	movzx	ecx, word [numtracks] ; 06/10/2017
  1377 00000847 BF[D8D40000]            	mov	edi, Tracks
  1378                                  BeatTracks:
  1379 0000084C E86FFCFFFF              	call	BeatTrack	
  1380 00000851 83C726                  	add	edi, TrackInfo.size
  1381 00000854 E2F6                    	loop	BeatTracks
  1382 00000856 C3                      	retn
  1383                                  GetTracks:
  1384 00000857 A0[C3D40000]            	mov     al, [Tempo]
  1385 0000085C A2[C4D40000]            	mov     [TempoWait], al
  1386                                  
  1387 00000861 8B35[D4D40000]          	mov	esi, [Note]
  1388 00000867 803D[C6D40000]40        	cmp     byte [Row], 64
  1389 0000086E 7267                    	jb      short NoPattWrap
  1390                                  
  1391 00000870 8B35[88570000]          	mov	esi, [ModInfo.Patterns]
  1392 00000876 8A1D[C2D40000]          	mov     bl, [OrderPos]
  1393 0000087C 3A1D[06570000]          	cmp     bl, [ModInfo.OrderLen]
  1394 00000882 7214                    	jb      short NoOrderWrap
  1395 00000884 8A1D[07570000]          	mov     bl, [ModInfo.ReStart]
  1396 0000088A 881D[C2D40000]          	mov     [OrderPos], bl
  1397 00000890 3A1D[06570000]          	cmp     bl, [ModInfo.OrderLen]
  1398 00000896 7363                    	jae     short NoUpdate
  1399                                  NoOrderWrap:    
  1400                                  	;xor	bh, bh
  1401 00000898 81E3FF000000            	and	ebx, 0FFh
  1402 0000089E 8A9B[08570000]          	mov     bl, [ModInfo.Order+ebx]
  1403                                  	; 05/10/2017
  1404                                  	;shl	ebx, 10 ; *1024
  1405 000008A4 8A0D[F1510000]          	mov	cl, [pattern_shift] ; 10 or 11
  1406 000008AA D3E3                    	shl	ebx, cl ; *1024 or *2048
  1407                                  	;
  1408 000008AC 01DE                    	add     esi, ebx
  1409 000008AE 8A1D[C7D40000]          	mov     bl, [BreakRow]
  1410 000008B4 881D[C6D40000]          	mov     [Row], bl
  1411                                  	;xor	bh, bh
  1412 000008BA 81E3FF000000            	and	ebx, 0FFh
  1413 000008C0 883D[C7D40000]          	mov     [BreakRow], bh ; 0
  1414                                  	;shl	bx, 4
  1415                                  	; 27/11/2023
  1416 000008C6 C1E304                  	shl	ebx, 4
  1417 000008C9 01DE                    	add     esi, ebx
  1418 000008CB 8935[D4D40000]          	mov     [Note], esi
  1419 000008D1 FE05[C2D40000]          	inc     byte [OrderPos]
  1420                                  NoPattWrap:     
  1421 000008D7 FE05[C6D40000]          	inc     byte [Row]
  1422                                  
  1423                                  	;cld
  1424                                  	;mov	ecx, NumTracks
  1425 000008DD 0FB70D[F2510000]        	movzx	ecx, word [numtracks] ; 06/10/2017
  1426 000008E4 BF[D8D40000]            	mov	edi, Tracks
  1427                                  GetTracks_next:
  1428 000008E9 51                      	push	ecx	
  1429 000008EA E85AFDFFFF              	call	GetTrack ; readchannel
  1430 000008EF 59                      	pop	ecx
  1431 000008F0 83C726                  	add	edi, TrackInfo.size
  1432 000008F3 E2F4                    	loop	GetTracks_next
  1433                                  
  1434 000008F5 8935[D4D40000]          	mov     [Note], esi
  1435                                  NoUpdate:
  1436 000008FB C3                      	retn
  1437                                  
  1438                                  ;--------------------------------------------------------------------------
  1439                                  ; MixTrack:  Mixes one track into a CLEAN buffer.
  1440                                  ;  In:
  1441                                  ;   ds:si -  Track Info Address.
  1442                                  ;   ds:di -  Buffer Address.
  1443                                  ;    cx   -  Buffer Size.
  1444                                  ;--------------------------------------------------------------------------
  1445                                  
  1446                                  ; esi = Track info address
  1447                                  ; edi = Buffer address
  1448                                  ; ecx = Buffer size
  1449                                  
  1450                                  MixTrack:
  1451 000008FC 66837E0C02              	cmp     word [esi+TrackInfo.RepLen], 2
  1452 00000901 7757                    	ja      short MixLooped
  1453                                  MixNonLooped:   
  1454 00000903 8B16                    	mov	edx, [esi+TrackInfo.Samples]
  1455 00000905 8B5E04                  	mov	ebx, [esi+TrackInfo.Position]
  1456 00000908 0FB76E08                	movzx   ebp, word [esi+TrackInfo.Len]
  1457 0000090C 52                      	push    edx
  1458 0000090D 56                      	push    esi
  1459 0000090E 01D3                    	add     ebx, edx
  1460 00000910 01D5                    	add     ebp, edx
  1461 00000912 668B5612                	mov     dx, [esi+TrackInfo.Pitch]
  1462                                  	; 01/10/2017
  1463                                  	;mov	al, [esi+TrackInfo.Volume]
  1464 00000916 668B460E                	mov	ax, [esi+TrackInfo.Volume]
  1465                                  	; ah = [esi+TrackInfo.VolDiff]
  1466 0000091A 00E0                    	add	al, ah ; ****** 
  1467 0000091C C6460F00                	mov	byte [esi+TrackInfo.VolDiff], 0
  1468 00000920 8A661D                  	mov     ah, [esi+TrackInfo.Error]
  1469 00000923 89DE                    	mov     esi, ebx
  1470 00000925 31DB                    	xor	ebx, ebx ; 01/10/2017 ; *
  1471 00000927 88C7                    	mov     bh, al
  1472 00000929 88D0                    	mov     al, dl
  1473 0000092B 88F2                    	mov     dl, dh
  1474                                  	;xor	dh, dh
  1475 0000092D 81E2FF000000            	and	edx, 0FFh
  1476                                  nlMixSamp:      
  1477 00000933 39EE                    	cmp     esi, ebp
  1478 00000935 7316                    	jae     short nlMixBye
  1479 00000937 8A1E                    	mov     bl, [esi]
  1480                                  	;mov	bl, [VolTable+bx]
  1481 00000939 8A9B[C2730000]          	mov	bl, [VolTable+ebx] ; 01/10/2017 ; *	
  1482                                  	; 17/10/2017
  1483 0000093F 001F                    	add     [edi], bl
  1484                                  	; 18/10/2017
  1485 00000941 00C4                    	add     ah, al
  1486 00000943 11D6                    	adc     esi, edx
  1487 00000945 033D[F2510000]          	add	edi, [numtracks]
  1488 0000094B E2E6                    	loop    nlMixSamp
  1489                                  nlMixBye:       
  1490 0000094D 89F3                    	mov     ebx, esi
  1491 0000094F 5E                      	pop     esi
  1492 00000950 5A                      	pop     edx
  1493 00000951 29D3                    	sub     ebx, edx
  1494 00000953 895E04                  	mov     [esi+TrackInfo.Position], ebx
  1495 00000956 88661D                  	mov     [esi+TrackInfo.Error], ah
  1496 00000959 C3                      	retn
  1497                                  MixLooped:
  1498 0000095A 8B16                    	mov	edx, [esi+TrackInfo.Samples]
  1499 0000095C 8B5E04                  	mov	ebx, [esi+TrackInfo.Position]
  1500 0000095F 0FB76E0C                	movzx	ebp, word [esi+TrackInfo.RepLen]
  1501 00000963 892D[D0D40000]          	mov     [BufRep], ebp
  1502                                  	;add	ebp, [esi+TrackInfo.Repeat] ; BUG !
  1503 00000969 66036E0A                	add     bp, [esi+TrackInfo.Repeat] ; 07/10/2017 (BUGfix!)
  1504 0000096D 52                      	push    edx
  1505 0000096E 56                      	push    esi
  1506 0000096F 01D3                    	add     ebx, edx
  1507 00000971 01D5                    	add     ebp, edx
  1508 00000973 668B5612                	mov     dx, [esi+TrackInfo.Pitch]
  1509                                  	; 01/10/2017
  1510                                  	;mov	al, [esi+TrackInfo.Volume]
  1511 00000977 668B460E                	mov	ax, [esi+TrackInfo.Volume]
  1512                                  	; ah = [esi+TrackInfo.VolDiff]
  1513 0000097B 00E0                    	add	al, ah ; ****** 
  1514 0000097D C6460F00                	mov	byte [esi+TrackInfo.VolDiff], 0
  1515 00000981 8A661D                  	mov     ah, [esi+TrackInfo.Error]
  1516                                  	;mov	si, bx
  1517 00000984 89DE                    	mov	esi, ebx ; 04/09/2017
  1518 00000986 31DB                    	xor	ebx, ebx ; 01/10/2017 ; *
  1519 00000988 88C7                    	mov     bh, al
  1520 0000098A 88D0                    	mov     al, dl
  1521 0000098C 88F2                    	mov     dl, dh
  1522                                  	;xor	dh, dh
  1523 0000098E 81E2FF000000            	and	edx, 0FFh
  1524                                  lpMixSamp:      
  1525 00000994 39EE                    	cmp     esi, ebp
  1526 00000996 7206                    	jb      short lpMixNow
  1527 00000998 2B35[D0D40000]          	sub     esi, [BufRep]
  1528                                  lpMixNow:       
  1529 0000099E 8A1E                    	mov     bl, [esi]
  1530                                  	;mov	bl, [VolTable+bx]
  1531 000009A0 8A9B[C2730000]          	mov	bl, [VolTable+ebx] ; 01/10/2017 ; *
  1532                                  	; 17/10/2017
  1533 000009A6 001F                    	add     [edi], bl
  1534                                  	; 18/10/2017
  1535 000009A8 00C4                    	add     ah, al
  1536 000009AA 11D6                    	adc     esi, edx
  1537 000009AC 033D[F2510000]          	add	edi, [numtracks]
  1538 000009B2 E2E0                    	loop    lpMixSamp
  1539                                  lpMixBye:       
  1540                                  ;	mov     ebx, esi
  1541                                  ;	pop     esi
  1542                                  ;	pop     edx
  1543                                  ;	sub     ebx, edx
  1544                                  ;	mov     [esi+TrackInfo.Position], ebx
  1545                                  ;	mov     [esi+TrackInfo.Error], ah
  1546                                  ;	retn
  1547 000009B4 EB97                    	jmp	short nlMixBye
  1548                                  
  1549                                  ;--------------------------------------------------------------------------
  1550                                  ; mixpoll - updates the output buffer
  1551                                  ;--------------------------------------------------------------------------
  1552                                  ;
  1553                                  ;--------------------------------------------------------------------------
  1554                                  ; GetSamples:  Returns the next chunk of samples to be played.
