playwav3.txt

     1                                  ; ****************************************************************************
     2                                  ; playwav3.s (for TRDOS 386)
     3                                  ; ----------------------------------------------------------------------------
     4                                  ; PLAYWAV3.PRG ! AC'97 (ICH) .WAV PLAYER program by Erdogan TAN
     5                                  ;
     6                                  ; 28/05/2017
     7                                  ;
     8                                  ; [ Last Modification: 17/06/2017 ]
     9                                  ;
    10                                  ; Modified from PLAYWAV2.PRG .wav player program by Erdogan Tan, 27/05/2017
    11                                  ;
    12                                  ; Assembler: NASM version 2.11
    13                                  ;	     nasm playwav3.s -l playwav3.txt -o PLAYWAV3.PRG	
    14                                  ; ----------------------------------------------------------------------------
    15                                  ; Derived from '.wav file player for DOS' Jeff Leyda, Sep 02, 2002
    16                                  
    17                                  ; CODE
    18                                  
    19                                  ; 01/03/2017
    20                                  ; 16/10/2016
    21                                  ; 29/04/2016
    22                                  ; TRDOS 386 system calls (temporary list!)
    23                                  _ver 	equ 0
    24                                  _exit 	equ 1
    25                                  _fork 	equ 2
    26                                  _read 	equ 3
    27                                  _write	equ 4
    28                                  _open	equ 5
    29                                  _close 	equ 6
    30                                  _wait 	equ 7
    31                                  _creat 	equ 8
    32                                  _link 	equ 9
    33                                  _unlink	equ 10
    34                                  _exec	equ 11
    35                                  _chdir	equ 12
    36                                  _time 	equ 13
    37                                  _mkdir 	equ 14
    38                                  _chmod	equ 15
    39                                  _chown	equ 16
    40                                  _break	equ 17
    41                                  _stat	equ 18
    42                                  _seek	equ 19
    43                                  _tell 	equ 20
    44                                  _mount	equ 21
    45                                  _umount	equ 22
    46                                  _setuid	equ 23
    47                                  _getuid	equ 24
    48                                  _stime	equ 25
    49                                  _quit	equ 26	
    50                                  _intr	equ 27
    51                                  _fstat	equ 28
    52                                  _emt 	equ 29
    53                                  _mdate 	equ 30
    54                                  _video 	equ 31
    55                                  _audio	equ 32
    56                                  _timer	equ 33
    57                                  _sleep	equ 34
    58                                  _msg    equ 35
    59                                  _geterr	equ 36
    60                                  _fpsave	equ 37
    61                                  _pri	equ 38
    62                                  _rele	equ 39
    63                                  _fff	equ 40
    64                                  _fnf	equ 41
    65                                  _alloc	equ 42
    66                                  _dalloc equ 43
    67                                  _calbac equ 44
    68                                  
    69                                  %macro sys 1-4
    70                                      ; 29/04/2016 - TRDOS 386 (TRDOS v2.0)	
    71                                      ; 03/09/2015	
    72                                      ; 13/04/2015
    73                                      ; Retro UNIX 386 v1 system call.	
    74                                      %if %0 >= 2   
    75                                          mov ebx, %2
    76                                          %if %0 >= 3    
    77                                              mov ecx, %3
    78                                              %if %0 = 4
    79                                                 mov edx, %4   
    80                                              %endif
    81                                          %endif
    82                                      %endif
    83                                      mov eax, %1
    84                                      ;int 30h
    85                                      int 40h ; TRDOS 386 (TRDOS v2.0)	   
    86                                  %endmacro
    87                                  
    88                                  ; TRDOS 386 (and Retro UNIX 386 v1) system call format:
    89                                  ; sys systemcall (eax) <arg1 (ebx)>, <arg2 (ecx)>, <arg3 (edx)>
    90                                  
    91                                  BUFFERSIZE      equ     32768	; audio buffer size 
    92                                  ENDOFFILE       equ     1	; flag for knowing end of file
    93                                  
    94                                  [BITS 32]
    95                                  
    96                                  [ORG 0] 
    97                                  
    98                                  _STARTUP:
    99                                  	; Prints the Credits Text.
   100                                  	sys	_msg, Credits, 255, 0Bh
   101                              <1> 
   102                              <1> 
   103                              <1> 
   104                              <1> 
   105                              <1>  %if %0 >= 2
   106 00000000 BB[F6060000]        <1>  mov ebx, %2
   107                              <1>  %if %0 >= 3
   108 00000005 B9FF000000          <1>  mov ecx, %3
   109                              <1>  %if %0 = 4
   110 0000000A BA0B000000          <1>  mov edx, %4
   111                              <1>  %endif
   112                              <1>  %endif
   113                              <1>  %endif
   114 0000000F B823000000          <1>  mov eax, %1
   115                              <1> 
   116 00000014 CD40                <1>  int 40h
   117                                  
   118                                  	; clear bss
   119 00000016 B9[64090000]            	mov	ecx, bss_end
   120 0000001B BF[E0080000]            	mov	edi, bss_start
   121 00000020 29F9                    	sub	ecx, edi
   122 00000022 D1E9                    	shr	ecx, 1
   123 00000024 31C0                    	xor	eax, eax
   124 00000026 F366AB                  	rep	stosw
   125                                  
   126                                  	; Detect (& Enable) AC'97 Audio Device
   127 00000029 E8D7010000              	call    DetectAC97
   128 0000002E 731B                    	jnc     short GetFileName
   129                                  
   130                                  _dev_not_ready:
   131                                  ; couldn't find the audio device!
   132                                  	sys	_msg, noDevMsg, 255, 0Fh
   133                              <1> 
   134                              <1> 
   135                              <1> 
   136                              <1> 
   137                              <1>  %if %0 >= 2
   138 00000030 BB[86070000]        <1>  mov ebx, %2
   139                              <1>  %if %0 >= 3
   140 00000035 B9FF000000          <1>  mov ecx, %3
   141                              <1>  %if %0 = 4
   142 0000003A BA0F000000          <1>  mov edx, %4
   143                              <1>  %endif
   144                              <1>  %endif
   145                              <1>  %endif
   146 0000003F B823000000          <1>  mov eax, %1
   147                              <1> 
   148 00000044 CD40                <1>  int 40h
   149 00000046 E994010000                      jmp     Exit
   150                                  
   151                                  GetFileName:  
   152 0000004B 89E6                    	mov	esi, esp
   153 0000004D AD                      	lodsd
   154 0000004E 83F802                  	cmp	eax, 2 ; two arguments 
   155                                  	       ; (program file name & mod file name)
   156 00000051 0F8296010000            	jb	pmsg_usage ; nothing to do
   157                                  
   158 00000057 AD                      	lodsd ; program file name address 
   159 00000058 AD                      	lodsd ; mod file name address (file to be read)
   160 00000059 89C6                    	mov	esi, eax
   161 0000005B BF[04090000]            	mov	edi, wav_file_name
   162                                  ScanName:       
   163 00000060 AC                      	lodsb
   164 00000061 84C0                    	test	al, al
   165 00000063 0F8484010000            	je	pmsg_usage
   166 00000069 3C20                    	cmp	al, 20h
   167 0000006B 74F3                    	je	short ScanName	; scan start of name.
   168 0000006D AA                      	stosb
   169 0000006E B4FF                    	mov	ah, 0FFh
   170                                  a_0:	
   171 00000070 FEC4                    	inc	ah
   172                                  a_1:
   173 00000072 AC                      	lodsb
   174 00000073 AA                      	stosb
   175 00000074 3C2E                    	cmp	al, '.'
   176 00000076 74F8                    	je	short a_0	
   177 00000078 20C0                    	and	al, al
   178 0000007A 75F6                    	jnz	short a_1
   179                                  
   180 0000007C 08E4                    	or	ah, ah		; if period NOT found,
   181 0000007E 750B                    	jnz	short _1 	; then add a .WAV extension.
