1 ; **************************************************************************** 2 ; PLAYER.ASM - VIA VT8233 .wav player for DOS. PLAYER.COM 3 ; ---------------------------------------------------------------------------- 4 ; Last Update: 24/03/2017 5 ; ---------------------------------------------------------------------------- 6 ; Beginning: 07/11/2016 7 ; ---------------------------------------------------------------------------- 8 ; Assembler: NASM version 2.11 (29/11/2016) 9 ; ---------------------------------------------------------------------------- 10 ; Derived from '.wav file player for DOS' Jeff Leyda, Sep 02, 2002 11 ; **************************************************************************** 12 ; Erdogan Tan (07/11/2016) 13 14 [BITS 16] 15 16 [ORG 100h] 17 18 %include 'constant.inc' 1 <1> ;constants of stuff that seem hard to remember at times. 2 <1> 3 <1> TRUE EQU 1 4 <1> FALSE EQU 0 5 <1> 6 <1> ENABLED EQU 1 7 <1> DISABLED EQU 0 8 <1> 9 <1> BIT0 EQU 1 10 <1> BIT1 EQU 2 11 <1> BIT2 EQU 4 12 <1> BIT3 EQU 8 13 <1> BIT4 EQU 10h 14 <1> BIT5 EQU 20h 15 <1> BIT6 EQU 40h 16 <1> BIT7 EQU 80h 17 <1> BIT8 EQU 100h 18 <1> BIT9 EQU 200h 19 <1> BIT10 EQU 400h 20 <1> BIT11 EQU 800h 21 <1> BIT12 EQU 1000h 22 <1> BIT13 EQU 2000h 23 <1> BIT14 EQU 4000h 24 <1> BIT15 EQU 8000h 25 <1> BIT16 EQU 10000h 26 <1> BIT17 EQU 20000h 27 <1> BIT18 EQU 40000h 28 <1> BIT19 EQU 80000h 29 <1> BIT20 EQU 100000h 30 <1> BIT21 EQU 200000h 31 <1> BIT22 EQU 400000h 32 <1> BIT23 EQU 800000h 33 <1> BIT24 EQU 1000000h 34 <1> BIT25 EQU 2000000h 35 <1> BIT26 EQU 4000000h 36 <1> BIT27 EQU 8000000h 37 <1> BIT28 EQU 10000000h 38 <1> BIT29 EQU 20000000h 39 <1> BIT30 EQU 40000000h 40 <1> BIT31 EQU 80000000h 41 <1> 42 <1> ;special characters 43 <1> NUL EQU 0 44 <1> NULL EQU 0 45 <1> BELL EQU 07 46 <1> BS EQU 08 47 <1> TAB EQU 09 48 <1> LF EQU 10 49 <1> CR EQU 13 50 <1> ESCAPE EQU 27 ;ESC is a reserved word.... 51 <1> 52 <1> 53 <1> ;file stuff 54 <1> READONLY EQU BIT0 55 <1> HIDDEN EQU BIT1 56 <1> SYSTEM EQU BIT2 57 <1> VOLUME EQU BIT3 ;ignored for file access 58 <1> DIRECTORY EQU BIT4 ;must be 0 for file access 59 <1> ARCHIVE EQU BIT5 60 <1> SHAREABLE EQU BIT7 ;for novell networks 61 <1> OPEN EQU 2 ; open existing file 62 <1> CREATE EQU 1 ; create new file 63 <1> 64 <1> 65 <1> ; PCI equates 66 <1> ; PCI function address (PFA) 67 <1> ; bit 31 = 1 68 <1> ; bit 23:16 = bus number (0-255) 69 <1> ; bit 15:11 = device number (0-31) 70 <1> ; bit 10:8 = function number (0-7) 71 <1> ; bit 7:0 = register number (0-255) 72 <1> 73 <1> IO_ADDR_MASK EQU 0FFFEh ; mask off bit 0 for reading BARs 74 <1> PCI_INDEX_PORT EQU 0CF8h 75 <1> PCI_DATA_PORT EQU 0CFCh 76 <1> PCI32 EQU BIT31 ; bitflag to signal 32bit access 77 <1> PCI16 EQU BIT30 ; bitflag for 16bit access 78 <1> 79 <1> PCI_FN0 EQU 0 << 8 80 <1> PCI_FN1 EQU 1 << 8 81 <1> PCI_FN2 EQU 2 << 8 82 <1> PCI_FN3 EQU 3 << 8 83 <1> PCI_FN4 EQU 4 << 8 84 <1> PCI_FN5 EQU 5 << 8 85 <1> PCI_FN6 EQU 6 << 8 86 <1> PCI_FN7 EQU 7 << 8 87 <1> 88 <1> PCI_CMD_REG EQU 04h ; reg 04, command reg 89 <1> IO_ENA EQU BIT0 ; i/o decode enable 90 <1> MEM_ENA EQU BIT1 ; memory decode enable 91 <1> BM_ENA EQU BIT2 ; bus master enable 19 %include 'codec.inc' ; 28/11/2016 1 <1> ;Codec registers. 2 <1> ; 3 <1> ;Not all codecs are created equal. Refer to the spec for your specific codec. 4 <1> ; 5 <1> ;All registers are 16bits wide. Access to codec registers over the AC97 link 6 <1> ;is defined by the OEM. 7 <1> ; 8 <1> ;Secondary codec's are accessed by ORing in BIT7 of all register accesses. 9 <1> ; 10 <1> 11 <1> ; each codec/mixer register is 16bits 12 <1> 13 <1> CODEC_RESET_REG equ 00 ; reset codec 14 <1> CODEC_MASTER_VOL_REG equ 02 ; master volume 15 <1> CODEC_HP_VOL_REG equ 04 ; headphone volume 16 <1> CODEC_MASTER_MONO_VOL_REG equ 06 ; master mono volume 17 <1> CODEC_MASTER_TONE_REG equ 08 ; master tone (R+L) 18 <1> CODEC_PCBEEP_VOL_REG equ 0ah ; PC beep volume 19 <1> CODEC_PHONE_VOL_REG equ 0bh ; phone volume 20 <1> CODEC_MIC_VOL_REG equ 0eh ; MIC volume 21 <1> CODEC_LINE_IN_VOL_REG equ 10h ; line input volume 22 <1> CODEC_CD_VOL_REG equ 12h ; CD volume 23 <1> CODEC_VID_VOL_REG equ 14h ; video volume 24 <1> CODEC_AUX_VOL_REG equ 16h ; aux volume 25 <1> CODEC_PCM_OUT_REG equ 18h ; PCM output volume 26 <1> CODEC_RECORD_SELECT_REG equ 1ah ; record select input 27 <1> CODEC_RECORD_VOL_REG equ 1ch ; record volume 28 <1> CODEC_RECORD_MIC_VOL_REG equ 1eh ; record mic volume 29 <1> CODEC_GP_REG equ 20h ; general purpose 30 <1> CODEC_3D_CONTROL_REG equ 22h ; 3D control 31 <1> ; 24h is reserved 32 <1> CODEC_POWER_CTRL_REG equ 26h ; powerdown control 33 <1> CODEC_EXT_AUDIO_REG equ 28h ; extended audio 34 <1> CODEC_EXT_AUDIO_CTRL_REG equ 2ah ; extended audio control 35 <1> CODEC_PCM_FRONT_DACRATE_REG equ 2ch ; PCM out sample rate 36 <1> CODEC_PCM_SURND_DACRATE_REG equ 2eh ; surround sound sample rate 37 <1> CODEC_PCM_LFE_DACRATE_REG equ 30h ; LFE sample rate 38 <1> CODEC_LR_ADCRATE_REG equ 32h ; PCM in sample rate 39 <1> CODEC_MIC_ADCRATE_REG equ 34h ; mic in sample rate 40 <1> 41 <1> ; registers 36-7a are reserved on the ICH 42 <1> 43 <1> CODEC_VENDORID1_REG equ 7ch ; codec vendor ID 1 44 <1> CODEC_VENDORID2_REG equ 7eh ; codec vendor ID 2 45 <1> 46 <1> ; Mixer registers 0 through 51h reside in the ICH and are not forwarded over 47 <1> ; the AC97 link to the codec, which I think is a little weird. Looks like 48 <1> ; the ICH makes it so you don't need a fully functional codec to play audio? 49 <1> ; 50 <1> ; whenever 2 codecs are present in the system, use BIT7 to access the 2nd 51 <1> ; set of registers, ie 80h-feh 52 <1> 53 <1> PRIMARY_CODEC equ 0 ; 0-7F for primary codec 54 <1> SECONDARY_CODEC equ BIT7 ; 80-8f registers for 2ndary 55 <1> 56 <1> SAMPLE_RATE_441khz equ 44100 ; 44.1Khz (cd quality) rate 57 <1> 58 <1> ; each buffer descriptor BAR holds a pointer which has entries to the buffer 59 <1> ; contents of the .WAV file we're going to play. Each entry is 8 bytes long 60 <1> ; (more on that later) and can contain 32 entries total, so each BAR is 61 <1> ; 256 bytes in length, thus: 62 <1> 63 <1> BDL_SIZE equ 32*8 ; Buffer Descriptor List size 64 <1> INDEX_MASK equ 31 ; indexes must be 0-31 65 <1> 66 <1> ; 67 <1> ; Buffer Descriptors List 68 <1> ; As stated earlier, each buffer descriptor list is a set of (up to) 32 69 <1> ; descriptors, each 8 bytes in length. Bytes 0-3 of a descriptor entry point 70 <1> ; to a chunk of memory to either play from or record to. Bytes 4-7 of an 71 <1> ; entry describe various control things detailed below. 72 <1> ; 73 <1> ; Buffer pointers must always be aligned on a Dword boundry. 74 <1> ; 75 <1> ; 76 <1> 77 <1> IOC equ BIT31 ; Fire an interrupt whenever this 78 <1> ; buffer is complete. 79 <1> 80 <1> BUP equ BIT30 ; Buffer Underrun Policy. 81 <1> ; if this buffer is the last buffer 82 <1> ; in a playback, fill the remaining 83 <1> ; samples with 0 (silence) or not. 84 <1> ; It's a good idea to set this to 1 85 <1> ; for the last buffer in playback, 86 <1> ; otherwise you're likely to get a lot 87 <1> ; of noise at the end of the sound. 88 <1> 89 <1> ; 90 <1> ; Bits 15:0 contain the length of the buffer, in number of samples, which 91 <1> ; are 16 bits each, coupled in left and right pairs, or 32bits each. 92 <1> ; Luckily for us, that's the same format as .wav files. 93 <1> ; 94 <1> ; A value of FFFF is 65536 samples. Running at 44.1Khz, that's just about 95 <1> ; 1.5 seconds of sample time. FFFF * 32bits is 1FFFFh bytes or 128k of data. 96 <1> ; 97 <1> ; A value of 0 in these bits means play no samples. 