  1555                                  ;  In:
  1556                                  ;    Buffer  - Buffer Address.
  1557                                  ;    Count   - Buffer Size.
  1558                                  ;--------------------------------------------------------------------------
  1559                                  
  1560                                  mixpoll:
  1561                                  GetSamples:	; mixpoll ; 01/10/2017 (TMODPLAY.ASM)
  1562                                  	; edi = buffer address
  1563                                  	; ebx = count
  1564                                  
  1565 000009B6 60                      	pushad
  1566                                  
  1567                                  	;cld
  1568                                  NextChunk:      
  1569 000009B7 66833D[CED40000]00      	cmp     word [BufLen], 0
  1570 000009BF 756A                    	jne     short CopyChunk
  1571                                  
  1572 000009C1 53                      	push    ebx
  1573 000009C2 57                      	push    edi
  1574                                  MixChunk:       
  1575 000009C3 BF[C2B40000]            	mov	edi, MixBuffer
  1576                                  
  1577                                  	; 17/10/2017
  1578 000009C8 0FB70D[C8D40000]        	movzx	ecx, word [BpmSamples]
  1579                                  	;mov	cx, [BpmSamples]
  1580 000009CF 893D[CAD40000]          	mov     [BufPtr], edi
  1581 000009D5 66890D[CED40000]        	mov	[BufLen], cx
  1582                                  
  1583 000009DC 803D[F2510000]04        	cmp	byte [numtracks], 4
  1584 000009E3 7602                    	jna	short ch_silence
  1585                                  	;shl	cx, 1
  1586                                  	; 27/11/2023
  1587 000009E5 D1E1                    	shl	ecx, 1 
  1588                                  ch_silence:
  1589 000009E7 B880808080              	mov	eax, 80808080h
  1590 000009EC F3AB                    	rep	stosd
  1591                                  
  1592                                  	;mov	cx, NumTracks
  1593                                  	;mov	cl, NumTracks ; 01/10/2017
  1594 000009EE 8A0D[F2510000]          	mov	cl, [numtracks] ; 06/10/2017
  1595 000009F4 BE[B2D40000]            	mov	esi, Tracks - TrackInfo.size
  1596                                  GetSamples_next:
  1597 000009F9 51                      	push	ecx
  1598 000009FA 83C626                  	add	esi, TrackInfo.size
  1599 000009FD 668B0D[CED40000]        	mov	cx, [BufLen]
  1600 00000A04 8B3D[CAD40000]          	mov	edi, [BufPtr]
  1601 00000A0A E8EDFEFFFF              	call	MixTrack
  1602 00000A0F 59                      	pop	ecx
  1603 00000A10 FF05[CAD40000]          	inc	dword [BufPtr] ; 18/10/2017
  1604 00000A16 E2E1                    	loop	GetSamples_next
  1605                                  
  1606                                   	; 18/10/2017	
  1607 00000A18 8B1D[F2510000]          	mov	ebx, [numtracks]
  1608 00000A1E 291D[CAD40000]          	sub	dword [BufPtr], ebx
  1609                                  
  1610 00000A24 E80FFEFFFF              	call    UpdateTracks
  1611                                  
  1612 00000A29 5F                      	pop     edi
  1613 00000A2A 5B                      	pop     ebx
  1614                                  CopyChunk:      
  1615                                  	;mov	cx, [BufLen]
  1616 00000A2B 0FB70D[CED40000]        	movzx	ecx, word [BufLen]
  1617 00000A32 39D9                    	cmp	ecx, ebx
  1618                                  	;cmp	cx, bx
  1619 00000A34 7602                    	jbe     short MoveChunk
  1620                                  	;mov	cx, bx
  1621 00000A36 89D9                    	mov     ecx, ebx
  1622                                  MoveChunk:
  1623 00000A38 8B35[CAD40000]          	mov     esi, [BufPtr]
  1624 00000A3E 010D[CAD40000]          	add     [BufPtr], ecx
  1625 00000A44 66290D[CED40000]        	sub     [BufLen], cx
  1626 00000A4B 29CB                    	sub     ebx, ecx
  1627                                  	; 17/10/2017 ; STEREO MIXING
  1628                                  	;rep	movsb
  1629                                  	; 18/10/2017
  1630 00000A4D 803D[F2510000]04        	cmp	byte [numtracks], 4
  1631 00000A54 762F                    	jna	short _4_channels_mix ; 27/11/2023
  1632                                  	
  1633                                  _8_channels_mix:
  1634                                  	; 18/10/2017
  1635 00000A56 AD                      	lodsd 
  1636 00000A57 89C2                    	mov	edx, eax ; ch1 (al), ch2 (ah)
  1637 00000A59 C1EA10                  	shr	edx, 16 ; ch3 (dl), ch4 (dh)
  1638 00000A5C 00C6                    	add	dh, al ; ch1 + ch4
  1639 00000A5E 00E2                    	add	dl, ah ; ch2 + ch3
  1640                                  
  1641 00000A60 AD                      	lodsd
  1642 00000A61 00C6                    	add	dh, al ; ch1 + ch4 + ch5
  1643 00000A63 00E2                    	add	dl, ah ; ch2 + ch3 + ch6
  1644 00000A65 C1E810                  	shr	eax, 16 ; ch7 (al), ch8 (ah)
  1645                                  	; 19/10/2017
  1646 00000A68 00E6                    	add	dh, ah ; ch1 + ch4 + ch5 + ch8
  1647 00000A6A 00C2                    	add	dl, al ; ch2 + ch3 + ch6 + ch7
  1648                                  
  1649                                  	; L = ch1 + ch4 + ch5 + ch8
  1650                                  	; R = ch2 + ch3 + ch6 + ch7
  1651                                  
  1652 00000A6C 6681C28080              	add	dx, 8080h
  1653                                  
  1654                                  	; 19/10/2017
  1655 00000A71 88F4                    	mov	ah, dh
  1656 00000A73 80EC80                  	sub	ah, 80h
  1657 00000A76 30C0                    	xor	al, al
  1658 00000A78 66AB                    	stosw ; Left Channel
  1659 00000A7A 88D4                    	mov	ah, dl
  1660 00000A7C 80EC80                  	sub	ah, 80h
  1661 00000A7F 66AB                    	stosw ; Right Channel
  1662                                  
  1663 00000A81 E2D3                    	loop	_8_channels_mix
  1664                                  	
  1665 00000A83 EB21                    	jmp	short channel_mix_ok
  1666                                  	
  1667                                  _4_channels_mix:
  1668                                  	; 18/10/2017
  1669 00000A85 AD                      	lodsd 
  1670 00000A86 89C2                    	mov	edx, eax ; ch1 (al), ch2 (ah)
  1671                                  	; 19/10/2017
  1672 00000A88 C1E810                  	shr	eax, 16 ; ch3 (al), ch4 (ah)
  1673 00000A8B 00E2                    	add	dl, ah ; ch1 + ch4
  1674 00000A8D 00C6                    	add	dh, al ; ch2 + ch3
  1675                                  
  1676                                  	; L = ch1 + ch4
  1677                                  	; R = ch2 + ch3
  1678                                  
  1679                                  	; 19/10/2017
  1680 00000A8F 6681C28080              	add	dx, 8080h
  1681                                  
  1682                                  	; 19/10/2017
  1683 00000A94 88D4                    	mov	ah, dl
  1684 00000A96 80EC80                  	sub	ah, 80h
  1685 00000A99 30C0                    	xor	al, al
  1686 00000A9B 66AB                    	stosw ; Left Channel
  1687 00000A9D 88F4                    	mov	ah, dh
  1688 00000A9F 80EC80                  	sub	ah, 80h
  1689 00000AA2 66AB                    	stosw ; Right Channel
  1690                                  	
  1691 00000AA4 E2DF                    	loop	_4_channels_mix
  1692                                  
  1693                                  channel_mix_ok:
  1694 00000AA6 85DB                    	test    ebx, ebx
  1695                                  	;jnz	short NextChunk
  1696 00000AA8 0F8509FFFFFF            	jnz	NextChunk ; 17/10/2017
  1697                                  
  1698                                  	; 20/10/2017
  1699                                  	; 19/10/2017
  1700                                  	; Pan Control
  1701 00000AAE 8A0D[60E00000]          	mov	cl, [pan_shift]
  1702 00000AB4 08C9                    	or	cl, cl
  1703 00000AB6 744D                    	jz	short c_smpl_2
  1704                                  
  1705                                  	; 20/10/2017
  1706 00000AB8 BB00400000              	mov	ebx, BUFFERSIZE/4 ; 8192
  1707 00000ABD BF[00F00000]            	mov	edi, Audio_Buffer
  1708                                  
  1709 00000AC2 B508                    	mov	ch, 8
  1710 00000AC4 D2E5                    	shl	ch, cl
  1711                                  c_smpl_1:
  1712 00000AC6 8B17                    	mov	edx, [edi]
  1713 00000AC8 6689D0                  	mov	ax, dx
  1714 00000ACB 80FC80                  	cmp	ah, 80h
  1715 00000ACE 7208                    	jb	short _cs1	
  1716 00000AD0 00EC                    	add	ah, ch
  1717 00000AD2 730A                    	jnc	short _cs2
  1718 00000AD4 B4FF                    	mov	ah, 255
  1719 00000AD6 EB06                    	jmp	short _cs2
  1720                                  _cs1:
  1721 00000AD8 28EC                    	sub	ah, ch
  1722 00000ADA 7302                    	jnc	short _cs2
  1723 00000ADC B400                    	mov	ah, 0
  1724                                  _cs2:
  1725 00000ADE C1CA10                  	ror	edx, 16 ; dx = [edi+2]
  1726 00000AE1 00F4                    	add	ah, dh
  1727 00000AE3 6692                    	xchg	dx, ax ; xchg [edi+2], ax
  1728 00000AE5 80FC80                  	cmp	ah, 80h
  1729 00000AE8 7208                    	jb	short _cs3	
  1730 00000AEA 00EC                    	add	ah, ch
  1731 00000AEC 730A                    	jnc	short _cs4
  1732 00000AEE B4FF                    	mov	ah, 255
  1733 00000AF0 EB06                    	jmp	short _cs4
  1734                                  _cs3:
  1735 00000AF2 28EC                    	sub	ah, ch
  1736 00000AF4 7302                    	jnc	short _cs4
  1737 00000AF6 B400                    	mov	ah, 0
  1738                                  _cs4:
  1739 00000AF8 C1CA10                  	ror	edx, 16 ; dx = [edi]
  1740 00000AFB 00E6                    	add	dh, ah
  1741 00000AFD 8917                    	mov	[edi], edx
  1742                                  _cs5:
  1743                                  	; 20/10/2017
  1744 00000AFF 83C704                  	add	edi, 4
  1745 00000B02 4B                      	dec	ebx
  1746 00000B03 75C1                    	jnz	short c_smpl_1	
  1747                                  c_smpl_2:
  1748 00000B05 61                      	popad	
  1749 00000B06 C3                      	retn
  1750                                  
  1751                                  ;--------------------------------------------------------------------------
  1752                                  ; StartPlaying: Initializes the Sound System.