   182                                  SetExt:
   183 00000080 4F                      	dec	edi
   184 00000081 C7072E574156            	mov	dword [edi], '.WAV'
   185 00000087 C6470400                	mov	byte [edi+4], 0
   186                                  _1:
   187                                  	; Allocate Audio Buffer (for user)
   188                                  	sys	_audio, 0200h, BUFFERSIZE, audio_buffer
   189                              <1> 
   190                              <1> 
   191                              <1> 
   192                              <1> 
   193                              <1>  %if %0 >= 2
   194 0000008B BB00020000          <1>  mov ebx, %2
   195                              <1>  %if %0 >= 3
   196 00000090 B900800000          <1>  mov ecx, %3
   197                              <1>  %if %0 = 4
   198 00000095 BA[00100000]        <1>  mov edx, %4
   199                              <1>  %endif
   200                              <1>  %endif
   201                              <1>  %endif
   202 0000009A B820000000          <1>  mov eax, %1
   203                              <1> 
   204 0000009F CD40                <1>  int 40h
   205 000000A1 731B                    	jnc	short _2
   206                                  error_exit:
   207                                  	sys	_msg, trdos386_err_msg, 255, 0Eh
   208                              <1> 
   209                              <1> 
   210                              <1> 
   211                              <1> 
   212                              <1>  %if %0 >= 2
   213 000000A3 BB[CA070000]        <1>  mov ebx, %2
   214                              <1>  %if %0 >= 3
   215 000000A8 B9FF000000          <1>  mov ecx, %3
   216                              <1>  %if %0 = 4
   217 000000AD BA0E000000          <1>  mov edx, %4
   218                              <1>  %endif
   219                              <1>  %endif
   220                              <1>  %endif
   221 000000B2 B823000000          <1>  mov eax, %1
   222                              <1> 
   223 000000B7 CD40                <1>  int 40h
   224 000000B9 E921010000              	jmp	Exit
   225                                  _2:
   226                                  	; DIRECT CGA (TEXT MODE) MEMORY ACCESS
   227                                  	; bl = 0, bh = 4
   228                                  	; Direct access/map to CGA (Text) memory (0B8000h)
   229                                  
   230                                  	sys	_video, 0400h
   231                              <1> 
   232                              <1> 
   233                              <1> 
   234                              <1> 
   235                              <1>  %if %0 >= 2
   236 000000BE BB00040000          <1>  mov ebx, %2
   237                              <1>  %if %0 >= 3
   238                              <1>  mov ecx, %3
   239                              <1>  %if %0 = 4
   240                              <1>  mov edx, %4
   241                              <1>  %endif
   242                              <1>  %endif
   243                              <1>  %endif
   244 000000C3 B81F000000          <1>  mov eax, %1
   245                              <1> 
   246 000000C8 CD40                <1>  int 40h
   247 000000CA 3D00800B00              	cmp	eax, 0B8000h
   248 000000CF 75D2                    	jne	short error_exit
   249                                  
   250                                  	; Initialize Audio Device (bh = 3)
   251                                  	sys	_audio, 0301h, 0, audio_int_handler 
   252                              <1> 
   253                              <1> 
   254                              <1> 
   255                              <1> 
   256                              <1>  %if %0 >= 2
   257 000000D1 BB01030000          <1>  mov ebx, %2
   258                              <1>  %if %0 >= 3
   259 000000D6 B900000000          <1>  mov ecx, %3
   260                              <1>  %if %0 = 4
   261 000000DB BA[AA020000]        <1>  mov edx, %4
   262                              <1>  %endif
   263                              <1>  %endif
   264                              <1>  %endif
   265 000000E0 B820000000          <1>  mov eax, %1
   266                              <1> 
   267 000000E5 CD40                <1>  int 40h
   268                                  ;	jc	short error_exit
   269                                  _3:
   270 000000E7 E85D030000              	call	write_audio_dev_info 
   271                                  
   272                                  ; open the file
   273                                          ; open existing file
   274 000000EC E821010000                      call    openFile ; no error? ok.
   275 000000F1 731B                            jnc     short _gsr
   276                                  
   277                                  ; file not found!
   278                                  	sys	_msg, noFileErrMsg, 255, 0Fh
   279                              <1> 
   280                              <1> 
   281                              <1> 
   282                              <1> 
   283                              <1>  %if %0 >= 2
   284 000000F3 BB[B1070000]        <1>  mov ebx, %2
   285                              <1>  %if %0 >= 3
   286 000000F8 B9FF000000          <1>  mov ecx, %3
   287                              <1>  %if %0 = 4
   288 000000FD BA0F000000          <1>  mov edx, %4
   289                              <1>  %endif
   290                              <1>  %endif
   291                              <1>  %endif
   292 00000102 B823000000          <1>  mov eax, %1
   293                              <1> 
   294 00000107 CD40                <1>  int 40h
   295 00000109 E9D1000000                      jmp     Exit
   296                                  
   297                                  _gsr:  
   298 0000010E E839010000                     	call    getSampleRate		; read the sample rate
   299                                                                          ; pass it onto codec.
   300 00000113 0F82C6000000            	jc	Exit
   301                                  
   302 00000119 66A3[E2080000]          	mov	[sample_rate], ax
   303 0000011F 880D[E0080000]          	mov	[stmo], cl
   304 00000125 8815[E1080000]          	mov	[bps], dl
   305                                  
   306                                  	; 06/06/2017
   307                                  	sys	_audio, 0E00h ; get audio controller info
   308                              <1> 
   309                              <1> 
   310                              <1> 
   311                              <1> 
   312                              <1>  %if %0 >= 2
   313 0000012B BB000E0000          <1>  mov ebx, %2
   314                              <1>  %if %0 >= 3
   315                              <1>  mov ecx, %3
   316                              <1>  %if %0 = 4
   317                              <1>  mov edx, %4
   318                              <1>  %endif
   319                              <1>  %endif
   320                              <1>  %endif
   321 00000130 B820000000          <1>  mov eax, %1
   322                              <1> 
   323 00000135 CD40                <1>  int 40h
   324 00000137 0F8266FFFFFF            	jc	error_exit
   325                                  
   326                                  	;cmp	ah, 2 ; ICH ? (Intel AC'97 Audio Controller)
   327                                  	;jne	_dev_not_ready	
   328                                  
   329                                  	; EAX = IRQ Number in AL
   330                                  	;	Audio Device Number in AH 
   331                                  	; EBX = DEV/VENDOR ID
   332                                  	;       (DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV)
   333                                  	; ECX = BUS/DEV/FN 
   334                                  	;       (00000000BBBBBBBBDDDDDFFF00000000)
   335                                  	; EDX = NABMBAR/NAMBAR (for AC97)
   336                                  	;      (Low word, DX = NAMBAR address)
   337                                  	; EDX = Base IO Addr (DX) for SB16 & VT8233
   338                                  
   339 0000013D A2[56090000]            	mov	[ac97_int_ln_reg], al
   340 00000142 891D[58090000]          	mov	[dev_vendor], ebx
   341 00000148 890D[5C090000]          	mov	[bus_dev_fn], ecx
   342                                  	;mov	[ac97_NamBar], dx
   343                                  	;shr	dx, 16
   344                                  	;mov	[ac97_NabmBar], dx
   345 0000014E 8915[60090000]          	mov	[ac97_NamBar], edx	
   346                                    
   347 00000154 E8D2030000              	call	write_ac97_pci_dev_info
   348                                  
   349                                  	; 01/05/2017
   350 00000159 E802030000              	call	write_wav_file_info
   351                                  	
   352                                  PlayNow: 
   353                                  ;
   354                                  ; position file pointer to start in actual wav data
   355                                  ; MUCH improvement should really be done here to check if sample size is
   356                                  ; supported, make sure there are 2 channels, etc.  