98 <1> ; 99 <1> 100 <1> ;VIA VT8233 (VT8235) AC97 Codec equates 101 <1> ;(edited by Erdogan Tan, 7/11/2016) 102 <1> 103 <1> ; PCI stuff 104 <1> 105 <1> VIA_VID equ 1106h ; VIA's PCI vendor ID 106 <1> VT8233_DID equ 3059h ; VT8233 (VT8235) device ID 107 <1> 108 <1> PCI_IO_BASE equ 10h 109 <1> AC97_INT_LINE equ 3Ch 110 <1> VIA_ACLINK_CTRL equ 41h 111 <1> VIA_ACLINK_STAT equ 40h 112 <1> VIA_ACLINK_C00_READY equ 01h ; primary codec ready 113 <1> 114 <1> VIA_REG_AC97 equ 80h ; dword 115 <1> 116 <1> VIA_ACLINK_CTRL_ENABLE equ 80h ; 0: disable, 1: enable 117 <1> VIA_ACLINK_CTRL_RESET equ 40h ; 0: assert, 1: de-assert 118 <1> VIA_ACLINK_CTRL_SYNC equ 20h ; 0: release SYNC, 1: force SYNC hi 119 <1> VIA_ACLINK_CTRL_VRA equ 08h ; 0: disable VRA, 1: enable VRA 120 <1> VIA_ACLINK_CTRL_PCM equ 04h ; 0: disable PCM, 1: enable PCM 124 <1> VIA_ACLINK_CTRL_INIT equ (VIA_ACLINK_CTRL_ENABLE + VIA_ACLINK_CTRL_RESET + VIA_ACLINK_CTRL_PCM + VIA_ACLINK_CTRL_VRA) 125 <1> 126 <1> CODEC_AUX_VOL equ 04h 127 <1> VIA_REG_AC97_BUSY equ 01000000h ;(1<<24) 128 <1> VIA_REG_AC97_CMD_SHIFT equ 10h ; 16 129 <1> VIA_REG_AC97_PRIMARY_VALID equ 02000000h ;(1<<25) 130 <1> VIA_REG_AC97_READ equ 00800000h ;(1<<23) 131 <1> VIA_REG_AC97_CODEC_ID_SHIFT equ 1Eh ; 30 132 <1> VIA_REG_AC97_CODEC_ID_PRIMARY equ 0 133 <1> VIA_REG_AC97_DATA_SHIFT equ 0 134 <1> VIADEV_PLAYBACK equ 0 135 <1> VIA_REG_OFFSET_STATUS equ 0 ;; byte - channel status 136 <1> VIA_REG_OFFSET_CONTROL equ 01h ;; byte - channel control 137 <1> VIA_REG_CTRL_START equ 80h ;; WO 138 <1> VIA_REG_CTRL_TERMINATE equ 40h ;; WO 139 <1> VIA_REG_CTRL_PAUSE equ 08h ;; RW 140 <1> VIA_REG_CTRL_RESET equ 01h ;; RW - probably reset? undocumented 141 <1> VIA_REG_OFFSET_STOP_IDX equ 08h ;; dword - stop index, channel type, sample rate 142 <1> VIA8233_REG_TYPE_16BIT equ 200000h ;; RW 143 <1> VIA8233_REG_TYPE_STEREO equ 100000h ;; RW 144 <1> VIA_REG_OFFSET_CURR_INDEX equ 0Fh ;; byte - channel current index (for via8233 only) 145 <1> VIA_REG_OFFSET_TABLE_PTR equ 04h ;; dword - channel table pointer 146 <1> VIA_REG_OFFSET_CURR_PTR equ 04h ;; dword - channel current pointer 147 <1> VIA_REG_OFS_PLAYBACK_VOLUME_L equ 02h ;; byte 148 <1> VIA_REG_OFS_PLAYBACK_VOLUME_R equ 03h ;; byte 149 <1> VIA_REG_CTRL_AUTOSTART equ 20h 150 <1> VIA_REG_CTRL_INT_EOL equ 02h 151 <1> VIA_REG_CTRL_INT_FLAG equ 01h 154 <1> VIA_REG_CTRL_INT equ (VIA_REG_CTRL_INT_FLAG + VIA_REG_CTRL_INT_EOL + VIA_REG_CTRL_AUTOSTART) 155 <1> ; 24/11/2016 156 <1> VIA_REG_STAT_STOPPED equ 04h ;; RWC 157 <1> VIA_REG_STAT_EOL equ 02h ;; RWC 158 <1> VIA_REG_STAT_FLAG equ 01h ;; RWC 159 <1> VIA_REG_STAT_ACTIVE equ 80h ;; RO 160 <1> ; 28/11/2016 161 <1> VIA_REG_STAT_LAST equ 40h ;; RO 162 <1> VIA_REG_STAT_TRIGGER_QUEUED equ 08h ;; RO 163 <1> VIA_REF_CTRL_INT_STOP equ 04h ; Interrupt on Current Index = Stop Index 164 <1> ; and End of Block 20 21 _STARTUP: 22 23 ; memory allocation 24 25 00000000 E86D01 call setFree ; deallocate unused DOS mem 26 27 ; allocate 256 bytes of data for DCM_OUT Buffer Descriptor List. (BDL) 28 29 00000003 B81000 mov ax, BDL_SIZE / 16 30 00000006 E87B01 call memAlloc 31 00000009 A3[7E09] mov [BDL_BUFFER], ax ; segment 32 33 ; allocate 2 buffers, 64k each for now. 34 35 0000000C B80010 mov ax, FILESIZE / 16 ; 64k for .WAV file 36 0000000F E87201 call memAlloc 37 00000012 A3[8009] mov [WAV_BUFFER1], ax ; segment 38 39 00000015 B80010 mov ax, FILESIZE / 16 40 00000018 E86901 call memAlloc 41 0000001B A3[8209] mov [WAV_BUFFER2], ax 42 43 ; Detect/reset AC97 44 ; 45 0000001E 66B806115930 mov eax, (VT8233_DID << 16) + VIA_VID 46 00000024 E8E402 call pciFindDevice 47 00000027 7343 jnc short _1 48 49 ; couldn't find the audio device! 50 51 00000029 0E push cs 52 0000002A 1F pop ds 53 0000002B BA[3500] mov dx, noDevMsg 54 0000002E B409 mov ah, 9 55 00000030 CD21 int 21h 56 00000032 E93401 jmp exit 57 58 00000035 4572726F723A20556E- noDevMsg db "Error: Unable to find VIA VT8233 based audio device!",CR,LF,"$" 58 0000003E 61626C6520746F2066- 58 00000047 696E64205649412056- 58 00000050 543832333320626173- 58 00000059 656420617564696F20- 58 00000062 646576696365210D0A- 58 0000006B 24 59 60 _1: 61 ; 12/11/2016 62 ; Erdogan Tan - 8/11/2016 63 ; References: Kolibrios - vt823x.asm (2016) 64 ; VIA VT8235 V-Link South Bridge (VT8235-VIA.PDF)(2002) 65 ; lowlevel.eu - AC97 (2016) 66 ; .wav player for DOS by Jeff Leyda (2002) -this file- 67 ; Linux kernel - via82xx.c (2016) 68 69 ; eax = BUS/DEV/FN 70 ; 00000000BBBBBBBBDDDDDFFF00000000 71 ; edx = DEV/VENDOR 72 ; DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV 73 74 0000006C 66A3[8609] mov [bus_dev_fn], eax 75 00000070 668916[8A09] mov [dev_vendor], edx 76 77 ; init controller 78 00000075 B004 mov al, PCI_CMD_REG ; command register (04h) 79 00000077 E80702 call pciRegRead32 80 81 ; eax = BUS/DEV/FN/REG 82 ; edx = STATUS/COMMAND 83 ; SSSSSSSSSSSSSSSSCCCCCCCCCCCCCCCC 84 0000007A 668916[8E09] mov [stats_cmd], edx 85 86 0000007F B010 mov al, PCI_IO_BASE ; IO base address register (10h) 87 00000081 E8FD01 call pciRegRead32 88 89 00000084 83E2C0 and dx, 0FFC0h ; IO_ADDR_MASK (0FFFE) ? 90 00000087 8916[9209] mov [ac97_io_base], dx 91 92 0000008B B03C mov al, AC97_INT_LINE ; Interrupt line register (3Ch) 93 0000008D E8F101 call pciRegRead32 94 95 00000090 6681E2FF000000 and edx, 0FFh 96 00000097 8816[8409] mov [ac97_int_ln_reg], dl 97 98 ; 28/11/2016 99 ;mov bx, 1 100 0000009B 89D1 mov cx, dx 101 ;shl bx, cl 102 103 ;not bx 104 0000009D E4A1 in al, 0A1h ; irq 8-15 105 0000009F 88C4 mov ah, al 106 000000A1 E421 in al, 21h ; irq 0-7 107 ;and ax, bx ; unmask 108 000000A3 0FB3D0 btr ax, dx ; unmask 109 000000A6 E621 out 21h, al ; enable interrupt (if irq <= 7) 110 000000A8 88E0 mov al, ah 111 000000AA E6A1 out 0A1h, al ; enable interrupt (if irq > 7) 112 ;not bx 113 114 000000AC BAD104 mov dx, 4D1h ;8259 ELCR1 115 000000AF EC in al, dx 116 000000B0 88C4 mov ah, al 117 000000B2 BAD004 mov dx, 4D0h 118 000000B5 EC in al, dx 119 ;or ax, bx 120 000000B6 0FABC8 bts ax, cx 121 000000B9 BAD004 mov dx, 4D0h 122 000000BC EE out dx, al ;set level-triggered mode 123 000000BD 88E0 mov al, ah 124 000000BF BAD104 mov dx, 4D1h 125 000000C2 EE out dx, al ;set level-triggered mode 126 127 ; 24/11/2016 - Erdogan Tan 128 000000C3 89CB mov bx, cx 129 000000C5 8A9F[9809] mov bl, [bx+irq_int] 130 000000C9 C1E302 shl bx, 2 ; * 4 131 132 ; set up interrupt vector 133 ; 30/11/2016 134 000000CC 06 push es 135 000000CD 31C0 xor ax, ax 136 000000CF 8EC0 mov es, ax 137 000000D1 26C707[A308] mov word [es:bx], ac97_int_handler 138 000000D6 8CC8 mov ax, cs 139 000000D8 26894702 mov [es:bx+2], ax 140 000000DC 07 pop es 141 142 ; init AC97 codec 143 _a1: 144 ; 19/03/2017 145 ;mov eax, [bus_dev_fn] 146 ;mov al, VIA_ACLINK_CTRL ; AC link interface control (41h) 147 ;call pciRegRead8 148 149 ;;mov eax, [bus_dev_fn] 150 ;mov al, VIA_ACLINK_STAT ; AC Link interface status (40h) 151 ;call pciRegRead8 152 153 ;movzx eax, dl 154 ;test al, VIA_ACLINK_C00_READY ; 1 ; primary codec ready ? 155 ;jnz short a_2 156 157 000000DD E81A03 call reset_codec 158 000000E0 731E jnc short _a2 ; EAX = 1 159 160 ;test al, VIA_ACLINK_C00_READY 161 ;jnz short _a2 162 163 _codec_err: 164 000000E2 0E push cs 165 000000E3 1F pop ds 166 000000E4 BA[ED00] mov dx, CodecErrMsg 167 000000E7 B409 mov ah, 9 168 000000E9 CD21 int 21h 169 000000EB EB7C jmp exit 170 171 000000ED 436F64656320457272- CodecErrMsg db "Codec Error #" 171 000000F6 6F722023 172 000000FA 3020210D0A24 ErrNo db "0 !", CR,LF,"$" 173 174 _a2: 175 ; eax = 1 176 00000100 E85003 call codec_io_w16 ; w32 177 178 ;call detect_codec 179 180 00000103 E8EB03 call channel_reset 181 182 00000106 E82A06 call write_ac97_dev_info 183 184 ; check the command line for a file to play 185 186 ;push ds 187 00000109 E88100 call processCmdline ; get the filename 188 189 ; open the file 190 0000010C B002 mov al, OPEN ; open existing file 191 0000010E E89C00 call openFile ; no error? ok. 192 ;pop ds 193 00000111 7322 jnc short _gsr 194 195 ; file not found! 196 197 ;push cs 198 ;pop ds 199 00000113 BA[1C01] mov dx, noFileErrMsg 200 00000116 B409 mov ah, 9 201 00000118 CD21 int 21h 202 0000011A EB4D jmp exit 203 204 0000011C 4572726F723A206669- noFileErrMsg db "Error: file not found.",CR,LF,"$" 204 00000125 6C65206E6F7420666F- 204 0000012E 756E642E0D0A24 205 206 _gsr: 207 00000135 E89C00 call getSampleRate ; read the sample rate 208 ; pass it onto codec. 209 00000138 722F jc short exit ; 19/11/2016 - nothing to do 210 211 0000013A A3[9409] mov [sample_rate], ax 212 ; 19/11/2016 213 0000013D 880E[9609] mov [stmo], cl 214 00000141 8816[9709] mov [bps], dl 215 216 00000145 E80A07 call write_sample_rate 217 218 ; setup the Codec (actually mixer registers) 219 00000148 E8F601 call codecConfig ; unmute codec, set rates. 220 0000014B 7307 jnc short _a3 221 222 0000014D 0430 add al, '0' 223 0000014F A2[FA00] mov [ErrNo], al 224 00000152 EB8E jmp short _codec_err 225 226 _a3: 227 228 ; 229 ; position file pointer to start in actual wav data 230 ; MUCH improvement should really be done here to check if sample size is 231 ; supported, make sure there are 2 channels, etc. 232 ; 233 00000154 B442 mov ah, 42h 234 00000156 B000 mov al, 0 ; from start of file 235 00000158 8B1E[7809] mov bx, [filehandle] 236 0000015C 31C9 xor cx, cx 237 0000015E BA2C00 mov dx, 44 ; jump past .wav/riff header 238 00000161 CD21 int 21h 239 240 ; play the .wav file. Most of the good stuff is in here. 241 242 00000163 E8D303 call playWav 243 244 ; close the .wav file and exit. 245 246 00000166 E85600 call closeFile 247 248 exit: 249 00000169 B8004C mov ax, 4c00h 250 0000016C CD21 int 21h 251 252 here: 253 0000016E EBFE jmp short here 254 255 ; MEMALLOC.ASM 256 ;-- SETFREE: Release memory not used ---------------- 257 ;-- Input : ES = address of PSP 258 ;-- Output : none 259 ;-- Register : AX, BX, CL and FLAGS are changed 260 ;-- Info : Since the stack-segment is always the last segment in an 261 ; EXE-file, ES:0000 points to the beginning and SS:SP 262 ; to the end of the program in memory. Through this the 263 ; length of the program can be calculated 264 ; call this routine once at the beginning of the program to free up memory 265 ; assigned to it by DOS. 266 267 setFree: 268 00000170 8CD3 mov bx, ss ;first subtract the two segment addresses 269 00000172 8CC0 mov ax, es ;from each other. The result is 270 00000174 29C3 sub bx, ax ;number of paragraphs from PSP 271 ;to the beginning of the stack 272 00000176 89E0 mov ax, sp ;since the stackpointer is at the end of 273 00000178 B104 mov cl, 4 ;the stack segment, its content indicates 274 0000017A D3E8 shr ax, cl ;the length of the stack 275 0000017C 01C3 add bx, ax ;add to current length 276 0000017E 43 inc bx ;as precaution add another paragraph 277 278 0000017F B44A mov ah, 4ah ;pass new length to DOS 279 00000181 CD21 int 21h 280 281 00000183 C3 retn ;back to caller 282 283 memAlloc: 284 ; input: AX = # of paragraphs required 285 ; output: AX = segment of block to use 286 287 00000184 53 push bx 288 00000185 89C3 mov bx, ax 289 00000187 B448 mov ah, 48h 290 00000189 CD21 int 21h 291 0000018B 5B pop bx 292 0000018C C3 retn 293 294 ; CMDLINE.ASM 295 ; parse the command line 296 ; entry: none 297 ; exit: DS:DX to the 1st supplied item on the command line 298 299 processCmdline: 300 0000018D 53 push bx 301 0000018E 56 push si 302 303 ;mov ah, 51h 304 ;int 21h 305 ;mov ds, bx 306 307 0000018F BE8000 mov si, 80h 308 00000192 0FB61C movzx bx, byte [si] 309 00000195 01DE add si, bx 310 00000197 46 inc si 311 312 00000198 C60400 mov byte [si], NULL ; zero terminate 313 314 0000019B BE8100 mov si, 81h 315 316 cmdlineloop: 317 0000019E AC lodsb 318 319 0000019F 3C00 cmp al, NULL ; found end of line? 320 000001A1 7404 je short exitpc 321 000001A3 3C20 cmp al, ' ' ; found a space? 322 000001A5 74F7 je short cmdlineloop 323 324 ; must be the filename here. 325 exitpc: 326 000001A7 4E dec si ; point to start of filename 327 000001A8 89F2 mov dx, si 328 000001AA 5E pop si 329 000001AB 5B pop bx 330 000001AC C3 retn 331 332 ; FILE.ASM 333 ;open or create file 334 ; 335 ;input: ds:dx-->filename (asciiz) 336 ; al=file Mode (create or open) 337 ;output: none cs:[filehandle] filled 338 ; 339 openFile: 340 000001AD 50 push ax 341 000001AE 51 push cx 342 000001AF B43B mov ah, 3bh ; start with a mode 343 000001B1 00C4 add ah, al ; add in create or open mode 344 000001B3 31C9 xor cx, cx 345 000001B5 CD21 int 21h 346 000001B7 7203 jc short _of1 347 ;mov [cs:filehandle], ax 348 000001B9 A3[7809] mov [filehandle], ax 349 _of1: 350 000001BC 59 pop cx 351 000001BD 58 pop ax 352 000001BE C3 retn 353 354 ; close the currently open file 355 ; input: none, uses cs:[filehandle] 356 closeFile: 357 000001BF 50 push ax 358 000001C0 53 push bx 359 000001C1 833E[7809]FF cmp word [filehandle], -1 360 000001C6 7409 jz short _cf1 361 000001C8 8B1E[7809] mov bx, [filehandle] 362 000001CC B8003E mov ax,3e00h 363 000001CF CD21 int 21h ;close file 364 _cf1: 365 000001D1 5B pop bx 366 000001D2 58 pop ax 367 000001D3 C3 retn 368 369 getSampleRate: 370 ; 08/12/2016 371 ; reads the sample rate from the .wav file. 372 ; entry: none - assumes file is already open 373 ; 19/11/2016 - Erdogan Tan 374 ; exit: ax = sample rate (11025, 22050, 44100, 48000) 375 ; cx = number of channels (mono=1, stereo=2) 376 ; dx = bits per sample (8, 16) 377 378 000001D4 53 push bx 379 380 000001D5 B442 mov ah, 42h 381 000001D7 B000 mov al, 0 ; from start of file 382 000001D9 8B1E[7809] mov bx, [filehandle] 383 000001DD 31C9 xor cx, cx 384 000001DF BA0800 mov dx, 08h ; "WAVE" 385 000001E2 CD21 int 21h 386 387 000001E4 BA[5C09] mov dx, smpRBuff 388 000001E7 B91C00 mov cx, 28 ; 28 bytes 389 000001EA B43F mov ah, 3fh 390 000001EC CD21 int 21h 391 392 000001EE 813E[5C09]5741 cmp word [smpRBuff], 'WA' 393 000001F4 751C jne short gsr_stc 394 395 000001F6 813E[5E09]5645 cmp word [smpRBuff+2], 'VE' 396 000001FC 7514 jne short gsr_stc 397 398 000001FE 833E[6809]01 cmp word [smpRBuff+12], 1 ; Offset 20, must be 1 (= PCM) 399 00000203 750D jne short gsr_stc 400 401 402 00000205 8B0E[6A09] mov cx, [smpRBuff+14] ; return num of channels in CX 403 00000209 A1[6C09] mov ax, [smpRBuff+16] ; return sample rate in AX 404 0000020C 8B16[7609] mov dx, [smpRBuff+26] ; return bits per sample value in DX 405 gsr_retn: 406 00000210 5B pop bx 407 00000211 C3 retn 408 409 gsr_stc: 410 00000212 F9 stc 411 00000213 EBFB jmp short gsr_retn 412 413 %include 'pci.asm' ; 29/11/2016 1 <1> ; PCI device register reader/writers. 2 <1> ; NASM version: Erdogan Tan (29/11/2016) 3 <1> 4 <1> ; 20/03/2017 5 <1> NOT_BIT31 EQU 7FFFFFFFh 6 <1> NOT_PCI32_PCI16 EQU 03FFFFFFFh ; NOT BIT31+BIT30 7 <1> 8 <1> ;=============================================================== 9 <1> ; 8/16/32bit PCI reader 10 <1> ; 11 <1> ; Entry: EAX=PCI Bus/Device/fn/register number 12 <1> ; BIT30 set if 32 bit access requested 13 <1> ; BIT29 set if 16 bit access requested 14 <1> ; otherwise defaults to 8bit read 15 <1> ; 16 <1> ; Exit: DL,DX,EDX register data depending on requested read size 17 <1> ; 18 <1> ; Note: this routine is meant to be called via pciRegRead8, pciRegread16, 19 <1> ; or pciRegRead32, listed below. 20 <1> ; 21 <1> ; Note2: don't attempt to read 32bits of data from a non dword aligned reg 22 <1> ; number. Likewise, don't do 16bit reads from non word aligned reg # 23 <1> ; 24 <1> pciRegRead: 25 00000215 6653 <1> push ebx 26 00000217 6651 <1> push ecx 27 00000219 6689C3 <1> mov ebx, eax ; save eax, dh 28 0000021C 88F1 <1> mov cl, dh 29 <1> 30 0000021E 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; clear out data size request 31 00000224 660D00000080 <1> or eax, BIT31 ; make a PCI access request 32 0000022A 24FC <1> and al, ~3 ; NOT 3 ; force index to be dword 33 <1> 34 0000022C BAF80C <1> mov dx, PCI_INDEX_PORT 35 0000022F 66EF <1> out dx, eax ; write PCI selector 36 <1> 37 00000231 BAFC0C <1> mov dx, PCI_DATA_PORT 38 00000234 88D8 <1> mov al, bl 39 00000236 2403 <1> and al, 3 ; figure out which port to 40 00000238 00C2 <1> add dl, al ; read to 41 <1> 42 <1> ; 20/03/2017 43 0000023A 66F7C3000000C0 <1> test ebx, PCI32+PCI16 44 00000241 7507 <1> jnz short _pregr0 45 00000243 EC <1> in al, dx ; return 8bits of data 46 00000244 88C2 <1> mov dl, al 47 00000246 88CE <1> mov dh, cl ; restore dh for 8 bit read 48 00000248 EB13 <1> jmp short _pregr2 49 <1> _pregr0: 50 0000024A 66F7C300000080 <1> test ebx, PCI32 51 00000251 7505 <1> jnz short _pregr1 52 00000253 ED <1> in ax, dx 53 00000254 89C2 <1> mov dx, ax ; return 16bits of data 54 00000256 EB05 <1> jmp short _pregr2 55 <1> _pregr1: 56 00000258 66ED <1> in eax, dx ; return 32bits of data 57 0000025A 6689C2 <1> mov edx, eax 58 <1> _pregr2: 59 0000025D 6689D8 <1> mov eax, ebx ; restore eax 60 00000260 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; clear out data size request 61 00000266 6659 <1> pop ecx 62 00000268 665B <1> pop ebx 63 0000026A C3 <1> retn 64 <1> 65 <1> pciRegRead8: 66 0000026B 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 8 bit read size 67 00000271 EBA2 <1> jmp short pciRegRead ; call generic PCI access 68 <1> 69 <1> pciRegRead16: 70 00000273 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 16 bit read size 71 00000279 660D00000040 <1> or eax, PCI16 ; call generic PCI access 72 0000027F EB94 <1> jmp short pciRegRead 73 <1> 74 <1> pciRegRead32: 75 00000281 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 32 bit read size 76 00000287 660D00000080 <1> or eax, PCI32 ; call generic PCI access 77 0000028D EB86 <1> jmp pciRegRead 78 <1> 79 <1> ;=============================================================== 80 <1> ; 8/16/32bit PCI writer 81 <1> ; 82 <1> ; Entry: EAX=PCI Bus/Device/fn/register number 83 <1> ; BIT31 set if 32 bit access requested 84 <1> ; BIT30 set if 16 bit access requested 85 <1> ; otherwise defaults to 8bit read 86 <1> ; DL/DX/EDX data to write depending on size 87 <1> ; 88 <1> ; 89 <1> ; note: this routine is meant to be called via pciRegWrite8, pciRegWrite16, 90 <1> ; or pciRegWrite32 as detailed below. 