  1753                                  ;  In:
  1754                                  ;   Module Information Resources.
  1755                                  ;--------------------------------------------------------------------------
  1756                                  
  1757                                  StartPlaying:
  1758 00000B07 60                      	pushad
  1759                                  SetModParms:    
  1760 00000B08 C605[C2D40000]00        	mov     byte [OrderPos], 0
  1761 00000B0F C605[C3D40000]06        	mov     byte [Tempo], DefTempo
  1762 00000B16 C605[C4D40000]06        	mov     byte [TempoWait], DefTempo
  1763 00000B1D C605[C5D40000]7D        	mov     byte [Bpm], DefBpm
  1764 00000B24 C605[C6D40000]40        	mov     byte [Row], 64
  1765 00000B2B C605[C7D40000]00        	mov     byte [BreakRow], 0
  1766 00000B32 66A1[F8510000]          	mov     ax, [MixSpeed]
  1767 00000B38 31D2                    	xor     edx, edx
  1768 00000B3A 66BB3200                	mov     bx, 24*DefBpm/60
  1769 00000B3E 66F7F3                  	div     bx
  1770 00000B41 66A3[C8D40000]          	mov     [BpmSamples], ax
  1771                                  ClearTracks:    
  1772 00000B47 BF[D8D40000]            	mov     edi, Tracks
  1773                                  	; 07/10/2017
  1774                                  	;mov	ecx, NumTracks*TrackInfo.size
  1775 00000B4C B826000000              	mov	eax, TrackInfo.size
  1776 00000B51 0FB70D[F2510000]        	movzx	ecx, word [numtracks]
  1777 00000B58 F7E1                    	mul	ecx
  1778 00000B5A 89C1                    	mov	ecx, eax
  1779 00000B5C 31C0                    	xor     eax, eax
  1780                                  	;cld
  1781 00000B5E F3AA                    	rep     stosb
  1782                                  
  1783 00000B60 A3[CAD40000]            	mov     [BufPtr], eax
  1784 00000B65 66A3[CED40000]          	mov     [BufLen], ax
  1785                                  MakePitch:
  1786 00000B6B 66B80021                	mov     ax, MidCRate
  1787 00000B6F 66BBAC01                	mov     bx, 428
  1788 00000B73 66F7E3                  	mul     bx
  1789 00000B76 66F735[F8510000]        	div     word [MixSpeed]
  1790 00000B7D 30F6                    	xor     dh, dh
  1791 00000B7F 88E2                    	mov     dl, ah
  1792 00000B81 88C4                    	mov     ah, al
  1793 00000B83 30C0                    	xor     al, al
  1794                                  	;mov	cx, 857
  1795 00000B85 66B9610D                	mov	cx, 3425  ; 01/10/2017 (TMODPLAY.ASM)
  1796 00000B89 31DB                    	xor     ebx, ebx
  1797 00000B8B BF[00590000]            	mov     edi, PitchTable
  1798                                  PitchLoop:      
  1799 00000B90 50                      	push    eax
  1800 00000B91 52                      	push    edx
  1801 00000B92 6639DA                  	cmp     dx, bx
  1802 00000B95 7303                    	jae     short NoDiv
  1803 00000B97 66F7F3                  	div     bx
  1804                                  NoDiv:          
  1805 00000B9A 66AB                    	stosw
  1806 00000B9C 5A                      	pop     edx
  1807 00000B9D 58                      	pop     eax
  1808                                  	;inc	bx
  1809 00000B9E 43                      	inc	ebx
  1810 00000B9F E2EF                    	loop    PitchLoop
  1811                                  MakeVolume:     
  1812 00000BA1 66B90041                	mov     cx, 16640
  1813 00000BA5 89CB                    	mov     ebx, ecx
  1814                                  VolLoop:
  1815                                  	;dec	bx
  1816                                  	; 27/11/2023
  1817 00000BA7 4B                      	dec	ebx
  1818 00000BA8 88D8                    	mov     al, bl
  1819 00000BAA F6EF                    	imul    bh
  1820                                  	;mov	[VolTable+bx], ah
  1821 00000BAC 88A3[C2730000]          	mov     [VolTable+ebx], ah
  1822 00000BB2 E2F3                    	loop    VolLoop
  1823                                  
  1824 00000BB4 61                      	popad
  1825 00000BB5 C3                      	retn
  1826                                  
  1827                                  ;--------------------------------------------------------------------------
  1828                                  ; StopPlaying: ShutDown the Sound System.
  1829                                  ;--------------------------------------------------------------------------
  1830                                  
  1831                                  StopPlaying:
  1832                                  	; 19/06/2017
  1833                                  	; Stop Playing
  1834                                  	sys	_audio, 0700h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000BB6 BB00070000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000BBB B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000BC0 CD40                <1>  int 40h
  1835                                  	; Cancel callback service (for user)
  1836                                  	sys	_audio, 0900h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000BC2 BB00090000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000BC7 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000BCC CD40                <1>  int 40h
  1837                                  	; Deallocate Audio Buffer (for user)
  1838                                  	sys	_audio, 0A00h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000BCE BB000A0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000BD3 B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000BD8 CD40                <1>  int 40h
  1839                                  	; Disable Audio Device
  1840                                  	sys	_audio, 0C00h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000BDA BB000C0000          <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103                              <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105                              <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000BDF B820000000          <1>  mov eax, %1
   110                              <1> 
   111 00000BE4 CD40                <1>  int 40h
  1841                                  
  1842 00000BE6 C3                      	retn
  1843                                  
  1844                                  ;=============================================================================
  1845                                  ; 
  1846                                  ;=============================================================================
  1847                                  
  1848                                  ;dword2str:
  1849                                  ;	; 13/11/2016 - Erdogan Tan 
  1850                                  ;	; eax = dword value
  1851                                  ;	;
  1852                                  ;	call	dwordtohex
  1853                                  ;	mov	[dword_str], edx
  1854                                  ;	mov	[dword_str+4], eax
  1855                                  ;	mov	si, dword_str
  1856                                  ;	retn
  1857                                  
  1858                                  	; 05/03/2017 (TRDOS 386)
  1859                                  	; trdos386.s (unix386.s) - 10/05/2015
  1860                                  	; Convert binary number to hexadecimal string
  1861                                  
  1862                                  ;bytetohex:
  1863                                  ;	; INPUT ->
  1864                                  ;	; 	AL = byte (binary number)
  1865                                  ;	; OUTPUT ->
  1866                                  ;	;	AX = hexadecimal string
  1867                                  ;	;
  1868                                  ;	push	ebx
  1869                                  ;	movzx	ebx, al
  1870                                  ;	shr	bl, 4
  1871                                  ;	mov	bl, [ebx+hex_chars] 	 	
  1872                                  ;	xchg	bl, al
  1873                                  ;	and	bl, 0Fh
  1874                                  ;	mov	ah, [ebx+hex_chars] 
  1875                                  ;	pop	ebx	
  1876                                  ;	retn
  1877                                  
  1878                                  ;wordtohex:
  1879                                  ;	; INPUT ->
  1880                                  ;	; 	AX = word (binary number)
  1881                                  ;	; OUTPUT ->
  1882                                  ;	;	EAX = hexadecimal string
  1883                                  ;	;
  1884                                  ;	push	ebx
  1885                                  ;	xor	ebx, ebx
  1886                                  ;	xchg	ah, al
  1887                                  ;	push	eax
  1888                                  ;	mov	bl, ah
  1889                                  ;	shr	bl, 4
  1890                                  ;	mov	al, [ebx+hex_chars] 	 	
  1891                                  ;	mov	bl, ah
  1892                                  ;	and	bl, 0Fh
  1893                                  ;	mov	ah, [ebx+hex_chars]
  1894                                  ;	shl	eax, 16
  1895                                  ;	pop	eax
  1896                                  ;	pop	ebx
  1897                                  ;	jmp	short bytetohex
  1898                                  
  1899                                  ;dwordtohex:
  1900                                  ;	; INPUT ->
  1901                                  ;	; 	EAX = dword (binary number)
  1902                                  ;	; OUTPUT ->
  1903                                  ;	;	EDX:EAX = hexadecimal string
  1904                                  ;	;
  1905                                  ;	push	eax
  1906                                  ;	shr	eax, 16
  1907                                  ;	call	wordtohex
  1908                                  ;	mov	edx, eax
  1909                                  ;	pop	eax
  1910                                  ;	call	wordtohex
  1911                                  ;	retn
  1912                                  
  1913                                  	; 24/06/2017
  1914                                  	; 19/06/2017
  1915                                  	; 05/03/2017 (TRDOS 386)
  1916                                  	; 13/11/2016 - Erdogan Tan
  1917                                  write_audio_dev_info:
  1918                                  	; BUS/DEV/FN
  1919                                  	;	00000000BBBBBBBBDDDDDFFF00000000
  1920                                  	; DEV/VENDOR