   357                                  ;
   358                                          ;mov     ah, 42h
   359                                          ;mov     al, 0	; from start of file
   360                                          ;mov     bx, [FileHandle]
   361                                          ;xor     cx, cx
   362                                          ;mov     dx, 44	; jump past .wav/riff header
   363                                          ;int     21h
   364                                  
   365                                  	sys	_seek, [FileHandle], 44, 0
   366                              <1> 
   367                              <1> 
   368                              <1> 
   369                              <1> 
   370                              <1>  %if %0 >= 2
   371 0000015E 8B1D[F2060000]      <1>  mov ebx, %2
   372                              <1>  %if %0 >= 3
   373 00000164 B92C000000          <1>  mov ecx, %3
   374                              <1>  %if %0 = 4
   375 00000169 BA00000000          <1>  mov edx, %4
   376                              <1>  %endif
   377                              <1>  %endif
   378                              <1>  %endif
   379 0000016E B813000000          <1>  mov eax, %1
   380                              <1> 
   381 00000173 CD40                <1>  int 40h
   382                                  
   383                                  	sys	_msg, nextline, 255, 07h ; 01/05/2017
   384                              <1> 
   385                              <1> 
   386                              <1> 
   387                              <1> 
   388                              <1>  %if %0 >= 2
   389 00000175 BB[36080000]        <1>  mov ebx, %2
   390                              <1>  %if %0 >= 3
   391 0000017A B9FF000000          <1>  mov ecx, %3
   392                              <1>  %if %0 = 4
   393 0000017F BA07000000          <1>  mov edx, %4
   394                              <1>  %endif
   395                              <1>  %endif
   396                              <1>  %endif
   397 00000184 B823000000          <1>  mov eax, %1
   398                              <1> 
   399 00000189 CD40                <1>  int 40h
   400                                  
   401                                  	; 13/06/2017
   402                                  	;mov	byte [factor], 0
   403 0000018B 803D[E1080000]10        	cmp	byte [bps], 16
   404 00000192 7406                    	je	short _set_factor_0
   405 00000194 FE05[57090000]          	inc	byte [factor] ; 1
   406                                  _set_factor_0:	
   407 0000019A 803D[E0080000]02        	cmp	byte [stmo], 2
   408 000001A1 7407                    	je	short _set_factor_1
   409 000001A3 8005[57090000]02        	add	byte [factor], 2 ; 2 or 3
   410                                  _set_factor_1:	
   411                                  
   412                                  ; play the .wav file.  Most of the good stuff is in here.
   413                                  
   414 000001AA E821020000                      call    PlayWav
   415                                  
   416                                  ; close the .wav file and exit.
   417                                  
   418                                  StopPlaying:
   419                                  	; Stop Playing
   420                                  	sys	_audio, 0700h
   421                              <1> 
   422                              <1> 
   423                              <1> 
   424                              <1> 
   425                              <1>  %if %0 >= 2
   426 000001AF BB00070000          <1>  mov ebx, %2
   427                              <1>  %if %0 >= 3
   428                              <1>  mov ecx, %3
   429                              <1>  %if %0 = 4
   430                              <1>  mov edx, %4
   431                              <1>  %endif
   432                              <1>  %endif
   433                              <1>  %endif
   434 000001B4 B820000000          <1>  mov eax, %1
   435                              <1> 
   436 000001B9 CD40                <1>  int 40h
   437                                  	; Cancel callback service (for user)
   438                                  	sys	_audio, 0900h
   439                              <1> 
   440                              <1> 
   441                              <1> 
   442                              <1> 
   443                              <1>  %if %0 >= 2
   444 000001BB BB00090000          <1>  mov ebx, %2
   445                              <1>  %if %0 >= 3
   446                              <1>  mov ecx, %3
   447                              <1>  %if %0 = 4
   448                              <1>  mov edx, %4
   449                              <1>  %endif
   450                              <1>  %endif
   451                              <1>  %endif
   452 000001C0 B820000000          <1>  mov eax, %1
   453                              <1> 
   454 000001C5 CD40                <1>  int 40h
   455                                  	; Deallocate Audio Buffer (for user)
   456                                  	sys	_audio, 0A00h
   457                              <1> 
   458                              <1> 
   459                              <1> 
   460                              <1> 
   461                              <1>  %if %0 >= 2
   462 000001C7 BB000A0000          <1>  mov ebx, %2
   463                              <1>  %if %0 >= 3
   464                              <1>  mov ecx, %3
   465                              <1>  %if %0 = 4
   466                              <1>  mov edx, %4
   467                              <1>  %endif
   468                              <1>  %endif
   469                              <1>  %endif
   470 000001CC B820000000          <1>  mov eax, %1
   471                              <1> 
   472 000001D1 CD40                <1>  int 40h
   473                                  	; Disable Audio Device
   474                                  	sys	_audio, 0C00h
   475                              <1> 
   476                              <1> 
   477                              <1> 
   478                              <1> 
   479                              <1>  %if %0 >= 2
   480 000001D3 BB000C0000          <1>  mov ebx, %2
   481                              <1>  %if %0 >= 3
   482                              <1>  mov ecx, %3
   483                              <1>  %if %0 = 4
   484                              <1>  mov edx, %4
   485                              <1>  %endif
   486                              <1>  %endif
   487                              <1>  %endif
   488 000001D8 B820000000          <1>  mov eax, %1
   489                              <1> 
   490 000001DD CD40                <1>  int 40h
   491                                  Exit:  
   492 000001DF E847000000                      call    closeFile
   493                                           
   494                                  	sys	_exit	; Bye!
   495                              <1> 
   496                              <1> 
   497                              <1> 
   498                              <1> 
   499                              <1>  %if %0 >= 2
   500                              <1>  mov ebx, %2
   501                              <1>  %if %0 >= 3
   502                              <1>  mov ecx, %3
   503                              <1>  %if %0 = 4
   504                              <1>  mov edx, %4
   505                              <1>  %endif
   506                              <1>  %endif
   507                              <1>  %endif
   508 000001E4 B801000000          <1>  mov eax, %1
   509                              <1> 
   510 000001E9 CD40                <1>  int 40h
   511                                  here:
   512 000001EB EBFE                    	jmp	short here
   513                                  
   514                                  pmsg_usage:
   515                                  	sys	_msg, msg_usage, 255, 0Bh
   516                              <1> 
   517                              <1> 
   518                              <1> 
   519                              <1> 
   520                              <1>  %if %0 >= 2
   521 000001ED BB[67070000]        <1>  mov ebx, %2
   522                              <1>  %if %0 >= 3
   523 000001F2 B9FF000000          <1>  mov ecx, %3
   524                              <1>  %if %0 = 4
   525 000001F7 BA0B000000          <1>  mov edx, %4
   526                              <1>  %endif
   527                              <1>  %endif
   528                              <1>  %endif
   529 000001FC B823000000          <1>  mov eax, %1
   530                              <1> 
   531 00000201 CD40                <1>  int 40h
   532 00000203 EBDA                    	jmp	short Exit
   533                                  
   534                                  DetectAC97:
   535                                  	; Detect (BH=1) AC'97 (BL=2) Audio Device
   536                                          sys	_audio, 0102h
   537                              <1> 
   538                              <1> 
   539                              <1> 
   540                              <1> 
   541                              <1>  %if %0 >= 2
   542 00000205 BB02010000          <1>  mov ebx, %2
   543                              <1>  %if %0 >= 3
   544                              <1>  mov ecx, %3
   545                              <1>  %if %0 = 4
   546                              <1>  mov edx, %4
   547                              <1>  %endif
   548                              <1>  %endif
   549                              <1>  %endif
   550 0000020A B820000000          <1>  mov eax, %1
   551                              <1> 
   552 0000020F CD40                <1>  int 40h
   553 00000211 C3                      	retn
   554                                  
   555                                  ;open or create file
   556                                  ;
   557                                  ;input: ds:dx-->filename (asciiz)
   558                                  ;       al=file Mode (create or open)
   559                                  ;output: none  cs:[FileHandle] filled
   560                                  ;
   561                                  openFile:
   562                                  	;mov	ah, 3Bh	; start with a mode
   563                                  	;add	ah, al	; add in create or open mode
   564                                  	;xor	cx, cx
   565                                  	;int	21h
   566                                  	;jc	short _of1
   567                                  	;;mov	[cs:FileHandle], ax
   568                                  
   569                                  	sys	_open, wav_file_name, 0
   570                              <1> 
   571                              <1> 
   572                              <1> 
   573                              <1> 
   574                              <1>  %if %0 >= 2
   575 00000212 BB[04090000]        <1>  mov ebx, %2
   576                              <1>  %if %0 >= 3
   577 00000217 B900000000          <1>  mov ecx, %3
   578                              <1>  %if %0 = 4
   579                              <1>  mov edx, %4
   580                              <1>  %endif
   581                              <1>  %endif
   582                              <1>  %endif
   583 0000021C B805000000          <1>  mov eax, %1
   584                              <1> 
   585 00000221 CD40                <1>  int 40h
   586 00000223 7205                    	jc	short _of1
   587                                  
   588 00000225 A3[F2060000]            	mov	[FileHandle], eax
   589                                  _of1:
   590 0000022A C3                      	retn
   591                                  
   592                                  ; close the currently open file
   593                                  ; input: none, uses cs:[FileHandle]
   594                                  closeFile:
   595 0000022B 833D[F2060000]FF        	cmp	dword [FileHandle], -1
   596 00000232 7417                    	je	short _cf1
   597                                  	;mov    bx, [FileHandle]  
   598                                  	;mov    ax, 3E00h
   599                                          ;int    21h              ;close file
   600                                  
   601                                  	sys	_close, [FileHandle]
   602                              <1> 
   603                              <1> 
   604                              <1> 
   605                              <1> 
   606                              <1>  %if %0 >= 2
   607 00000234 8B1D[F2060000]      <1>  mov ebx, %2
   608                              <1>  %if %0 >= 3
   609                              <1>  mov ecx, %3
   610                              <1>  %if %0 = 4
   611                              <1>  mov edx, %4
   612                              <1>  %endif
   613                              <1>  %endif
   614                              <1>  %endif
   615 0000023A B806000000          <1>  mov eax, %1
   616                              <1> 
   617 0000023F CD40                <1>  int 40h
   618 00000241 C705[F2060000]FFFF-     	mov 	dword [FileHandle], -1
   619 00000249 FFFF               
   620                                  _cf1:
   621 0000024B C3                      	retn
   622                                  
   623                                  getSampleRate:
   624                                  	
   625                                  ; reads the sample rate from the .wav file.
