     1                                  ; ****************************************************************************
     2                                  ; pr1.s (pr386.s) - print file - by Erdogan Tan - 25/06/2022
     3                                  ; ----------------------------------------------------------------------------
     4                                  ; Retro UNIX 386 v1 (& v1.1) - file print utility 
     5                                  ;
     6                                  ; [ Last Modification: 26/06/2022 ]
     7                                  
     8                                  ; Derived from disassembled source code of unix v2 '/bin/pr' 
     9                                  ;
    10                                  ; ****************************************************************************
    11                                  ; [ s2-bits.gz - bin/pr (archive date: 17-01-1972) ]
    12                                  
    13                                  ; Assembler: NASM v2.15
    14                                  ; ((nasm pr1.s -l pr1.txt -o pr1 -Z error.txt))
    15                                  
    16                                  ; UNIX v1 system calls
    17                                  _rele 	equ 0
    18                                  _exit 	equ 1
    19                                  _fork 	equ 2
    20                                  _read 	equ 3
    21                                  _write	equ 4
    22                                  _open	equ 5
    23                                  _close 	equ 6
    24                                  _wait 	equ 7
    25                                  _creat 	equ 8
    26                                  _link 	equ 9
    27                                  _unlink	equ 10
    28                                  _exec	equ 11
    29                                  _chdir	equ 12
    30                                  _time 	equ 13
    31                                  _mkdir 	equ 14
    32                                  _chmod	equ 15
    33                                  _chown	equ 16
    34                                  _break	equ 17
    35                                  _stat	equ 18
    36                                  _seek	equ 19
    37                                  _tell 	equ 20
    38                                  _mount	equ 21
    39                                  _umount	equ 22
    40                                  _setuid	equ 23
    41                                  _getuid	equ 24
    42                                  _stime	equ 25
    43                                  _quit	equ 26	
    44                                  _intr	equ 27
    45                                  _fstat	equ 28
    46                                  _emt 	equ 29
    47                                  _mdate 	equ 30
    48                                  _stty 	equ 31
    49                                  _gtty	equ 32
    50                                  _ilgins	equ 33
    51                                  _sleep	equ 34 ; Retro UNIX 8086 v1 feature only !
    52                                  _msg    equ 35 ; Retro UNIX 386 v1 feature only !
    53                                  _geterr	equ 36 ; Retro UNIX 386 v1 feature only !
    54                                  ; 12/01/2022 - Retro UNIX 386 v1.2
    55                                  ; Retro UNIX 386 v2 system calls
    56                                  _setgid	equ 37
    57                                  _getgid	equ 38
    58                                  _sysver	equ 39 ; (get) Retro Unix 386 version
    59                                  
    60                                  ;;;
    61                                  ESCKey equ 1Bh
    62                                  EnterKey equ 0Dh
    63                                  
    64                                  %macro sys 1-4
    65                                      ; 03/09/2015	
    66                                      ; 13/04/2015
    67                                      ; Retro UNIX 386 v1 system call.		
    68                                      %if %0 >= 2   
    69                                  	mov ebx, %2
    70                                  	%if %0 >= 3    
    71                                  	    mov ecx, %3
    72                                  	    %if %0 = 4
    73                                  	       mov edx, %4   
    74                                  	    %endif
    75                                  	%endif
    76                                      %endif
    77                                      mov eax, %1
    78                                      int 30h	   
    79                                  %endmacro
    80                                  
    81                                  ; 25/06/2022
    82                                  struc stat
    83                                  	; Note: This is for Retro UNIX v1 'sysstat' output !!!
    84                                  	; (34 bytes)
    85 00000000 ????                    	.inode:  resw 1	
    86 00000002 ????                    	.mode:	 resw 1
    87 00000004 ??                      	.nlinks: resb 1
    88 00000005 ??                      	.uid:	 resb 1
    89 00000006 ????                    	.size:	 resw 1
    90 00000008 <res 10h>               	.dskptr: resw 8
    91 00000018 ????????                	.ctime:	 resd 1
    92 0000001C ????????                	.mtime:	 resd 1
    93 00000020 ????                    	.rsvd:   resw 1
    94                                  	.strucsize:
    95                                  endstruc 
    96                                  
    97                                  ; Retro UNIX 386 v1 system call format:
    98                                  ; sys systemcall (eax) <arg1 (ebx)>, <arg2 (ecx)>, <arg3 (edx)>
    99                                  
   100                                  ;-----------------------------------------------------------------
   101                                  ;  code
   102                                  ;-----------------------------------------------------------------
   103                                  
   104                                  [BITS 32] ; 32-bit intructions (for 80386 protected mode)
   105                                  
   106                                  [ORG 0] 
   107                                  
   108                                  START_CODE:
   109                                  	; 25/06/2022
   110 00000000 59                      	pop	ecx ; ecx = number of arguments
   111                                  	;
   112 00000001 58                      	pop	eax ; eax = argument 0 = executable file name
   113                                  	;
   114 00000002 BD[52050000]            	mov	ebp, program_msg
   115                                  	;
   116                                  	;dec	ecx
   117 00000007 FEC9                    	dec	cl
   118 00000009 7E7E                    	jng	short prn_0
   119                                  
   120 0000000B 880D[B8060000]          	mov	[argc], cl
   121                                  
   122                                  	sys	_open, lpt1, 1  ; open /dev/lpr for write
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000011 BB[49050000]        <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 00000016 B901000000          <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000001B B805000000          <1>  mov eax, %1
    78 00000020 CD30                <1>  int 30h
   123 00000022 730F                    	jnc	short prn_1
   124                                  
   125 00000024 B8[7C060000]            	mov	eax, printer_err_msg
   126 00000029 E84F020000              	call	print_msg
   127 0000002E E9BD000000              	jmp	hang	
   128                                  prn_1:
   129 00000033 A3[C4060000]            	mov	[prnfnum], eax
   130                                  
   131                                  prn_2:
   132 00000038 5F                      	pop	edi
   133                                  
   134 00000039 8A07                    	mov	al, [edi]	
   135                                  
   136 0000003B 3C2D                    	cmp	al, '-' ; option ?	
   137                                  	;jne	short prn_4
   138 0000003D 7405                    	je	short case_l
   139 0000003F E9B5000000              	jmp	prn_4
   140                                  case_l:
   141 00000044 47                      	inc	edi
   142 00000045 8A07                    	mov	al, [edi]
   143                                  
   144 00000047 3C6C                    	cmp	al, 'l'
   145 00000049 7509                    	jne	short case_r 
   146 0000004B C605[B3060000]4E        	mov	byte [rows], 78
   147 00000052 EB24                    	jmp	short prn_3
   148                                  case_r:
   149 00000054 3C72                    	cmp	al, 'r'
   150 00000056 7509                    	jne	short case_m
   151 00000058 C605[B3060000]42        	mov	byte [rows], 66
   152 0000005F EB17                    	jmp	short prn_3
   153                                  case_m:
   154 00000061 3C6D                    	cmp	al, 'm'
   155 00000063 7509                    	jne	short case_c
   156 00000065 C605[B4060000]00        	mov	byte [cdatef], 0
   157 0000006C EB0A                    	jmp	short prn_3
   158                                  case_c:
   159 0000006E 3C63                    	cmp	al, 'c'
   160 00000070 75FC                    	jne	short case_c
   161                                  	;mov	byte [cdatef], 1
   162 00000072 FE05[B4060000]          	inc	byte [cdatef]
   163                                  
   164                                  prn_3:
   165 00000078 FE0D[B8060000]          	dec	byte [argc]
   166 0000007E 7FB8                    	jg	short prn_2
   167                                  
   168                                  	; print usage message on /dev/tty
   169 00000080 803D[B9060000]00        	cmp	byte [files], 0
   170 00000087 772E                    	ja	short fclose_exit
   171                                  prn_0:
   172                                  	; print usage message on stdout
   173                                  	;sys	_write, 1, program_msg, size_pmsg
   174                                  	sys	_msg, program_msg, size_pmsg, 0Fh 
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000089 BB[52050000]        <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 0000008E B93F000000          <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 00000093 BA0F000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 00000098 B823000000          <1>  mov eax, %1
    78 0000009D CD30                <1>  int 30h
   175                                  
   176                                  	sys	_write, 1, usage_msg, size_umsg
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 0000009F BB01000000          <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 000000A4 B9[92050000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 000000A9 BAE9000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000000AE B804000000          <1>  mov eax, %1
    78 000000B3 CD30                <1>  int 30h
   177 000000B5 EB39                    	jmp	short hang
   178                                  
   179                                  fclose_exit:
   180                                  	sys	_write, 1, nextline, 2
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000000B7 BB01000000          <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 000000BC B9[79060000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 000000C1 BA02000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000000C6 B804000000          <1>  mov eax, %1
    78 000000CB CD30                <1>  int 30h
   181                                  
   182 000000CD 803D[C8060000]00        	cmp	byte [txtfnum], 0
   183 000000D4 760D                    	jna	short pclose_exit
   184                                  p_err_exit:
   185                                  	sys	_close, [txtfnum]
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000000D6 8B1D[C8060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000000DC B806000000          <1>  mov eax, %1
    78 000000E1 CD30                <1>  int 30h
   186                                  	;jmp	short pclose_exit
   187                                  
   188                                  pclose_exit:
   189                                  	sys	_close, [prnfnum]
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000000E3 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000000E9 B806000000          <1>  mov eax, %1
    78 000000EE CD30                <1>  int 30h
   190                                  hang:
   191                                  	sys	_exit
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000000F0 B801000000          <1>  mov eax, %1
    78 000000F5 CD30                <1>  int 30h
   192 000000F7 EBF7                    	jmp	short hang
   193                                  
   194                                  prn_4:
   195 000000F9 FE05[B9060000]          	inc	byte [files]
   196                                  
   197                                  	; edi = txt file name address
   198                                  
   199                                  	sys	_open, edi, 0 ; open for read
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000000FF 89FB                <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 00000101 B900000000          <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 00000106 B805000000          <1>  mov eax, %1
    78 0000010B CD30                <1>  int 30h
   200 0000010D 730F                    	jnc	short prn_5
   201                                  
   202                                  f_err_exit:
   203 0000010F B8[90060000]            	mov	eax, file_err_msg
   204 00000114 E864010000              	call	print_msg
   205 00000119 E95AFFFFFF              	jmp	prn_3
   206                                  
   207                                  prn_5:
   208 0000011E A3[C8060000]            	mov	[txtfnum], eax
   209                                  
   210 00000123 F605[B4060000]FF        	test	byte [cdatef], 0FFh
   211 0000012A 7409                    	jz	short prn_6
   212                                  	sys	_time
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000012C B80D000000          <1>  mov eax, %1
    78 00000131 CD30                <1>  int 30h
   213 00000133 EB13                    	jmp	short prn_7
   214                                  prn_6:
   215                                  	sys	_fstat, eax, stbuf
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000135 89C3                <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 00000137 B9[54070000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000013C B81C000000          <1>  mov eax, %1
    78 00000141 CD30                <1>  int 30h