91 <1> ; 92 <1> ; Note2: don't attempt to write 32bits of data from a non dword aligned reg 93 <1> ; number. Likewise, don't do 16bit writes from non word aligned reg # 94 <1> ; 95 <1> pciRegWrite: 96 0000028F 6653 <1> push ebx 97 00000291 6651 <1> push ecx 98 00000293 6689C3 <1> mov ebx, eax ; save eax, edx 99 00000296 6689D1 <1> mov ecx, edx 100 00000299 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; clear out data size request 101 0000029F 660D00000080 <1> or eax, BIT31 ; make a PCI access request 102 000002A5 24FC <1> and al, ~3 ; NOT 3 ; force index to be dword 103 <1> 104 000002A7 BAF80C <1> mov dx, PCI_INDEX_PORT 105 000002AA 66EF <1> out dx, eax ; write PCI selector 106 <1> 107 000002AC BAFC0C <1> mov dx, PCI_DATA_PORT 108 000002AF 88D8 <1> mov al, bl 109 000002B1 2403 <1> and al, 3 ; figure out which port to 110 000002B3 00C2 <1> add dl, al ; write to 111 <1> 112 <1> ; 20/03/2017 113 000002B5 66F7C3000000C0 <1> test ebx, PCI32+PCI16 114 000002BC 7505 <1> jnz short _pregw0 115 000002BE 88C8 <1> mov al, cl ; put data into al 116 000002C0 EE <1> out dx, al 117 000002C1 EB13 <1> jmp short _pregw2 118 <1> _pregw0: 119 000002C3 66F7C300000080 <1> test ebx, PCI32 120 000002CA 7505 <1> jnz short _pregw1 121 000002CC 89C8 <1> mov ax, cx ; put data into ax 122 000002CE EF <1> out dx, ax 123 000002CF EB05 <1> jmp short _pregw2 124 <1> _pregw1: 125 000002D1 6689C8 <1> mov eax, ecx ; put data into eax 126 000002D4 66EF <1> out dx, eax 127 <1> _pregw2: 128 000002D6 6689D8 <1> mov eax, ebx ; restore eax 129 000002D9 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; clear out data size request 130 000002DF 6689CA <1> mov edx, ecx ; restore dx 131 000002E2 6659 <1> pop ecx 132 000002E4 665B <1> pop ebx 133 000002E6 C3 <1> retn 134 <1> 135 <1> pciRegWrite8: 136 000002E7 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 8 bit write size 137 000002ED EBA0 <1> jmp short pciRegWrite ; call generic PCI access 138 <1> 139 <1> pciRegWrite16: 140 000002EF 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 16 bit write size 141 000002F5 660D00000040 <1> or eax, PCI16 ; call generic PCI access 142 000002FB EB92 <1> jmp short pciRegWrite 143 <1> 144 <1> pciRegWrite32: 145 000002FD 6625FFFFFF3F <1> and eax, NOT_PCI32_PCI16 ; set up 32 bit write size 146 00000303 660D00000080 <1> or eax, PCI32 ; call generic PCI access 147 00000309 EB84 <1> jmp pciRegWrite 148 <1> 149 <1> ;=============================================================== 150 <1> ; PCIFindDevice: scan through PCI space looking for a device+vendor ID 151 <1> ; 152 <1> ; Entry: EAX=Device+Vendor ID 153 <1> ; 154 <1> ; Exit: EAX=PCI address if device found 155 <1> ; EDX=Device+Vendor ID 156 <1> ; CY clear if found, set if not found. EAX invalid if CY set. 157 <1> ; 158 <1> ; [old stackless] Destroys: ebx, esi, edi, cl 159 <1> ; 160 <1> pciFindDevice: 161 <1> ;push cx 162 0000030B 6650 <1> push eax 163 <1> ;push esi 164 <1> ;push edi 165 <1> 166 0000030D 6689C6 <1> mov esi, eax ; save off vend+device ID 167 00000310 66BF00FFFF7F <1> mov edi, (80000000h - 100h) ; start with bus 0, dev 0 func 0 168 <1> 169 <1> nextPCIdevice: 170 00000316 6681C700010000 <1> add edi, 100h 171 0000031D 6681FF00F8FF80 <1> cmp edi, 80FFF800h ; scanned all devices? 172 00000324 F9 <1> stc 173 00000325 740C <1> je short PCIScanExit ; not found 174 <1> 175 00000327 6689F8 <1> mov eax, edi ; read PCI registers 176 0000032A E854FF <1> call pciRegRead32 177 0000032D 6639F2 <1> cmp edx, esi ; found device? 178 00000330 75E4 <1> jne short nextPCIdevice 179 00000332 F8 <1> clc 180 <1> 181 <1> PCIScanExit: 182 00000333 9C <1> pushf 183 00000334 66B8FFFFFF7F <1> mov eax, NOT_BIT31 ; 19/03/2017 184 0000033A 6621F8 <1> and eax, edi ; return only bus/dev/fn # 185 0000033D 9D <1> popf 186 <1> 187 <1> ;pop edi 188 <1> ;pop esi 189 0000033E 665A <1> pop edx 190 <1> ;pop ecx 191 00000340 C3 <1> retn 414 %include 'codec.asm' ; 29/11/2016 1 <1> ; codec configuration code. Not much here really. 2 <1> ; NASM version: Erdogan Tan (29/11/2016) 3 <1> 4 <1> ; 24/03/2017 5 <1> ; 20/03/2017 6 <1> ; enable codec, unmute stuff, set output rate to 44.1 7 <1> ; entry: ax = desired sample rate 8 <1> ; 9 <1> codecConfig: 10 <1> ; 15/11/2016 11 <1> ; 14/11/2016 12 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, 'setup_codec', codec.inc) 13 <1> 14 <1> ; 14/11/2016 - Erdogan Tan 15 <1> ; (Ref: Mpxplay, PDSoft, Attila Padar, SC_VIA82.C) 16 <1> ;;; call channel_reset 17 <1> 18 00000341 C606[8509]00 <1> mov byte [err_num], 0 19 <1> 20 00000346 66B802020000 <1> mov eax, 0202h 21 0000034C 66BA02000000 <1> mov edx, CODEC_MASTER_VOL_REG ; 02h ; Line Out 22 00000352 E85A01 <1> call codec_write 23 <1> ;jc cconfig_error 24 <1> 25 00000355 C606[8509]01 <1> mov byte [err_num], 1 26 <1> 27 0000035A 66B802020000 <1> mov eax, 0202h 28 00000360 66BA18000000 <1> mov edx, CODEC_PCM_OUT_REG ; 18h ; Wave Output (Stereo) 29 00000366 E84601 <1> call codec_write 30 <1> ;jc cconfig_error 31 <1> 32 00000369 C606[8509]02 <1> mov byte [err_num], 2 33 <1> 34 <1> ;xor eax, eax 35 0000036E 66B802020000 <1> mov eax, 0202h 36 00000374 66BA04000000 <1> mov edx, CODEC_AUX_VOL ; 04h ; CODEC_HP_VOL_REG ; HeadPhone 37 0000037A E83201 <1> call codec_write 38 <1> ;jc cconfig_error 39 <1> 40 0000037D C606[8509]03 <1> mov byte [err_num], 3 41 <1> 42 00000382 B80800 <1> mov ax, 08h 43 00000385 66BA0C000000 <1> mov edx, 0Ch ; AC97_PHONE_VOL ; TAD Input (Mono) 44 0000038B E82101 <1> call codec_write 45 <1> ;jc short cconfig_error 46 <1> 47 0000038E C606[8509]04 <1> mov byte [err_num], 4 48 <1> 49 00000393 B80808 <1> mov ax, 0808h 50 00000396 66BA10000000 <1> mov edx, CODEC_LINE_IN_VOL_REG ; 10h ; Line Input (Stereo) 51 0000039C E81001 <1> call codec_write 52 <1> ;jc short cconfig_error 53 <1> 54 0000039F C606[8509]05 <1> mov byte [err_num], 5 55 <1> 56 000003A4 B80808 <1> mov ax, 0808h 57 000003A7 66BA12000000 <1> mov edx, CODEC_CD_VOL_REG ; 12h ; CR Input (Stereo) 58 000003AD E8FF00 <1> call codec_write 59 <1> ;jc short cconfig_error 60 <1> 61 000003B0 C606[8509]06 <1> mov byte [err_num], 6 62 <1> 63 000003B5 B80808 <1> mov ax, 0808h 64 000003B8 66BA16000000 <1> mov edx, CODEC_AUX_VOL_REG ; 16h ; Aux Input (Stereo) 65 000003BE E8EE00 <1> call codec_write 66 <1> ;jc short cconfig_error 67 <1> 68 000003C1 C606[8509]07 <1> mov byte [err_num], 7 69 <1> 70 <1> ; Extended Audio Status (2Ah) 71 000003C6 66B82A000000 <1> mov eax, CODEC_EXT_AUDIO_CTRL_REG ; 2Ah 72 000003CC E8B400 <1> call codec_read 73 000003CF 6625FDFF0000 <1> and eax, 0FFFFh - 2 ; clear DRA (BIT1) 74 <1> ;or eax, 1 ; set VRA (BIT0) 75 000003D5 6683C805 <1> or eax, 5 ; VRA (BIT0) & S/PDIF (BIT2) ; 14/11/2016 76 000003D9 66BA2A000000 <1> mov edx, CODEC_EXT_AUDIO_CTRL_REG 77 000003DF E8CD00 <1> call codec_write 78 <1> ;jc short cconfig_error 79 <1> 80 000003E2 C606[8509]08 <1> mov byte [err_num], 8 81 <1> set_sample_rate: 82 000003E7 6631C0 <1> xor eax, eax 83 000003EA A1[9409] <1> mov ax, [sample_rate] 84 000003ED 66BA2C000000 <1> mov edx, CODEC_PCM_FRONT_DACRATE_REG ; 2Ch ; PCM Front DAC Rate 85 <1> ;call codec_write 86 <1> ;retn 87 000003F3 E9B900 <1> jmp codec_write 88 <1> 89 <1> cconfig_error: 90 000003F6 A0[8509] <1> mov al, [err_num] 91 000003F9 C3 <1> retn 92 <1> 93 <1> reset_codec: 94 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 95 000003FA 66A1[8609] <1> mov eax, [bus_dev_fn] 96 000003FE B041 <1> mov al, VIA_ACLINK_CTRL 97 00000400 B2E0 <1> mov dl, VIA_ACLINK_CTRL_ENABLE + VIA_ACLINK_CTRL_RESET + VIA_ACLINK_CTRL_SYNC 98 <1> 99 00000402 E8E2FE <1> call pciRegWrite8 100 <1> 101 00000405 E84200 <1> call delay_100ms ; wait 100 ms 102 <1> _rc_cold: 103 00000408 E80C00 <1> call cold_reset 104 0000040B 7304 <1> jnc short _reset_codec_ok 105 <1> 106 0000040D 6631C0 <1> xor eax, eax ; timeout error 107 00000410 C3 <1> retn 108 <1> 109 <1> _reset_codec_ok: 110 00000411 6631C0 <1> xor eax, eax 111 <1> ;mov al, VIA_ACLINK_C00_READY ; 1 112 00000414 FEC0 <1> inc al 113 00000416 C3 <1> retn 114 <1> 115 <1> cold_reset: 116 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 117 <1> ;mov eax, [bus_dev_fn] 118 <1> ;mov al, VIA_ACLINK_CTRL 119 00000417 30D2 <1> xor dl, dl ; 0 120 00000419 E8CBFE <1> call pciRegWrite8 121 <1> 122 0000041C E82B00 <1> call delay_100ms ; wait 100 ms 123 <1> 124 <1> ;; ACLink on, deassert ACLink reset, VSR, SGD data out 125 <1> ;; note - FM data out has trouble with non VRA codecs !! 126 <1> 127 <1> ;mov eax, [bus_dev_fn] 128 <1> ;mov al, VIA_ACLINK_CTRL 129 <1> 130 0000041F B2CC <1> mov dl, VIA_ACLINK_CTRL_INIT 131 <1> 132 00000421 E8C3FE <1> call pciRegWrite8 133 <1> 134 <1> ; 24/03/2017 135 00000424 B91000 <1> mov cx, 16 ; total 2s 136 <1> _crst_wait: 137 <1> ;mov eax, [bus_dev_fn] 138 00000427 B040 <1> mov al, VIA_ACLINK_STAT 139 00000429 E83FFE <1> call pciRegRead8 140 <1> 141 0000042C F6C201 <1> test dl, VIA_ACLINK_C00_READY 142 0000042F 750A <1> jnz short _crst_ok 143 <1> 144 00000431 51 <1> push cx 145 00000432 E81500 <1> call delay_100ms 146 00000435 59 <1> pop cx 147 <1> 148 00000436 49 <1> dec cx 149 00000437 75EE <1> jnz short _crst_wait 150 <1> 151 <1> _crst_fail: 152 00000439 F9 <1> stc 153 0000043A C3 <1> retn 154 <1> 155 <1> _crst_ok: 156 <1> ; are these necessary ? - 14/11/2016 - Erdogan Tan 157 <1> 158 <1> ;mov eax, [bus_dev_fn] 159 <1> ;mov al, VIA_ACLINK_CTRL 160 0000043B E82DFE <1> call pciRegRead8 161 <1> 162 <1> ;mov eax, [bus_dev_fn] 163 <1> ;mov al, VIA_ACLINK_STAT 164 0000043E E82AFE <1> call pciRegRead8 165 <1> 166 00000441 660FB6C2 <1> movzx eax, dl 167 00000445 2401 <1> and al, VIA_ACLINK_C00_READY ; 1 168 00000447 74F0 <1> jz short _crst_fail 169 <1> 170 00000449 C3 <1> retn 171 <1> 172 <1> delay_100ms: 173 <1> ; 24/03/2017 174 <1> ; wait 100 ms 175 0000044A B91900 <1> mov cx, 25 176 <1> _delay_x_ms: 177 <1> ;push cx 178 0000044D E8C302 <1> call delay1_4ms 179 <1> ;pop cx 180 00000450 E2FB <1> loop _delay_x_ms 181 00000452 C3 <1> retn 182 <1> 183 <1> codec_io_w16: ;w32 184 00000453 8B16[9209] <1> mov dx, [ac97_io_base] 185 00000457 81C28000 <1> add dx, VIA_REG_AC97 186 0000045B 66EF <1> out dx, eax 187 0000045D C3 <1> retn 188 <1> 189 <1> codec_io_r16: ;r32 190 0000045E 8B16[9209] <1> mov dx, [ac97_io_base] 191 00000462 81C28000 <1> add dx, VIA_REG_AC97 192 00000466 66ED <1> in eax, dx 193 00000468 C3 <1> retn 194 <1> 195 <1> ctrl_io_w8: 196 00000469 0316[9209] <1> add dx, [ac97_io_base] 197 0000046D EE <1> out dx, al 198 0000046E C3 <1> retn 199 <1> 200 <1> ctrl_io_r8: 201 0000046F 0316[9209] <1> add dx, [ac97_io_base] 202 00000473 EC <1> in al, dx 203 00000474 C3 <1> retn 204 <1> 205 <1> ctrl_io_w32: 206 00000475 0316[9209] <1> add dx, [ac97_io_base] 207 00000479 66EF <1> out dx, eax 208 0000047B C3 <1> retn 209 <1> 210 <1> ctrl_io_r32: 211 0000047C 0316[9209] <1> add dx, [ac97_io_base] 212 00000480 66ED <1> in eax, dx 213 00000482 C3 <1> retn 214 <1> 215 <1> codec_read: 216 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 217 <1> ; Use only primary codec. 