   626                                  ; entry: none - assumes file is already open
   627                                  ; exit: ax = sample rate (11025, 22050, 44100, 48000)
   628                                  ;	cx = number of channels (mono=1, stereo=2)
   629                                  ;	dx = bits per sample (8, 16)
   630                                  
   631 0000024C 53                      	push    ebx
   632                                  
   633                                          ;mov	ah, 42h
   634                                          ;mov	al, 0	; from start of file
   635                                          ;mov	bx, [FileHandle]
   636                                          ;xor	cx, cx
   637                                          ;mov	dx, 08h	; "WAVE"
   638                                          ;int	21h
   639                                  	
   640                                  	sys	_seek, [FileHandle], 8, 0
   641                              <1> 
   642                              <1> 
   643                              <1> 
   644                              <1> 
   645                              <1>  %if %0 >= 2
   646 0000024D 8B1D[F2060000]      <1>  mov ebx, %2
   647                              <1>  %if %0 >= 3
   648 00000253 B908000000          <1>  mov ecx, %3
   649                              <1>  %if %0 = 4
   650 00000258 BA00000000          <1>  mov edx, %4
   651                              <1>  %endif
   652                              <1>  %endif
   653                              <1>  %endif
   654 0000025D B813000000          <1>  mov eax, %1
   655                              <1> 
   656 00000262 CD40                <1>  int 40h
   657                                  
   658                                          ;mov	dx, smpRBuff
   659                                          ;mov	cx, 28	; 28 bytes
   660                                  	;mov	ah, 3fh
   661                                          ;int	21h
   662                                  
   663                                  	sys	_read, [FileHandle], smpRBuff, 28
   664                              <1> 
   665                              <1> 
   666                              <1> 
   667                              <1> 
   668                              <1>  %if %0 >= 2
   669 00000264 8B1D[F2060000]      <1>  mov ebx, %2
   670                              <1>  %if %0 >= 3
   671 0000026A B9[E8080000]        <1>  mov ecx, %3
   672                              <1>  %if %0 = 4
   673 0000026F BA1C000000          <1>  mov edx, %4
   674                              <1>  %endif
   675                              <1>  %endif
   676                              <1>  %endif
   677 00000274 B803000000          <1>  mov eax, %1
   678                              <1> 
   679 00000279 CD40                <1>  int 40h
   680                                  
   681 0000027B 813D[E8080000]5741-     	cmp	dword [smpRBuff], 'WAVE'
   682 00000283 5645               
   683 00000285 7520                    	jne	short gsr_stc
   684                                  
   685 00000287 66833D[F4080000]01      	cmp	word [smpRBuff+12], 1	; Offset 20, must be 1 (= PCM)
   686 0000028F 7516                    	jne	short gsr_stc
   687                                  
   688 00000291 668B0D[F6080000]        	mov	cx, [smpRBuff+14]	; return num of channels in CX
   689 00000298 66A1[F8080000]                  mov     ax, [smpRBuff+16]	; return sample rate in AX
   690 0000029E 668B15[02090000]        	mov	dx, [smpRBuff+26]	; return bits per sample value in DX
   691                                  gsr_retn:
   692 000002A5 5B                              pop     ebx
   693 000002A6 C3                              retn
   694                                  gsr_stc:
   695 000002A7 F9                      	stc
   696 000002A8 EBFB                    	jmp	short gsr_retn
   697                                  
   698                                  audio_int_handler:
   699 000002AA C605[E7080000]01        	mov	byte [srb], 1 ; interrupt (or signal response byte)
   700                                  
   701 000002B1 803D[E4080000]01        	cmp	byte [cbs_busy], 1
   702 000002B8 732A                    	jnb	short _callback_bsy_retn
   703                                  
   704 000002BA C605[E4080000]01        	mov	byte [cbs_busy], 1
   705                                  
   706 000002C1 A0[E5080000]            	mov	al, [half_buff]
   707                                  
   708 000002C6 3C01                    	cmp	al, 1
   709 000002C8 7213                    	jb	short _callback_retn
   710                                  
   711 000002CA 8035[E5080000]03        	xor	byte [half_buff], 3 ; 2->1, 1->2
   712                                  
   713 000002D1 BB00800B00              	mov	ebx, 0B8000h ; video display page address
   714 000002D6 B44E                    	mov	ah, 4Eh
   715 000002D8 0430                    	add	al, '0'
   716 000002DA 668903                  	mov	[ebx], ax ; show playing buffer (1, 2)
   717                                  _callback_retn:
   718 000002DD C605[E4080000]00        	mov	byte [cbs_busy], 0
   719                                  _callback_bsy_retn:
   720                                  	sys	_rele ; return from callback service 
   721                              <1> 
   722                              <1> 
   723                              <1> 
   724                              <1> 
   725                              <1>  %if %0 >= 2
   726                              <1>  mov ebx, %2
   727                              <1>  %if %0 >= 3
   728                              <1>  mov ecx, %3
   729                              <1>  %if %0 = 4
   730                              <1>  mov edx, %4
   731                              <1>  %endif
   732                              <1>  %endif
   733                              <1>  %endif
   734 000002E4 B827000000          <1>  mov eax, %1
   735                              <1> 
   736 000002E9 CD40                <1>  int 40h
   737                                  	; we must not come here !
   738                                  	sys	_exit
   739                              <1> 
   740                              <1> 
   741                              <1> 
   742                              <1> 
   743                              <1>  %if %0 >= 2
   744                              <1>  mov ebx, %2
   745                              <1>  %if %0 >= 3
   746                              <1>  mov ecx, %3
   747                              <1>  %if %0 = 4
   748                              <1>  mov edx, %4
   749                              <1>  %endif
   750                              <1>  %endif
   751                              <1>  %endif
   752 000002EB B801000000          <1>  mov eax, %1
   753                              <1> 
   754 000002F0 CD40                <1>  int 40h
   755                                  	
   756                                  loadFromFile:
   757                                  	; 13/06/2017
   758 000002F2 BA00800000              	mov	edx, BUFFERSIZE
   759 000002F7 8A0D[57090000]          	mov	cl, [factor]
   760 000002FD 20C9                    	and	cl, cl
   761 000002FF 740E                    	jz	short _set_factor_2
   762 00000301 BF[00900000]            	mov     edi, temp_buffer
   763                                  	; bit 0 = 8 bit
   764                                  	; bit 1 = mono
   765 00000306 80C101                  	add	cl, 1 ; 1 -> 2, 2 -> 3, 3 -> 4
   766 00000309 D0E9                    	shr	cl, 1 ; 4 -> 2, 3 -> 1, 2 -> 1
   767 0000030B D3EA                    	shr	edx, cl
   768 0000030D EB05                    	jmp	short _set_factor_3
   769                                  _set_factor_2:
   770                                  	; load 32768 bytes into audio buffer
   771                                  	; (for the first half of DMA buffer)
   772 0000030F BF[00100000]            	mov     edi, audio_buffer
   773                                  _set_factor_3:
   774                                  	; 17/03/2017
   775                                  	; edi = buffer address
   776                                  	; edx = buffer size
   777                                  	; 10/03/2017
   778                                          ;push	eax
   779                                          ;push	ecx
   780                                          ;push	edx
   781                                  	;push	ebx
   782 00000314 F605[E6080000]01                test    byte [flags], ENDOFFILE	; have we already read the
   783 0000031B F9                              stc			; last of the file?