   216 00000143 A1[70070000]            	mov	eax, [stbuf+stat.mtime]
   217                                  prn_7:
   218 00000148 A3[C0060000]            	mov	[mtime], eax
   219                                  
   220                                  write_pages:
   221 0000014D 31C0                    	xor	eax, eax ; 0
   222 0000014F 66A3[BA060000]          	mov	[pgnumber], ax
   223 00000155 A2[BC060000]            	mov	[eof], al
   224 0000015A A2[BD060000]            	mov	[cchar], al	
   225                                  write_next_page:	
   226 0000015F E860010000              	call	readf
   227 00000164 732B                    	jnc	short prn_8
   228                                  
   229                                  	sys	_close, [txtfnum]
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000166 8B1D[C8060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000016C B806000000          <1>  mov eax, %1
    78 00000171 CD30                <1>  int 30h
   230                                  
   231 00000173 FE0D[B8060000]          	dec	byte [argc]
   232                                  	;jng	short pclose_exit
   233 00000179 7F05                    	jg	short p_next_file
   234 0000017B E963FFFFFF              	jmp	pclose_exit
   235                                  
   236                                  p_next_file:
   237 00000180 29C0                    	sub	eax, eax
   238                                  
   239 00000182 A2[C8060000]            	mov	[txtfnum], al ; 0 ; open file number
   240                                  	;mov	[fbuf], eax ; 0	  ; open file number
   241 00000187 A3[CC060000]            	mov	[fbuf+4], eax ; 0 ; character count
   242                                  
   243 0000018C E9A7FEFFFF              	jmp	prn_2
   244                                  
   245                                  prn_8:
   246                                  	sys	_write, [prnfnum], EmptyLines, 4 ;  2 rows
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000191 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 00000197 B9[A1060000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 0000019C BA04000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000001A1 B804000000          <1>  mov eax, %1
    78 000001A6 CD30                <1>  int 30h
   247 000001A8 7252                    	jc	short prn_err
   248                                  
   249 000001AA A1[C0060000]            	mov	eax, [mtime]
   250 000001AF 57                      	push	edi
   251 000001B0 E8A2010000              	call	ctime
   252 000001B5 5F                      	pop	edi
   253                                  	; cbuf = date&time string (26 bytes)
   254                                  	
   255                                  	sys	_write, [prnfnum], cbuf, 26
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000001B6 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 000001BC B9[2E050000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 000001C1 BA1A000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000001C6 B804000000          <1>  mov eax, %1
    78 000001CB CD30                <1>  int 30h
   256 000001CD 722D                    	jc	short prn_err
   257                                  	
   258                                  	sys	_write, [prnfnum], PageHeader-2, 2
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000001CF 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 000001D5 B9[AB060000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 000001DA BA02000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 000001DF B804000000          <1>  mov eax, %1
    78 000001E4 CD30                <1>  int 30h
   259 000001E6 7214                    	jc	short prn_err
   260                                  
   261 000001E8 66FF05[BA060000]        	inc	word [pgnumber]
   262                                  
   263 000001EF 89FE                    	mov	esi, edi ; file name address (on stack)
   264                                  
   265 000001F1 31D2                    	xor	edx, edx
   266                                  prn_9:	
   267 000001F3 AC                      	lodsb
   268 000001F4 08C0                    	or	al, al
   269 000001F6 7413                    	jz	short prn_10
   270 000001F8 FEC2                    	inc	dl
   271 000001FA EBF7                    	jmp	short prn_9
   272                                  
   273                                  prn_err:
   274 000001FC B8[7C060000]            	mov	eax, printer_err_msg
   275 00000201 E877000000              	call	print_msg	
   276 00000206 E9CBFEFFFF              	jmp	p_err_exit
   277                                  
   278                                  prn_10:
   279 0000020B 89F9                    	mov	ecx, edi
   280                                  	;sys	_write, [prnfnum], edi, edx
   281                                  	sys	_write
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000020D B804000000          <1>  mov eax, %1
    78 00000212 CD30                <1>  int 30h
   282 00000214 72E6                    	jc	short prn_err
   283                                  
   284 00000216 B9[AD060000]            	mov	ecx, PageHeader
   285 0000021B B206                    	mov	dl, 6
   286                                  	;sys	_write, [prnfnum], PageHeader, edx
   287                                  	sys	_write
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000021D B804000000          <1>  mov eax, %1
    78 00000222 CD30                <1>  int 30h
   288 00000224 72D6                    	jc	short prn_err
   289                                  
   290 00000226 66A1[BA060000]          	mov	ax, [pgnumber] 
   291 0000022C E8A8000000              	call	write_pg_num
   292 00000231 72C9                    	jc	short prn_err	
   293                                  
   294                                  	;sys	_write, [prnfnum], EmptyLines, 8 ; 4 rows
   295 00000233 B9[A1060000]            	mov	ecx, EmptyLines
   296 00000238 B208                    	mov	dl, 8
   297                                  	sys	_write
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000023A B804000000          <1>  mov eax, %1
    78 0000023F CD30                <1>  int 30h
   298 00000241 72B9                    	jc	short prn_err
   299                                  
   300 00000243 8A15[B3060000]          	mov	dl, [rows]
   301 00000249 80EA0B                  	sub	dl, 11
   302 0000024C 89D5                    	mov	ebp, edx
   303                                  
   304                                  write_next_char:
   305                                  prn_11:
   306 0000024E E844000000              	call	getchar
   307 00000253 E896000000              	call	writechar
   308 00000258 3C0A                    	cmp	al, 10 ; lf character, nextline
   309 0000025A 75F2                    	jne	short prn_11
   310 0000025C 4D                      	dec	ebp
   311 0000025D 75EF                    	jnz	short prn_11
   312                                  	
   313                                  	sys	_write, [prnfnum], EmptyLines, 10 ; 5 rows
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 0000025F 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 00000265 B9[A1060000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 0000026A BA0A000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000026F B804000000          <1>  mov eax, %1
    78 00000274 CD30                <1>  int 30h
   314 00000276 7284                    	jc	short prn_err
   315                                  prn_12:
   316 00000278 E9E2FEFFFF              	jmp	write_next_page
   317                                  
   318                                  ;-----------------------------------------------------------------
   319                                  
   320                                  print_msg:
   321                                  	; eax = asciiz string address
   322 0000027D 89C2                    	mov	edx, eax
   323 0000027F 4A                      	dec	edx
   324                                  nextchr:
   325 00000280 42                      	inc	edx
   326 00000281 803A00                  	cmp	byte [edx], 0
   327 00000284 77FA                    	ja	short nextchr
   328                                  	;cmp	[edx], 0Dh
   329                                  	;ja	short nextchr
   330 00000286 29C2                    	sub	edx, eax
   331                                  	; edx = asciiz string length
   332                                  	;
   333                                  	sys	_write, 1, eax
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 00000288 BB01000000          <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 0000028D 89C1                <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000028F B804000000          <1>  mov eax, %1
    78 00000294 CD30                <1>  int 30h
   334 00000296 C3                      	retn
   335                                  
   336                                  ; 25/06/2022
   337                                  ;-----------------------------------------------------------------
   338                                  
   339                                  getchar:
   340 00000297 A0[BD060000]            	mov	al, [cchar]
   341 0000029C 08C0                    	or	al, al
   342 0000029E 7408                    	jz	short getchar_1
   343 000002A0 C605[BD060000]00        	mov	byte [cchar], 0
   344 000002A7 C3                      	retn
   345                                  getchar_1:
   346 000002A8 F605[BC060000]FF        	test	byte [eof], 0FFh
   347 000002AF 7403                    	jz	short getchar_2
   348 000002B1 B00A                    	mov	al, 10 ; lf, nextline
   349 000002B3 C3                      	retn
   350                                  getchar_2:
   351 000002B4 E857000000              	call	getc
   352 000002B9 7308                    	jnc	short getchar_ok
   353 000002BB FE05[BC060000]          	inc	byte [eof]
   354 000002C1 EBD4                    	jmp	short getchar
   355                                  getchar_ok:
   356                                  readf_ok:
   357 000002C3 C3                      	retn
   358                                  
   359                                  ; 25/06/2022
   360                                  ;-----------------------------------------------------------------
   361                                  
   362                                  readf:
   363 000002C4 E8CEFFFFFF              	call	getchar
   364 000002C9 A2[BD060000]            	mov	[cchar], al
   365 000002CE F605[BC060000]FF        	test	byte [eof], 0FFh
   366 000002D5 74EC                    	jz	short readf_ok
   367                                  readf_err:
   368 000002D7 F9                      	stc
   369 000002D8 C3                      	retn
   370                                  
   371                                  ; 25/06/2022
   372                                  ;-----------------------------------------------------------------
   373                                  
   374                                  write_pg_num:
   375                                  	; eax = page number (<= 65535)
   376 000002D9 29C9                    	sub	ecx, ecx
   377 000002DB B10A                    	mov	cl, 10
   378 000002DD 31D2                    	xor	edx, edx
   379                                  w_pnum_1:
   380 000002DF F7F1                    	div	ecx
   381 000002E1 52                      	push	edx
   382 000002E2 21C0                    	and	eax, eax
   383 000002E4 7405                    	jz	short w_pnum_2
   384 000002E6 E8EEFFFFFF              	call	write_pg_num
   385                                  w_pnum_2:	
   386 000002EB 58                      	pop	eax
   387 000002EC 0430                    	add	al, '0'
   388                                  writechar:
   389 000002EE A2[BE060000]            	mov	[chr], al
   390                                  	sys	_write, [prnfnum], chr, 1
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69 000002F3 8B1D[C4060000]      <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71 000002F9 B9[BE060000]        <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73 000002FE BA01000000          <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 00000303 B804000000          <1>  mov eax, %1
    78 00000308 CD30                <1>  int 30h
   391 0000030A A0[BE060000]            	mov	al, [chr]
   392 0000030F C3                      	retn		
   393                                  	
   394                                  
   395                                  ; 25/06/2022
   396                                  ;-----------------------------------------------------------------
   397                                  ; get characters from input file
   398                                  
   399                                  getc:
   400 00000310 A1[CC060000]            	mov	eax, [fbuf+4] ; character count
   401 00000315 21C0                    	and	eax, eax
   402 00000317 7522                    	jnz	short gch1
   403                                  gch0:
   404 00000319 8B1D[C8060000]          	mov	ebx, [fbuf] ; file descriptor/number
   405 0000031F B9[D4060000]            	mov	ecx, fbuf + 12 ; read buffer address
   406 00000324 890D[D0060000]          	mov 	[fbuf+8], ecx ; character offset
   407 0000032A 29D2                    	sub	edx, edx
   408 0000032C B280                    	mov	dl, 128
   409                                  	sys	_read ; sys _read, ebx, ecx, edx
    65                              <1> 
    66                              <1> 
    67                              <1> 
    68                              <1>  %if %0 >= 2
    69                              <1>  mov ebx, %2
    70                              <1>  %if %0 >= 3
    71                              <1>  mov ecx, %3
    72                              <1>  %if %0 = 4
    73                              <1>  mov edx, %4
    74                              <1>  %endif
    75                              <1>  %endif
    76                              <1>  %endif
    77 0000032E B803000000          <1>  mov eax, %1
    78 00000333 CD30                <1>  int 30h
   410 00000335 721C                    	jc	short gch2
   411 00000337 09C0                    	or	eax, eax
   412 00000339 741A                    	jz	short gch3
   413                                  gch1:
   414 0000033B 48                      	dec	eax
   415 0000033C A3[CC060000]            	mov	[fbuf+4], eax ; character count in buffer
   416 00000341 8B1D[D0060000]          	mov	ebx, [fbuf+8] ; current character offset
   417                                  	;xor	eax, eax
   418 00000347 30E4                    	xor	ah, ah
   419 00000349 8A03                    	mov	al, [ebx]
   420 0000034B 43                      	inc	ebx
   421 0000034C 891D[D0060000]          	mov	[fbuf+8], ebx ; next character offset
   422 00000352 C3                      	retn 	
   423                                  gch2:
   424 00000353 31C0                    	xor	eax, eax
   425                                  gch3:
   426 00000355 F9                      	stc
   427 00000356 C3                      	retn
   428                                  
   429                                  ; 25/06/2022
   430                                  ;=================================================================
   431                                  %include 'ctime386.s'
   432                              <1> ; ****************************************************************************
   433                              <1> ; ctime386.inc (Retro Unix 386 v1 - /bin/ls - list file or directory)
   434                              <1> ; ----------------------------------------------------------------------------
   435                              <1> ; RETRO UNIX 386 (Retro Unix == Turkish Rational Unix)
   436                              <1> ; Operating System Project (v0.2) by ERDOGAN TAN (Beginning: 24/12/2013)
   437                              <1> ;
   438                              <1> ; [ Last Modification: 25/02/2022 ]
   439                              <1> ;
   440                              <1> ; Derived from 'CTIME.INC' source code file of 'Retro UNIX 8086 v1'
   441                              <1> ; operating system project, /bin/ls source code by Erdogan Tan
   442                              <1> ; (28/11/2013)
   443                              <1> ;
   444                              <1> ; Derived from 'ctime.c' file of original UNIX v5 (usr/source/s3/ctime.c)
   445                              <1> ;
   446                              <1> ; ls386.s (ls0.s) 23/09/2015 - 06/10/2015
   447                              <1> ; include ctime386.inc
   448                              <1> ;
   449                              <1> ; ****************************************************************************
   450                              <1> ; ctime386.s (06/10/2015 - 21/02/2022)
   451                              <1> 
   452                              <1> ; Assembler: NASM 2.11 (NASM 2.15, 2022)
   453                              <1> 
   454                              <1> ;timezone equ 5*60*60
   455                              <1> 
   456                              <1> ctime:  ; ctime(at)
   457                              <1> 	; int *at;
   458                              <1> 	; {
   459                              <1> 	; 	return(asctime(localtime(at)));
   460                              <1> 	; }
   461                              <1> 
   462                              <1> 	; EAX = unix epoch time (in seconds)
   463                              <1> 
   464                              <1> 	;call localtime
   465                              <1> 	;call asctime
   466                              <1> 
   467                              <1> 	;retn
   468                              <1>   
   469                              <1> localtime:
   470                              <1> 	; localtime(tim)
   471                              <1> 	; int tim[];
   472                              <1> 	; 	{
   473                              <1> 	;		register int *t, *ct, dayno;
   474                              <1> 	;	int daylbegin, daylend;
   475                              <1> 	;	int copyt[2];
   476                              <1> 	;	t = copyt;
   477                              <1> 	;	t[0] = tim[0];
   478                              <1> 	;	t[1] = tim[1];
   479                              <1> 	;	dpadd(t, -timezone);
   480                              <1> 	;	ct = gmtime(t);
   481                              <1> 	;	dayno = ct[YDAY];
   482                              <1> 	;	if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
   483                              <1> 	;	    dayno==5 && ct[HOUR]>=2))) {
   484                              <1> 	;		daylight =| 1;
   485                              <1> 	;		daylbegin = -1;
   486                              <1> 	;		daylend = 367;
   487                              <1> 	;	} else {
   488                              <1> 	;		daylbegin = sunday(ct, 119);	/* last Sun in Apr */
   489                              <1> 	;		daylend = sunday(ct, 303);	/* last Sun in Oct */
   490                              <1> 	;	}
   491                              <1> 	;	if (daylight &&
   492                              <1> 	;	    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
   493                              <1> 	;	    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
   494                              <1> 	;		dpadd(t, 1*60*60);
   495                              <1> 	;		ct = gmtime(t);
   496                              <1> 	;		ct[ISDAY]++;
   497                              <1> 	;	}
   498                              <1> 	;	return(ct);
   499                              <1> 	;	}
   500                              <1> 
   501                              <1> 	;sub	eax, timezone	
   502                              <1> 
   503                              <1> 	;push	eax
   504                              <1> 
   505 00000357 E882000000          <1> 	call 	gmtime
   506                              <1> ; if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
   507                              <1> ;     dayno==5 && ct[HOUR]>=2))) {
   508                              <1> 	;cmp	byte [nixonflg], 0
   509                              <1> 	;jna	short lt1
   510                              <1> 	;cmp	word [year], 1974
   511                              <1> 	;jb	short lt1
   512                              <1> 	;ja	short lt0
   513                              <1> 	;cmp	word [yday], 5
   514                              <1> 	;jb	short lt1
   515                              <1> 	;ja	short lt0 
   516                              <1> 	;cmp	word [hour], 2
   517                              <1> 	;jb	short lt1
   518                              <1> ; nixonflag > 0
   519                              <1> ;lt0:
   520                              <1> 	;mov	word [daylight], 1
   521                              <1> 	;mov	word [daylbegin], -1
   522                              <1> 	;mov	word [daylend], 367
   523                              <1> ;	;jmp	short lt2
   524                              <1> 
   525                              <1> ; } else {
   526                              <1> ;lt1:
   527                              <1> ;	mov	cx, 119
   528                              <1> ;	call	sunday ; sunday(ct, 119); /* last Sun in Apr */
   529                              <1> ;	mov	[daylbegin], cx
   530                              <1> ;	mov	cx, 303
   531                              <1> ;	call	sunday ; sunday(ct, 303); /* last Sun in Oct */	
   532                              <1> ;	mov	[daylend], cx
   533                              <1> ;lt2:
   534                              <1> ; if (daylight &&
   535                              <1> ;    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
   536                              <1> ;    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
   537                              <1> 
   538                              <1> ;	pop	eax
   539                              <1> 
   540                              <1> 	;cmp	byte [daylight], 0
   541                              <1> 	;jna	short lt5
   542                              <1> 	
   543                              <1> 	;mov	cx, [yday]
   544                              <1> 
   545                              <1> 	;cmp	cx, [daylbegin]
   546                              <1> 	;jb	short lt5
   547                              <1> 	;ja	short lt3
   548                              <1> 	;cmp	word [hour], 2
   549                              <1> 	;jb	short lt5
   550                              <1> 	;jmp	short lt4
   551                              <1> ;lt3:
   552                              <1> 	;cmp	cx, [daylend]
   553                              <1> 	;jb	short lt4
   554                              <1> 	;ja	short lt5
   555                              <1> 	;cmp	word [hour], 1
   556                              <1> 	;jnb	short lt5
   557                              <1> ;lt4:
   558                              <1> 	;add	eax, 1*60*60
   559                              <1> 	;call	gmtime
   560                              <1> 	;inc	word [isday]
   561                              <1> ;lt5:
   562                              <1> ;	}
   563                              <1> ;	return(ct);
   564                              <1> ;	}
   565                              <1> 
   566                              <1> 	;retn
   567                              <1> 
   568                              <1> 	; 21/02/2022 (Retro UNIX 386 v1&v1.1&v1.2)
   569                              <1> asctime:
   570                              <1> 	; asctime(t)
   571                              <1> 	;int *t;
   572                              <1> 	;{
   573                              <1> 	;	register char *cp, *ncp;
   574                              <1> 	;	register int *tp;
   575                              <1> 	;
   576                              <1> 	;	cp = cbuf;
   577                              <1> 	;	for (ncp = "Day Mon 00 00:00:00 1900\n"; *cp++ = *ncp++;);
   578                              <1> 	;	ncp = &"SunMonTueWedThuFriSat"[3*t[6]];
   579                              <1> 	;	cp = cbuf;
   580                              <1> 	;	*cp++ = *ncp++;
   581                              <1> 	;	*cp++ = *ncp++;
   582                              <1> 	;	*cp++ = *ncp++;
   583                              <1> 	;	cp++;
   584                              <1> 	;	tp = &t[4];
   585                              <1> 	;	ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(*tp)*3];
   586                              <1> 	;	*cp++ = *ncp++;
   587                              <1> 	;	*cp++ = *ncp++;
   588                              <1> 	;	*cp++ = *ncp++;
   589                              <1> 	;	cp = numb(cp, *--tp);
   590                              <1> 	;	cp = numb(cp, *--tp+100);
   591                              <1> 	;	cp = numb(cp, *--tp+100);
   592                              <1> 	;	cp = numb(cp, *--tp+100);
   593                              <1> 	;	cp =+ 2;
   594                              <1> 	;	cp = numb(cp, t[YEAR]);
   595                              <1> 	;	return(cbuf);
   596                              <1> 	;}
   597                              <1> 	
   598                              <1> 	;;mov	edi, cbuf
   599                              <1> 	;;mov	esi, ncp0
   600                              <1> 	;;mov	ecx, 13
   601                              <1> 	;;movsw	
   602                              <1> 	;
   603 0000035C BF[2E050000]        <1> 	mov	edi, cbuf	
   604                              <1> 	;movzx	esi, word [wday]
   605                              <1> 	;shl	si, 2
   606                              <1> 	;add	esi, ncp1
   607                              <1> 	;movsd
   608 00000361 0FB735[C4040000]    <1> 	movzx	esi, word [month]
   609                              <1> 	;shl	si, 2
   610 00000368 C1E602              <1> 	shl	esi, 2 ; 21/02/2022
   611 0000036B 81C6[FA040000]      <1> 	add	esi, ncp2 - 4
   612 00000371 A5                  <1> 	movsd
   613                              <1> 	;movzx eax, word [day]
   614 00000372 66A1[C2040000]      <1> 	mov	ax, [day]
   615                              <1> 	;mov	cx, 10
   616 00000378 B10A                <1> 	mov	cl, 10
   617 0000037A E824010000          <1> 	call	numb
   618 0000037F B020                <1>  	mov	al, 20h
   619 00000381 AA                  <1> 	stosb
   620                              <1> 	;
   621 00000382 66A1[C6040000]      <1> 	mov	ax, [year]
   622 00000388 B564                <1> 	mov	ch, 100
   623 0000038A F6F5                <1> 	div	ch
   624                              <1> 	;push	ax ;
   625                              <1> 	; 21/02/2022
   626 0000038C 50                  <1> 	push	eax
   627 0000038D 6698                <1> 	cbw ; century (19, 20)
   628 0000038F E80F010000          <1> 	call	numb
   629                              <1> 	;pop	ax
   630                              <1> 	; 21/02/2022
   631 00000394 58                  <1> 	pop	eax
   632 00000395 88E0                <1> 	mov	al, ah
   633 00000397 6698                <1> 	cbw ;	year (0 to 99)
   634 00000399 E805010000          <1> 	call	numb
   635 0000039E B020                <1> 	mov 	al, 20h
   636 000003A0 AA                  <1> 	stosb
   637                              <1> 	;
   638                              <1> 	;movzx   esi, word [wday]
   639                              <1> 	; 21/02/2022
   640 000003A1 668B35[C8040000]    <1> 	mov	si, [wday]
   641                              <1> 	;shl	si, 2
   642 000003A8 C1E602              <1> 	shl	esi, 2 ; 21/02/2022
   643 000003AB 81C6[E2040000]      <1> 	add	esi, ncp1
   644 000003B1 A5                  <1> 	movsd
   645                              <1> 	;
   646 000003B2 66A1[C0040000]      <1> 	mov	ax, [hour]
   647 000003B8 E8E6000000          <1> 	call	numb
   648 000003BD B03A                <1>  	mov	al, ':'
   649 000003BF AA                  <1> 	stosb
   650 000003C0 66A1[BE040000]      <1> 	mov	ax, [minute]
   651 000003C6 E8D8000000          <1> 	call	numb
   652 000003CB B03A                <1>  	mov	al, ':'
   653 000003CD AA                  <1> 	stosb
   654 000003CE 66A1[BC040000]      <1> 	mov	ax, [second]
   655 000003D4 E8CA000000          <1> 	call	numb
   656 000003D9 B020                <1>  	mov	al, 20h
   657 000003DB AA                  <1> 	stosb
   658                              <1> 	;mov	ax, [year]
   659                              <1> 	;mov	ch, 100
   660                              <1> 	;div	ch
   661                              <1> 	;push	ax ;
   662                              <1> 	;cbw ; century (19, 20)
   663                              <1> 	;call	numb
   664                              <1> 	;pop	ax
   665                              <1> 	;mov	al, ah
   666                              <1> 	;cbw ;	year (0 to 99)
   667                              <1> 	;call	numb
   668                              <1> 	;mov	al, 20h
   669                              <1> 	;stosb
   670                              <1> 	;xor	al, al
   671                              <1> 	;stosb
   672                              <1> 
   673                              <1> 	; 25/02/2022
   674 000003DC AA                  <1> 	stosb
   675                              <1> 
   676 000003DD C3                  <1> 	retn
   677                              <1> 
   678                              <1> gmtime:
   679                              <1> 	; 21/02/2022 (Retro UNIX 386 v1&v1.1&v1.2)
   680                              <1> 	; 24/11/2013 (yday, wday)
   681                              <1> 	; Retro UNIX 8086 v1 - UNIX.ASM (20/06/2013)
   682                              <1> 	; Retro UNIX 8086 v1 feature/procedure only!