  1921                                  	;	DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV
  1922                                  
  1923 00000BE7 8B35[B4520000]          	mov	esi, [dev_vendor]
  1924                                  	;mov	ax, si
  1925                                  	; 27/11/2023
  1926                                  	;movzx	ebx, al
  1927 00000BED 89F3                    	mov	ebx, esi
  1928 00000BEF 88DA                    	mov	dl, bl
  1929                                  	;and	bl, 0Fh
  1930 00000BF1 83E30F                  	and	ebx, 0Fh
  1931 00000BF4 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1932 00000BFA A2[3F520000]            	mov	[msgVendorId+3], al
  1933 00000BFF 88D3                    	mov	bl, dl
  1934 00000C01 C0EB04                  	shr	bl, 4
  1935 00000C04 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1936 00000C0A A2[3E520000]            	mov	[msgVendorId+2], al
  1937 00000C0F 88E3                    	mov	bl, ah
  1938 00000C11 88DA                    	mov	dl, bl
  1939 00000C13 80E30F                  	and	bl, 0Fh
  1940 00000C16 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1941 00000C1C A2[3D520000]            	mov	[msgVendorId+1], al
  1942 00000C21 88D3                    	mov	bl, dl
  1943 00000C23 C0EB04                  	shr	bl, 4
  1944 00000C26 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1945 00000C2C A2[3C520000]            	mov	[msgVendorId], al
  1946 00000C31 C1EE10                  	shr	esi, 16
  1947                                  	;mov	ax, si
  1948                                  	; 27/11/2023
  1949 00000C34 89F0                    	mov	eax, esi
  1950 00000C36 88C3                    	mov	bl, al
  1951 00000C38 88DA                    	mov	dl, bl
  1952 00000C3A 80E30F                  	and	bl, 0Fh
  1953 00000C3D 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1954 00000C43 A2[50520000]            	mov	[msgDevId+3], al
  1955 00000C48 88D3                    	mov	bl, dl
  1956 00000C4A C0EB04                  	shr	bl, 4
  1957 00000C4D 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1958 00000C53 A2[4F520000]            	mov	[msgDevId+2], al
  1959 00000C58 88E3                    	mov	bl, ah
  1960 00000C5A 88DA                    	mov	dl, bl
  1961 00000C5C 80E30F                  	and	bl, 0Fh
  1962 00000C5F 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1963 00000C65 A2[4E520000]            	mov	[msgDevId+1], al
  1964 00000C6A 88D3                    	mov	bl, dl
  1965 00000C6C C0EB04                  	shr	bl, 4
  1966 00000C6F 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1967 00000C75 A2[4D520000]            	mov	[msgDevId], al
  1968                                  
  1969 00000C7A 8B35[B8520000]          	mov	esi, [bus_dev_fn]
  1970 00000C80 C1EE08                  	shr	esi, 8
  1971 00000C83 6689F0                  	mov	ax, si
  1972 00000C86 88C3                    	mov	bl, al
  1973 00000C88 88DA                    	mov	dl, bl
  1974 00000C8A 80E307                  	and	bl, 7 ; bit 0,1,2
  1975 00000C8D 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1976 00000C93 A2[74520000]            	mov	[msgFncNo+1], al
  1977 00000C98 88D3                    	mov	bl, dl
  1978 00000C9A C0EB03                  	shr	bl, 3
  1979 00000C9D 88DA                    	mov	dl, bl
  1980 00000C9F 80E30F                  	and	bl, 0Fh
  1981 00000CA2 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1982 00000CA8 A2[66520000]            	mov	[msgDevNo+1], al
  1983 00000CAD 88D3                    	mov	bl, dl
  1984 00000CAF C0EB04                  	shr	bl, 4
  1985 00000CB2 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1986 00000CB8 A2[65520000]            	mov	[msgDevNo], al
  1987 00000CBD 88E3                    	mov	bl, ah
  1988 00000CBF 88DA                    	mov	dl, bl
  1989 00000CC1 80E30F                  	and	bl, 0Fh
  1990 00000CC4 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1991 00000CCA A2[5A520000]            	mov	[msgBusNo+1], al
  1992 00000CCF 88D3                    	mov	bl, dl
  1993 00000CD1 C0EB04                  	shr	bl, 4
  1994 00000CD4 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  1995 00000CDA A2[59520000]            	mov	[msgBusNo], al
  1996                                  
  1997                                  	; 24/06/2017
  1998 00000CDF 66A1[C0520000]          	mov	ax, [ac97_NamBar]
  1999 00000CE5 88C3                    	mov	bl, al
  2000 00000CE7 88DA                    	mov	dl, bl
  2001 00000CE9 80E30F                  	and	bl, 0Fh
  2002 00000CEC 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2003 00000CF2 A2[83520000]            	mov	[msgNamBar+3], al
  2004 00000CF7 88D3                    	mov	bl, dl
  2005 00000CF9 C0EB04                  	shr	bl, 4
  2006 00000CFC 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2007 00000D02 A2[82520000]            	mov	[msgNamBar+2], al
  2008 00000D07 88E3                    	mov	bl, ah
  2009 00000D09 88DA                    	mov	dl, bl
  2010 00000D0B 80E30F                  	and	bl, 0Fh
  2011 00000D0E 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2012 00000D14 A2[81520000]            	mov	[msgNamBar+1], al
  2013 00000D19 88D3                    	mov	bl, dl
  2014 00000D1B C0EB04                  	shr	bl, 4
  2015 00000D1E 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2016 00000D24 A2[80520000]            	mov	[msgNamBar], al
  2017                                  
  2018 00000D29 66A1[C2520000]          	mov	ax, [ac97_NabmBar]
  2019 00000D2F 88C3                    	mov	bl, al
  2020 00000D31 88DA                    	mov	dl, bl
  2021 00000D33 80E30F                  	and	bl, 0Fh
  2022 00000D36 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2023 00000D3C A2[93520000]            	mov	[msgNabmBar+3], al
  2024 00000D41 88D3                    	mov	bl, dl
  2025 00000D43 C0EB04                  	shr	bl, 4
  2026 00000D46 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2027 00000D4C A2[92520000]            	mov	[msgNabmBar+2], al
  2028 00000D51 88E3                    	mov	bl, ah
  2029 00000D53 88DA                    	mov	dl, bl
  2030 00000D55 80E30F                  	and	bl, 0Fh
  2031 00000D58 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2032 00000D5E A2[91520000]            	mov	[msgNabmBar+1], al
  2033 00000D63 88D3                    	mov	bl, dl
  2034 00000D65 C0EB04                  	shr	bl, 4
  2035 00000D68 8A83[FA510000]          	mov	al, [ebx+hex_chars]
  2036 00000D6E A2[90520000]            	mov	[msgNabmBar], al
  2037                                  
  2038                                  	; 24/11/2016
  2039 00000D73 30E4                    	xor	ah, ah
  2040 00000D75 A0[C4520000]            	mov	al, [ac97_int_ln_reg]
  2041 00000D7A B10A                    	mov	cl, 10
  2042 00000D7C F6F1                    	div	cl
  2043 00000D7E 660105[9C520000]        	add	[msgIRQ], ax
  2044 00000D85 20C0                    	and	al, al
  2045 00000D87 750D                    	jnz	short _w_ac97imsg_ ; 19/06/2017
  2046 00000D89 A0[9D520000]            	mov	al, [msgIRQ+1]
  2047 00000D8E B420                    	mov	ah, ' '
  2048 00000D90 66A3[9C520000]          	mov	[msgIRQ], ax
  2049                                  _w_ac97imsg_:
  2050                                  	; EBX = Message address
  2051                                  	; ECX = Max. message length (or stop on ZERO character)
  2052                                  	;	(1 to 255)
  2053                                  	; DL  = Message color (07h = light gray, 0Fh = white) 
  2054                                       	sys 	_msg, msgAC97Info, 255, 07h
    96                              <1> 
    97                              <1> 
    98                              <1> 
    99                              <1> 
   100                              <1>  %if %0 >= 2
   101 00000D96 BB[0B520000]        <1>  mov ebx, %2
   102                              <1>  %if %0 >= 3
   103 00000D9B B9FF000000          <1>  mov ecx, %3
   104                              <1>  %if %0 = 4
   105 00000DA0 BA07000000          <1>  mov edx, %4
   106                              <1>  %endif
   107                              <1>  %endif
   108                              <1>  %endif
   109 00000DA5 B823000000          <1>  mov eax, %1
   110                              <1> 
   111 00000DAA CD40                <1>  int 40h
  2055 00000DAC C3                              retn
  2056                                  
  2057                                  ;=============================================================================
  2058                                  ;	gfx.asm - draw scopes in VGA 640x480x16 mode      
  2059                                  ;=============================================================================
  2060                                  
  2061                                  ; EX1A.ASM (21/6/1994, Carlos Hasan; MSDOS, 'RUNME.EXE', 'TNYPL211')
  2062                                  
  2063                                  ;-----------------------------------------------------------------------------
  2064                                  ; setgraphmode - setup the VGA 640x480x16 graphics mode
  2065                                  ;-----------------------------------------------------------------------------
  2066                                  	; 22/10/2017
  2067                                  setgraphmode:
  2068                                  	;pushad
  2069 00000DAD 66B81200                	mov	ax,0012h
  2070                                  	;int	10h
  2071 00000DB1 CD31                    	int 	31h
  2072 00000DB3 66BAC003                	mov	dx,3C0h
  2073 00000DB7 30C0                    	xor	al,al
  2074                                  setgraphmodel0:
  2075                                  	;out	dx,al
  2076 00000DB9 B401                    	mov	ah,1 ; outb
  2077 00000DBB CD34                    	int	34h
  2078                                  	;out	dx,al
  2079                                  	;mov	ah,1
  2080 00000DBD CD34                    	int	34h
  2081 00000DBF FEC0                    	inc	al
  2082 00000DC1 3C10                    	cmp	al,10h
  2083 00000DC3 72F4                    	jb	short setgraphmodel0
  2084 00000DC5 B020                    	mov	al,20h
  2085                                  	;out	dx,al
  2086                                  	;mov	ah,1
  2087 00000DC7 CD34                    	int	34h
  2088                                  	;popad
  2089 00000DC9 C3                      	retn
  2090                                  
  2091                                  ;-----------------------------------------------------------------------------
  2092                                  ; settextmode - restore the VGA 80x25x16 text mode