218 <1> ; eax = register 219 00000483 66C1E010 <1> shl eax, VIA_REG_AC97_CMD_SHIFT 220 00000487 660D00008002 <1> or eax, VIA_REG_AC97_PRIMARY_VALID + VIA_REG_AC97_READ 221 <1> 222 0000048D E8C3FF <1> call codec_io_w16 223 <1> 224 <1> ; codec_valid 225 00000490 E83700 <1> call codec_check_ready 226 00000493 7301 <1> jnc short _cr_ok 227 <1> 228 00000495 C3 <1> retn 229 <1> 230 <1> _cr_ok: 231 <1> ; wait 25 ms 232 00000496 E87A02 <1> call delay1_4ms 233 00000499 E87702 <1> call delay1_4ms 234 0000049C E87402 <1> call delay1_4ms 235 0000049F E87102 <1> call delay1_4ms 236 000004A2 E86E02 <1> call delay1_4ms 237 <1> 238 000004A5 E8B6FF <1> call codec_io_r16 239 000004A8 6625FFFF0000 <1> and eax, 0FFFFh 240 000004AE C3 <1> retn 241 <1> 242 <1> codec_write: 243 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 244 <1> ; Use only primary codec. 245 <1> 246 <1> ; eax = data (volume) 247 <1> ; edx = register (mixer register) 248 <1> 249 000004AF 66C1E210 <1> shl edx, VIA_REG_AC97_CMD_SHIFT 250 <1> 251 000004B3 66C1E000 <1> shl eax, VIA_REG_AC97_DATA_SHIFT ; shl eax, 0 252 000004B7 6609C2 <1> or edx, eax 253 <1> 254 000004BA 66B800000000 <1> mov eax, VIA_REG_AC97_CODEC_ID_PRIMARY 255 000004C0 66C1E01E <1> shl eax, VIA_REG_AC97_CODEC_ID_SHIFT 256 000004C4 6609D0 <1> or eax, edx 257 <1> 258 000004C7 E889FF <1> call codec_io_w16 259 <1> ;mov [codec.regs+esi], ax 260 <1> 261 <1> ;call codec_check_ready 262 <1> ;retn 263 <1> ;jmp short _codec_check_ready 264 <1> 265 <1> codec_check_ready: 266 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 267 <1> 268 <1> _codec_check_ready: 269 000004CA 66B914000000 <1> mov ecx, 20 ; total 2s 270 <1> _ccr_wait: 271 000004D0 6651 <1> push ecx 272 <1> 273 000004D2 E889FF <1> call codec_io_r16 274 000004D5 66A900000001 <1> test eax, VIA_REG_AC97_BUSY 275 000004DB 740B <1> jz short _ccr_ok 276 <1> 277 000004DD E86AFF <1> call delay_100ms 278 <1> 279 000004E0 6659 <1> pop ecx 280 <1> 281 000004E2 6649 <1> dec ecx 282 000004E4 75EA <1> jnz short _ccr_wait 283 <1> 284 000004E6 F9 <1> stc 285 000004E7 C3 <1> retn 286 <1> 287 <1> _ccr_ok: 288 000004E8 6659 <1> pop ecx 289 000004EA 6625FFFF0000 <1> and eax, 0FFFFh 290 000004F0 C3 <1> retn 291 <1> 292 <1> channel_reset: 293 <1> ; 14/11/2016 - Erdogan Tan 294 <1> ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 295 000004F1 66BA01000000 <1> mov edx, VIA_REG_OFFSET_CONTROL 296 000004F7 66B849000000 <1> mov eax, VIA_REG_CTRL_PAUSE + VIA_REG_CTRL_TERMINATE + VIA_REG_CTRL_RESET 297 000004FD E869FF <1> call ctrl_io_w8 298 <1> 299 <1> ;mov edx, VIA_REG_OFFSET_CONTROL 300 <1> ;call ctrl_io_r8 301 <1> 302 00000500 66B90C000000 <1> mov ecx, 12 ; 50 ms 303 <1> _ch_rst_wait: 304 00000506 6651 <1> push ecx 305 00000508 E80802 <1> call delay1_4ms 306 0000050B 6659 <1> pop ecx 307 0000050D 6649 <1> dec ecx 308 0000050F 75F5 <1> jnz short _ch_rst_wait 309 <1> 310 <1> ; disable interrupts 311 00000511 66BA01000000 <1> mov edx, VIA_REG_OFFSET_CONTROL 312 00000517 6631C0 <1> xor eax, eax 313 0000051A E84CFF <1> call ctrl_io_w8 314 <1> 315 <1> ; clear interrupts 316 0000051D 66BA00000000 <1> mov edx, VIA_REG_OFFSET_STATUS 317 <1> ;mov eax, 3 318 00000523 66B8FF000000 <1> mov eax, 0FFh ; 14/11/2016 - SC_VIA82.C (Attila Padar) 319 00000529 E83DFF <1> call ctrl_io_w8 320 <1> 321 <1> ; 14/11/2016 (Ref: Attila Padar, Mpxplay, SC_VIA82.C) 322 0000052C 66BA04000000 <1> mov edx, VIA_REG_OFFSET_CURR_PTR 323 00000532 6631C0 <1> xor eax, eax 324 00000535 E83DFF <1> call ctrl_io_w32 325 <1> 326 00000538 C3 <1> retn 415 %include 'via_wav.asm' ; 29/11/2016 1 <1> ; DOS based .WAV player using AC'97 and codec interface. 2 <1> ; --------------------------------------------------------------- 3 <1> ; VIA VT8233 Modification & NASM version: Erdogan Tan (29/11/2016) 4 <1> ; Last Update: 18/02/2017 (by Erdogan Tan) 5 <1> 6 <1> ; player internal variables and other equates. 7 <1> FILESIZE equ 64 * 1024 ; 64k file buffer size. 8 <1> ENDOFFILE equ BIT0 ; flag for knowing end of file 9 <1> 10 <1> ;=========================================================================== 11 <1> ; entry: none. File is already open and [filehandle] filled. 12 <1> ; exit: not until the song is finished or the user aborts. 13 <1> ; 14 <1> playWav: 15 <1> 16 <1> ; clear buffer 2 17 00000539 06 <1> push es 18 0000053A A1[8209] <1> mov ax, [WAV_BUFFER2] 19 0000053D 8EC0 <1> mov es, ax 20 0000053F 29C0 <1> sub ax, ax 21 00000541 89C7 <1> mov di, ax ; 18/02/2017 22 00000543 B90080 <1> mov cx, (FILESIZE/2) 23 00000546 F3AB <1> rep stosw 24 00000548 07 <1> pop es 25 <1> 26 <1> ; load 64k into buffer 1 27 <1> 28 00000549 A1[8009] <1> mov ax, [WAV_BUFFER1] 29 0000054C E81B01 <1> call loadFromFile 30 <1> 31 <1> ; and 64k into buffer 2 32 <1> 33 <1> ;mov ax, [WAV_BUFFER2] 34 <1> ;call loadFromFile 35 <1> 36 <1> ; write last valid index to 31 to start with. 37 <1> ; The Last Valid Index register tells the DMA engine when to stop playing. 38 <1> ; 39 <1> ; As we progress through the song we change the last valid index to always be 40 <1> ; something other than the index we're currently playing. 41 <1> ; 42 <1> ;;mov al, 1 43 <1> ;mov al, 31 44 <1> ;call setLastValidIndex 45 <1> 46 <1> ; create Buffer Descriptor List 47 <1> ; 48 <1> ; A buffer descriptor list is a list of pointers and control bits that the 49 <1> ; DMA engine uses to know where to get the .wav data and how to play it. 50 <1> ; 51 <1> ; I set it up to use only 2 buffers of .wav data, and whenever 1 buffer is 52 <1> ; playing, I refresh the other one with good data. 53 <1> ; 54 <1> ; 55 <1> ; For the control bits, you can specify that the DMA engine fire an interrupt 56 <1> ; after a buffer has been processed, but I poll the current index register 57 <1> ; to know when it's safe to update the other buffer. 58 <1> ; 59 <1> ; I set the BUP bit, which tells the DMA engine to just play 0's (silence) 60 <1> ; if it ever runs out of data to play. Good for safety. 61 <1> ; 62 0000054F 06 <1> push es 63 00000550 A1[7E09] <1> mov ax, [BDL_BUFFER] ; get segment # for BDL 64 00000553 8EC0 <1> mov es, ax 65 <1> 66 00000555 B91000 <1> mov cx, 32 / 2 ; make 32 entries in BDL 67 00000558 31FF <1> xor di, di 68 <1> _0: 69 <1> 70 <1> ; set buffer descriptor 0 to start of data file in memory 71 0000055A 660FB706[8009] <1> movzx eax, word [WAV_BUFFER1] 72 00000560 66C1E004 <1> shl eax, 4 ; convert seg:off ->0:offset 73 00000564 66AB <1> stosd ; store pointer to wavbuffer1 74 <1> 75 <1> ; 76 <1> ; set length to 32k samples. 1 sample is 16bits or 2bytes. 77 <1> ; Set control (bits 31:16) to BUP, bits 15:0=number of samples. 78 <1> ; 79 <1> 80 <1> ; VIA VT8235.PDF: (Page 110) (Erdogan Tan, 29/11/2016) 81 <1> ; 82 <1> ; Audio SGD Table Format 83 <1> ; ------------------------------- 84 <1> ; 63 62 61-56 55-32 31-0 85 <1> ; -- -- -------- ----- ---- 86 <1> ; EOL FLAG -reserved- Base Base 87 <1> ; Count Address 88 <1> ; [23:0] [31:0] 89 <1> ; EOL: End Of Link. 90 <1> ; 1 indicates this block is the last of the link. 91 <1> ; If the channel “Interrupt on EOL” bit is set, then 92 <1> ; an interrupt is generated at the end of the transfer. 93 <1> ; 94 <1> ; FLAG: Block Flag. If set, transfer pauses at the end of this 95 <1> ; block. If the channel “Interrupt on FLAG” bit is set, 96 <1> ; then an interrupt is generated at the end of this block. 