   784 0000031C 7577                            jnz     short endLFF_retn ; 13/06/2017
   785                                  	;clc
   786                                  	; load file into memory
   787                                  	sys 	_read, [FileHandle], edi
   788                              <1> 
   789                              <1> 
   790                              <1> 
   791                              <1> 
   792                              <1>  %if %0 >= 2
   793 0000031E 8B1D[F2060000]      <1>  mov ebx, %2
   794                              <1>  %if %0 >= 3
   795 00000324 89F9                <1>  mov ecx, %3
   796                              <1>  %if %0 = 4
   797                              <1>  mov edx, %4
   798                              <1>  %endif
   799                              <1>  %endif
   800                              <1>  %endif
   801 00000326 B803000000          <1>  mov eax, %1
   802                              <1> 
   803 0000032B CD40                <1>  int 40h
   804 0000032D 89D1                    	mov	ecx, edx
   805 0000032F 720A                    	jc	short padfill ; error !
   806                                  
   807 00000331 21C0                    	and	eax, eax
   808 00000333 7406                    	jz	short padfill
   809 00000335 29C1                    	sub	ecx, eax
   810 00000337 7416                    	jz	short endLFF
   811 00000339 01C7                    	add	edi, eax  
   812                                  padfill:
   813 0000033B 803D[E1080000]10        	cmp 	byte [bps], 16
   814 00000342 7452                    	je	short _5
   815                                  	; Minimum Value = 0
   816 00000344 30C0                            xor     al, al
   817 00000346 F3AA                    	rep	stosb
   818                                  _4:
   819                                          ;clc			; don't exit with CY yet.
   820 00000348 800D[E6080000]01                or	byte [flags], ENDOFFILE	; end of file flag
   821                                  endLFF:
   822                                  	; 17/06/2017
   823                                  	; 13/06/2017
   824                                  	; bit 0 = 8bit (1), 16bit (0)
   825                                  	; bit 1 = mono (1), stereo (0)
   826 0000034F A0[57090000]            	mov	al, [factor]
   827 00000354 08C0                    	or	al, al
   828 00000356 743D                    	jz	short endLFF_retn
   829 00000358 BE[00900000]            	mov	esi, temp_buffer
   830 0000035D BF[00100000]            	mov	edi, audio_buffer
   831 00000362 B900200000              	mov	ecx, BUFFERSIZE / 4
   832 00000367 3C02                    	cmp	al, 2
   833 00000369 7736                    	ja	short _set_factor_5 ; 8 bit mono
   834 0000036B 7453                    	je	short _set_factor_6 ; 16 bit mono
   835                                  	; 8 bit stereo
   836                                  _set_factor_4:
   837 0000036D AC                      	lodsb
   838 0000036E 20C0                    	and	al, al
   839 00000370 7507                    	jnz	short _set_factor_4a
   840 00000372 BA00000080              	mov	edx, 80000000h
   841 00000377 EB07                    	jmp	short _set_factor_4b
   842                                  
   843                                  _set_factor_4a:	
   844 00000379 2C80                    	sub	al, 80h
   845 0000037B 88C2                    	mov	dl, al
   846 0000037D C1E218                  	shl	edx, 24 
   847                                  _set_factor_4b:
   848 00000380 AC                      	lodsb	
   849 00000381 08C0                    	or	al, al
   850 00000383 7506                    	jnz	short _set_factor_4c
   851 00000385 66BA0080                	mov	dx, 8000h
   852 00000389 EB04                    	jmp	short _set_factor_4d
   853                                  _set_factor_4c:
   854 0000038B 2C80                    	sub	al, 80h
   855 0000038D 88C6                    	mov	dh, al	
   856                                  _set_factor_4d:
   857 0000038F 89D0                    	mov	eax, edx
   858 00000391 AB                      	stosd
   859 00000392 E2D9                    	loop 	_set_factor_4
   860                                  	;jmp	short _set_factor_7
   861                                  
   862 00000394 F8                      	clc
   863                                  
   864                                  endLFF_retn:
   865                                  	;pop	ebx
   866                                  	;pop	edx
   867                                          ;pop	ecx
   868                                          ;pop	eax
   869 00000395 C3                              retn
   870                                  _5:
   871                                  	; Minimum value = 8000h (-32768)
   872 00000396 D1E9                    	shr	ecx, 1 
   873 00000398 66B80080                	mov	ax, 8000h ; -32768
   874 0000039C F366AB                  	rep	stosw
   875 0000039F EBA7                    	jmp	short _4
   876                                  
   877                                  _set_factor_5:	
   878                                  	; 8 bit mono	
   879 000003A1 AC                      	lodsb
   880 000003A2 20C0                    	and	al, al
   881 000003A4 7506                    	jnz	short _set_factor_5a
   882 000003A6 66B80080                	mov	ax, 8000h
   883 000003AA EB06                    	jmp	short _set_factor_5b
   884                                  _set_factor_5a:
   885 000003AC 2C80                    	sub	al, 80h	
   886 000003AE 88C4                    	mov	ah, al
   887 000003B0 28C0                    	sub	al, al
   888                                  _set_factor_5b:	
   889 000003B2 6689C2                  	mov	dx, ax
   890 000003B5 C1E010                  	shl	eax, 16
   891 000003B8 6689D0                  	mov	ax, dx
   892 000003BB AB                      	stosd
   893 000003BC E2E3                    	loop 	_set_factor_5
   894 000003BE EB0E                    	jmp	short _set_factor_7
   895                                  
   896                                  _set_factor_6:
   897                                  	; 16 bit mono
   898 000003C0 66AD                    	lodsw
   899 000003C2 6689C2                  	mov	dx, ax
   900 000003C5 C1E010                  	shl	eax, 16
   901 000003C8 6689D0                  	mov	ax, dx
   902 000003CB AB                      	stosd
   903 000003CC E2F2                    	loop 	_set_factor_6
   904                                  
   905                                  _set_factor_7:
   906 000003CE F8                      	clc	 ; 13/06/2017	
   907                                  	;pop	ebx
   908                                  	;pop	edx
   909                                          ;pop	ecx
   910                                          ;pop	eax
   911 000003CF C3                              retn
   912                                  
   913                                  PlayWav:
   914                                  	; 13/06/2017
   915                                  	; Convert 8 bit samples to 16 bit samples
   916                                  	; and convert mono samples to stereo samples
   917                                  
   918                                  	;mov	edi, audio_buffer
   919                                  	;mov	edx, BUFFERSIZE
   920 000003D0 E81DFFFFFF              	call	loadFromFile
   921 000003D5 0F82C8FCFFFF            	jc	error_exit
   922 000003DB C605[E5080000]01        	mov	byte [half_buff], 1 ; (DMA) Buffer 1
   923                                  
   924                                  	; Set Master Volume Level (BL=0 or 80h)
   925                                  	; 	 	for next playing (BL>=80h)
   926                                  	sys	_audio, 0B80h, 1D1Dh
   927                              <1> 
   928                              <1> 
   929                              <1> 
   930                              <1> 
   931                              <1>  %if %0 >= 2
   932 000003E2 BB800B0000          <1>  mov ebx, %2
   933                              <1>  %if %0 >= 3
   934 000003E7 B91D1D0000          <1>  mov ecx, %3
   935                              <1>  %if %0 = 4
   936                              <1>  mov edx, %4
   937                              <1>  %endif
   938                              <1>  %endif
   939                              <1>  %endif
   940 000003EC B820000000          <1>  mov eax, %1
   941                              <1> 
   942 000003F1 CD40                <1>  int 40h
   943                                  
   944                                  	; Start	to play
   945 000003F3 A0[E1080000]            	mov	al, [bps]
   946 000003F8 C0E804                  	shr	al, 4 ; 8 -> 0, 16 -> 1
   947 000003FB D0E0                    	shl	al, 1 ; 16 -> 2, 8 -> 0
   948 000003FD 8A1D[E0080000]          	mov	bl, [stmo]
   949 00000403 FECB                    	dec	bl
   950 00000405 08C3                    	or	bl, al
   951 00000407 668B0D[E2080000]        	mov	cx, [sample_rate] 
   952 0000040E B704                    	mov	bh, 4 ; start to play	
   953                                  	sys	_audio
   954                              <1> 
   955                              <1> 
   956                              <1> 
   957                              <1> 
   958                              <1>  %if %0 >= 2
   959                              <1>  mov ebx, %2
   960                              <1>  %if %0 >= 3
   961                              <1>  mov ecx, %3
   962                              <1>  %if %0 = 4
   963                              <1>  mov edx, %4
   964                              <1>  %endif
   965                              <1>  %endif
   966                              <1>  %endif
   967 00000410 B820000000          <1>  mov eax, %1
   968                              <1> 
   969 00000415 CD40                <1>  int 40h
   970                                  
   971                                  	;mov	ebx, 0B8000h ; video display page address
   972                                  	;mov	ah, 4Eh
   973                                  	;mov	al, [half_buffer]
   974                                  	;mov	[ebx], ax ; show playing buffer (1, 2)
   975                                  
   976                                  	;; load 32768 bytes into audio buffer
   977                                  	;; (for the second half of DMA buffer)
   978                                  	;; 20/05/2017
   979                                  	;mov	edi, audio_buffer
   980                                  	;mov	edx, BUFFERSIZE
   981                                  	;call	loadFromFile
   982                                  	;jc	short p_return
   983                                  	;mov	byte [half_buff], 2 ; (DMA) Buffer 2
   984                                  
   985 00000417 C605[E7080000]01        	mov	byte [srb], 1
   986                                  
   987                                  p_loop:
   988 0000041E B401                    	mov     ah, 1		; any key pressed?