  2093                                  ;-----------------------------------------------------------------------------
  2094                                  	; 22/10/2017
  2095                                  settextmode:
  2096                                  	;pushad
  2097 00000DCA 66B80300                	mov	ax, 0003h
  2098                                  	;int	10h
  2099 00000DCE CD31                    	int	31h
  2100                                  	;popad
  2101 00000DD0 C3                      	retn
  2102                                  
  2103                                  ;-----------------------------------------------------------------------------
  2104                                  ; drawscopes - draw the track voices sample scopes
  2105                                  ; In:
  2106                                  ;  ESI = (current) sample buffer
  2107                                  ;-----------------------------------------------------------------------------
  2108                                  	; 27/11/2023
  2109                                  	; 29/10/2017
  2110                                  	; 28/10/2017
  2111                                  	; (ESI = Current DMA buffer offset)
  2112                                  	; 27/10/2017
  2113                                  	; 26/10/2017
  2114                                  	; 23/10/2017
  2115                                  drawscopes:
  2116                                  	;pushad
  2117                                    	;mov	esi, g_buff
  2118                                  	;mov	esi, edx
  2119 00000DD1 31C9                    	xor     ecx, ecx	
  2120 00000DD3 31D2                    	xor     edx, edx
  2121 00000DD5 31FF                    	xor	edi, edi
  2122                                  drawscope0:
  2123 00000DD7 66AD                    	lodsw
  2124 00000DD9 80F480                  	xor	ah, 80h
  2125 00000DDC 0FB6DC                  	movzx	ebx, ah  ; Left Channel
  2126                                  	;shl	bx, 1
  2127                                  	; 27/11/2023
  2128 00000DDF D1E3                    	shl	ebx, 1
  2129 00000DE1 668B83[10D60000]        	mov	ax, [RowOfs+ebx]
  2130 00000DE8 668987[10D80000]        	mov	[NewScope_L+edi], ax
  2131 00000DEF 30FF                    	xor	bh, bh
  2132 00000DF1 66AD                    	lodsw
  2133 00000DF3 80F480                  	xor	ah, 80h
  2134 00000DF6 88E3                    	mov	bl, ah	; Right Channel
  2135                                  	;shl	bx, 1
  2136                                  	; 27/11/2023
  2137 00000DF8 D1E3                    	shl	ebx, 1
  2138 00000DFA 668B83[10D60000]        	mov	ax, [RowOfs+ebx]
  2139 00000E01 668987[10DA0000]        	mov	[NewScope_R+edi], ax
  2140                                  	;add	di, 2
  2141                                  	; 27/11/2023
  2142 00000E08 47                      	inc	edi
  2143 00000E09 47                      	inc	edi
  2144 00000E0A FEC1                    	inc	cl
  2145 00000E0C 75C9                    	jnz	short drawscope0	
  2146                                  
  2147 00000E0E 66BAC403                        mov	dx, 3C4h
  2148                                          ;mov	ax, 0802h
  2149                                          ;out	dx, ax
  2150 00000E12 66BB0208                        mov	bx, 0802h
  2151 00000E16 B403                    	mov	ah, 3 ; outw
  2152 00000E18 CD34                    	int	34h
  2153                                  	;mov	dx, 3CEh
  2154                                  	; 27/11/2023 
  2155 00000E1A B2CE                            mov	dl, 0CEh
  2156 00000E1C B008                    	mov	al, 08h
  2157                                         ;out	dx, al
  2158 00000E1E B401                            mov	ah, 1 ; outb
  2159 00000E20 CD34                    	int	34h
  2160                                  	;inc	dx
  2161                                  	; 27/11/2023
  2162 00000E22 42                      	inc	edx
  2163                                  
  2164                                  	; 26/10/2017
  2165 00000E23 31F6                            xor	esi, esi
  2166                                         ;xor	edi, edi
  2167 00000E25 BB45060A00                      mov     ebx, 0A0645h
  2168                                  drawscopel4:
  2169 00000E2A B080                            mov     al, 80h
  2170                                  drawscopel2:
  2171 00000E2C 50                              push    eax ; *
  2172 00000E2D 52                              push    edx ; **
  2173                                  	;out	dx, al
  2174 00000E2E B401                    	mov	ah, 1 ; outb
  2175 00000E30 CD34                    	int	34h
  2176                                  
  2177 00000E32 B4FF                            mov	ah, 0FFh
  2178                                          ;mov	ecx, 32
  2179 00000E34 B120                    	mov	cl, 32
  2180 00000E36 28C0                    	sub     al, al
  2181                                  drawscopel3:
  2182                                  	; 23/10/2017
  2183 00000E38 668B96[10DC0000]                mov	dx, [OldScope_L+esi]
  2184 00000E3F 663B96[10D80000]                cmp	dx, [NewScope_L+esi]
  2185 00000E46 7414                            je	short drawscopef3
  2186 00000E48 88041A                          mov	[edx+ebx], al ; L
  2187 00000E4B 668B96[10D80000]                mov     dx, [NewScope_L+esi]
  2188 00000E52 88241A                  	mov	[edx+ebx], ah ; L
  2189 00000E55 668996[10DC0000]                mov     [OldScope_L+esi], dx
  2190                                  drawscopef3:
  2191                                  	; 27/10/2017
  2192 00000E5C 668B96[10DE0000]                mov	dx, [OldScope_R+esi]
  2193 00000E63 663B96[10DA0000]                cmp	dx, [NewScope_R+esi]
  2194 00000E6A 7416                            je	short drawscopef4
  2195 00000E6C 88441A26                	mov	[edx+ebx+38], al ; R
  2196 00000E70 668B96[10DA0000]                mov     dx, [NewScope_R+esi]
  2197 00000E77 88641A26                        mov	[edx+ebx+38], ah ; R
  2198 00000E7B 668996[10DE0000]                mov     [OldScope_R+esi], dx
  2199                                  drawscopef4:
  2200 00000E82 83C610                  	add	esi, 2*8
  2201 00000E85 43                      	inc	ebx
  2202 00000E86 E2B0                    	loop    drawscopel3
  2203                                  
  2204 00000E88 5A                              pop     edx ; **
  2205 00000E89 58                              pop     eax ; *
  2206 00000E8A 81EEFE010000            	sub	esi, 2*256-2
  2207 00000E90 83EB20                  	sub	ebx, 32
  2208 00000E93 D0E8                            shr     al, 1
  2209 00000E95 7595                            jnz	short drawscopel2
  2210                                  	;popad
  2211 00000E97 C3                              retn
  2212                                  
  2213                                  ;=============================================================================
  2214                                  ;	Load IFF/ILBM files for VGA 640x480x16 graphics mode       
  2215                                  ;=============================================================================
  2216                                  
  2217                                  ; EX1B.ASM (21/6/1994, Carlos Hasan; MSDOS, 'RUNME.EXE', 'TNYPL211')
  2218                                  
  2219                                  ; 21/10/2017 (TRDOS 386, 'tmodplay.s', Erdogan Tan, NASM syntax)
  2220                                  
  2221                                  ;-----------------------------------------------------------------------------
  2222                                  ; EQUATES AND STRUCTURES
  2223                                  ;-----------------------------------------------------------------------------
  2224                                  
  2225                                  ID_FORM equ 4D524F46h		; IFF/ILBM chunk IDs
  2226                                  ID_ILBM equ 4D424C49h
  2227                                  ID_BMHD equ 44484D42h
  2228                                  ID_CMAP equ 50414D43h
  2229                                  ID_BODY equ 59444F42h
  2230                                  
  2231                                  struc Form			; IFF/ILBM header file format
  2232 00000000 ????????                  .ID:		resd 1
  2233 00000004 ????????                  .Length:	resd 1
  2234 00000008 ????????                  .Type:	resd 1
  2235                                    .size:
  2236                                  endstruc
  2237                                  
  2238                                  struc Chunk			; IFF/ILBM header chunk format
  2239 00000000 ????????                  .ID:		resd 1
  2240 00000004 ????????                  .Length:	resd 1
  2241                                    .size:	
  2242                                  endstruc
  2243                                  
  2244                                  struc BMHD			; IFF/ILBM BMHD chunk format
  2245 00000000 ????                      .Width: 	resw 1
  2246 00000002 ????                      .Height:	resw 1
  2247 00000004 ????                      .PosX:	resw 1
  2248 00000006 ????                      .PosY:	resw 1
  2249 00000008 ??                        .Planes:	resb 1
  2250 00000009 ??                        .Masking:	resb 1
  2251 0000000A ??                        .Compression:	resb 1
  2252 0000000B ??                        .Pad:		resb 1
  2253 0000000C ????                      .Transparent:	resw 1
  2254 0000000E ??                        .AspectX	resb 1
  2255 0000000F ??                        .AspectY:	resb 1
  2256 00000010 ????                      .PageWidth:	resw 1
  2257 00000012 ????                      .PageHeight:	resw 1
  2258                                    .size:	
  2259                                  endstruc
  2260                                  
  2261                                  struc CMAP			; IFF/ILBM CMAP chunk format
  2262 00000000 <res 300h>                .Colors:	resb 768
  2263                                    .size:	
  2264                                  endstruc
  2265                                  
  2266                                  ;LOGO_ADDRESS	equ 100000h	; virtual address at the end of the 1st 1MB
  2267                                  
  2268                                  ;------------------------------------------------------------------------------
  2269                                  ; bswap - macro to reverse the byte order of a 32-bit register, converting
  2270                                  ;         a value in little/big endian form to big/little endian form.