   683                              <1> 	; 'convert_from_epoch' procedure prototype: 
   684                              <1> 	; 	            UNIXCOPY.ASM, 10/03/2013
   685                              <1> 	; 30/11/2012
   686                              <1> 	; Derived from DALLAS Semiconductor
   687                              <1> 	; Application Note 31 (DS1602/DS1603)
   688                              <1> 	; 6 May 1998
   689                              <1> 	;
   690                              <1> 	; INPUT:
   691                              <1> 	; DX:AX = Unix (Epoch) Time
   692                              <1> 	;
   693                              <1> 	; ((Modified registers: AX, DX, CX, BX))  
   694                              <1> 	;
   695 000003DE 31D2                <1> 	xor edx, edx
   696                              <1> 	;mov ecx, 60
   697                              <1> 	; 21/02/2022
   698 000003E0 31C9                <1> 	xor ecx, ecx
   699 000003E2 B13C                <1> 	mov cl, 60
   700 000003E4 F7F1                <1> 	div ecx
   701                              <1> 	;mov [imin], eax     	  ; whole minutes
   702                              <1> 				  ; since 1/1/1970
   703 000003E6 668915[BC040000]    <1> 	mov [second], dx  	  ; leftover seconds
   704                              <1> 	;mov ecx, 60
   705 000003ED 29D2                <1> 	sub edx, edx
   706 000003EF F7F1                <1> 	div ecx
   707                              <1> 	;mov [ihrs], eax   	  ; whole hours
   708                              <1> 				  ; since 1/1/1970
   709 000003F1 668915[BE040000]    <1> 	mov [minute], dx  	  ; leftover minutes
   710                              <1> 	;mov ecx, 24
   711 000003F8 31D2                <1> 	xor edx, edx
   712 000003FA B118                <1> 	mov cl, 24
   713 000003FC F7F1                <1> 	div ecx
   714                              <1> 	;mov [iday], ax  	  ; whole days
   715                              <1> 				  ; since 1/1/1970
   716 000003FE 66A3[C8040000]      <1> 	mov [wday], ax 		  ; 24/11/2013	
   717 00000404 668915[C0040000]    <1> 	mov [hour], dx   	  ; leftover hours
   718 0000040B 05DB020000          <1> 	add eax, 365+366	  ; whole day since
   719                              <1> 				  ; 1/1/1968 	
   720                              <1> 	;mov [iday], ax
   721 00000410 50                  <1> 	push eax
   722 00000411 66B9B505            <1> 	mov cx, (4*365)+1	  ; 4 years = 1461 days
   723 00000415 29D2                <1> 	sub edx, edx
   724 00000417 F7F1                <1> 	div ecx
   725 00000419 59                  <1> 	pop ecx
   726                              <1> 	;mov [lday], ax  	  ; count of quadyrs (4 years)
   727 0000041A 52                  <1> 	push edx
   728                              <1> 	;mov [qday], dx           ; days since quadyr began
   729 0000041B 6683FA3C            <1> 	cmp dx, 31+29             ; if past feb 29 then
   730 0000041F F5                  <1> 	cmc			  ; add this quadyr's leap day
   731 00000420 83D000              <1> 	adc eax, 0		  ; to # of qadyrs (leap days)
   732                              <1> 	;mov [lday], ax  	  ; since 1968			  
   733                              <1> 	;mov cx, [iday]
   734 00000423 91                  <1> 	xchg ecx, eax		  ; CX = lday, AX = iday		  
   735 00000424 29C8                <1> 	sub eax, ecx		  ; iday - lday
   736                              <1> 	;mov ecx, 365
   737 00000426 66B96D01            <1> 	mov cx, 365
   738 0000042A 31D2                <1> 	xor edx, edx		  ; DX  = 0
   739                              <1> 	; EAX = iday-lday
   740 0000042C F7F1                <1> 	div ecx
   741                              <1> 	;mov [iyrs], ax		  ; whole years since 1968
   742                              <1> 	; jday = iday - (iyrs*365) - lday
   743                              <1> 	;mov [jday], dx  	  ; days since 1/1 of current year
   744                              <1> 	;add eax, 1968		  ; compute year
   745 0000042E 05B0070000          <1> 	add eax, 1968
   746 00000433 66A3[C6040000]      <1> 	mov [year], ax
   747 00000439 89C3                <1> 	mov ebx, eax		
   748                              <1> 	;mov ax, [qday]
   749 0000043B 58                  <1> 	pop eax
   750 0000043C 663D6D01            <1> 	cmp ax, 365		  ; if qday <= 365 and qday >= 60	
   751 00000440 7709                <1> 	ja short L1		  ; jday = jday +1
   752 00000442 6683F83C            <1> 	cmp ax, 60	          ; if past 2/29 and leap year then
   753 00000446 F5                  <1>         cmc			  ; add a leap day to the # of whole
   754 00000447 6683D200            <1> 	adc dx, 0		  ; days since 1/1 of current year
   755                              <1> L1:			
   756                              <1> 	;mov [jday], dx
   757                              <1> 	;mov [yday], dx 	  ; 24/11/2013	
   758                              <1> 	;mov cx, 12		  ; estimate month
   759                              <1> 	;xchg cx, dx		  ; CX = jday, DX = month 	
   760                              <1> 	; 21/02/2022
   761 0000044B 30ED                <1> 	xor ch, ch
   762 0000044D B10C                <1> 	mov cl, 12
   763 0000044F 87CA                <1> 	xchg ecx, edx 
   764 00000451 66B86E01            <1> 	mov ax, 366		  ; mday, max. days since 1/1 is 365
   765 00000455 6683E303            <1> 	and bx, 11b		  ; year mod 4	(and bx, 3) 
   766                              <1> L2:	; Month calculation	  ; 0 to 11  (11 to 0)	
   767                              <1> 	;cmp cx, ax		  ; mday = # of days passed from 1/1
   768                              <1> 	; 21/02/2022
   769 00000459 39C1                <1> 	cmp ecx, eax
   770 0000045B 7319                <1> 	jnb short L3
   771                              <1> 	;dec dx			  ; month = month - 1
   772                              <1> 	; 21/02/2022
   773 0000045D 4A                  <1> 	dec edx
   774                              <1> 	;shl dx, 1 
   775 0000045E D1E2                <1> 	shl edx, 1 ; 21/02/2022
   776 00000460 668B82[CA040000]    <1> 	mov ax, [edx+DMonth] 	  ; # elapsed days at 1st of month
   777                              <1> 	;shr dx, 1		  ; dx = month - 1 (0 to 11)
   778 00000467 D1EA                <1> 	shr edx, 1 ; 21/02/2022
   779 00000469 6683FA01            <1> 	cmp dx, 1		  ; if month > 2 and year mod 4  = 0	
   780 0000046D 76EA                <1> 	jna short L2		  ; then mday = mday + 1
   781 0000046F 08DB                <1> 	or bl, bl		  ; if past 2/29 and leap year then
   782 00000471 75E6                <1> 	jnz short L2		  ; add leap day (to mday)
   783                              <1> 	;inc ax			  ; mday = mday + 1
   784                              <1> 	; 21/02/2022
   785 00000473 40                  <1> 	inc eax
   786 00000474 EBE3                <1> 	jmp short L2
   787                              <1> L3:
   788                              <1> 	;inc dx 		  ; -> dx = month, 1 to 12
   789                              <1> 	; 21/02/2022
   790 00000476 42                  <1> 	inc edx
   791 00000477 668915[C4040000]    <1> 	mov [month], dx
   792                              <1> 	;sub cx, ax		  ; day = jday - mday + 1	
   793                              <1> 	;inc cx 			  
   794                              <1> 	; 21/02/2022
   795 0000047E 29C1                <1> 	sub ecx, eax
   796 00000480 41                  <1> 	inc ecx	
   797 00000481 66890D[C2040000]    <1> 	mov [day], cx
   798                              <1> 	
   799                              <1> 	; eax, ebx, ecx, edx are changed at return
   800                              <1> 	; output ->
   801                              <1> 	; [year], [month], [day], [hour], [minute], [second]
   802                              <1> 	; [yday] -> 24/11/2013
   803                              <1> 	; [wday] -> 24/11/2013
   804                              <1> 	;
   805                              <1> 	; 24/11/2013
   806 00000488 66A1[C8040000]      <1> 	mov ax, [wday] ; [iday]
   807                              <1> 	;xor dx, dx
   808 0000048E 31D2                <1> 	xor edx, edx ; 21/02/2022
   809 00000490 6683C004            <1> 	add ax, 4
   810                              <1> 	; NOTE: January 1, 1970 was THURSDAY
   811                              <1> 	; ch = 0
   812 00000494 B107                <1> 	mov cl, 7
   813 00000496 66F7F1              <1> 	div cx
   814 00000499 668915[C8040000]    <1> 	mov [wday], dx ; week of the day,  0 to 6 
   815                              <1> 	; 0 = sunday ... 6 = saturday
   816                              <1> 	;mov word [isday], 0
   817                              <1> 
   818 000004A0 C3                  <1> 	retn
   819                              <1> 
   820                              <1> ;sunday:
   821                              <1> 	; sunday(at, ad)
   822                              <1> 	; 	int *at;
   823                              <1> 	;	 {
   824                              <1> 	; 	register int *t, d;
   825                              <1> 	; 	t = at;
   826                              <1> 	; 	d = ad;
   827                              <1> 	; 	d = ad + dysize(t[YEAR]) - 365;
   828                              <1> 	; 	return(d - (d - t[YDAY] + t[WDAY] + 700) % 7);
   829                              <1> 	; 	}
   830                              <1> 
   831                              <1> 	;mov	dx, [year]
   832                              <1> 	;call	dysize
   833                              <1> 	;sub	ax, 365
   834                              <1> 	; add 	cx, ax
   835                              <1> ;	test	word [year], 11b
   836                              <1> ;	jnz	short sunday1
   837                              <1> 	; CX = 119 (77h) or CX = 303 (12Fh)
   838                              <1> 	;inc	cx
   839                              <1> ;	inc	cl
   840                              <1> ;sunday1:
   841                              <1> ;	mov	ax, cx
   842                              <1> ;	add	ax, [wday]
   843                              <1> 	;adc	ax, 700
   844                              <1> ;	add	ax, 700
   845                              <1> ;	sub	ax, [yday]
   846                              <1> 	;xor	dx, dx
   847                              <1> ;	mov	bx, 7
   848                              <1> 	;div	bx
   849                              <1> ;	div	bl
   850                              <1> ;	sub	cx, bx
   851                              <1> ;	retn
   852                              <1> 
   853                              <1> ;dysize:
   854                              <1> ; dysize(y)
   855                              <1> ;	{
   856                              <1> ;	if((y%4) == 0)
   857                              <1> ;		return(366);
   858                              <1> ;	return(365);
   859                              <1> ;	}
   860                              <1> 
   861                              <1> ;	mov 	ax, 365	
   862                              <1> ;	test 	dx, 11b
   863                              <1> ;	jnz 	short dysize1
   864                              <1> ;	;inc 	ax
   865 000004A1 FEC0                <1> 	inc 	al			
   866                              <1> ;dysize1:	
   867                              <1> ;	retn 
   868                              <1> 
   869                              <1> numb:   ; AX = 0 to 99
   870                              <1> 	;
   871                              <1> 	; numb(acp, n)
   872                              <1> 	; {
   873                              <1> 	;	register char *cp;
   874                              <1> 	;
   875                              <1> 	;	cp = acp;
   876                              <1> 	;	cp++;
   877                              <1> 	;	if (n>=10)
   878                              <1> 	;	   *cp++ = (n/10)%10 + '0';
   879                              <1> 	;	else
   880                              <1> 	;	   *cp++ = ' ';
   881                              <1> 	;	*cp++ = n%10 + '0';
   882                              <1> 	;	return(cp);
   883                              <1> 	; }
   884                              <1> 	;
   885                              <1> 	;mov	cl, 10
   886 000004A3 6683F80A            <1> 	cmp 	ax, 10
   887 000004A7 7306                <1> 	jnb	short nb1
   888 000004A9 88C4                <1> 	mov	ah, al
   889 000004AB 30C0                <1> 	xor	al, al ; 0
   890 000004AD EB04                <1> 	jmp	short nb2
   891                              <1> nb1:	
   892 000004AF F6F1                <1> 	div	cl
   893 000004B1 88E2                <1> 	mov	dl, ah
   894                              <1> 	
   895                              <1> nb2:	
   896 000004B3 0430                <1> 	add	al, '0'
   897 000004B5 AA                  <1> 	stosb	; digit 1
   898 000004B6 88E0                <1> 	mov	al, ah
   899 000004B8 0430                <1> 	add	al, '0'
   900 000004BA AA                  <1> 	stosb	; digit 2
   901 000004BB C3                  <1> 	retn
   902                              <1> 
   903                              <1> ;;; DATA
   904                              <1> 
   905                              <1> ;daylight: db 1 ; int daylight 1; /* Allow daylight conversion */
   906                              <1> ;nixonflg: db 0 ; int nixonflg 0; /* Daylight time all year around */
   907                              <1> ;daylbegin: dw 0
   908                              <1> ;daylend: dw 0
   909                              <1> 
   910                              <1> ct:
   911                              <1> ; 24/11/2013 (re-order)
   912                              <1> ;
   913                              <1> ; Retro UNIX 8086 v1 - UNIX.ASM
   914                              <1> ; 09/04/2013 epoch variables
   915                              <1> ; Retro UNIX 8086 v1 Prototype: UNIXCOPY.ASM, 10/03/2013
   916                              <1> ;
   917                              <1> 
   918 000004BC 0000                <1> second: dw 0
   919 000004BE 0000                <1> minute: dw 0
   920 000004C0 0000                <1> hour: dw 0
   921 000004C2 0100                <1> day: dw 1
   922 000004C4 0100                <1> month: dw 1
   923 000004C6 B207                <1> year: dw 1970
   924 000004C8 0000                <1> wday: dw 0 ; 24/11/2013
   925                              <1> ;yday: dw 0 ; 24/11/2013
   926                              <1> ;isday: dw 0 ; 24/11/2013
   927                              <1> 
   928                              <1> DMonth:
   929 000004CA 0000                <1> dw 0
   930 000004CC 1F00                <1> dw 31
   931 000004CE 3B00                <1> dw 59
   932 000004D0 5A00                <1> dw 90
   933 000004D2 7800                <1> dw 120
   934 000004D4 9700                <1> dw 151
   935 000004D6 B500                <1> dw 181
   936 000004D8 D400                <1> dw 212
   937 000004DA F300                <1> dw 243
   938 000004DC 1101                <1> dw 273
   939 000004DE 3001                <1> dw 304
   940 000004E0 4E01                <1> dw 334
   941                              <1> 
   942                              <1> ;ncp0: db "Day Mon 00 00:00:00 1970", 0, 0
   943 000004E2 53756E204D6F6E2054- <1> ncp1: db "Sun Mon Tue Wed Thu Fri Sat "
   943 000004EB 756520576564205468- <1>
   943 000004F4 752046726920536174- <1>
   943 000004FD 20                  <1>
   944 000004FE 4A616E20466562204D- <1> ncp2: db "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec "
   944 00000507 617220417072204D61- <1>
   944 00000510 79204A756E204A756C- <1>
   944 00000519 204175672053657020- <1>
   944 00000522 4F6374204E6F762044- <1>
   944 0000052B 656320              <1>
   945                              <1> 
   946                              <1> cbuf: 	; char cbuf[26]
   947                              <1> 	;times 26 db 0
   948                              <1> 	; 25/02/2022
   949 0000052E 00<rep 1Bh>         <1> 	times 27 db 0	
   950                              <1> 
   951                              <1> ;; ctime.c (Unix v5)
   952                              <1> ;
   953                              <1> ;#
   954                              <1> ;/*
   955                              <1> ; * This routine converts time as follows.
   956                              <1> ; * The epoch is 0000 Jan 1 1970 GMT.
   957                              <1> ; * The argument time is in seconds since then.
   958                              <1> ; * The localtime(t) entry returns a pointer to an array
   959                              <1> ; * containing
   960                              <1> ; *  seconds (0-59)
   961                              <1> ; *  minutes (0-59)
   962                              <1> ; *  hours (0-23)
   963                              <1> ; *  day of month (1-31)
   964                              <1> ; *  month (0-11)
   965                              <1> ; *  year-1970
   966                              <1> ; *  weekday (0-6, Sun is 0)
   967                              <1> ; *  day of the year
   968                              <1> ; *  daylight savings flag
   969                              <1> ; *
   970                              <1> ; * The routine corrects for daylight saving
   971                              <1> ; * time and will work in any time zone provided
   972                              <1> ; * "timezone" is adjusted to the difference between
   973                              <1> ; * Greenwich and local standard time (measured in seconds).
   974                              <1> ; * In places like Michigan "daylight" must
   975                              <1> ; * be initialized to 0 to prevent the conversion
   976                              <1> ; * to daylight time.
   977                              <1> ; *
   978                              <1> ; * "nixonflg,", if set to 1, will
   979                              <1> ; * cause daylight savings time all year around
   980                              <1> ; * independently of "daylight".
   981                              <1> ; *
   982                              <1> ; * The routine does not work
   983                              <1> ; * in Saudi Arabia which runs on Solar time.
   984                              <1> ; *
   985                              <1> ; * asctime(tvec))
   986                              <1> ; * where tvec is produced by localtime
   987                              <1> ; * returns a ptr to a character string
   988                              <1> ; * that has the ascii time in the form
   989                              <1> ; *	Thu Jan 01 00:00:00 1970n0\; *	01234567890123456789012345
   991                              <1> ; *	0	  1	    2
   992                              <1> ; *
   993                              <1> ; * ctime(t) just calls localtime, then asctime.
   994                              <1> ; */
   995                              <1> ;char	cbuf[26];
   996                              <1> ;int	dmsize[12]
   997                              <1> ;{
   998                              <1> ;	31,
   999                              <1> ;	28,
  1000                              <1> ;	31,
  1001                              <1> ;	30,
  1002                              <1> ;	31,
  1003                              <1> ;	30,
  1004                              <1> ;	31,
  1005                              <1> ;	31,
  1006                              <1> ;	30,
  1007                              <1> ;	31,
  1008                              <1> ;	30,
  1009                              <1> ;	31
  1010                              <1> ;};
  1011                              <1> ;
  1012                              <1> ;int timezone	5*60*60;
  1013                              <1> ;int tzname[]
  1014                              <1> ;{
  1015                              <1> ;	"EST",
  1016                              <1> ;	"EDT",
  1017                              <1> ;};
  1018                              <1> ;int	daylight 1;	/* Allow daylight conversion */
  1019                              <1> ;int	nixonflg 0;	/* Daylight time all year around */
  1020                              <1> ;
  1021                              <1> ;#define SEC	0
  1022                              <1> ;#define MIN	1
  1023                              <1> ;#define HOUR	2
  1024                              <1> ;#define MDAY	3 
  1025                              <1> ;#define MON	4
  1026                              <1> ;#define YEAR	5
  1027                              <1> ;#define WDAY	6
  1028                              <1> ;#define YDAY	7
  1029                              <1> ;#define ISDAY	8
  1030                              <1> ;
  1031                              <1> ;ctime(at)
  1032                              <1> ;int *at;
  1033                              <1> ;{
  1034                              <1> ;	return(asctime(localtime(at)));
  1035                              <1> ;}
  1036                              <1> ;
  1037                              <1> ;localtime(tim)
  1038                              <1> ;int tim[];
  1039                              <1> ;{
  1040                              <1> ;	register int *t, *ct, dayno;
  1041                              <1> ;	int daylbegin, daylend;
  1042                              <1> ;	int copyt[2];
  1043                              <1> ;
  1044                              <1> ;	t = copyt;
  1045                              <1> ;	t[0] = tim[0];
  1046                              <1> ;	t[1] = tim[1];
  1047                              <1> ;	dpadd(t, -timezone);
  1048                              <1> ;	ct = gmtime(t);
  1049                              <1> ;	dayno = ct[YDAY];
  1050                              <1> ;	if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
  1051                              <1> ;	    dayno==5 && ct[HOUR]>=2))) {
  1052                              <1> ;		daylight =| 1;
  1053                              <1> ;		daylbegin = -1;
  1054                              <1> ;		daylend = 367;
  1055                              <1> ;	} else {
  1056                              <1> ;		daylbegin = sunday(ct, 119);	/* last Sun in Apr */
  1057                              <1> ;		daylend = sunday(ct, 303);	/* last Sun in Oct */
  1058                              <1> ;	}
  1059                              <1> ;	if (daylight &&
  1060                              <1> ;	    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
  1061                              <1> ;	    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
  1062                              <1> ;		dpadd(t, 1*60*60);
  1063                              <1> ;		ct = gmtime(t);
  1064                              <1> ;		ct[ISDAY]++;
  1065                              <1> ;	}
  1066                              <1> ;	return(ct);
  1067                              <1> ;}
  1068                              <1> ;
  1069                              <1> ;sunday(at, ad)
  1070                              <1> ;int *at;
  1071                              <1> ;{
  1072                              <1> ;	register int *t, d;
  1073                              <1> ;
  1074                              <1> ;	t = at;
  1075                              <1> ;	d = ad;
  1076                              <1> ;	d = ad + dysize(t[YEAR]) - 365;
  1077                              <1> ;	return(d - (d - t[YDAY] + t[WDAY] + 700) % 7);
  1078                              <1> ;}
  1079                              <1> ;
  1080                              <1> ;gmtime(tim)
  1081                              <1> ;int tim[];
  1082                              <1> ;{
  1083                              <1> ;	register int d0, d1;
  1084                              <1> ;	register *tp;
  1085                              <1> ;	static xtime[9];
  1086                              <1> ;	extern int ldivr;
  1087                              <1> ;
  1088                              <1> ;	/*
  1089                              <1> ;	 * break initial number into
  1090                              <1> ;	 * multiples of 8 hours.
  1091                              <1> ;	 * (28800 = 60*60*8)
  1092                              <1> ;	 */
  1093                              <1> ;
  1094                              <1> ;	d0 = ldiv(tim[0], tim[1], 28800);
  1095                              <1> ;	d1 = ldivr;
  1096                              <1> ;	tp = &xtime[0];
  1097                              <1> ;
  1098                              <1> ;	/*
  1099                              <1> ;	 * generate hours:minutes:seconds
  1100                              <1> ;	 */
  1101                              <1> ;
  1102                              <1> ;	*tp++ = d1%60;
  1103                              <1> ;	d1 =/ 60;
  1104                              <1> ;	*tp++ = d1%60;
  1105                              <1> ;	d1 =/ 60;
  1106                              <1> ;	d1 =+ (d0%3)*8;
  1107                              <1> ;	d0 =/ 3;
  1108                              <1> ;	*tp++ = d1;
  1109                              <1> ;
  1110                              <1> ;	/*
  1111                              <1> ;	 * d0 is the day number.
  1112                              <1> ;	 * generate day of the week.
  1113                              <1> ;	 */
  1114                              <1> ;
  1115                              <1> ;	xtime[WDAY] = (d0+4)%7;
  1116                              <1> ;
  1117                              <1> ;	/*
  1118                              <1> ;	 * year number
  1119                              <1> ;	 */
  1120                              <1> ;	for(d1=70; d0 >= dysize(d1); d1++)
  1121                              <1> ;		d0 =- dysize(d1);
  1122                              <1> ;	xtime[YEAR] = d1;
  1123                              <1> ;	xtime[YDAY] = d0;
  1124                              <1> ;
  1125                              <1> ;	/*
  1126                              <1> ;	 * generate month
  1127                              <1> ;	 */
  1128                              <1> ;
  1129                              <1> ;	if (dysize(d1)==366)
  1130                              <1> ;		dmsize[1] = 29;
  1131                              <1> ;	for(d1=0; d0 >= dmsize[d1]; d1++)
  1132                              <1> ;		d0 =- dmsize[d1];
  1133                              <1> ;	dmsize[1] = 28;
  1134                              <1> ;	*tp++ = d0+1;
  1135                              <1> ;	*tp++ = d1;
  1136                              <1> ;	xtime[ISDAY] = 0;
  1137                              <1> ;	return(xtime);
  1138                              <1> ;}
  1139                              <1> ;
  1140                              <1> ;asctime(t)
  1141                              <1> ;int *t;
  1142                              <1> ;{
  1143                              <1> ;	register char *cp, *ncp;
  1144                              <1> ;	register int *tp;
  1145                              <1> ;
  1146                              <1> ;	cp = cbuf;
  1147                              <1> ;	for (ncp = "Day Mon 00 00:00:00 1900\n"; *cp++ = *ncp++;);
  1148                              <1> ;	ncp = &"SunMonTueWedThuFriSat"[3*t[6]];
  1149                              <1> ;	cp = cbuf;
  1150                              <1> ;	*cp++ = *ncp++;
  1151                              <1> ;	*cp++ = *ncp++;
  1152                              <1> ;	*cp++ = *ncp++;
  1153                              <1> ;	cp++;
  1154                              <1> ;	tp = &t[4];
  1155                              <1> ;	ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(*tp)*3];
  1156                              <1> ;	*cp++ = *ncp++;
  1157                              <1> ;	*cp++ = *ncp++;
  1158                              <1> ;	*cp++ = *ncp++;
  1159                              <1> ;	cp = numb(cp, *--tp);
  1160                              <1> ;	cp = numb(cp, *--tp+100);
  1161                              <1> ;	cp = numb(cp, *--tp+100);
  1162                              <1> ;	cp = numb(cp, *--tp+100);
  1163                              <1> ;	cp =+ 2;
  1164                              <1> ;	cp = numb(cp, t[YEAR]);
  1165                              <1> ;	return(cbuf);
  1166                              <1> ;}
  1167                              <1> ;
  1168                              <1> ;dysize(y)
  1169                              <1> ;{
  1170                              <1> ;	if((y%4) == 0)
  1171                              <1> ;		return(366);
  1172                              <1> ;	return(365);
  1173                              <1> ;}
  1174                              <1> ;
  1175                              <1> ;
  1176                              <1> ;numb:
  1177                              <1> ;	
  1178                              <1> ;
  1179                              <1> ;numb(acp, n)
  1180                              <1> ;{
  1181                              <1> ;	register char *cp;
  1182                              <1> ;	cp = acp;
  1183                              <1> ;	cp++;
  1184                              <1> ;	if (n>=10)
  1185                              <1> ;		*cp++ = (n/10)%10 + '0';
  1186                              <1> ;	else
  1187                              <1> ;		*cp++ = ' ';
  1188                              <1> ;	*cp++ = n%10 + '0';
  1189                              <1> ;	return(cp);
  1190                              <1> ;}
  1191                              <1> ;
   432                                  ;=================================================================
   433                                  
   434                                  ;-----------------------------------------------------------------
   435                                  ;  data - initialized data
   436                                  ;-----------------------------------------------------------------
   437                                  
   438                                  lpt1:
   439 00000549 2F6465762F6C707200      	db '/dev/lpr', 0
   440                                  
   441                                  program_msg:
   442 00000552 0D0A                    	db  0Dh, 0Ah
   443 00000554 526574726F20554E49-     	db  'Retro UNIX 386 v1 PRINT Utility by Erdogan TAN - 26/06/2022'
   443 0000055D 582033383620763120-
   443 00000566 5052494E5420557469-
   443 0000056F 6C6974792062792045-
   443 00000578 72646F67616E205441-
   443 00000581 4E202D2032362F3036-
   443 0000058A 2F32303232         
   444 0000058F 0D0A00                  	db  0Dh, 0Ah, 0
   445                                  usage_msg:
   446 00000592 0D0A                    	db  0Dh, 0Ah
   447 00000594 55736167653A207072-     	db  'Usage: pr [ -rlcm ] filename1 ... '
   447 0000059D 205B202D726C636D20-
   447 000005A6 5D2066696C656E616D-
   447 000005AF 6531202E2E2E20     
   448 000005B6 0D0A                    	db  0Dh, 0Ah
   449 000005B8 09202020204F707469-     	db  '	    Options: '
   449 000005C1 6F6E733A20         
   450 000005C6 0D0A                    	db  0Dh, 0Ah
   451 000005C8 202020202020202020-     	db  '             -r : 66 lines per page (default option)'
   451 000005D1 202020202D72203A20-
   451 000005DA 3636206C696E657320-
   451 000005E3 706572207061676520-
   451 000005EC 2864656661756C7420-
   451 000005F5 6F7074696F6E29     
   452 000005FC 0D0A                    	db  0Dh, 0Ah	
   453 000005FE 202020202020202020-     	db  '             -l : 78 lines per page'
   453 00000607 202020202D6C203A20-
   453 00000610 3738206C696E657320-
   453 00000619 7065722070616765   
   454 00000621 0D0A                    	db  0Dh, 0Ah
   455 00000623 202020202020202020-     	db  '             -m : modification date (default option)'
   455 0000062C 202020202D6D203A20-
   455 00000635 6D6F64696669636174-
   455 0000063E 696F6E206461746520-
   455 00000647 2864656661756C7420-
   455 00000650 6F7074696F6E29     
   456 00000657 0D0A                    	db  0Dh, 0Ah
   457 00000659 202020202020202020-     	db  '             -c : current date'
   457 00000662 202020202D63203A20-
   457 0000066B 63757272656E742064-
   457 00000674 617465             
   458 00000677 0D0A                    	db  0Dh, 0Ah
   459                                  nextline:
   460 00000679 0D0A00                  	db  0Dh, 0Ah, 0
   461                                  
   462                                  size_pmsg equ usage_msg-(program_msg+1)
   463                                  
   464                                  printer_err_msg:
   465 0000067C 0D0A                    	db 0Dh, 0Ah	
   466 0000067E 5072696E7465722045-     	db "Printer Error !"
   466 00000687 72726F722021       
   467 0000068D 0D0A00                   	db 0Dh, 0Ah, 0  		
   468                                  
   469                                  size_umsg equ printer_err_msg-(usage_msg+1)
   470                                  
   471                                  file_err_msg:
   472 00000690 0D0A                    	db 0Dh, 0Ah	
   473 00000692 46696C65204572726F-     	db "File Error !"
   473 0000069B 722021             
   474 0000069E 0D0A00                   	db 0Dh, 0Ah, 0  
   475                                  
   476                                  EmptyLines:
   477 000006A1 0D0A0D0A0D0A0D0A0D-     	db 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah
   477 000006AA 0A                 
   478 000006AB 2020                    	db 20h, 20h
   479                                  PageHeader:
   480 000006AD 205061676520            	db " Page "
   481                                  
   482 000006B3 42                      rows:	db 66
   483 000006B4 00                      cdatef:	db 0
   484                                  
   485                                  ;-----------------------------------------------------------------
   486                                  ;  bss - uninitialized data
   487                                  ;-----------------------------------------------------------------	
   488                                  
   489 000006B5 90<rep 3h>              align 4
   490                                  
   491                                  bss_start:
   492                                  
   493                                  ABSOLUTE bss_start
   494                                  
   495 000006B8 ??                      argc:	 resb 1
   496 000006B9 ??                      files:	 resb 1
   497 000006BA ????                    pgnumber: resw 1
   498 000006BC ??                      eof:	 resb 1
   499 000006BD ??                      cchar:	 resb 1
   500 000006BE ??                      chr:	 resb 1
   501 000006BF ??                      	 resb 1
   502 000006C0 ????????                mtime:	 resd 1	
   503 000006C4 ????????                prnfnum: resd 1
   504                                  
   505                                  fbuf:
   506                                  txtfnum: 
   507 000006C8 <res 8Ch>               	resb 128+12 ; 26/06/2022
   508                                  stbuf:
   509 00000754 <res 22h>               	resb 34
   510                                  
   511                                  bss_end:
   512                                  
   513                                  ;-----------------------------------------------------------------
   514                                  ; 25/06/2022
   515                                  ;-----------------------------------------------------------------
   516                                  ; Original UNIX v2 - pr (utility) disassembled source code
   517                                  ;-----------------------------------------------------------------
   518                                  
   519                                  ;
   520                                  ; +-------------------------------------------------------------------------+
   521                                  ; |   This file	has been generated by The Interactive Disassembler (IDA)    |
   522                                  ; |	      Copyright	(c) 2013 Hex-Rays, <support@hex-rays.com>	    |
   523                                  ; +-------------------------------------------------------------------------+
   524                                  ;
   525                                  ; File Name   :	C:\Users\Erdoan\Desktop\s2.tar\bin\pr
   526                                  ; Format      :	Binary file
   527                                  ; Base Address:	0000h Range: 4000h - 448Eh Loaded length: 0000048Eh
   528                                  
   529                                  ; Processor	  : PDP11
   530                                  ; Target assembler: Macro-11 Assembler
   531                                  
   532                                  ;.macro .array of,type,cnt,val
   533                                  ;.rept  cnt
   534                                  ; type  val
   535                                  ;.endr
   536                                  ;.endm .array
   537                                  
   538                                  ; ===========================================================================
   539                                  
   540                                  ;; Segment type:	Regular
   541                                  ;.PSECT RAM
   542                                  ;byte_0:		.blkb  40000
   543                                  ;; ---------------------------------------------------------------------------
   544                                  ;
   545                                  ;loc_40000:
   546                                  ;		br	loc_40014
   547                                  ;; ---------------------------------------------------------------------------
   548                                  ;		.word 2216
   549                                  ;		.word 0
   550                                  ;		.word 0
   551                                  ;		.word 0
   552                                  ;		.word 0
   553                                  ;; ---------------------------------------------------------------------------
   554                                  ;
   555                                  ;loc_40014:				
   556                                  ;		trap	33
   557                                  ;; ---------------------------------------------------------------------------
   558                                  ;		.word intr_loc
   559                                  ;; ---------------------------------------------------------------------------
   560                                  ;		mov	(SP)+, argc
   561                                  ;		tst	(SP)+
   562                                  ;		clr	R0
   563                                  ;		trap	34
   564                                  ;; ---------------------------------------------------------------------------
   565                                  ;		.word fnum
   566                                  ;; ---------------------------------------------------------------------------
   567                                  ;		bit	#1, statbuf
   568                                  ;		beq	chmod_err
   569                                  ;		trap	22
   570                                  ;; ---------------------------------------------------------------------------
   571                                  ;		.word ttyx		; "/dev/tty0"
   572                                  ;		.word statbuf
   573                                  ;; ---------------------------------------------------------------------------
   574                                  ;		mov	fnum, R0
   575                                  ;		sub	statbuf, R0
   576                                  ;		add	#60, R0	; '0'
   577                                  ;		movb	R0, ttyx+10
   578                                  ;		trap	17
   579                                  ;; ---------------------------------------------------------------------------
   580                                  ;		.word ttyx		; "/dev/tty0"
   581                                  ;		.word 14
   582                                  ;; ---------------------------------------------------------------------------
   583                                  ;		bcs	chmod_err
   584                                  ;		inc	chmodflg
   585                                  ;
   586                                  ;chmod_err:				
   587                                  ;		clr	fnum
   588                                  ;
   589                                  ;err_cf:					
   590                                  ;		mov	fnum, R0
   591                                  ;		beq	err_cf_next
   592                                  ;		trap	6
   593                                  ;		clr	fnum
   594                                  ;
   595                                  ;err_cf_next:				
   596                                  ;		dec	argc
   597                                  ;		bgt	next_arg
   598                                  ;		jmp	intr_loc
   599                                  ;; ---------------------------------------------------------------------------
   600                                  ;
   601                                  ;next_arg:				
   602                                  ;		mov	(SP)+, R0
   603                                  ;		mov	R0, fname_ptr
   604                                  ;		cmpb	(R0)+, #55 ; '-'
   605                                  ;		bne	open_txt_file
   606                                  ;		cmpb	@R0, #154 ; 'l'
   607                                  ;		bne	case_r
   608                                  ;		mov	#78., rows
   609                                  ;		br	err_cf
   610                                  ;; ---------------------------------------------------------------------------
   611                                  ;
   612                                  ;case_r:					
   613                                  ;		cmpb	@R0, #162 ; 'r'
   614                                  ;		bne	case_m
   615                                  ;		mov	#66., rows
   616                                  ;		br	err_cf
   617                                  ;; ---------------------------------------------------------------------------
   618                                  ;
   619                                  ;case_m:					
   620                                  ;		cmpb	@R0, #155 ; 'm'
   621                                  ;		bne	case_c
   622                                  ;		clr	cdateflg
   623                                  ;		br	err_cf
   624                                  ;; ---------------------------------------------------------------------------
   625                                  ;
   626                                  ;case_c:					
   627                                  ;		cmpb	@R0, #143 ; 'c'
   628                                  ;		bne	open_txt_file
   629                                  ;		inc	cdateflg
   630                                  ;		br	err_cf
   631                                  ;; ---------------------------------------------------------------------------
   632                                  ;
   633                                  ;open_txt_file:				
   634                                  ;		mov	fname_ptr, R0
   635                                  ;		jsr	R5, fopen
   636                                  ;; ---------------------------------------------------------------------------
   637                                  ;		.word fnum
   638                                  ;; ---------------------------------------------------------------------------
   639                                  ;		bcs	err_cf
   640                                  ;		tst	cdateflg
   641                                  ;		beq	get_fmod_time
   642                                  ;		trap	15
   643                                  ;		mov	@#word_177304, mtime_l
   644                                  ;		mov	@#word_177302, mtime_h
   645                                  ;		br	write_pages
   646                                  ;; ---------------------------------------------------------------------------
   647                                  ;
   648                                  ;get_fmod_time:				
   649                                  ;		mov	fnum, R0
   650                                  ;		trap	34
   651                                  ;; ---------------------------------------------------------------------------
   652                                  ;		.word fstatbuf
   653                                  ;; ---------------------------------------------------------------------------
   654                                  ;		mov	i_mtime_l, mtime_l
   655                                  ;		mov	i_mtime_h, mtime_h
   656                                  ;
   657                                  ;write_pages:				
   658                                  ;		clr	pagenumber
   659                                  ;		clr	eof
   660                                  ;		clr	cchar
   661                                  ;
   662                                  ;write_next_page:			
   663                                  ;		call	readf
   664                                  ;		br	err_cf
   665                                  ;; ---------------------------------------------------------------------------
   666                                  ;		mov	#1, R0
   667                                  ;		trap	4
   668                                  ;; ---------------------------------------------------------------------------
   669                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   670                                  ;		.word 2
   671                                  ;; ---------------------------------------------------------------------------
   672                                  ;		mov	#1, R0
   673                                  ;		mov	mtime_l, @#word_177304
   674                                  ;		mov	mtime_h, @#word_177302
   675                                  ;		call	write_hdr_date
   676                                  ;		mov	#1, R0
   677                                  ;		trap	4
   678                                  ;; ---------------------------------------------------------------------------
   679                                  ;		.word PageHeader	; "   Page "
   680                                  ;		.word 2
   681                                  ;; ---------------------------------------------------------------------------
   682                                  ;		inc	pagenumber
   683                                  ;		mov	fname_ptr, R1
   684                                  ;		mov	R1, f_name_ptr
   685                                  ;		mov	#-1, R0
   686                                  ;
   687                                  ;strlen:					
   688                                  ;		inc	R0
   689                                  ;		tstb	(R1)+
   690                                  ;		bne	strlen
   691                                  ;		mov	R0, charcount
   692                                  ;		mov	#1, R0
   693                                  ;		trap	4
   694                                  ;; ---------------------------------------------------------------------------
   695                                  ;f_name_ptr:	.word 40000		
   696                                  ;charcount:	.word 40000		
   697                                  ;; ---------------------------------------------------------------------------
   698                                  ;		mov	#1, R0
   699                                  ;		trap	4
   700                                  ;; ---------------------------------------------------------------------------
   701                                  ;		.word PageHeader+2
   702                                  ;		.word 6
   703                                  ;; ---------------------------------------------------------------------------
   704                                  ;		mov	pagenumber, @#word_177304
   705                                  ;		call	write_pg_num
   706                                  ;		mov	#1, R0
   707                                  ;		trap	4
   708                                  ;; ---------------------------------------------------------------------------
   709                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   710                                  ;		.word 4
   711                                  ;; ---------------------------------------------------------------------------
   712                                  ;		mov	rows, R1
   713                                  ;		sub	#11., R1
   714                                  ;
   715                                  ;write_next_char:			
   716                                  ;		call	get_char
   717                                  ;		call	write_char
   718                                  ;		cmp	R0, #10.
   719                                  ;		bne	write_next_char
   720                                  ;		dec	R1
   721                                  ;		bne	write_next_char
   722                                  ;		mov	#1, R0
   723                                  ;		trap	4
   724                                  ;; ---------------------------------------------------------------------------
   725                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   726                                  ;		.word 5
   727                                  ;; ---------------------------------------------------------------------------
   728                                  ;		br	write_next_page
   729                                  ;; ---------------------------------------------------------------------------
   730                                  ;
   731                                  ;intr_loc:				
   732                                  ;					
   733                                  ;		tst	chmodflg
   734                                  ;		beq	_exit
   735                                  ;		trap	17
   736                                  ;; ---------------------------------------------------------------------------
   737                                  ;		.word ttyx		; "/dev/tty0"
   738                                  ;		.word 15
   739                                  ;; ---------------------------------------------------------------------------
   740                                  ;
   741                                  ;_exit:					
   742                                  ;		trap	1
   743                                  ;
   744                                  ;; =============== SUBROUTINE ================================================
   745                                  ;
   746                                  ;
   747                                  ;write_pg_num:				
   748                                  ;					
   749                                  ;		clr	@#word_177302
   750                                  ;		mov	#10., @#word_177300
   751                                  ;		mov	@#word_177302, -(SP)
   752                                  ;		tst	@#word_177304
   753                                  ;		beq	wrt_pg_num_1
   754                                  ;		call	write_pg_num
   755                                  ;
   756                                  ;wrt_pg_num_1:				
   757                                  ;		mov	(SP)+, R0
   758                                  ;		add	#60, R0	; '0'
   759                                  ;
   760                                  ;write_char:				
   761                                  ;		mov	R0, pn_chr
   762                                  ;		mov	#1, R0
   763                                  ;		trap	4
   764                                  ;; End of function write_pg_num
   765                                  ;
   766                                  ;; ---------------------------------------------------------------------------
   767                                  ;		.word pn_chr
   768                                  ;		.word 1
   769                                  ;; ---------------------------------------------------------------------------
   770                                  ;		mov	pn_chr, R0
   771                                  ;		return
   772                                  ;
   773                                  ;; =============== SUBROUTINE ================================================
   774                                  ;
   775                                  ;
   776                                  ;get_char:				
   777                                  ;					
   778                                  ;		mov	cchar, R0
   779                                  ;		beq	get_char_1
   780                                  ;		clr	cchar
   781                                  ;		return
   782                                  ;; ---------------------------------------------------------------------------
   783                                  ;
   784                                  ;get_char_1:				
   785                                  ;		tst	eof
   786                                  ;		beq	get_next_char
   787                                  ;		mov	#10., R0
   788                                  ;		return
   789                                  ;; ---------------------------------------------------------------------------
   790                                  ;
   791                                  ;get_next_char:				
   792                                  ;		jsr	R5, getc
   793                                  ;; End of function get_char
   794                                  ;
   795                                  ;; ---------------------------------------------------------------------------
   796                                  ;		.word fnum
   797                                  ;; ---------------------------------------------------------------------------
   798                                  ;		bcc	getc_ok
   799                                  ;		mov	PC, eof
   800                                  ;		br	get_char
   801                                  ;; ---------------------------------------------------------------------------
   802                                  ;
   803                                  ;getc_ok:				
   804                                  ;		return
   805                                  ;
   806                                  ;; =============== SUBROUTINE ================================================
   807                                  ;
   808                                  ;
   809                                  ;readf:				
   810                                  ;		call	get_char
   811                                  ;		mov	R0, cchar
   812                                  ;		tst	eof
   813                                  ;		bne	readf_err
   814                                  ;		add	#2, @SP
   815                                  ;
   816                                  ;readf_err:				
   817                                  ;		return
   818                                  ;; End of function readf
   819                                  ;
   820                                  ;; ---------------------------------------------------------------------------
   821                                  ;EmptyLines:	.ascii <12>		
   822                                  ;		.ascii <12>
   823                                  ;		.ascii <12>
   824                                  ;		.ascii <12><12>
   825                                  ;PageHeader:	.ascii \   Page \       
   826                                  ;ttyx:		.ascii \/dev/tty0\<0>   
   827                                  ;		.byte	 0 ;
   828                                  ;rows:		.word 102		
   829                                  ;mtime_l:	.word 0			
   830                                  ;mtime_h:	.word 0			
   831                                  ;argc:		.word 0			
   832                                  ;					
   833                                  ;eof:		.word 0			
   834                                  ;					
   835                                  ;cchar:		.word 0			
   836                                  ;pn_chr:	.word 0			
   837                                  ;					
   838                                  ;pagenumber:	.word 0			
   839                                  ;					
   840                                  ;fnum:		.word 0			
   841                                  ;statbuf:	.word 0			
   842                                  ;		.word 0
   843                                  ;		.word 0
   844                                  ;		.word 0
   845                                  ;fstatbuf:	.word 0			
   846                                  ;		.word 0
   847                                  ;		.word 0
   848                                  ;		.word 0
   849                                  ;		.word 0
   850                                  ;		.word 0
   851                                  ;		.word 0
   852                                  ;		.word 0
   853                                  ;		.word 0
   854                                  ;		.word 0
   855                                  ;		.word 0
   856                                  ;		.word 0
   857                                  ;		.word 0
   858                                  ;		.word 0
   859                                  ;i_mtime_h:	.word 0			
   860                                  ;i_mtime_l:	.word 0			
   861                                  ;i_rsvd:	.word 0
   862                                  ;		.array of .bytes cnt=132 val=0
   863                                  ;chmodflg:	.word 0			
   864                                  ;fname_ptr:	.word 0			
   865                                  ;					
   866                                  ;cdateflg:	.word 0			
   867                                  ;; ---------------------------------------------------------------------------
   868                                  ;
   869                                  ;write_hdr_date:				
   870                                  ;		mov	R1, -(SP)
   871                                  ;		sub	#20, SP
   872                                  ;		mov	R0, R1
   873                                  ;		mov	SP, R0
   874                                  ;		call	calc_date
   875                                  ;		mov	R0, datebufptr
   876                                  ;		mov	R1, R0
   877                                  ;		trap	4
   878                                  ;; ---------------------------------------------------------------------------
   879                                  ;datebufptr:	.word 40000		
   880                                  ;		.word 15.
   881                                  ;; ---------------------------------------------------------------------------
   882                                  ;		add	#16., SP
   883                                  ;		mov	(SP)+, R1
   884                                  ;		return
   885                                  ;; ---------------------------------------------------------------------------
   886                                  ;
   887                                  ;calc_date:				
   888                                  ;		mov	R2, -(SP)
   889                                  ;		mov	R3, -(SP)
   890                                  ;		cmp	@#word_177302, word_41700
   891                                  ;		bcs	loc_41372
   892                                  ;		bhi	loc_41340
   893                                  ;		cmp	@#word_177304, word_41702
   894                                  ;		bcs	loc_41372
   895                                  ;
   896                                  ;loc_41340:				
   897                                  ;		mov	@#word_177302, -(SP)
   898                                  ;		sub	word_41702, @#word_177304
   899                                  ;		sbc	@SP
   900                                  ;		sub	word_41700, @SP
   901                                  ;		mov	(SP)+, @#word_177302
   902                                  ;		mov	#29., february
   903                                  ;
   904                                  ;loc_41372:				
   905                                  ;		mov	#-4, @#word_177314
   906                                  ;		mov	#32274,	@#word_177300
   907                                  ;		mov	@#word_177304, R3
   908                                  ;		mov	@#word_177302, @#word_177304
   909                                  ;		mov	#2, @#word_177314
   910                                  ;		mov	#15., @#word_177300
   911                                  ;		add	#15., R0
   912                                  ;		jsr	R5, divide
   913                                  ;; ---------------------------------------------------------------------------
   914                                  ;		.word 10.
   915                                  ;; ---------------------------------------------------------------------------
   916                                  ;		jsr	R5, divide
   917                                  ;		.word 6
   918                                  ;; ---------------------------------------------------------------------------
   919                                  ;		movb	#72, -(R0) ; ':'
   920                                  ;		jsr	R5, divide
   921                                  ;; ---------------------------------------------------------------------------
   922                                  ;		.word 10.
   923                                  ;; ---------------------------------------------------------------------------
   924                                  ;		jsr	R5, divide
   925                                  ;; ---------------------------------------------------------------------------
   926                                  ;		.word 6
   927                                  ;; ---------------------------------------------------------------------------
   928                                  ;		movb	#72, -(R0) ; ':'
   929                                  ;		mov	R3, @#word_177304
   930                                  ;		mov	#30, @#word_177300
   931                                  ;		mov	@#word_177304, R3
   932                                  ;		mov	@#word_177302, @#word_177304
   933                                  ;		jsr	R5, divide
   934                                  ;; ---------------------------------------------------------------------------
   935                                  ;		.word 10.
   936                                  ;; ---------------------------------------------------------------------------
   937                                  ;		jsr	R5, divide
   938                                  ;; ---------------------------------------------------------------------------
   939                                  ;		.word 10.
   940                                  ;; ---------------------------------------------------------------------------
   941                                  ;		mov	#mdays,	R2
   942                                  ;
   943                                  ;loc_41544:
   944                                  ;		cmp	@R2, R3
   945                                  ;		bgt	loc_41554
   946                                  ;		sub	(R2)+, R3
   947                                  ;		br	loc_41544
   948                                  ;; ---------------------------------------------------------------------------
   949                                  ;
   950                                  ;loc_41554:
   951                                  ;		movb	#40, -(R0) ; ' '
   952                                  ;		sub	#mdays,	R2
   953                                  ;		asl	R2
   954                                  ;		add	#byte_41740, R2
   955                                  ;		inc	R3
   956                                  ;		mov	R3, @#word_177304
   957                                  ;		jsr	R5, divide
   958                                  ;; ---------------------------------------------------------------------------
   959                                  ;		.word 10.
   960                                  ;; ---------------------------------------------------------------------------
   961                                  ;		tst	@#word_177304
   962                                  ;		beq	loc_41630
   963                                  ;		add	#60, @#word_177304 ; '0'
   964                                  ;		movb	@#word_177304, -(R0)
   965                                  ;		br	loc_41634
   966                                  ;; ---------------------------------------------------------------------------
   967                                  ;
   968                                  ;loc_41630:				
   969                                  ;		movb	#40, -(R0) ; ' '
   970                                  ;
   971                                  ;loc_41634:				
   972                                  ;		movb	#40, -(R0) ; ' '
   973                                  ;		movb	-(R2), -(R0)
   974                                  ;		movb	-(R2), -(R0)
   975                                  ;		movb	-(R2), -(R0)
   976                                  ;		mov	(SP)+, R3
   977                                  ;		mov	(SP)+, R2
   978                                  ;		return
   979                                  ;
   980                                  ;; =============== SUBROUTINE ================================================
   981                                  ;
   982                                  ;
   983                                  ;divide:					
   984                                  ;		clr	@#word_177302
   985                                  ;		mov	(R5)+, @#word_177300
   986                                  ;		add	#60, @#word_177302 ; '0'
   987                                  ;		movb	@#word_177302, -(R0)
   988                                  ;		rts	R5
   989                                  ;; End of function divide
   990                                  ;
   991                                  ;; ---------------------------------------------------------------------------
   992                                  ;word_41700:	.word 70310		
   993                                  ;word_41702:	.word 11000		
   994                                  ;mdays:		.word 31.
   995                                  ;february:	.word 28.		
   996                                  ;		.word 31.
   997                                  ;		.word 30.
   998                                  ;		.word 31.
   999                                  ;		.word 30.
  1000                                  ;		.word 31.
  1001                                  ;		.word 31.
  1002                                  ;		.word 30.
  1003                                  ;		.word 31.
  1004                                  ;		.word 30.
  1005                                  ;		.word 999.
  1006                                  ;		.byte 0
  1007                                  ;Jan:		.ascii \Jan;byte_41740:	.byte 0
  1009                                  ;Feb:		.ascii \Feb\<0>
  1010                                  ;Mar:		.ascii \Mar\<0>
  1011                                  ;Apr:		.ascii \Apr\<0>
  1012                                  ;May:		.ascii \May\<0>
  1013                                  ;Jun:		.ascii \Jun\<0>
  1014                                  ;Jul:		.ascii \Jul\<0>
  1015                                  ;Aug:		.ascii \Aug\<0>
  1016                                  ;Sep:		.ascii \Sep\<0>
  1017                                  ;Oct:		.ascii \Oct\<0>
  1018                                  ;Nov:		.ascii \Nov\<0>
  1019                                  ;Dec:		.ascii \Dec;; ---------------------------------------------------------------------------
  1021                                  ;
  1022                                  ;fopen:					
  1023                                  ;		mov	R1, -(SP)
  1024                                  ;		mov	(R5)+, R1
  1025                                  ;		mov	R0, fnameptr
  1026                                  ;		trap	5
  1027                                  ;; ---------------------------------------------------------------------------
  1028                                  ;fnameptr:	.word 40000		
  1029                                  ;		.word 0
  1030                                  ;; ---------------------------------------------------------------------------
  1031                                  ;		bcs	fopen_err
  1032                                  ;		mov	R0, (R1)+
  1033                                  ;		clr	(R1)+
  1034                                  ;		mov	(SP)+, R1
  1035                                  ;		rts	R5
  1036                                  ;; ---------------------------------------------------------------------------
  1037                                  ;
  1038                                  ;fopen_err:				
  1039                                  ;		mov	#-1, @R1
  1040                                  ;		mov	(SP)+, R1
  1041                                  ;		sec
  1042                                  ;		rts	R5
  1043                                  ;; ---------------------------------------------------------------------------
  1044                                  ;		mov	@R5, fbuf
  1045                                  ;		mov	(R5)+, word_42072
  1046                                  ;		jsr	R5, getc
  1047                                  ;; ---------------------------------------------------------------------------
  1048                                  ;word_42072:	.word 40000		
  1049                                  ;; ---------------------------------------------------------------------------
  1050                                  ;		bcc	getw
  1051                                  ;		rts	R5
  1052                                  ;; ---------------------------------------------------------------------------
  1053                                  ;
  1054                                  ;getw:					
  1055                                  ;		mov	R0, -(SP)
  1056                                  ;		jsr	R5, getc
  1057                                  ;; ---------------------------------------------------------------------------
  1058                                  ;fbuf:		.word 40000		
  1059                                  ;; ---------------------------------------------------------------------------
  1060                                  ;		swab	R0
  1061                                  ;		bis	(SP)+, R0
  1062                                  ;		rts	R5
  1063                                  ;; ---------------------------------------------------------------------------
  1064                                  ;
  1065                                  ;getc:					
  1066                                  ;					
  1067                                  ;		mov	R1, -(SP)
  1068                                  ;		mov	(R5)+, R1
  1069                                  ;		dec	2(R1)
  1070                                  ;		bge	getcbuf
  1071                                  ;		mov	R1, R0
  1072                                  ;		add	#6, R0
  1073                                  ;		mov	R0, bufoff
  1074                                  ;		mov	R0, 4(R1)
  1075                                  ;		mov	@R1, R0
  1076                                  ;		trap	3
  1077                                  ;; ---------------------------------------------------------------------------
  1078                                  ;bufoff:	.word 40000		
  1079                                  ;		.word 128.
  1080                                  ;; ---------------------------------------------------------------------------
  1081                                  ;		bcs	getw_err
  1082                                  ;		tst	R0
  1083                                  ;		bne	getw_ok
  1084                                  ;
  1085                                  ;getw_err:				
  1086                                  ;		mov	(SP)+, R1
  1087                                  ;		sec
  1088                                  ;		rts	R5
  1089                                  ;; ---------------------------------------------------------------------------
  1090                                  ;
  1091                                  ;getw_ok:				
  1092                                  ;		dec	R0
  1093                                  ;		mov	R0, 2(R1)
  1094                                  ;
  1095                                  ;getcbuf:				
  1096                                  ;		clr	R0
  1097                                  ;		bisb	@4(R1),	R0
  1098                                  ;		inc	4(R1)
  1099                                  ;		mov	(SP)+, R1
  1100                                  ;		rts	R5
  1101                                  ;; ---------------------------------------------------------------------------
  1102                                  ;
  1103                                  ;; end of 'RAM'
  1104                                  ;
  1105                                  ;		.END