   989 00000420 CD32                    	int     32h		; no, Loop.
   990 00000422 740C                    	jz	short q_loop
   991                                  
   992 00000424 B400                    	mov     ah, 0		; flush key buffer...
   993 00000426 CD32                    	int     32h
   994                                  p_return:
   995 00000428 C605[E5080000]00        	mov	byte [half_buff], 0
   996 0000042F C3                      	retn
   997                                  q_loop:
   998 00000430 803D[E7080000]00        	cmp	byte [srb], 0
   999 00000437 76E5                    	jna	short p_loop
  1000 00000439 C605[E7080000]00        	mov	byte [srb], 0
  1001                                  	;mov	edi, audio_buffer
  1002                                  	;mov	edx, BUFFERSIZE
  1003 00000440 E8ADFEFFFF              	call    loadFromFile
  1004 00000445 72E1                    	jc	short p_return
  1005                                  	;mov	byte [srb], 0
  1006 00000447 EBD5                    	jmp	short p_loop
  1007                                  
  1008                                  write_audio_dev_info:
  1009                                  	; EBX = Message address
  1010                                  	; ECX = Max. message length (or stop on ZERO character)
  1011                                  	;	(1 to 255)
  1012                                  	; DL  = Message color (07h = light gray, 0Fh = white) 
  1013                                       	sys 	_msg, msgAudioCardInfo, 255, 0Fh
  1014                              <1> 
  1015                              <1> 
  1016                              <1> 
  1017                              <1> 
  1018                              <1>  %if %0 >= 2
  1019 00000449 BB[3E070000]        <1>  mov ebx, %2
  1020                              <1>  %if %0 >= 3
  1021 0000044E B9FF000000          <1>  mov ecx, %3
  1022                              <1>  %if %0 = 4
  1023 00000453 BA0F000000          <1>  mov edx, %4
  1024                              <1>  %endif
  1025                              <1>  %endif
  1026                              <1>  %endif
  1027 00000458 B823000000          <1>  mov eax, %1
  1028                              <1> 
  1029 0000045D CD40                <1>  int 40h
  1030 0000045F C3                      	retn
  1031                                  
  1032                                  write_wav_file_info:
  1033                                  	; 01/05/2017
  1034                                  	sys	_msg, msgWavFileName, 255, 0Fh
  1035                              <1> 
  1036                              <1> 
  1037                              <1> 
  1038                              <1> 
  1039                              <1>  %if %0 >= 2
  1040 00000460 BB[EA070000]        <1>  mov ebx, %2
  1041                              <1>  %if %0 >= 3
  1042 00000465 B9FF000000          <1>  mov ecx, %3
  1043                              <1>  %if %0 = 4
  1044 0000046A BA0F000000          <1>  mov edx, %4
  1045                              <1>  %endif
  1046                              <1>  %endif
  1047                              <1>  %endif
  1048 0000046F B823000000          <1>  mov eax, %1
  1049                              <1> 
  1050 00000474 CD40                <1>  int 40h
  1051                                  	sys	_msg, wav_file_name, 255, 0Fh
  1052                              <1> 
  1053                              <1> 
  1054                              <1> 
  1055                              <1> 
  1056                              <1>  %if %0 >= 2
  1057 00000476 BB[04090000]        <1>  mov ebx, %2
  1058                              <1>  %if %0 >= 3
  1059 0000047B B9FF000000          <1>  mov ecx, %3
  1060                              <1>  %if %0 = 4
  1061 00000480 BA0F000000          <1>  mov edx, %4
  1062                              <1>  %endif
  1063                              <1>  %endif
  1064                              <1>  %endif
  1065 00000485 B823000000          <1>  mov eax, %1
  1066                              <1> 
  1067 0000048A CD40                <1>  int 40h
  1068                                  
  1069                                  write_sample_rate:
  1070                                  	; 01/05/2017
  1071 0000048C 66A1[E2080000]          	mov	ax, [sample_rate]
  1072                                  	; ax = sample rate (hertz)
  1073 00000492 31D2                    	xor	edx, edx
  1074 00000494 66B90A00                	mov	cx, 10
  1075 00000498 66F7F1                  	div	cx
  1076 0000049B 0015[0F080000]          	add	[msgHertz+4], dl
  1077 000004A1 29D2                    	sub	edx, edx
  1078 000004A3 66F7F1                  	div	cx
  1079 000004A6 0015[0E080000]          	add	[msgHertz+3], dl
  1080 000004AC 29D2                    	sub	edx, edx
  1081 000004AE 66F7F1                  	div	cx
  1082 000004B1 0015[0D080000]          	add	[msgHertz+2], dl
  1083 000004B7 29D2                    	sub	edx, edx
  1084 000004B9 66F7F1                  	div	cx
  1085 000004BC 0015[0C080000]          	add	[msgHertz+1], dl
  1086 000004C2 0005[0B080000]          	add	[msgHertz], al
  1087                                  	
  1088                                  	sys	_msg, msgSampleRate, 255, 0Fh
  1089                              <1> 
  1090                              <1> 
  1091                              <1> 
  1092                              <1> 
  1093                              <1>  %if %0 >= 2
  1094 000004C8 BB[FC070000]        <1>  mov ebx, %2
  1095                              <1>  %if %0 >= 3
  1096 000004CD B9FF000000          <1>  mov ecx, %3
  1097                              <1>  %if %0 = 4
  1098 000004D2 BA0F000000          <1>  mov edx, %4
  1099                              <1>  %endif
  1100                              <1>  %endif
  1101                              <1>  %endif
  1102 000004D7 B823000000          <1>  mov eax, %1
  1103                              <1> 
  1104 000004DC CD40                <1>  int 40h
  1105                                  
  1106 000004DE BE[26080000]            	mov	esi, msg16Bits
  1107 000004E3 803D[E1080000]10        	cmp	byte [bps], 16
  1108 000004EA 7405                    	je	short wsr_1
  1109 000004EC BE[16080000]            	mov	esi, msg8Bits
  1110                                  wsr_1:
  1111                                  	sys	_msg, esi, 255, 0Fh
  1112                              <1> 
  1113                              <1> 
  1114                              <1> 
  1115                              <1> 
  1116                              <1>  %if %0 >= 2
  1117 000004F1 89F3                <1>  mov ebx, %2
  1118                              <1>  %if %0 >= 3
  1119 000004F3 B9FF000000          <1>  mov ecx, %3
  1120                              <1>  %if %0 = 4
  1121 000004F8 BA0F000000          <1>  mov edx, %4
  1122                              <1>  %endif
  1123                              <1>  %endif
  1124                              <1>  %endif
  1125 000004FD B823000000          <1>  mov eax, %1
  1126                              <1> 
  1127 00000502 CD40                <1>  int 40h
  1128                                  
  1129 00000504 BE[1F080000]            	mov	esi, msgMono
  1130 00000509 803D[E0080000]01        	cmp	byte [stmo], 1
  1131 00000510 7405                    	je	short wsr_2
  1132 00000512 BE[30080000]            	mov	esi, msgStereo		
  1133                                  wsr_2:
  1134                                  	sys	_msg, esi, 255, 0Fh
  1135                              <1> 
  1136                              <1> 
  1137                              <1> 
  1138                              <1> 
  1139                              <1>  %if %0 >= 2
  1140 00000517 89F3                <1>  mov ebx, %2
  1141                              <1>  %if %0 >= 3
  1142 00000519 B9FF000000          <1>  mov ecx, %3
  1143                              <1>  %if %0 = 4
  1144 0000051E BA0F000000          <1>  mov edx, %4
  1145                              <1>  %endif
  1146                              <1>  %endif
  1147                              <1>  %endif
  1148 00000523 B823000000          <1>  mov eax, %1
  1149                              <1> 
  1150 00000528 CD40                <1>  int 40h
  1151 0000052A C3                              retn
  1152                                  
  1153                                  write_ac97_pci_dev_info:
  1154                                  	; 06/06/2017
  1155                                  	; 03/06/2017
  1156                                  	; BUS/DEV/FN
  1157                                  	;	00000000BBBBBBBBDDDDDFFF00000000
  1158                                  	; DEV/VENDOR
  1159                                  	;	DDDDDDDDDDDDDDDDVVVVVVVVVVVVVVVV
  1160                                  
  1161 0000052B 8B35[58090000]          	mov	esi, [dev_vendor]
  1162 00000531 89F0                    	mov	eax, esi
  1163 00000533 0FB6D8                  	movzx	ebx, al
  1164 00000536 88DA                    	mov	dl, bl
  1165 00000538 80E30F                  	and	bl, 0Fh
  1166 0000053B 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1167 00000541 A2[7E080000]            	mov	[msgVendorId+3], al
  1168 00000546 88D3                    	mov	bl, dl
  1169 00000548 C0EB04                  	shr	bl, 4
  1170 0000054B 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1171 00000551 A2[7D080000]            	mov	[msgVendorId+2], al
  1172 00000556 88E3                    	mov	bl, ah
  1173 00000558 88DA                    	mov	dl, bl
  1174 0000055A 80E30F                  	and	bl, 0Fh
  1175 0000055D 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1176 00000563 A2[7C080000]            	mov	[msgVendorId+1], al
  1177 00000568 88D3                    	mov	bl, dl
  1178 0000056A C0EB04                  	shr	bl, 4
  1179 0000056D 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1180 00000573 A2[7B080000]            	mov	[msgVendorId], al
  1181 00000578 C1E810                  	shr	eax, 16
  1182 0000057B 88C3                    	mov	bl, al
  1183 0000057D 88DA                    	mov	dl, bl
  1184 0000057F 80E30F                  	and	bl, 0Fh
  1185 00000582 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1186 00000588 A2[8F080000]            	mov	[msgDevId+3], al
  1187 0000058D 88D3                    	mov	bl, dl
  1188 0000058F C0EB04                  	shr	bl, 4
  1189 00000592 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1190 00000598 A2[8E080000]            	mov	[msgDevId+2], al
  1191 0000059D 88E3                    	mov	bl, ah
  1192 0000059F 88DA                    	mov	dl, bl
  1193 000005A1 80E30F                  	and	bl, 0Fh
  1194 000005A4 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1195 000005AA A2[8D080000]            	mov	[msgDevId+1], al
  1196 000005AF 88D3                    	mov	bl, dl
  1197 000005B1 C0EB04                  	shr	bl, 4
  1198 000005B4 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1199 000005BA A2[8C080000]            	mov	[msgDevId], al
  1200                                  
  1201 000005BF 8B35[5C090000]          	mov	esi, [bus_dev_fn]
  1202 000005C5 C1EE08                  	shr	esi, 8
  1203 000005C8 6689F0                  	mov	ax, si
  1204 000005CB 88C3                    	mov	bl, al
  1205 000005CD 88DA                    	mov	dl, bl
  1206 000005CF 80E307                  	and	bl, 7 ; bit 0,1,2
  1207 000005D2 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1208 000005D8 A2[B3080000]            	mov	[msgFncNo+1], al
  1209 000005DD 88D3                    	mov	bl, dl
  1210 000005DF C0EB03                  	shr	bl, 3
  1211 000005E2 88DA                    	mov	dl, bl
  1212 000005E4 80E30F                  	and	bl, 0Fh
  1213 000005E7 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1214 000005ED A2[A5080000]            	mov	[msgDevNo+1], al
  1215 000005F2 88D3                    	mov	bl, dl
  1216 000005F4 C0EB04                  	shr	bl, 4
  1217 000005F7 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1218 000005FD A2[A4080000]            	mov	[msgDevNo], al
  1219 00000602 88E3                    	mov	bl, ah
  1220 00000604 88DA                    	mov	dl, bl
  1221 00000606 80E30F                  	and	bl, 0Fh
  1222 00000609 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1223 0000060F A2[99080000]            	mov	[msgBusNo+1], al
  1224 00000614 88D3                    	mov	bl, dl
  1225 00000616 C0EB04                  	shr	bl, 4
  1226 00000619 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1227 0000061F A2[98080000]            	mov	[msgBusNo], al
  1228                                  
  1229 00000624 66A1[60090000]          	mov	ax, [ac97_NamBar]
  1230 0000062A 88C3                    	mov	bl, al
  1231 0000062C 88DA                    	mov	dl, bl
  1232 0000062E 80E30F                  	and	bl, 0Fh
  1233 00000631 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1234 00000637 A2[C2080000]            	mov	[msgNamBar+3], al
  1235 0000063C 88D3                    	mov	bl, dl
  1236 0000063E C0EB04                  	shr	bl, 4
  1237 00000641 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1238 00000647 A2[C1080000]            	mov	[msgNamBar+2], al
  1239 0000064C 88E3                    	mov	bl, ah
  1240 0000064E 88DA                    	mov	dl, bl
  1241 00000650 80E30F                  	and	bl, 0Fh
  1242 00000653 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1243 00000659 A2[C0080000]            	mov	[msgNamBar+1], al
  1244 0000065E 88D3                    	mov	bl, dl
  1245 00000660 C0EB04                  	shr	bl, 4
  1246 00000663 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1247 00000669 A2[BF080000]            	mov	[msgNamBar], al
  1248                                  
  1249 0000066E 66A1[62090000]          	mov	ax, [ac97_NabmBar]
  1250 00000674 88C3                    	mov	bl, al
  1251 00000676 88DA                    	mov	dl, bl
  1252 00000678 80E30F                  	and	bl, 0Fh
  1253 0000067B 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1254 00000681 A2[D2080000]            	mov	[msgNabmBar+3], al
  1255 00000686 88D3                    	mov	bl, dl
  1256 00000688 C0EB04                  	shr	bl, 4
  1257 0000068B 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1258 00000691 A2[D1080000]            	mov	[msgNabmBar+2], al
  1259 00000696 88E3                    	mov	bl, ah
  1260 00000698 88DA                    	mov	dl, bl
  1261 0000069A 80E30F                  	and	bl, 0Fh
  1262 0000069D 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1263 000006A3 A2[D0080000]            	mov	[msgNabmBar+1], al
  1264 000006A8 88D3                    	mov	bl, dl
  1265 000006AA C0EB04                  	shr	bl, 4
  1266 000006AD 8A83[39080000]          	mov	al, [ebx+hex_chars]
  1267 000006B3 A2[CF080000]            	mov	[msgNabmBar], al
  1268                                  
  1269 000006B8 30E4                    	xor	ah, ah
  1270 000006BA A0[56090000]            	mov	al, [ac97_int_ln_reg]
  1271 000006BF B10A                    	mov	cl, 10
  1272 000006C1 F6F1                    	div	cl
  1273 000006C3 660105[DB080000]        	add	[msgIRQ], ax
  1274 000006CA 20C0                    	and	al, al
  1275 000006CC 750D                    	jnz	short _w_ac97imsg_
  1276 000006CE A0[DC080000]            	mov	al, [msgIRQ+1]
  1277 000006D3 B420                    	mov	ah, ' '
  1278 000006D5 66A3[DB080000]          	mov	[msgIRQ], ax
  1279                                  _w_ac97imsg_:
  1280                                  	sys	_msg, msgAC97Info, 255, 07h
  1281                              <1> 
  1282                              <1> 
  1283                              <1> 
  1284                              <1> 
  1285                              <1>  %if %0 >= 2
  1286 000006DB BB[4A080000]        <1>  mov ebx, %2
  1287                              <1>  %if %0 >= 3
  1288 000006E0 B9FF000000          <1>  mov ecx, %3
  1289                              <1>  %if %0 = 4
  1290 000006E5 BA07000000          <1>  mov edx, %4
  1291                              <1>  %endif
  1292                              <1>  %endif
  1293                              <1>  %endif
  1294 000006EA B823000000          <1>  mov eax, %1
  1295                              <1> 
  1296 000006EF CD40                <1>  int 40h
  1297                                  
  1298 000006F1 C3                              retn
  1299                                  
  1300                                  ; DATA
  1301                                  
  1302                                  FileHandle:	
  1303 000006F2 FFFFFFFF                	dd	-1
  1304                                  
  1305                                  Credits:
  1306 000006F6 54696E792057415620-     	db	'Tiny WAV Player for TRDOS 386 by Erdogan Tan. '
  1307 000006FF 506C6179657220666F-
  1308 00000708 72205452444F532033-
  1309 00000711 383620627920457264-
  1310 0000071A 6F67616E2054616E2E-
  1311 00000723 20                 
  1312 00000724 4A756E652032303137-     	db	'June 2017.',10,13,0
  1313 0000072D 2E0A0D00           
  1314 00000731 31372F30362F323031-     	db	'17/06/2017', 10,13,0
  1315 0000073A 370A0D00           
  1316                                  
  1317                                  msgAudioCardInfo:
  1318 0000073E 666F7220496E74656C-     	db 	'for Intel AC97 (ICH) Audio Controller.', 10,13,0
  1319 00000747 204143393720284943-
  1320 00000750 482920417564696F20-
  1321 00000759 436F6E74726F6C6C65-
  1322 00000762 722E0A0D00         
  1323                                  
  1324                                  msg_usage:
  1325 00000767 75736167653A20706C-     	db	'usage: playwav3 filename.wav',10,13,0
  1326 00000770 617977617633206669-
  1327 00000779 6C656E616D652E7761-
  1328 00000782 760A0D00           
  1329                                  
  1330                                  noDevMsg:
  1331 00000786 4572726F723A20556E-     	db	'Error: Unable to find AC97 audio device!'
  1332 0000078F 61626C6520746F2066-
  1333 00000798 696E64204143393720-
  1334 000007A1 617564696F20646576-
  1335 000007AA 69636521           
  1336 000007AE 0A0D00                  	db	10,13,0
  1337                                  
  1338                                  noFileErrMsg:
  1339 000007B1 4572726F723A206669-     	db	'Error: file not found.',10,13,0
  1340 000007BA 6C65206E6F7420666F-
  1341 000007C3 756E642E0A0D00     
  1342                                  
  1343                                  trdos386_err_msg:
  1344 000007CA 5452444F5320333836-     	db	'TRDOS 386 System call error !',10,13,0
  1345 000007D3 2053797374656D2063-
  1346 000007DC 616C6C206572726F72-
  1347 000007E5 20210A0D00         
  1348                                  
  1349 000007EA 0D0A5741562046696C-     msgWavFileName:	db 0Dh, 0Ah, "WAV File Name: ",0
  1350 000007F3 65204E616D653A2000 
  1351 000007FC 0D0A53616D706C6520-     msgSampleRate:	db 0Dh, 0Ah, "Sample Rate: "
  1352 00000805 526174653A20       
  1353 0000080B 303030303020487A2C-     msgHertz:	db "00000 Hz, ", 0 
  1354 00000814 2000               
  1355 00000816 3820626974732C2000      msg8Bits:	db "8 bits, ", 0 
  1356 0000081F 4D6F6E6F0D0A00          msgMono:	db "Mono", 0Dh, 0Ah, 0
  1357 00000826 313620626974732C20-     msg16Bits:	db "16 bits, ", 0 
  1358 0000082F 00                 
  1359 00000830 53746572656F            msgStereo:	db "Stereo"
  1360 00000836 0D0A00                  nextline:	db 0Dh, 0Ah, 0
  1361                                  
  1362                                  ; 03/06/2017
  1363 00000839 303132333435363738-     hex_chars	db "0123456789ABCDEF", 0
  1364 00000842 3941424344454600   
  1365 0000084A 0D0A                    msgAC97Info	db 0Dh, 0Ah
  1366 0000084C 414339372041756469-     		db "AC97 Audio Controller & Codec Info", 0Dh, 0Ah 
  1367 00000855 6F20436F6E74726F6C-
  1368 0000085E 6C6572202620436F64-
  1369 00000867 656320496E666F0D0A 
  1370 00000870 56656E646F72204944-     		db "Vendor ID: "
  1371 00000879 3A20               
  1372 0000087B 303030306820446576-     msgVendorId	db "0000h Device ID: "
  1373 00000884 6963652049443A20   
  1374 0000088C 30303030680D0A          msgDevId	db "0000h", 0Dh, 0Ah
  1375 00000893 4275733A20              		db "Bus: "
  1376 00000898 303068204465766963-     msgBusNo	db "00h Device: "
  1377 000008A1 653A20             
  1378 000008A4 3030682046756E6374-     msgDevNo	db "00h Function: "
  1379 000008AD 696F6E3A20         
  1380 000008B2 303068                  msgFncNo	db "00h"
  1381 000008B5 0D0A                    		db 0Dh, 0Ah
  1382 000008B7 4E414D4241523A20        		db "NAMBAR: "
  1383 000008BF 30303030682020          msgNamBar	db "0000h  "
  1384 000008C6 4E41424D4241523A20      		db "NABMBAR: "
  1385 000008CF 303030306820204952-     msgNabmBar	db "0000h  IRQ: "
  1386 000008D8 513A20             
  1387 000008DB 3030                    msgIRQ		dw 3030h
  1388 000008DD 0D0A00                  		db 0Dh, 0Ah, 0
  1389                                  
  1390                                  EOF: 
  1391                                  
  1392                                  ; BSS
  1393                                  
  1394                                  bss_start:
  1395                                  
  1396                                  ABSOLUTE bss_start
  1397                                  
  1398                                  alignb 4
  1399                                  
  1400 000008E0 <res 00000001>          stmo:		resb 1 ; stereo or mono (1=stereo) 
  1401 000008E1 <res 00000001>          bps:		resb 1 ; bits per sample (8,16)
  1402 000008E2 <res 00000002>          sample_rate:	resw 1 ; Sample Frequency (Hz)
  1403                                  
  1404 000008E4 <res 00000001>          cbs_busy:	resb 1 
  1405 000008E5 <res 00000001>          half_buff:	resb 1
  1406 000008E6 <res 00000001>          flags:		resb 1
  1407 000008E7 <res 00000001>          srb:		resb 1	
  1408                                  
  1409 000008E8 <res 0000001C>          smpRBuff:	resw 14 
  1410                                  
  1411                                  wav_file_name:
  1412 00000904 <res 00000050>          		resb 80 ; wave file, path name (<= 80 bytes)
  1413                                  
  1414 00000954 <res 00000002>          resw 1
  1415 00000956 <res 00000001>          ac97_int_ln_reg: resb 1
  1416 00000957 <res 00000001>          factor:		resb 1 ; 13/06/2017
  1417 00000958 <res 00000004>          dev_vendor:	resd 1
  1418 0000095C <res 00000004>          bus_dev_fn:	resd 1
  1419 00000960 <res 00000002>          ac97_NamBar:	resw 1
  1420 00000962 <res 00000002>          ac97_NabmBar:	resw 1
  1421                                  
  1422                                  bss_end:
  1423 00000964 <res 0000069C>          alignb 4096
  1424 00001000 <res 00008000>          audio_buffer:	resb BUFFERSIZE ; DMA Buffer Size / 2  (32768)
  1425                                  ; 13/06/2017
  1426 00009000 <res 00008000>          temp_buffer:	resb BUFFERSIZE