  2271                                  ;------------------------------------------------------------------------------
  2272                                  %macro	bswap   1
  2273                                          xchg    al, ah
  2274                                          rol     eax, 16
  2275                                          xchg    al, ah
  2276                                  %endmacro
  2277                                  
  2278                                  ;------------------------------------------------------------------------------
  2279                                  ; putlbm - draw the IFF/ILBM picture on VGA 640x480x16 graphics mode
  2280                                  ; In:
  2281                                  ;  ESI = IFF/ILBM image file address
  2282                                  ;------------------------------------------------------------------------------
  2283                                  putlbm:
  2284 00000E98 60                              pushad
  2285                                  
  2286                                  ; check if this is a valid IFF/ILBM Deluxe Paint file
  2287                                  
  2288 00000E99 813E464F524D                    cmp     dword [esi+Form.ID], ID_FORM
  2289 00000E9F 7551                            jne     short putlbmd0
  2290 00000EA1 817E08494C424D                  cmp     dword [esi+Form.Type], ID_ILBM
  2291 00000EA8 7548                            jne     short putlbmd0
  2292                                  
  2293                                  ; get the IFF/ILBM file length in bytes
  2294                                  
  2295 00000EAA 8B4604                          mov     eax, [esi+Form.Length]
  2296                                          bswap   eax
  2273 00000EAD 86C4                <1>  xchg al, ah
  2274 00000EAF C1C010              <1>  rol eax, 16
  2275 00000EB2 86C4                <1>  xchg al, ah
  2297 00000EB4 89C1                            mov     ecx, eax
  2298                                  
  2299                                  ; decrease the file length and updates the file pointer
  2300                                  
  2301 00000EB6 83E904                          sub     ecx, 4
  2302 00000EB9 83C60C                          add     esi, Form.size
  2303                                  
  2304                                  ; IFF/ILBM main parser body loop
  2305                                  
  2306                                  putlbml0:
  2307 00000EBC 85C9                            test    ecx, ecx
  2308 00000EBE 7E64                            jle     short putlbmd1
  2309                                  
  2310                                  ; get the next chunk ID and length in bytes
  2311                                  
  2312 00000EC0 8B1E                            mov     ebx, [esi+Chunk.ID]
  2313 00000EC2 8B4604                          mov     eax, [esi+Chunk.Length]
  2314                                          bswap   eax
  2273 00000EC5 86C4                <1>  xchg al, ah
  2274 00000EC7 C1C010              <1>  rol eax, 16
  2275 00000ECA 86C4                <1>  xchg al, ah
  2315 00000ECC 93                              xchg    ebx, eax
  2316 00000ECD 83C608                          add     esi, Chunk.size
  2317                                  
  2318                                  ; word align the chunk length and decrease the file length counter
  2319                                  
  2320 00000ED0 43                              inc     ebx
  2321 00000ED1 80E3FE                          and     bl, 0FEh ; ~1
  2322 00000ED4 83E908                          sub     ecx, Chunk.size
  2323 00000ED7 29D9                            sub     ecx, ebx
  2324                                  
  2325                                  ; check for the BMHD/CMAP/BODY chunk headers
  2326                                  
  2327 00000ED9 3D424D4844                      cmp     eax, ID_BMHD
  2328 00000EDE 7415                            je      short putlbmf0
  2329 00000EE0 3D434D4150                      cmp     eax, ID_CMAP
  2330 00000EE5 7440                            je      short putlbmf1
  2331 00000EE7 3D424F4459                      cmp     eax, ID_BODY
  2332 00000EEC 7454                            je      short putlbmf2
  2333                                  
  2334                                  ; advance to the next IFF/ILBM chunk structure
  2335                                  
  2336                                  putlbmc0:
  2337 00000EEE 01DE                            add     esi, ebx
  2338 00000EF0 EBCA                            jmp     short putlbml0
  2339                                  
  2340                                  putlbmd0:
  2341 00000EF2 F9                              stc
  2342 00000EF3 61                              popad
  2343 00000EF4 C3                              retn
  2344                                  
  2345                                  ; process the BMHD bitmap header chunk
  2346                                  
  2347                                  putlbmf0:
  2348 00000EF5 807E0804                        cmp     byte [esi+BMHD.Planes], 4
  2349 00000EF9 75F7                            jne     short putlbmd0
  2350 00000EFB 807E0A01                        cmp     byte [esi+BMHD.Compression], 1
  2351 00000EFF 75F1                            jne     short putlbmd0
  2352 00000F01 807E0B00                        cmp     byte [esi+BMHD.Pad], 0
  2353 00000F05 75EB                            jne     short putlbmd0
  2354 00000F07 0FB706                          movzx   eax, word [esi+BMHD.Width]
  2355 00000F0A 86C4                            xchg    al, ah
  2356 00000F0C 83C007                          add     eax, 7
  2357 00000F0F C1E803                          shr     eax, 3
  2358 00000F12 A3[AC520000]                    mov     [picture.width], eax
  2359 00000F17 0FB74602                        movzx   eax, word [esi+BMHD.Height]
  2360 00000F1B 86C4                            xchg    al, ah
  2361 00000F1D A3[B0520000]                    mov     [picture.height], eax
  2362 00000F22 EBCA                            jmp     short putlbmc0
  2363                                  
  2364                                  putlbmd1:
  2365 00000F24 F8                              clc
  2366 00000F25 61                              popad
  2367 00000F26 C3                              retn
  2368                                  
  2369                                  ; process the CMAP colormap chunk
  2370                                  
  2371                                  putlbmf1:
  2372 00000F27 66BAC803                        mov     dx, 3C8h
  2373 00000F2B 30C0                            xor     al, al
  2374                                          ;out	dx, al
  2375 00000F2D B401                    	mov	ah, 1 ; outb
  2376 00000F2F CD34                    	int	34h
  2377                                          ;inc	dx
  2378                                  	; 27/11/2023
  2379 00000F31 42                      	inc	edx
  2380                                  putlbml1:
  2381 00000F32 8A06                            mov     al, [esi]
  2382 00000F34 C0E802                          shr     al, 2
  2383                                          ;out	dx, al
  2384                                  	;mov	ah, 1 ; outb
  2385 00000F37 CD34                    	int	34h ; IOCTL interrupt (IN/OUT)
  2386 00000F39 46                              inc     esi
  2387 00000F3A 4B                              dec     ebx
  2388 00000F3B 7FF5                            jg      short putlbml1
  2389 00000F3D E97AFFFFFF                      jmp     putlbml0
  2390                                  
  2391                                  ; process the BODY bitmap body chunk
  2392                                  
  2393                                  putlbmf2:
  2394 00000F42 60                              pushad
  2395 00000F43 BF00000A00                      mov     edi, 0A0000h
  2396                                          ;cld
  2397 00000F48 66BACE03                        mov     dx, 3CEh
  2398                                          ;mov	ax, 0FF08h
  2399                                          ;out	dx, ax
  2400 00000F4C 66BB08FF                	mov	bx, 0FF08h
  2401 00000F50 B403                    	mov	ah, 3 ; outw
  2402 00000F52 CD34                    	int	34h ; IOCTL interrupt (IN/OUT)
  2403                                  	;mov	dx, 3C4h
  2404                                  	; 27/11/2023
  2405 00000F54 B2C4                    	mov	dl, 0C4h
  2406 00000F56 B002                            mov     al, 02h
  2407                                          ;out	dx, al
  2408 00000F58 B401                    	mov	ah, 1 ; outb
  2409 00000F5A CD34                    	int	34h ; IOCTL interrupt (IN/OUT)
  2410                                  	;inc	dx
  2411                                  	; 27/11/2023
  2412 00000F5C 42                      	inc	edx
  2413 00000F5D 8B0D[B0520000]                  mov     ecx, [picture.height]
  2414                                  putlbml2:
  2415 00000F63 51                              push    ecx
  2416 00000F64 B011                            mov     al, 11h
  2417                                  putlbml3:
  2418 00000F66 50                              push    eax
  2419 00000F67 57                              push    edi
  2420                                          ;out	dx, al
  2421 00000F68 B401                    	mov	ah, 1 ; outb
  2422 00000F6A CD34                    	int	34h ; IOCTL interrupt (IN/OUT)
  2423 00000F6C 8B1D[AC520000]                  mov     ebx, [picture.width]
  2424                                  putlbml4:
  2425 00000F72 AC                              lodsb
  2426 00000F73 84C0                            test    al, al
  2427 00000F75 7C0A                            jl      short putlbmf3
  2428 00000F77 0FB6C8                          movzx   ecx, al
  2429 00000F7A 41                              inc     ecx
  2430 00000F7B 29CB                            sub     ebx, ecx
  2431 00000F7D F3A4                            rep     movsb
  2432 00000F7F EB0B                            jmp     short putlbmc4
  2433                                  putlbmf3:
  2434 00000F81 F6D8                            neg     al
  2435 00000F83 0FB6C8                          movzx   ecx, al
  2436 00000F86 41                              inc     ecx
  2437 00000F87 29CB                            sub     ebx, ecx
  2438 00000F89 AC                              lodsb
  2439 00000F8A F3AA                            rep     stosb
  2440                                  putlbmc4:
  2441 00000F8C 85DB                            test    ebx, ebx
  2442 00000F8E 7FE2                            jg      short putlbml4
  2443 00000F90 5F                              pop     edi
  2444 00000F91 58                              pop     eax
  2445 00000F92 00C0                            add     al, al
  2446 00000F94 73D0                            jnc     short putlbml3
  2447 00000F96 83C750                          add     edi, 80
  2448 00000F99 59                              pop     ecx
  2449 00000F9A E2C7                            loop    putlbml2
  2450 00000F9C 61                      	popad
  2451 00000F9D E94CFFFFFF                      jmp	putlbmc0
  2452                                  
  2453                                  ; EX1.C (Carlos Hasan, 21/06/1994)
  2454                                  ;------------------------------------------------------------------------------
  2455                                  ; loadlbm - load the IFF/ILBM image file ("LOGO.LBM") at memory
  2456                                  ;  ESI = IFF/ILBM image file address
  2457                                  ;------------------------------------------------------------------------------
  2458                                  
  2459                                  ;if ((Logo = loadlbm("LOGO.LBM")) == NULL) {
  2460                                  ;       printf("Error loading the IFF/ILBM logo picture\n");
  2461                                  ;       MODStopModule();
  2462                                  ;       MODFreeModule(Song);
  2463                                  ;       return;
  2464                                  ;   }
  2465                                  ;   setgraphmode();
  2466                                  ;   putlbm(Logo);
  2467                                  ;   while (!kbhit())
  2468                                  ;       drawscopes(Song->NumTracks);
  2469                                  ;   settextmode();
  2470                                  ;   free(Logo);
  2471                                  ;   MODStopModule();
  2472                                  ;   MODFreeModule(Song);
  2473                                  
  2474                                  ;loadlbm:
  2475                                  ;	; ebx = ASCIIZ file name address
  2476                                  ;	; ecx = open mode (0 = open for read)	
  2477                                  ;	sys	_open, LOGO_FILE_NAME, 0 ; open for reading
  2478                                  ;	jc	short loadlbm_retn
  2479                                  ;
  2480                                  ;	mov     [LBM_FileHandle], eax
  2481                                  ;
  2482                                  ;	; get file size by moving file pointer to the end of file
  2483                                  ;	; ebx = file handle/number
  2484                                  ;	; ecx : offset = 0
  2485                                  ;	; edx : switch = 2 (move fp to end of file + offset)
  2486                                  ;	sys	_seek, eax, 0, 2
  2487                                  ;	jc	short loadlbm_cf
  2488                                  ;
  2489                                  ;	mov	[LBM_FileSize], eax
  2490                                  ;
  2491                                  ;	; move file pointer to the beginning of the file
  2492                                  ;	; ecx = 0
  2493                                  ;	; edx = 0
  2494                                  ;	;xor	ecx, ecx
  2495                                  ; 	xor	dl, dl
  2496                                  ;	; ebx = [LBM_FileHandle]
  2497                                  ;	sys	_seek
  2498                                  ;	;jc	short loadlbm_cf
  2499                                  ;
  2500                                  ;	; ebx = File handle
  2501                                  ;	; ecx = Buffer address
  2502                                  ;	; edx = Byte count
  2503                                  ;	;sys	_read, [LBM_FileHandle], LOGO_ADDRESS, [LBM_FileSize]
  2504                                  ;	mov	ecx, LOGO_ADDRESS
  2505                                  ;	mov	edx, [LBM_FileSize]
  2506                                  ;	sys	_read
  2507                                  ;	jc	short loadlbm_cf
  2508                                  ;
  2509                                  ;	cmp	eax, edx  ; read count = file size ?