97 <1> 98 <1> FLAG EQU BIT30 99 <1> EOL EQU BIT31 100 <1> 101 <1> ; 08/12/2016 - Erdogan Tan 102 00000566 66B800000100 <1> mov eax, FILESIZE 103 0000056C 660D00000040 <1> or eax, FLAG 104 <1> ;or eax, EOL 105 00000572 66AB <1> stosd 106 <1> 107 <1> ; 2nd buffer: 108 <1> 109 00000574 660FB706[8209] <1> movzx eax, word [WAV_BUFFER2] 110 0000057A 66C1E004 <1> shl eax, 4 ; convert seg:off ->0:offset 111 0000057E 66AB <1> stosd ; store pointer to wavbuffer2 112 <1> 113 <1> ; set length to 64k (32k of two 16 bit samples) 114 <1> ; Set control (bits 31:16) to BUP, bits 15:0=number of samples 115 <1> ; 116 <1> ; 08/12/2016 - Erdogan Tan 117 00000580 66B800000100 <1> mov eax, FILESIZE 118 00000586 660D00000080 <1> or eax, EOL 119 <1> ;or eax, FLAG 120 0000058C 66AB <1> stosd 121 <1> 122 0000058E E2CA <1> loop _0 123 00000590 07 <1> pop es 124 <1> 125 <1> ; 126 <1> ; tell the DMA engine where to find our list of Buffer Descriptors. 127 <1> ; this 32bit value is a flat mode memory offset (ie no segment:offset) 128 <1> ; 129 <1> ; write buffer descriptor list address 130 <1> ; 131 00000591 660FB706[7E09] <1> movzx eax, word [BDL_BUFFER] 132 00000597 66C1E004 <1> shl eax, 4 ; convert seg:off to 0:off 133 <1> 134 <1> ; 12/11/2016 - Erdogan Tan 135 <1> ; (Ref: KolibriOS, vt823x.asm, 'create_primary_buff') 136 0000059B 66BA04000000 <1> mov edx, VIADEV_PLAYBACK + VIA_REG_OFFSET_TABLE_PTR 137 000005A1 E8D1FE <1> call ctrl_io_w32 138 <1> 139 000005A4 E823FF <1> call codec_check_ready 140 <1> 141 000005A7 BA0200 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFS_PLAYBACK_VOLUME_L 142 000005AA 66B802000000 <1> mov eax, 2 ;31 143 000005B0 E8B6FE <1> call ctrl_io_w8 144 <1> 145 000005B3 E814FF <1> call codec_check_ready 146 <1> 147 000005B6 BA0300 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFS_PLAYBACK_VOLUME_R 148 000005B9 B80200 <1> mov ax, 2 ;31 149 000005BC E8AAFE <1> call ctrl_io_w8 150 <1> 151 000005BF E808FF <1> call codec_check_ready 152 <1> ; 153 <1> ; 154 <1> ; All set. Let's play some music. 155 <1> ; 156 <1> ; 157 <1> ;mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_STOP_IDX 158 <1> ;mov ax, VIA8233_REG_TYPE_16BIT or VIA8233_REG_TYPE_STEREO or 0xfffff or 0xff000000 159 <1> ;call ctrl_io_w32 160 <1> 161 <1> ;call codec_check_ready 162 <1> 163 <1> ; 08/12/2016 164 <1> ; 07/10/2016 165 <1> ;mov al, 1 166 000005C2 B01F <1> mov al, 31 167 000005C4 E8F400 <1> call setLastValidIndex 168 <1> 169 000005C7 C606[7D09]01 <1> mov byte [tLoop], 1 ; 30/11/2016 170 <1> 171 000005CC B82300 <1> mov ax, VIA_REG_CTRL_INT 172 000005CF 660D80000000 <1> or eax, VIA_REG_CTRL_START 173 <1> ;mov ax, VIA_REG_CTRL_AUTOSTART + VIA_REG_CTRL_START 174 <1> ; 28/11/2016 175 <1> ;mov ax, VIA_REG_CTRL_AUTOSTART + VIA_REG_CTRL_START + VIA_REG_CTRL_INT_FLAG 176 000005D5 BA0100 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_CONTROL 177 000005D8 E88EFE <1> call ctrl_io_w8 178 <1> 179 000005DB E8ECFE <1> call codec_check_ready 180 <1> 181 <1> ; while DMA engine is running, examine current index and wait until it hits 1 182 <1> ; as soon as it's 1, we need to refresh the data in wavbuffer1 with another 183 <1> ; 64k. Likewise when it's playing buffer 2, refresh buffer 1 and repeat. 184 <1> 185 <1> ; 08/12/2016 186 <1> ; 28/11/2016 187 <1> p_loop: 188 000005DE E82201 <1> call check4keyboardstop ; keyboard halt? 189 000005E1 7306 <1> jnc short r_loop 190 <1> 191 000005E3 C606[7D09]00 <1> mov byte [tLoop], 0 192 000005E8 C3 <1> retn 193 <1> r_loop: 194 <1> ; 07/12/2016 - Erdogan Tan 195 000005E9 90 <1> nop 196 000005EA 90 <1> nop 197 000005EB 90 <1> nop 198 000005EC 31C0 <1> xor ax, ax 199 000005EE 8606[5A09] <1> xchg al, [tBuff] ; AL = [tBuff], [tBuff] = 0 200 000005F2 3C01 <1> cmp al, 1 201 000005F4 72E8 <1> jb short p_loop 202 000005F6 740A <1> je short q_loop 203 000005F8 A1[8209] <1> mov ax, [WAV_BUFFER2] ; [tBuff]=2 (from tuneLoop) 204 000005FB E86C00 <1> call loadFromFile 205 000005FE 7255 <1> jc short _exit_ 206 00000600 EBE7 <1> jmp short r_loop 207 <1> q_loop: 208 00000602 A1[8009] <1> mov ax, [WAV_BUFFER1] ; [tBuff]=1 (from tuneLoop) 209 00000605 E86200 <1> call loadFromFile 210 00000608 724B <1> jc short _exit_ 211 0000060A EBDD <1> jmp short r_loop 212 <1> 213 <1> tuneLoop: 214 <1> ; 08/12/2016 215 <1> ; 28/11/2016 - Erdogan Tan 216 <1> 217 0000060C 803E[7D09]01 <1> cmp byte [tLoop], 1 218 00000611 7247 <1> jb short _exit 219 <1> 220 <1> ; 07/12/2016 221 00000613 06 <1> push es 222 00000614 29F6 <1> sub si, si 223 00000616 B800B8 <1> mov ax, 0B800h ; video display page segment 224 00000619 8EC0 <1> mov es, ax 225 0000061B B44E <1> mov ah, 4Eh 226 0000061D B031 <1> mov al, '1' 227 <1> 228 0000061F C606[5A09]01 <1> mov byte [tBuff], 1 ; Buffer 1 229 <1> 230 00000624 F606[7B09]02 <1> test byte [irq_status], VIA_REG_STAT_EOL 231 00000629 7406 <1> jz short _tlp1 ; FLAG 232 <1> 233 <1> ; EOL 234 0000062B FE06[5A09] <1> inc byte [tBuff] ; Buffer 2 235 0000062F FEC0 <1> inc al 236 <1> _tlp1: 237 00000631 268904 <1> mov [es:si], ax ; show playing buffer (1, 2) 238 00000634 07 <1> pop es 239 <1> 240 00000635 F606[7B09]01 <1> test byte [irq_status], VIA_REG_STAT_FLAG 241 0000063A 740F <1> jz short _tlp2 242 <1> 243 0000063C B82300 <1> mov ax, VIA_REG_CTRL_INT 244 0000063F 0D8000 <1> or ax, VIA_REG_CTRL_START 245 00000642 BA0100 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_CONTROL 246 00000645 E821FE <1> call ctrl_io_w8 247 <1> 248 00000648 E87FFE <1> call codec_check_ready 249 <1> _tlp2: 250 0000064B A0[7B09] <1> mov al, [irq_status] ;; ack ;; 251 0000064E BA0000 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_STATUS 252 00000651 E815FE <1> call ctrl_io_w8 253 <1> 254 00000654 C3 <1> retn 255 <1> 256 <1> _exit_: 257 00000655 C606[7D09]00 <1> mov byte [tLoop], 0 258 <1> _exit: 259 <1> ; finished with song, stop everything 260 0000065A B82300 <1> mov ax, VIA_REG_CTRL_INT 261 0000065D 83C840 <1> or ax, VIA_REG_CTRL_TERMINATE 262 00000660 BA0100 <1> mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_CONTROL 263 00000663 E803FE <1> call ctrl_io_w8 264 <1> 265 00000666 E888FE <1> call channel_reset 266 <1> _return: 267 00000669 C3 <1> retn 268 <1> 269 <1> ; load data from file in 32k chunks. Would be nice to load 1 64k chunk, 270 <1> ; but in DOS you can only load FFFF bytes at a time. 271 <1> ; 272 <1> ; entry: ax = segment to load data to 273 <1> ; exit: CY set if end of file reached. 274 <1> ; note: last file buffer is padded with 0's to avoid pops at the end of song. 275 <1> ; assumes file is already open. uses [filehandle] 276 <1> ; 277 <1> loadFromFile: 278 0000066A 50 <1> push ax 279 0000066B 51 <1> push cx 280 0000066C 52 <1> push dx 281 <1> ;push es 282 0000066D 1E <1> push ds 283 <1> 284 <1> ;push ds ; copy es->ds since we 285 <1> ;pop es ; mess with DS 286 <1> 287 <1> ;test byte [es:flags], ENDOFFILE ; have we already read the 288 0000066E F606[7A09]01 <1> test byte [flags], ENDOFFILE 289 00000673 F9 <1> stc ; last of the file? 290 00000674 7532 <1> jnz short endLFF 291 <1> 292 00000676 8ED8 <1> mov ds, ax 293 00000678 31D2 <1> xor dx, dx ; load file into memory 294 0000067A B90080 <1> mov cx, (FILESIZE / 2) ; 32k chunk 295 0000067D B43F <1> mov ah, 3fh 296 0000067F 2E8B1E[7809] <1> mov bx, [cs:filehandle] 297 00000684 CD21 <1> int 21h 298 <1> 299 00000686 F8 <1> clc 300 00000687 39C8 <1> cmp ax, cx 301 <1> ;je short _lff1 302 00000689 7513 <1> jne short _lff1 303 <1> 304 <1> ; or byte [es:flags], ENDOFFILE ; flag end of file 305 <1> ; call padfill ; blank pad the remainder 306 <1> ; clc ; don't exit with CY yet. 307 <1> ; jmp short endLFF 308 <1> ;_lff1: 309 0000068B 01C2 <1> add dx, ax 310 <1> 311 0000068D B90080 <1> mov cx, (FILESIZE / 2) ; 32k chunk 312 00000690 B43F <1> mov ah, 3fh 313 00000692 2E8B1E[7809] <1> mov bx, [cs:filehandle] 314 00000697 CD21 <1> int 21h 315 00000699 F8 <1> clc 316 0000069A 39C8 <1> cmp ax, cx 317 0000069C 740A <1> je short endLFF 318 <1> _lff1: 319 <1> ;or byte [es:flags], ENDOFFILE ; flag end of file 320 0000069E 2E800E[7A09]01 <1> or byte [cs:flags], ENDOFFILE 321 000006A4 E80600 <1> call padfill ; blank pad the remainder 322 000006A7 F8 <1> clc ; don't exit with CY yet. 323 <1> endLFF: 324 000006A8 1F <1> pop ds 325 <1> ;pop es 326 000006A9 5A <1> pop dx 327 000006AA 59 <1> pop cx 328 000006AB 58 <1> pop ax 329 000006AC C3 <1> retn 330 <1> 331 <1> ; entry ds:ax points to last byte in file 332 <1> ; cx=target size 333 <1> ; note: must do byte size fill 334 <1> ; destroys bx, cx 335 <1> ; 336 <1> padfill: 337 000006AD 53 <1> push bx 338 000006AE 29C1 <1> sub cx, ax 339 000006B0 89C3 <1> mov bx, ax 340 000006B2 30C0 <1> xor al, al 341 <1> padfloop: 342 000006B4 8807 <1> mov [bx], al 343 000006B6 43 <1> inc bx 344 000006B7 E2FB <1> loop padfloop 345 000006B9 5B <1> pop bx 346 000006BA C3 <1> retn 347 <1> 348 <1> ;; returns AL = current index value 349 <1> ;getCurrentIndex: 350 <1> ; ; 14/11/2016 - Erdogan Tan (Ref: VIA VT8235.PDF, Page 110) 351 <1> ; ; 12/11/2016 - Erdogan Tan (Ref: KolibriOS, vt823x.asm) 352 <1> ; ;push edx 353 <1> ; mov edx, VIADEV_PLAYBACK + VIA_REG_OFFSET_CURR_INDEX 354 <1> ; call ctrl_io_r8 355 <1> ; ; AL = Current index 356 <1> ; ;pop edx 357 <1> ; retn 358 <1> 359 <1> ;input AL = index # to stop on 360 <1> setLastValidIndex: 361 <1> ; 19/11/2016 362 <1> ; 14/11/2016 - Erdogan Tan (Ref: VIA VT8235.PDF, Page 110) 363 <1> ; 12/11/2016 - Erdogan Tan 364 <1> ; (Ref: KolibriOS, vt823x.asm, 'create_primary_buff') 365 <1> ;push edx 366 000006BB 50 <1> push ax 367 <1> ;push ecx 368 000006BC 660FB706[9409] <1> movzx eax, word [sample_rate] ; Hertz 369 000006C2 66BA00001000 <1> mov edx, 100000h ; 2^20 = 1048576 370 000006C8 66F7E2 <1> mul edx 371 000006CB 66B980BB0000 <1> mov ecx, 48000 372 000006D1 66F7F1 <1> div ecx 373 <1> ;and eax, 0FFFFFh 374 <1> ;pop ecx 375 000006D4 5A <1> pop dx 376 000006D5 66C1E218 <1> shl edx, 24 ; STOP Index Setting: Bit 24 to 31 377 000006D9 6609D0 <1> or eax, edx 378 <1> ; 19/11/2016 379 000006DC 803E[9709]10 <1> cmp byte [bps], 16 380 000006E1 7506 <1> jne short sLVI_1 381 000006E3 660D00002000 <1> or eax, VIA8233_REG_TYPE_16BIT 382 <1> sLVI_1: 383 000006E9 803E[9609]02 <1> cmp byte [stmo], 2 384 000006EE 7506 <1> jne short sLVI_2 385 000006F0 660D00001000 <1> or eax, VIA8233_REG_TYPE_STEREO 386 <1> sLVI_2: 387 000006F6 66BA08000000 <1> mov edx, VIADEV_PLAYBACK + VIA_REG_OFFSET_STOP_IDX 388 000006FC E876FD <1> call ctrl_io_w32 389 000006FF E8C8FD <1> call codec_check_ready 390 <1> ;pop edx 391 00000702 C3 <1> retn 392 <1> 393 <1> ; checks if either shift key has been pressed. Exits with CY if so. 394 <1> ; 395 <1> check4keyboardstop: 396 00000703 06 <1> push es 397 00000704 6A00 <1> push 0 398 00000706 07 <1> pop es ; examine BDA for keyboard flags 399 00000707 26F606170403 <1> test byte [es:417h], (BIT0 | BIT1) 400 0000070D 07 <1> pop es 401 0000070E F9 <1> stc 402 0000070F 7501 <1> jnz short _cksr 403 00000711 F8 <1> clc 404 <1> _cksr: 405 00000712 C3 <1> retn 416 417 ; UTILS.ASM 418 ;---------------------------------------------------------------------------- 419 ; delay1_4ms - Delay for 1/4 millisecond. 420 ; 1mS = 1000us 421 ; Entry: 422 ; None 423 ; Exit: 424 ; None 425 ; 426 ; Modified: 427 ; None 428 ; 429 PORTB EQU 061h 430 REFRESH_STATUS EQU 010h ; Refresh signal status 431 432 delay1_4ms: 433 00000713 50 push ax 434 00000714 51 push cx 435 00000715 B91000 mov cx, 16 ; close enough. 436 00000718 E461 in al,PORTB 437 0000071A 2410 and al,REFRESH_STATUS 438 0000071C 88C4 mov ah,al ; Start toggle state 439 0000071E 09C9 or cx, cx 440 00000720 7401 jz short _d4ms1 441 00000722 41 inc cx ; Throwaway first toggle 442 _d4ms1: 443 00000723 E461 in al,PORTB ; Read system control port 444 00000725 2410 and al,REFRESH_STATUS ; Refresh toggles 15.085 microseconds 445 00000727 38C4 cmp ah,al 446 00000729 74F8 je short _d4ms1 ; Wait for state change 447 448 0000072B 88C4 mov ah,al ; Update with new state 449 0000072D 49 dec cx 450 0000072E 75F3 jnz short _d4ms1 451 452 00000730 59 pop cx 453 00000731 58 pop ax 454 00000732 C3 retn 455 456 ; 13/11/2016 - Erdogan Tan 457 write_ac97_dev_info: 458 ; BUS/DEV/FN 459 ; 00000000BBBBBBBBDDDDDFFF00000000 460 ; DEV/VENDOR 461 ; DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV 462 463 00000733 30FF xor bh, bh 464 00000735 668B36[8A09] mov esi, [dev_vendor] 465 0000073A 89F0 mov ax, si 466 0000073C 88C3 mov bl, al 467 0000073E 88DA mov dl, bl 468 00000740 80E30F and bl, 0Fh 469 00000743 8A87[A809] mov al, [bx+hex_chars] 470 00000747 A2[EB09] mov [msgVendorId+3], al 471 0000074A 88D3 mov bl, dl 472 0000074C C0EB04 shr bl, 4 473 0000074F 8A87[A809] mov al, [bx+hex_chars] 474 00000753 A2[EA09] mov [msgVendorId+2], al 475 00000756 88E3 mov bl, ah 476 00000758 88DA mov dl, bl 477 0000075A 80E30F and bl, 0Fh 478 0000075D 8A87[A809] mov al, [bx+hex_chars] 479 00000761 A2[E909] mov [msgVendorId+1], al 480 00000764 88D3 mov bl, dl 481 00000766 C0EB04 shr bl, 4 482 00000769 8A87[A809] mov al, [bx+hex_chars] 483 0000076D A2[E809] mov [msgVendorId], al 484 00000770 66C1EE10 shr esi, 16 485 00000774 89F0 mov ax, si 486 00000776 88C3 mov bl, al 487 00000778 88DA mov dl, bl 488 0000077A 80E30F and bl, 0Fh 489 0000077D 8A87[A809] mov al, [bx+hex_chars] 490 00000781 A2[FC09] mov [msgDevId+3], al 491 00000784 88D3 mov bl, dl 492 00000786 C0EB04 shr bl, 4 493 00000789 8A87[A809] mov al, [bx+hex_chars] 494 0000078D A2[FB09] mov [msgDevId+2], al 495 00000790 88E3 mov bl, ah 496 00000792 88DA mov dl, bl 497 00000794 80E30F and bl, 0Fh 498 00000797 8A87[A809] mov al, [bx+hex_chars] 499 0000079B A2[FA09] mov [msgDevId+1], al 500 0000079E 88D3 mov bl, dl 501 000007A0 C0EB04 shr bl, 4 502 000007A3 8A87[A809] mov al, [bx+hex_chars] 503 000007A7 A2[F909] mov [msgDevId], al 504 505 000007AA 668B36[8609] mov esi, [bus_dev_fn] 506 000007AF 66C1EE08 shr esi, 8 507 000007B3 89F0 mov ax, si 508 000007B5 88C3 mov bl, al 509 000007B7 88DA mov dl, bl 510 000007B9 80E307 and bl, 7 ; bit 0,1,2 511 000007BC 8A87[A809] mov al, [bx+hex_chars] 512 000007C0 A2[200A] mov [msgFncNo+1], al 513 000007C3 88D3 mov bl, dl 514 000007C5 C0EB03 shr bl, 3 515 000007C8 88DA mov dl, bl 516 000007CA 80E30F and bl, 0Fh 517 000007CD 8A87[A809] mov al, [bx+hex_chars] 518 000007D1 A2[120A] mov [msgDevNo+1], al 519 000007D4 88D3 mov bl, dl 520 000007D6 C0EB04 shr bl, 4 521 000007D9 8A87[A809] mov al, [bx+hex_chars] 522 000007DD A2[110A] mov [msgDevNo], al 523 000007E0 88E3 mov bl, ah 524 000007E2 88DA mov dl, bl 525 000007E4 80E30F and bl, 0Fh 526 000007E7 8A87[A809] mov al, [bx+hex_chars] 527 000007EB A2[060A] mov [msgBusNo+1], al 528 000007EE 88D3 mov bl, dl 529 000007F0 C0EB04 shr bl, 4 530 000007F3 8A87[A809] mov al, [bx+hex_chars] 531 000007F7 A2[050A] mov [msgBusNo], al 532 533 000007FA A1[9209] mov ax, [ac97_io_base] 534 000007FD 88C3 mov bl, al 535 000007FF 88DA mov dl, bl 536 00000801 80E30F and bl, 0Fh 537 00000804 8A87[A809] mov al, [bx+hex_chars] 538 00000808 A2[390A] mov [msgIOBaseAddr+3], al 539 0000080B 88D3 mov bl, dl 540 0000080D C0EB04 shr bl, 4 541 00000810 8A87[A809] mov al, [bx+hex_chars] 542 00000814 A2[380A] mov [msgIOBaseAddr+2], al 543 00000817 88E3 mov bl, ah 544 00000819 88DA mov dl, bl 545 0000081B 80E30F and bl, 0Fh 546 0000081E 8A87[A809] mov al, [bx+hex_chars] 547 00000822 A2[370A] mov [msgIOBaseAddr+1], al 548 00000825 88D3 mov bl, dl 549 00000827 C0EB04 shr bl, 4 550 0000082A 8A87[A809] mov al, [bx+hex_chars] 551 0000082E A2[360A] mov [msgIOBaseAddr], al 552 553 ; 24/11/2016 554 00000831 30E4 xor ah, ah 555 00000833 A0[8409] mov al, [ac97_int_ln_reg] 556 00000836 B10A mov cl, 10 557 00000838 F6F1 div cl 558 0000083A 0106[410A] add [msgIRQ], ax 559 0000083E 20C0 and al, al 560 00000840 7508 jnz short _pmi 561 00000842 A0[420A] mov al, [msgIRQ+1] 562 00000845 B420 mov ah, ' ' 563 00000847 A3[410A] mov [msgIRQ], ax 564 _pmi: 565 0000084A BA[B909] mov dx, msgAC97Info 566 0000084D B409 mov ah, 9 567 0000084F CD21 int 21h 568 00000851 C3 retn 569 570 write_sample_rate: 571 ; ax = sample rate (hertz) 572 573 00000852 31D2 xor dx, dx 574 00000854 B90A00 mov cx, 10 575 00000857 F7F1 div cx 576 00000859 0016[570A] add [msgHertz+4], dl 577 0000085D 29D2 sub dx, dx 578 0000085F F7F1 div cx 579 00000861 0016[560A] add [msgHertz+3], dl 580 00000865 29D2 sub dx, dx 581 00000867 F7F1 div cx 582 00000869 0016[550A] add [msgHertz+2], dl 583 0000086D 29D2 sub dx, dx 584 0000086F F7F1 div cx 585 00000871 0016[540A] add [msgHertz+1], dl 586 00000875 0006[530A] add [msgHertz], al 587 588 00000879 BA[460A] mov dx, msgSampleRate 589 0000087C B409 mov ah, 9 590 0000087E CD21 int 21h 591 592 ; 19/11/2016 593 00000880 BA[6C0A] mov dx, msg16Bits 594 00000883 803E[9709]10 cmp byte [bps], 16 595 00000888 7403 je short wsr_1 596 0000088A BA[5D0A] mov dx, msg8Bits 597 wsr_1: 598 0000088D B409 mov ah, 9 599 0000088F CD21 int 21h 600 601 00000891 BA[650A] mov dx, msgMono 602 00000894 803E[9609]01 cmp byte [stmo], 1 603 00000899 7403 je short wsr_2 604 0000089B BA[750A] mov dx, msgStereo 605 wsr_2: 606 0000089E B409 mov ah, 9 607 000008A0 CD21 int 21h 608 609 000008A2 C3 retn 610 611 ;detect_codec: 612 ; ; 13/11/2016 - Erdogan Tan (Ref: KolibriOS, codec.inc) 613 ; mov eax, 7Ch 614 ; call codec_read 615 ; shl eax, 16 616 ; mov [codec_id], eax 617 ; 618 ; mov eax, 7Eh 619 ; call codec_read 620 ; or eax, [codec_id] 621 ; mov [codec_chip_id], eax 622 ; and eax, 0FFFFFF00h 623 ; 624 ; mov edi, codecs 625 ;_dcb: 626 ; mov ebx, [di] 627 ; test ebx, ebx 628 ; jz short _dco_unknown 629 ; 630 ; cmp eax, ebx 631 ; jne short _dco_next 632 ; mov ax, [di+4] 633 ; mov [codec_vendor_ids], ax 634 ; movzx esi, ax 635 ; call print_msg 636 ; 637 ; mov ax, [di+6] 638 ; call detect_chip 639 ; retn 640 ; 641 ;_dco_next: 642 ; add di, 8 643 ; jmp short _dcb 644 ; 645 ;_dco_unknown: 646 ; mov word [codec_vendor_ids], ac_unknown 647 ; mov word [codec_chip_ids], chip_unknown 648 ; mov esi, chip_unknown 649 ; call print_msg 650 ; mov eax, [codec_chip_id] 651 ; call dword2str 652 ; call print_msg 653 ; retn 654 655 ;detect_chip: 656 ; ; 13/11/2016 - Erdogan Tan (Ref: KolibriOS, codec.inc) 657 ; mov di, ax ; chip_tab 658 ; mov eax, [codec_chip_id] 659 ; and ax, 0FFh 660 ;_dch1: 661 ; mov bx, [di] 662 ; cmp bx, 0FFh 663 ; je short _dch_unknown 664 ; 665 ; cmp ax, bx 666 ; jne short _dch_next 667 ; mov ax, [di+2] 668 ; mov [codec_chip_ids], ax 669 ; mov si, ax 670 ; call print_msg 671 ; retn 672 673 ;_dch_next: 674 ; add di, 4 675 ; jmp short _dch1 676 ; 677 ;_dch_unknown: 678 ; mov word [codec_chip_ids], chip_unknown 679 ; mov si, chip_unknown 680 ; call print_msg 681 ; mov eax, [codec_chip_id] 682 ; call dword2str 683 ; call print_msg 684 ; retn 685 686 ac97_int_handler: 687 000008A3 50 push ax 688 000008A4 52 push dx 689 000008A5 51 push cx 690 000008A6 53 push bx 691 000008A7 56 push si 692 000008A8 57 push di 693 694 ; 28/11/2016 695 000008A9 803E[7C09]01 cmp byte [uLVI], 1 696 000008AE 7337 jnb short _busy 697 698 000008B0 C606[7C09]01 mov byte [uLVI], 1 699 700 000008B5 C606[7B09]00 mov byte [irq_status], 0 701 702 000008BA BA0000 mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_STATUS 703 000008BD E8AFFB call ctrl_io_r8 704 705 000008C0 A880 test al, VIA_REG_STAT_ACTIVE 706 000008C2 740A jz short _ih0 707 708 000008C4 2407 and al, VIA_REG_STAT_EOL + VIA_REG_STAT_FLAG + VIA_REG_STAT_STOPPED 709 000008C6 A2[7B09] mov [irq_status], al 710 000008C9 7403 jz short _ih0 711 712 ; 28/11/2016 - Erdogan Tan 713 000008CB E83EFD call tuneLoop 714 _ih0: 715 000008CE C606[7C09]00 mov byte [uLVI], 0 716 _p_i_retn: 717 000008D3 B020 mov al, 20h 718 000008D5 F606[8409]08 test byte [ac97_int_ln_reg], 8 719 000008DA 7402 jz short _ih_1 720 000008DC E6A0 out 0A0h, al ; 20h ; EOI 721 _ih_1: 722 000008DE E620 out 20h, al ; 20h ; EOI 723 _ih_2: 724 000008E0 5F pop di 725 000008E1 5E pop si 726 000008E2 5B pop bx 727 000008E3 59 pop cx 728 000008E4 5A pop dx 729 000008E5 58 pop ax 730 000008E6 CF iret 731 732 _busy: 733 ; 28/11/2016 - Erdogan Tan 734 000008E7 A0[7B09] mov al, [irq_status] ;; ack ;; 735 000008EA BA0000 mov dx, VIADEV_PLAYBACK + VIA_REG_OFFSET_STATUS 736 000008ED E879FB call ctrl_io_w8 737 738 000008F0 EBDC jmp short _ih0 739 740 print_msg: 741 ; 13/11/2016 - Erdogan Tan 742 ; esi = ASCIIZ text address 743 ; 744 000008F2 BB0700 mov bx, 7h 745 000008F5 B40E mov ah, 0Eh 746 pm_next_char: 747 000008F7 AC lodsb 748 000008F8 20C0 and al, al 749 000008FA 7404 jz short pm_retn 750 000008FC CD10 int 10h 751 000008FE EBF7 jmp short pm_next_char 752 pm_retn: 753 00000900 C3 retn 754 755 dword2str: 756 ; 13/11/2016 - Erdogan Tan 757 ; eax = dword value 758 ; 759 00000901 E84400 call dwordtohex 760 00000904 668916[7E0A] mov [dword_str], edx 761 00000909 66A3[820A] mov [dword_str+4], eax 762 0000090D BE[7E0A] mov si, dword_str 763 00000910 C3 retn 764 765 ; trdos386.s (unix386.s) - 10/05/2015 766 ; Convert binary number to hexadecimal string 767 768 bytetohex: 769 ; INPUT -> 770 ; AL = byte (binary number) 771 ; OUTPUT -> 772 ; AX = hexadecimal string 773 ; 774 00000911 53 push bx 775 00000912 30FF xor bh, bh 776 00000914 88C3 mov bl, al 777 00000916 C0EB04 shr bl, 4 778 00000919 8A9F[A809] mov bl, [bx+hex_chars] 779 0000091D 86D8 xchg bl, al 780 0000091F 80E30F and bl, 0Fh 781 00000922 8AA7[A809] mov ah, [bx+hex_chars] 782 00000926 5B pop bx 783 00000927 C3 retn 784 785 wordtohex: 786 ; INPUT -> 787 ; AX = word (binary number) 788 ; OUTPUT -> 789 ; EAX = hexadecimal string 790 ; 791 00000928 53 push bx 792 00000929 30FF xor bh, bh 793 0000092B 86E0 xchg ah, al 794 0000092D 50 push ax 795 0000092E 88E3 mov bl, ah 796 00000930 C0EB04 shr bl, 4 797 00000933 8A87[A809] mov al, [bx+hex_chars] 798 00000937 88E3 mov bl, ah 799 00000939 80E30F and bl, 0Fh 800 0000093C 8AA7[A809] mov ah, [bx+hex_chars] 801 00000940 66C1E010 shl eax, 16 802 00000944 58 pop ax 803 00000945 5B pop bx 804 00000946 EBC9 jmp short bytetohex 805 806 dwordtohex: 807 ; INPUT -> 808 ; EAX = dword (binary number) 809 ; OUTPUT -> 810 ; EDX:EAX = hexadecimal string 811 ; 812 00000948 6650 push eax 813 0000094A 66C1E810 shr eax, 16 814 0000094E E8D7FF call wordtohex 815 00000951 6689C2 mov edx, eax 816 00000954 6658 pop eax 817 00000956 E8CFFF call wordtohex 818 00000959 C3 retn 819 820 _DATA: 821 822 0000095A 02 tBuff db 2 ; 08/12/2016 823 824 ; 28/11/2016 825 0000095B 90 align 2 826 827 0000095C 0000 smpRBuff times 14 dw 0 ; 19/11/2016 - Erdogan Tan 828 829 00000978 0000 filehandle dw 0 830 831 0000097A 00 flags db 0 832 0000097B 00 irq_status db 0 833 834 0000097C 00 uLVI db 0 835 0000097D 00 tLoop db 0 836 837 ; 256 byte buffer for descriptor list 838 0000097E 0000 BDL_BUFFER dw 0 ; segment of our 256byte BDL buffer 839 00000980 0000 WAV_BUFFER1 dw 0 ; segment of our WAV storage 840 ; 64k buffers for wav file storage 841 00000982 0000 WAV_BUFFER2 dw 0 ; segment of 2nd wav buffer 842 843 ; 12/11/2016 - Erdogan Tan 844 845 00000984 00 ac97_int_ln_reg db 0 846 00000985 00 err_num db 0 847 848 00000986 00000000 bus_dev_fn dd 0 849 0000098A 00000000 dev_vendor dd 0 850 0000098E 00000000 stats_cmd dd 0 851 00000992 0000 ac97_io_base dw 0 852 00000994 0000 sample_rate dw 0 853 ; 19/11/2016 854 00000996 00 stmo db 0 855 00000997 00 bps db 0 856 857 ; 24/11/2016 858 ; IRQ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 859 00000998 08090A0B0C0D0E0F70- irq_int db 08h,09h,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh,70h,71h,72h,73h,74h,75h,76h,77h 859 000009A1 71727374757677 860 861 ; 13/11/2016 862 000009A8 303132333435363738- hex_chars db "0123456789ABCDEF", 0 862 000009B1 3941424344454600 863 000009B9 414339372041756469- msgAC97Info db "AC97 Audio Controller & Codec Info", 0Dh, 0Ah 863 000009C2 6F20436F6E74726F6C- 863 000009CB 6C6572202620436F64- 863 000009D4 656320496E666F0D0A 864 000009DD 56656E646F72204944- db "Vendor ID: " 864 000009E6 3A20 865 000009E8 303030306820446576- msgVendorId db "0000h Device ID: " 865 000009F1 6963652049443A20 866 000009F9 30303030680D0A msgDevId db "0000h", 0Dh, 0Ah 867 00000A00 4275733A20 db "Bus: " 868 00000A05 303068204465766963- msgBusNo db "00h Device: " 868 00000A0E 653A20 869 00000A11 3030682046756E6374- msgDevNo db "00h Function: " 869 00000A1A 696F6E3A20 870 00000A1F 303068 msgFncNo db "00h" 871 00000A22 0D0A db 0Dh, 0Ah 872 00000A24 492F4F204261736520- db "I/O Base Address: " 872 00000A2D 416464726573733A20 873 00000A36 303030306820495251- msgIOBaseAddr db "0000h IRQ: " 873 00000A3F 3A20 874 00000A41 3030 msgIRQ dw 3030h 875 00000A43 0D0A24 db 0Dh, 0Ah, "$" 876 00000A46 53616D706C65205261- msgSampleRate db "Sample Rate: " 876 00000A4F 74653A20 877 00000A53 303030303020487A20- msgHertz db "00000 Hz ", "$" 877 00000A5C 24 878 00000A5D 3820626974732024 msg8Bits db "8 bits ", "$" 879 00000A65 4D6F6E6F0D0A24 msgMono db "Mono", 0Dh, 0Ah, "$" 880 00000A6C 313620626974732024 msg16Bits db "16 bits ", "$" 881 00000A75 53746572656F0D0A24 msgStereo db "Stereo", 0Dh, 0Ah, "$" 882 883 ;; 13/11/2016 - Erdogan Tan (Ref: KolibriOS, codec.inc) 884 ;codec_id dd 0 885 ;codec_chip_id dd 0 886 ;codec_vendor_ids dw 0 887 ;codec_chip_ids dw 0 888 889 00000A7E 3030303030303030 dword_str dd 30303030h, 30303030h 890 00000A86 680D0A00 db 'h', 0Dh, 0Ah, 0 891 892 ;ac_unknown db 'unknown manufacturer',13,10,0 893 ;ac_Realtek db 'Realtek Semiconductor',13,10,0 894 ;ac_Analog db 'Analog Devices',13,10,0 895 ;ac_CMedia db 'C-Media Electronics',13,10,0 896 ;ac_Cirrus db 'Cirrus Logic',13,10,0 897 ;ac_Wolfson db 'Wolfson Microelectronics',13,10,0 898 ;ac_VIA db 'VIA Technologies',13,10,0 899 ;ac_SigmaTel db 'SigmaTel',13,10,0 900 ;ac_eMicro db 'eMicro',13,10,0 901 ; 902 ;chip_unknown db 'unknown codec id ', 0 903 904 ;CHIP_REALTEK equ 414C4700h 905 ;CHIP_CMEDIA equ 434D4900h 906 ;CHIP_VIA equ 56494100h 907 908 ;codecs dd CHIP_CMEDIA 909 ; dw ac_CMedia, chips_CMedia 910 ; dd CHIP_REALTEK 911 ; dw ac_Realtek, chips_Realtek 912 ; dd CHIP_VIA 913 ; dw ac_VIA, chips_VIA 914 ; dd 0 915 916 ;chips_Realtek dw 10h, chip_ALC201a 917 ; dw 20h, chip_ALC650 918 ; dw 21h, chip_ALC650D 919 ; dw 22h, chip_ALC650E 920 ; dw 23h, chip_ALC650F 921 ; dw 60h, chip_ALC655 922 ; dw 80h, chip_ALC658 923 ; dw 81h, chip_ALC658D 924 ; dw 90h, chip_ALC850 925 ; dw 0FFh 926 927 ;chips_CMedia dw 41h, chip_CM9738 928 ; dw 61h, chip_CM9739 929 ; dw 69h, chip_CM9780 930 ; dw 78h, chip_CM9761 931 ; dw 82h, chip_CM9761 932 ; dw 83h, chip_CM9761 933 ; dw 0FFh 934 935 ;chips_VIA dw 61h, chip_VIA1612A 936 ; dw 0FFh 937 938 ;Realtek 939 ;chip_ALC201a db 'ALC201a',0dh,0ah,00h 940 ;chip_ALC650 db 'ALC650 ',0dh,0ah,00h 941 ;chip_ALC650D db 'ALC650D',0dh,0ah,00h 942 ;chip_ALC650E db 'ALC650E',0dh,0ah,00h 943 ;chip_ALC650F db 'ALC650F',0dh,0ah,00h 944 ;chip_ALC655 db 'ALC655 ',0dh,0ah,00h 945 ;chip_ALC658 db 'ALC658 ',0dh,0ah,00h 946 ;chip_ALC658D db 'ALC658D',0dh,0ah,00h 947 ;chip_ALC850 db 'ALC850 ',0dh,0ah,00h 948 949 ;CMedia 950 ;chip_CM9738 db 'CMI9738', 0dh,0ah,0 951 ;chip_CM9739 db 'CMI9739', 0dh,0ah,0 952 ;chip_CM9780 db 'CMI9780', 0dh,0ah,0 953 ;chip_CM9761 db 'CMI9761', 0dh,0ah,0 954 955 ;VIA 956 ;chip_VIA1612A db 'VIA1612A',13,10,0