  2510                                  ;	;jb	short loadlbm_cf		 
  2511                                  ;loadlbm_cf:
  2512                                  ;	pushf
  2513                                  ;	sys	_close, [LBM_FileHandle]	
  2514                                  ;	popf
  2515                                  ;loadlbm_retn:
  2516                                  ;	retn	
  2517                                  ;
  2518                                  ;LOGO_FILE_NAME:
  2519                                  ;	db	"LOGO.LBM", 0
  2520                                  
  2521                                  LOGO_ERROR_MSG:
  2522 00000FA2 4572726F72206C6F61-     	db	"Error loading the IFF/ILBM logo picture !", 0Dh, 0Ah, 0 
  2522 00000FAB 64696E672074686520-
  2522 00000FB4 4946462F494C424D20-
  2522 00000FBD 6C6F676F2070696374-
  2522 00000FC6 75726520210D0A00   
  2523                                  
  2524                                  align 2
  2525                                  ; 22/10/2017
  2526                                  LOGO_ADDRESS:
  2527                                  ;incbin "LOGO.LBM"	  	 
  2528                                  ; 27/10/2017
  2529 00000FCE <bin 3FF0h>             incbin "TINYPLAY.LBM"
  2530                                  
  2531                                  ;=============================================================================
  2532                                  ;               preinitialized data
  2533                                  ;=============================================================================
  2534                                  
  2535                                  ;=============================================================================
  2536                                  ; Protracker effects stuff
  2537                                  ;=============================================================================
  2538                                  
  2539                                  ;-----------------------------------------------------------------------------
  2540                                  ; Effect jump tables
  2541                                  ;-----------------------------------------------------------------------------
  2542                                  
  2543 00004FBE 90<rep 2h>              align 4
  2544                                  
  2545                                  efxtable:
  2546 00004FC0 [A2070000]              	dd      efxarpeggio	; 0 - arpeggio
  2547 00004FC4 [D0040000]              	dd      efxnull		; 1 - porta up
  2548 00004FC8 [D0040000]              	dd      efxnull		; 2 - porta down
  2549 00004FCC [EE060000]              	dd      efxtoneporta	; 3 - tone porta
  2550 00004FD0 [FD060000]              	dd      efxvibrato	; 4 - vibrato
  2551 00004FD4 [D0040000]              	dd      efxnull		; 5 - tone+slide
  2552 00004FD8 [D0040000]              	dd      efxnull		; 6 - vibrato+slide
  2553 00004FDC [19080000]              	dd      efxtremolo	; 7 - tremolo
  2554 00004FE0 [D0040000]              	dd      efxnull		; 8 - unused
  2555 00004FE4 [25070000]              	dd      efxsampoffset	; 9 - sample offset
  2556 00004FE8 [D0040000]              	dd      efxnull		; A - volume slide
  2557 00004FEC [31070000]              	dd      efxpattjump	; B - pattern jump
  2558 00004FF0 [3F070000]              	dd      efxsetvolume	; C - set volume
  2559 00004FF4 [4D070000]              	dd      efxbreak	; D - break pattern
  2560 00004FF8 [D0040000]              	dd      efxnull		; E - extra effects
  2561 00004FFC [6C070000]              	dd      efxsetspeed	; F - set speed
  2562                                  
  2563                                  efxtable2:
  2564 00005000 [D1040000]              	dd      efxarpeggio2	; 0 - arpeggio
  2565 00005004 [F3040000]              	dd      efxportaup	; 1 - porta up
  2566 00005008 [19050000]              	dd      efxportadown	; 2 - porta down
  2567 0000500C [40050000]              	dd      efxtoneporta2	; 3 - tone porta
  2568 00005010 [79050000]              	dd      efxvibrato2	; 4 - vibrato
  2569 00005014 [D5050000]              	dd      efxtoneslide	; 5 - tone+slide
  2570 00005018 [E2050000]              	dd      efxvibslide	; 6 - vibrato+slide
  2571 0000501C [09060000]              	dd      efxtremolo2	; 7 - tremolo
  2572 00005020 [D0040000]              	dd      efxnull		; 8 - unused
  2573 00005024 [D0040000]              	dd      efxnull		; 9 - sample offset
  2574 00005028 [EC050000]              	dd      efxvolslide	; A - volume slide
  2575 0000502C [D0040000]              	dd      efxnull		; B - pattern jump
  2576 00005030 [D0040000]              	dd      efxnull		; C - set volume
  2577 00005034 [D0040000]              	dd      efxnull		; D - break pattern
  2578 00005038 [D0040000]              	dd      efxnull		; E - extra effects
  2579 0000503C [D0040000]              	dd      efxnull		; F - set speed
  2580                                  
  2581                                  ;-----------------------------------------------------------------------------
  2582                                  ; Amiga period table
  2583                                  ;-----------------------------------------------------------------------------
  2584                                  
  2585                                  ;PeriodTable0:	
  2586                                  ;	dw	0
  2587                                  PeriodTable:
  2588 00005040 600DA00CE80B400B98-     	dw	3424,3232,3048,2880,2712,2560,2416,2280,2152,2032,1920,1812
  2588 00005049 0A000A7009E8086808-
  2588 00005052 F00780071407       
  2589 00005058 B0065006F405A0054C-     	dw	1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,906
  2589 00005061 050005B80474043404-
  2589 0000506A F803C0038A03       
  2590 00005070 58032803FA02D002A6-     	dw	856,808,762,720,678,640,604,570,538,508,480,453
  2590 00005079 0280025C023A021A02-
  2590 00005082 FC01E001C501       
  2591 00005088 AC0194017D01680153-     	dw	428,404,381,360,339,320,302,285,269,254,240,226
  2591 00005091 0140012E011D010D01-
  2591 0000509A FE00F000E200       
  2592 000050A0 D600CA00BE00B400AA-     	dw	214,202,190,180,170,160,151,143,135,127,120,113
  2592 000050A9 00A00097008F008700-
  2592 000050B2 7F0078007100       
  2593 000050B8 6B0065005F005A0055-     	dw	107,101,95,90,85,80,75,71,67,63,60,56
  2593 000050C1 0050004B0047004300-
  2593 000050CA 3F003C003800       
  2594 000050D0 350032002F002D002A-     	dw	53,50,47,45,42,40,37,35,33,31,30,28
  2594 000050D9 002800250023002100-
  2594 000050E2 1F001E001C00       
  2595                                  
  2596                                  ;-----------------------------------------------------------------------------
  2597                                  ; Sinus wave table
  2598                                  ;-----------------------------------------------------------------------------
  2599                                  
  2600                                  SinTable:
  2601 000050E8 0019324A62788EA2B4-     	db	0,25,50,74,98,120,142,162,180,197,212,225
  2601 000050F1 C5D4E1             
  2602 000050F4 ECF4FAFEFFFEFAF4EC-     	db	236,244,250,254,255,254,250,244,236,225
  2602 000050FD E1                 
  2603 000050FE D4C5B4A28E78624A32-     	db	212,197,180,162,142,120,98,74,50,25
  2603 00005107 19                 
  2604                                  
  2605                                  ;=============================================================================
  2606                                  ;               PLAY.ASM - DATA
  2607                                  ;=============================================================================
  2608 00005108 00                      	db	0
  2609                                  msg_usage:
  2610 00005109 54696E79204D4F4420-     	db	'Tiny MOD Player for TRDOS 386 by Erdogan Tan. '
  2610 00005112 506C6179657220666F-
  2610 0000511B 72205452444F532033-
  2610 00005124 383620627920457264-
  2610 0000512D 6F67616E2054616E2E-
  2610 00005136 20                 
  2611                                  	;db	'October 2017.',10,13
  2612 00005137 4E6F76656D62657220-     	db	'November 2023.',10,13 ; 27/11/2023
  2612 00005140 323032332E0A0D     
  2613 00005147 75736167653A20746D-     	db	'usage: tmodplay filename.mod', 10,13,0
  2613 00005150 6F64706C6179206669-
  2613 00005159 6C656E616D652E6D6F-
  2613 00005162 640A0D00           
  2614 00005166 32392F31302F323031-     	db	'29/10/2017',10,13,0
  2614 0000516F 370A0D00           
  2615 00005173 32372F31312F323032-     	db	'27/11/2023',10,13,0
  2615 0000517C 330A0D00           
  2616                                  
  2617                                  Credits:
  2618 00005180 54696E79204D4F4420-     	db	'Tiny MOD Player v0.1b by Carlos Hasan. July 1993.'
  2618 00005189 506C61796572207630-
  2618 00005192 2E3162206279204361-
  2618 0000519B 726C6F732048617361-
  2618 000051A4 6E2E204A756C792031-
  2618 000051AD 3939332E           
  2619 000051B1 0A0D00                  	db	10,13,0
  2620                                  ErrorMesg:    
  2621 000051B4 4572726F72206C6F61-     	db 'Error loading Module file.',10,13,0
  2621 000051BD 64696E67204D6F6475-
  2621 000051C6 6C652066696C652E0A-
  2621 000051CF 0D00               
  2622                                  
  2623                                  ;MsgNotFound: db 'Sound Blaster not found or IRQ error.',10,13,0
  2624                                  ;MsgFound:    db 'Sound Blaster found at Address 2'
  2625                                  ;PortText:    db 'x0h, IRQ '
  2626                                  ;IrqText:     db 'x.',10,13,0
  2627                                  
  2628                                  trdos386_err_msg:
  2629 000051D1 5452444F5320333836-     		db 'TRDOS 386 System call error !', 10, 13,0
  2629 000051DA 2053797374656D2063-
  2629 000051E3 616C6C206572726F72-
  2629 000051EC 20210A0D00         
  2630                                  
  2631                                  ; 07/10/2017
  2632 000051F1 0A                      pattern_shift:	db 10
  2633                                  ;numtracks:	dw 4
  2634                                  ; 18/10/2017
  2635 000051F2 04000000                numtracks:	dd 4
  2636                                  
  2637                                  ;=============================================================================
  2638                                  ;               PLAYER.ASM - DATA
  2639                                  ;=============================================================================
  2640                                  
  2641                                  ;stmo:		db 1 ; stereo (2) or mono (1)  
  2642                                  ;bps:		db 8 ; bits per sample (8 or 16)
  2643                                  
  2644                                  ;19/10/2017
  2645 000051F6 02                      stmo:		db 2 ; stereo (2) or mono (1)  
  2646 000051F7 10                      bps:		db 16 ; bits per sample (8 or 16)
  2647                                  
  2648                                  Sample_Rate:
  2649 000051F8 2256                    MixSpeed:	dw 22050 ; Hz
  2650                                  		; 27/11/2023
  2651                                  		;dw 24000 ; Hz	
  2652                                  
  2653                                  ; 13/11/2016
  2654 000051FA 303132333435363738-     hex_chars:	db "0123456789ABCDEF", 0
  2654 00005203 3941424344454600   
  2655                                  ;
  2656                                  msgAC97Info:	
  2657 0000520B 0D0A                    		db 0Dh, 0Ah
  2658 0000520D 414339372041756469-     		db "AC97 Audio Controller & Codec Info", 0Dh, 0Ah 
  2658 00005216 6F20436F6E74726F6C-
  2658 0000521F 6C6572202620436F64-
  2658 00005228 656320496E666F0D0A 
  2659 00005231 56656E646F72204944-     		db "Vendor ID: "
  2659 0000523A 3A20               
  2660 0000523C 303030306820446576-     msgVendorId:	db "0000h Device ID: "
  2660 00005245 6963652049443A20   
  2661 0000524D 30303030680D0A          msgDevId:	db "0000h", 0Dh, 0Ah
  2662 00005254 4275733A20              		db "Bus: "
  2663 00005259 303068204465766963-     msgBusNo:	db "00h Device: "
  2663 00005262 653A20             
  2664 00005265 3030682046756E6374-     msgDevNo:	db "00h Function: "
  2664 0000526E 696F6E3A20         
  2665 00005273 303068                  msgFncNo	db "00h"
  2666 00005276 0D0A                    		db 0Dh, 0Ah
  2667 00005278 4E414D4241523A20        		db "NAMBAR: "
  2668 00005280 30303030682020          msgNamBar	db "0000h  "
  2669 00005287 4E41424D4241523A20      		db "NABMBAR: "
  2670 00005290 303030306820204952-     msgNabmBar	db "0000h  IRQ: "
  2670 00005299 513A20             
  2671 0000529C 3030                    msgIRQ:		dw 3030h
  2672 0000529E 0D0A00                  		db 0Dh, 0Ah, 0
  2673                                  ;
  2674                                  ;; 13/11/2016 - Erdogan Tan (Ref: KolibriOS, codec.inc)
  2675                                  ;codec_id:	   dd 0
  2676                                  ;codec_chip_id:	   dd 0
  2677                                  ;codec_vendor_ids: dw 0
  2678                                  ;codec_chip_ids:   dw 0
  2679                                  
  2680                                  ;dword_str:	dd 30303030h, 30303030h
  2681                                  ;	 	db 'h', 0Dh, 0Ah, 0
  2682                                  
  2683                                  ;=============================================================================
  2684                                  ;        	uninitialized data
  2685                                  ;=============================================================================
  2686                                  
  2687                                  bss_start:
  2688                                  
  2689                                  ABSOLUTE bss_start
  2690                                  
  2691 000052A1 ??????                  alignb 4
  2692                                  
  2693                                  ;------------------------------------------------------------------------------
  2694                                  ; IFF/ILBM DATA
  2695                                  ;------------------------------------------------------------------------------
  2696                                  
  2697 000052A4 ????????                LBM_FileHandle:	resd 1
  2698 000052A8 ????????                LBM_FileSize:	resd 1
  2699                                  ;
  2700 000052AC ????????                picture.width:	resd 1 		; current picture width and height
  2701 000052B0 ????????                picture.height:	resd 1
  2702                                  
  2703                                  ;------------------------------------------------------------------------------
  2704                                  
  2705 000052B4 ????????                dev_vendor:	resd 1
  2706 000052B8 ????????                bus_dev_fn:	resd 1
  2707 000052BC ????????                stats_cmd:	resd 1
  2708 000052C0 ????                    ac97_NamBar:	resw 1
  2709 000052C2 ????                    ac97_NabmBar:	resw 1
  2710 000052C4 ??                      ac97_int_ln_reg: resb 1
  2711 000052C5 ??                      srb:		resb 1
  2712                                  
  2713                                  ; MODLOAD.ASM
  2714 000052C6 ????????                FileHandle:	resd 1
  2715 000052CA <res 43Ch>              Header:		resb ModHeader.size
  2716                                  
  2717                                  ; MODPLAY.ASM
  2718                                  ;MixSpeed:	    resw 1
  2719                                  
  2720                                  ModInfo:
  2721 00005706 ??                      ModInfo.OrderLen:   resb 1
  2722 00005707 ??                      ModInfo.ReStart:    resb 1
  2723 00005708 <res 80h>               ModInfo.Order:	    resb 128
  2724 00005788 ????????                ModInfo.Patterns:   resd 1
  2725                                  
  2726 0000578C <res 3Eh>               ModInfo.SampOfs:    resw 31
  2727 000057CA <res 3Eh>               ModInfo.SampSeg:    resw 31
  2728 00005808 <res 3Eh>               ModInfo.SampLen:    resw 31
  2729 00005846 <res 3Eh>               ModInfo.SampRep:    resw 31
  2730 00005884 <res 3Eh>               ModInfo.SampRepLen: resw 31
  2731 000058C2 <res 3Eh>               ModInfo.SampVol:    resw 31
  2732                                  
  2733                                  ; MODPLAY.ASM
  2734                                  PitchTable:	;resw 857
  2735 00005900 <res 1AC2h>             		resw 3425 ; 01/10/2017 (TMODPLAY.ASM)
  2736 000073C2 <res 4100h>             VolTable:	resb 16640
  2737                                  MixBuffer:	;resb 8172 ; MixBufSize ; 7680 (960*8) ; 18/10/2017
  2738 0000B4C2 <res 2000h>             		resb 8192	
  2739                                  
  2740                                  ; MODPLAY.ASM
  2741 0000D4C2 ??                      OrderPos:	resb 1
  2742 0000D4C3 ??                      Tempo:		resb 1
  2743 0000D4C4 ??                      TempoWait:	resb 1
  2744 0000D4C5 ??                      Bpm:		resb 1
  2745 0000D4C6 ??                      Row:		resb 1
  2746 0000D4C7 ??                      BreakRow:	resb 1
  2747 0000D4C8 ????                    BpmSamples:	resw 1
  2748 0000D4CA ????????                BufPtr:		resd 1
  2749 0000D4CE ????                    BufLen:		resw 1
  2750 0000D4D0 ????????                BufRep:		resd 1
  2751 0000D4D4 ????????                Note:		resd 1
  2752                                  ;Tracks:	resb TrackInfo.size*NumTracks
  2753                                  ; 07/10/2017
  2754 0000D4D8 <res 130h>              Tracks:		resb TrackInfo.size*8
  2755                                  
  2756 0000D608 ????????????????        alignb 16
  2757                                  
  2758                                  ; PLAY.ASM
  2759                                  ;Scope:		resw 320
  2760 0000D610 <res 200h>              RowOfs:		resw 256
  2761                                  
  2762                                  ; 23/10/2017
  2763 0000D810 <res 200h>              NewScope_L:	resw 256
  2764 0000DA10 <res 200h>              NewScope_R:	resw 256
  2765 0000DC10 <res 200h>              OldScope_L:	resw 256
  2766 0000DE10 <res 200h>              OldScope_R:	resw 256
  2767                                  
  2768                                  mod_file_name:
  2769 0000E010 <res 50h>               		resb 80
  2770                                  
  2771                                  ; 20/10/2017 (modplay7.s, SB16)
  2772                                  ; 19/10/2017 (modplay6.s, AC97)
  2773 0000E060 ??                      pan_shift:	resb 1
  2774 0000E061 ??                      volume_level:	resb 1
  2775                                  
  2776 0000E062 <res F9Eh>              alignb 4096
  2777                                  
  2778                                  Audio_Buffer:
  2779 0000F000 <res 10000h>            		resb BUFFERSIZE ; DMA Buffer Size / 2  (32768)
  2780                                  ;temp_buffer:
  2781                                  ;		;resb BUFFERSIZE / 4 ; 8192
  2782                                  ;		resb BUFFERSIZE / 2 ; 17/10/2017
  2783                                  
  2784 0001F000 <res 1000h>             alignb 65536
  2785                                  
  2786                                  DMA_Buffer:	;resb 65536
  2787 00020000 <res 20000h>            		resb 131072 ; 27/11/2023	
  2788                                  file_buffer:
  2789 00040000 <res 60000h>            		resb 65536*6
  2790                                  EOF:
