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impulsetracker/SoundDrivers/SB16MMXB.ASM

2266 lines
59 KiB
NASM
Executable File
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.386P
Segment DriverHeader PARA Public 'Code' Use16
Assume CS:Driver, DS:Nothing
;***** Driver Header *******
include drhead.inc
include mmx.inc
EndS
Segment Driver PARA Public 'Code' Use16
Assume CS:Driver, DS:Nothing
ORG 0
StartDriver:
include vtable.inc
;******** Required ProcedureTable *************
include reqproc.inc
;**********************************
TRACEENABLED = 0
CREATENEWLOGFILE = 1
include debug.inc
STEREOENABLED EQU 1
DMABUFFERLENGTH EQU 4096
MIXRESOLUTION EQU 32 ; 32 bit mixing for the SB16
OUTPUTFILTERENABLED EQU 1
FOURIERBUFFERLENGTH EQU 2048 ; 2048 samples
FPSave DB 128 Dup (0)
SB16Msg DB "Sound Blaster 16 MMX", 13
DB "Port ", 0FDh, "Xh, IRQ ", 0FDh, "D, DMA ", 0FDh, "D", 0
SB16NoMemoryMsg DB "Sound Blaster 16 MMX", 13
DB "Error: Insufficient memory", 0
ReinitMsg DB "Sound Blaster 16 reinitialised", 0
DefaultDriverName DB "ITSB16.MMX", 0
DriverName DD 0
DSPVersion DW 0
DSPIRQValue DB 0
DSPDMAValue DB 0
Forced DB 0
Stereo DB 0
MixVolume DW 0
BytesToMix DW 1000
SBMixConst DB 0
MixSegment DW 0
FourierSegment DW 0
MixTransferOffset DW 0
MixTransferRemaining DW 0
CONFIGURATIONOFFSET EQU $+128
CONFIGSIZE EQU 20
MixMode DW 0
MixModeOffset DW 0
DMASize DW 2048
VolumeTable DB 6 Dup (0)
DB 0, 16, 96, 127
DB 0, 0, 0, 0
IMR DW 0
OldIRQHandler DD 0
MIDIPort DW 0
MIDIBuffer DB 256 Dup (0)
MIDIBufferHead DB 0
MIDIBufferTail DB 0
IRQData Label Word
DW 20h, 1111111111111110b ; IRQ 0
DW 24h, 1111111111111101b ; IRQ 1
DW 28h, 1111110111111011b ; IRQ 2
DW 2Ch, 1111111111110111b ; IRQ 3
DW 30h, 1111111111101111b ; IRQ 4
DW 34h, 1111111111011111b ; IRQ 5
DW 38h, 1111111110111111b ; IRQ 6
DW 3Ch, 1111111101111111b ; IRQ 7
DW 1C0h, 1111111011111011b ; IRQ 8
DW 1C4h, 1111110111111011b ; IRQ 9
DW 1C8h, 1111101111111011b ; IRQ 10
DW 1CCh, 1111011111111011b ; IRQ 11
DW 1D0h, 1110111111111011b ; IRQ 12
DW 1D4h, 1101111111111011b ; IRQ 13
DW 1D8h, 1011111111111011b ; IRQ 14
DW 1DCh, 0111111111111011b ; IRQ 15
;**********************************
SB16ScreenList Label
DW 8
DW Near Ptr IdleFunctionList
DW Near Ptr GlobalKeyLink
DW Near Ptr FullScreenBox ; 0
DW Near Ptr ScreenHeader
DW Near Ptr FillHeader
DW Near Ptr SB16HeaderLine
DW Near Ptr VolumeText
DW Near Ptr VolumeBox1
DW Near Ptr VolumeBox2
DW Near Ptr DriverText
DW Near Ptr MasterVolumeLeft ; 8
DW Near Ptr MasterVolumeRight ; 9
DW Near Ptr TrebleVolumeLeft ; 10
DW Near Ptr TrebleVolumeRight ; 11
DW Near Ptr BassVolumeLeft ; 12
DW Near Ptr BassVolumeRight ; 13
DW Near Ptr MixModeText
DW Near Ptr MixModeButton1 ; 15
DW Near Ptr MixModeButton2 ; 16
DW Near Ptr MixModeButton3 ; 17
DW Near Ptr MixModeButton4 ; 18
DW Near Ptr FrequencyText
DW Near Ptr FilterText ; 20
DW Near Ptr FilterBox1
DW Near Ptr FilterBox2
DW Near Ptr FilterFrequency1 ; 23
DW Near Ptr FilterFrequency2
DW Near Ptr FilterFrequency3
DW Near Ptr FilterFrequency4
DW Near Ptr FilterVolume1 ; 27
DW Near Ptr FilterVolume2
DW Near Ptr FilterVolume3
DW Near Ptr FilterVolume4
DW 0
SB16HeaderLine DW 10
DB "Sound Blaster 16 Driver", 0
DriverText DW 1
DB 31, 48
DB 21h
DB "Sound Blaster 16 Driver 1.4 for Impulse Tracker", 0
VolumeText DW 1
DB 2, 13
DB 20h
DB "Master Volume Left", 13
DB "Master Volume Right", 13
DB 13
DB 13
DB "Treble Left", 13
DB "Treble Right", 13
DB "Bass Left", 13
DB "Bass Right", 13
DB 0
VolumeBox1 DW 0
DB 21, 12, 27, 15
DB 25
VolumeBox2 DW 0
DB 14, 16, 18, 21
DB 25
GlobalKeyLink DB 7
GlobalKeyLink2 DD 0
IdleFunctionList DD 0
DD 0
FillHeader DW 8
FillHeader2 DD 0
FullScreenBox DW 0
DB 0, 0, 79, 49
DB 4
ScreenHeader DW 8
ScreenHeader2 DD 0
MasterVolumeLeft DW 9
DB 22, 13
DW 0, 31
DW 9, 0
DW 0FFFFh, 9, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
MasterVolumeRight DW 9
DB 22, 14
DW 0, 31
DW 9, 1
DW 8, 10, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
TrebleVolumeLeft DW 9
DB 15, 17
DW 0, 15
DW 9, 2
DW 9, 11, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
TrebleVolumeRight DW 9
DB 15, 18
DW 0, 15
DW 9, 3
DW 10, 12, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
BassVolumeLeft DW 9
DB 15, 19
DW 0, 15
DW 9, 4
DW 11, 13, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
BassVolumeRight DW 9
DB 15, 20
DW 0, 15
DW 9, 5
DW 12, 15, 0FFFFh, 0FFFFh
DW 0FFFFh, 0FFFFh
MixModeText DW 1
DB 2, 23
DB 20h
DB "Mixing Mode", 0
FrequencyText DW 1
DB 2, 48
DB 20h
DB "Playback Frequency: ", 0FDh, "DHz", 0
MixSpeed DW 45454
DW 0
MixModeButton1 DW 2
DW 13, 16, 0FFFFh, 0FFFFh
DW 0
DW 0, 0
DW 6
DW Offset GetMixMode
DriverSegment1 DW 0
DW 0
DW Offset SetMixMode
DriverSegment2 DW 0
DB 3, 25, 32, 27, 8
DB 0
DB " MMX, Non-Interpolated", 0
MixModeButton2 DW 2
DW 15, 17, 0FFFFh, 0FFFFh
DW 0
DW 0, 0
DW 6
DW Offset GetMixMode
DriverSegment3 DW 0
DW 1
DW Offset SetMixMode
DriverSegment4 DW 0
DB 3, 28, 32, 30, 8
DB 0
DB " MMX, Interpolated", 0
MixModeButton3 DW 2
DW 16, 18, 0FFFFh, 0FFFFh
DW 0
DW 0, 0
DW 6
DW Offset GetMixMode
DriverSegment5 DW 0
DW 2
DW Offset SetMixMode
DriverSegment6 DW 0
DB 3, 31, 32, 33, 8
DB 0
DB " MMX, Volume Ramped", 0
MixModeButton4 DW 2
DW 17, 23, 0FFFFh, 0FFFFh
DW 0
DW 0, 0
DW 6
DW Offset GetMixMode
DriverSegment7 DW 0
DW 3
DW Offset SetMixMode
DriverSegment8 DW 0
DB 3, 34, 32, 36, 8
DB 0
DB " MMX, Filtered", 0
FilterText DW 1
DB 2, 39
DB 20h
DB "Output Equalizer", 13
DB 13
DB " Low Frequency Band", 13
DB " Med Low Frequency Band", 13
DB "Med High Frequency Band", 13
DB " High Frequency Band", 0
FilterBox1 DW 0
DB 25, 40, 47, 45
DB 25
FilterBox2 DW 0
DB 52, 40, 74, 45
DB 25
FilterFrequency1 DW 14
DB 26, 41
DW 0, 127
DW 9, 6
DW 18, 24, 27, 27
DW 0FFFFh, 0FFFFh
DW 20
FilterFrequency2 DW 14
DB 26, 42
DW 0, 127
DW 9, 7
DW 23, 25, 28, 28
DW 0FFFFh, 0FFFFh
DW 20
FilterFrequency3 DW 14
DB 26, 43
DW 0, 127
DW 9, 8
DW 24, 26, 29, 29
DW 0FFFFh, 0FFFFh
DW 20
FilterFrequency4 DW 14
DB 26, 44
DW 0, 127
DW 9, 9
DW 25, 0FFFFh, 30, 30
DW 0FFFFh, 0FFFFh
DW 20
FilterVolume1 DW 14
DB 53, 41
DW 0, 255
DW 9, 10
DW 18, 28, 23, 23
DW 0FFFFh, 0FFFFh
DW 20
FilterVolume2 DW 14
DB 53, 42
DW 0, 255
DW 9, 11
DW 27, 29, 24, 24
DW 0FFFFh, 0FFFFh
DW 20
FilterVolume3 DW 14
DB 53, 43
DW 0, 255
DW 9, 12
DW 28, 30, 25, 25
DW 0FFFFh, 0FFFFh
DW 20
FilterVolume4 DW 14
DB 53, 44
DW 0, 255
DW 9, 13
DW 29, 0FFFFh, 26, 26
DW 0FFFFh, 0FFFFh
DW 20
; <20><> MixingRoutines <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
include dmasirq.inc
include mix.inc
include m32bitm.mix
include m32bitmi.mix
include m32bitmv.mix
include m32bitmf.mix
ALIGN 2
MixFunctionTables Label
include m32bitm.inc
include m32bitmi.inc
include m32bitmv.inc
include m32bitmf.inc
include mnomix.inc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
RelocationTable Label Word
DW Offset DriverSegment1, Offset DriverSegment2
DW Offset DriverSegment3, Offset DriverSegment4
DW Offset DriverSegment5, Offset DriverSegment6
DW Offset DriverSegment7, Offset DriverSegment8
DW 0
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Proc SBOut ; AL = data
; DX = 2xCh
Push AX
SBOut1:
In AL, DX
Test AL, AL
JS SBOut1
Pop AX
Out DX, AL
Ret
EndP SBOut
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SBIn ; DX = 2xEh, returns AL
SBIn1:
In AL, DX
Test AL, AL
JNS SBIn1
Add DL, 0Ah-0Eh ; DX = 2xAh -> Data read port
In AL, DX
Add DL, 0Eh-0Ah
Ret
EndP SBIn
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc DetectMMX
Trace "Detecting MMX - CPUID Check"
PushFD
Pop EAX
Mov EBX, EAX
Xor EAX, 00200000h
Push EAX
PopFD
PushFD
Pop EAX
Cmp EAX, EBX
JZ DetectMMXFail
Trace "CPUID - Check OK"
Mov EAX, 1
DB 0Fh, 0A2h ; CPUID
Test EDX, 800000h
JZ DetectMMXFail
Trace "MMX Detected"
ClC
Ret
DetectMMXFail:
Trace "MMX Not Detected"
StC
Ret
EndP DetectMMX
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc DetectUART ; Given DX = Port
; From SB-DevKit
ClI
Inc DX
Xor CX, CX
DetectUART1:
In AL, DX
Test AL, 40h ; Ready for output
LoopNZ DetectUART1
JNZ DetectUARTError
Mov AL, 0FFh ; Reset!
Out DX, AL
Xor CX, CX
DetectUART2:
In AL, DX
Test AL, 80h
JNZ DetectUART3
Dec DX
In AL, DX
Inc DX
Cmp AL, 0FEh
JE DetectUART4
DetectUART3:
Loop DetectUART2
DetectUARTError:
StI
StC
Ret
DetectUART4: ; Now to shove it into 'intelligent' mode.
Xor CX, CX
DetectUART5:
In AL, DX
Test AL, 40h
LoopNZ DetectUART5
JNZ DetectUARTError
Mov AL, 3Fh ; Intelligent mode!
Out DX, AL
DetectUART6:
Xor CX, CX
DetectUART7:
In AL, DX
Test AL, 80h
JNZ DetectUART8
Dec DX
In AL, DX
Inc DX
Cmp AL, 0FEh
JE DetectUART9
DetectUART8:
Loop DetectUART7
Jmp DetectUARTError
DetectUART9:
StI
ClC
Ret
EndP DetectUART
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ReinitUART
Mov DX, MIDIPort
Test DX, DX
JZ ReinitUART1
Call DetectUART
ReinitUART1:
Ret
EndP ReinitUART
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetUART
Mov DX, MIDIPort
Test DX, DX
JZ ResetUART1
Inc DX
Mov AL, 0FFh
Out DX, AL
ResetUART1:
Ret
EndP ResetUART
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc GetMixMode Far
Push CS
Pop ES
Mov DI, Offset MixMode
Ret
EndP GetMixMode
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SetMixMode Far
Mov AX, [SI+22]
ClI
Mov CS:MixMode, AX
Mov BX, 60
Mul BX
Mov CS:MixModeOffset, AX
StI
Mov AX, 1
Ret
EndP SetMixMode
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SBGetRegister
Out DX, AL
Inc DX
In AL, DX
Dec DX
Ret
EndP SBGetRegister
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc GetSBMixConst ; Work out value.. and nearest
; mixspeed value.
PushA
Push DS
Push CS
Pop DS
Assume DS:Driver
Mov AX, CmdLineMixSpeed
Mov CX, MixSpeed
Test AX, AX
JZ GetSBMixConst1
Mov CX, 45454
Cmp AX, CX
JA GetSBMixConst1
Mov CX, 12000
Cmp AX, CX
JB GetSBMixConst1
Mov CX, AX
GetSBMixConst1:
Mov AX, 1000
Mul AX
Div CX
Mov AH, AL
Neg AH
Mov SBMixConst, AH
MovZX BX, AL
Mov AX, 1000
Mul AX
Div BX
Mov MixSpeed, AX
FNInit
FILd DWord Ptr [MixSpeed]
FMul FreqMultiplier
FStP FreqMultiplier
Mov BX, 12000
Xor DX, DX
Div BX
Mov FourierBufferStepOffset, AX
Mov FourierBufferStepFractional, DX
Pop DS
PopA
Ret
EndP GetSBMixConst
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetDSP Far ; AX = Port
Push AX
Push CX
Push DX
Mov DX, AX
Add DL, 6
Mov AL, 1
Out DX, AL
In AL, DX
In AL, DX
In AL, DX
In AL, DX
Xor AL, AL
Out DX, AL
Add DL, 8
Mov CX, 200
ResetDSP1:
In AL, DX
Test AL, AL
JS ResetDSP2
Loop ResetDSP1
Jmp ResetDSP3
ResetDSP2:
Sub DL, 4
In AL, DX
Cmp AL, 0AAh
JE ResetDSP4
Add DL, 4
Loop ResetDSP1
ResetDSP3:
StC
ResetDSP4:
Pop DX
Pop CX
Pop AX
Ret
EndP ResetDSP
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetDSPIRQ
Mov DX, CS:BasePort
Add DL, 4
Mov AH, CS:DSPIRQValue
Mov AL, 80h
Out DX, AX
Ret
EndP ResetDSPIRQ
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetDSPDMA
Mov DX, CS:BasePort
Add DL, 4
Mov AH, CS:DSPDMAValue
Mov AL, 81h
Out DX, AX
Ret
EndP ResetDSPDMA
; <20><> DetectCard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Returns carry set if error, else carry clear. Has to setup internal vars
; (eg. appropriate IRQ/DMA whatever).
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc DetectCard Far
Push CS
Pop DS
Assume DS:Driver
Mov Forced, AL
Cmp BX, 217h
JAE DetectCardUseDriver
Mov CX, DS
ShL ECX, 16
Mov CX, Offset DefaultDriverName
DetectCardUseDriver:
Mov DriverName, ECX
Call DetectMMX
JC DetectCardFailure
Mov AX, BasePort
Cmp AX, 0FFFFh
JE DetectCard1
Cmp AX, 210h
JB DetectCard9
Cmp AX, 280h
JA DetectCard9
Call ResetDSP
JNC DetectCard2
Ret
DetectCard1:
Mov AX, 210h
DetectCard2:
Call ResetDSP
JNC DetectCard3
Add AL, 10h
Cmp AL, 80h
JBE DetectCard2
DetectCard9:
StC
Ret
DetectCard3: ; OK... DSP found.
; Get DSP version
Mov BasePort, AX
Mov DX, AX
Add DL, 0Ch ; 2xCh -> Data ready to send...
DetectCardOuputLoop1:
In AL, DX
Test AL, AL
JS DetectCardOuputLoop1
Mov AL, 0E1h ; Get DSP version command
Out DX, AL
Add DL, 0Eh-0Ch ; DX = 2xEh -> Data available status
Call SBIn
Mov AH, AL ; AH = Major version number
Call SBIn ; AL = Minor version number
Cmp AH, 4 ; SB DSP = 4.00+
JAE DetectCard5
DetectCard4:
StC
Ret
DetectCard5:
Mov DSPVersion, AX
Add DL, 04h-0Eh ; 2x4h = Mixer index port
Mov AL, 80h ; IRQ select
Out DX, AL
Inc DL ; 2x5h = Mixer data port
In AL, DX
Dec DL
Mov DSPIRQValue, AL
; OK.. now get IRQ, or set IRQ
Mov BX, IRQ
Cmp BX, 0FFFFh
JE DetectCardIRQ1
Cmp Forced, 0
JE DetectCardIRQ1
Mov AH, 11h
Cmp BL, 2
JE SetCardIRQ1
Cmp BL, 9
JE SetCardIRQ1
Mov AH, 12h
Cmp BL, 5
JE SetCardIRQ1
Mov AH, 14h
Cmp BL, 7
JE SetCardIRQ1
Mov AH, 18h
Cmp BL, 10
JE SetCardIRQ1
StC
Ret
SetCardIRQ1:
Mov AL, 80h
Out DX, AL
Inc DL
Mov AL, AH
Out DX, AL
Dec DL
Jmp DetectCard6
DetectCardIRQ1:
Mov BX, 2
Test AL, 1
JNZ DetectCardIRQ2
Mov BL, 5
Test AL, 2
JNZ DetectCardIRQ2
Mov BL, 7
Test AL, 4
JNZ DetectCardIRQ2
Mov BL, 10
Test AL, 8
JNZ DetectCardIRQ2
StC
Ret
DetectCardIRQ2:
Cmp IRQ, 0FFFFh
JE DetectCardIRQ3
Cmp BX, IRQ
JE DetectCard6
DetectCardFailure:
StC
Ret
DetectCardIRQ3:
Mov IRQ, BX
DetectCard6: ; Detect DMA
Mov AL, 81h ; DMA select
Out DX, AL
Inc DL
In AL, DX ; AL = DMA
Dec DL
Mov DSPDMAValue, AL
Mov BX, DMA
Cmp BX, 0FFFFh
JE DetectCardDMA1
Cmp Forced, 0
JE DetectCardDMA1
Mov CL, 1
Cmp BX, 1
JB SetCardDMA1
Mov CL, 2
JE SetCardDMA1
Cmp BX, 3
JB DetectCard7
Mov CL, 8
JE DetectCard7
Mov CL, 20h
Cmp BX, 5
JB DetectCard7
JE SetCardDMA1
Mov CL, 80h
Cmp BX, 7
JA DetectCard7
JE SetCardDMA1
Mov CL, 40h
SetCardDMA1:
And AL, 0Bh
Test CL, 0Bh
JZ SetCardDMA4
Xor AL, AL
SetCardDMA4:
Or CL, AL
Mov AL, 81h
Out DX, AL
Inc DL
Mov AL, CL
Out DX, AL
Jmp DetectCard7
DetectCardDMA1:
Mov BX, 5
Test AL, 20h
JNZ DetectCardDMA2
Inc BL
Test AL, 40h
JNZ DetectCardDMA2
Inc BL
Test AL, 80h
JNZ DetectCardDMA2
Mov BL, 0
Test AL, 1
JNZ DetectCardDMA2
Inc BL
Test AL, 2
JNZ DetectCardDMA2
Add BL, 2
Test AL, 8
JNZ DetectCardDMA2
DetectCard8:
Call ResetDSPIRQ
StC
Ret
DetectCardDMA2:
Cmp DMA, 0FFFFh
JE DetectCardDMA3
Cmp BX, DMA
JNE DetectCard8
DetectCardDMA3:
Mov DMA, BX
DetectCard7:
Mov EAX, 'Jeff'
ClC
Ret
EndP DetectCard
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
include mmxmsam.inc
include fourier.inc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc AckIRQ
Assume DS:Driver
Mov AL, 20h
Cmp CS:IRQ, 7
JBE AckIRQ1
Out 0A0h, AL
AckIRQ1:
Out 20h, AL
Ret
EndP AckIRQ
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc CheckMIDI
Push DS
Push CS
Pop DS
Assume DS:Driver
Xor BX, BX
Mov DX, MIDIPort
Mov BL, [MIDIBufferTail]
Test DX, DX
JZ CheckMIDIEnd
Inc DX
Mov CX, 0FFFFh
CheckMIDIAgain:
In AL, DX
Test AL, 80h
LoopNZ CheckMIDIAgain
Dec DX
In AL, DX
Cmp AL, 0F0h
JAE CheckMIDIEnd
Inc BL
Cmp BL, MIDIBufferHead
JE CheckMIDIEnd
Mov [MIDIBuffer+BX], AL
Mov [MIDIBufferTail], BL
; Jmp CheckMIDIAgain
CheckMIDIEnd:
Pop DS
Ret
EndP CheckMIDI
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SB16IRQHandler
PushAD
Push DS
Push ES
CLD
SBIRQAgain:
Mov AX, CS
Mov DS, AX
Assume DS:Driver
Mov DX, BasePort
Add DL, 4 ; Mixer Port
Mov AL, 82h
Out DX, AL
Inc DL ; DX = BasePort+5
In AL, DX
Test AL, 4
JZ SBMIDIInterruptEnd
Push AX
Call CheckMIDI
Pop AX
SBMIDIInterruptEnd:
Test AL, 2
JNZ SBDigitalInterrupt
Call AckIRQ
Jmp SBIRQEnd
SBDigitalInterrupt:
FNSave [FPSave]
Mov DX, BasePort
Add DL, 0Fh
In AL, DX ; 16-bit IRQ ack.
Call AckIRQ
DMAPort1 EQU $+1
In AL, 1
Mov BL, AL
DMAPort2 EQU $+1
In AL, 1
Mov BH, AL
Xor AX, AX
DMA16BITADJUST EQU $
ShL BX, 1
Cmp BX, DMABUFFERLENGTH/2
JB SB16IRQHandler2
Mov AX, DMABUFFERLENGTH/2
SB16IRQHandler2:
; OK... time to get next block
; Check whether stereo thing is on..
;
LES DI, [ActualDMAPtr]
Mov BX, DMASize ; BX = bytes required
Add DI, AX
ShR BX, 1
; BX = samples required
Call SaveEMSPageFrame
Cmp MixTransferRemaining, 0
JNE SB16IRQHandler4
Assume DS:Nothing
SB16IRQHandler3:
Push BX
Push CX
Push BP
Push ES
Push DI
Call Update
Call MixSamples
Call UpdateFourierBuffer
Pop DI
Pop ES
Pop BP
Pop CX
Pop BX
SB16IRQHandler4:
Mov DS, MixSegment
Mov SI, MixTransferOffset
Mov DX, BX ; DX = samples to transfer
Cmp DX, MixTransferRemaining
JBE SB16IRQHandler5
Mov DX, MixTransferRemaining
SB16IRQHandler5:
include mmxtrans.inc
Sub MixTransferRemaining, DX ; } Memory write
Sub BX, DX
JNZ SB16IRQHandler3
Mov MixTransferOffset, SI ; } Memory write
Call RestoreEMSPageFrame
FNRstor [CS:FPSave]
SBIRQEnd:
Pop ES
Pop DS
PopAD
IRet
EndP SB16IRQHandler
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SetIRQ
PushAD
Push DS
Push ES
Push CS
Pop DS
Assume DS:Driver
Xor AX, AX
Mov ES, AX
Mov DI, IRQ
ShL DI, 2
Add DI, Offset IRQData
Mov BX, [DI]
Mov AX, CS
ShL EAX, 16
Mov AX, Offset SB16IRQHandler
XChg [ES:BX], EAX
Mov OldIRQHandler, EAX
Mov AX, IMR
And AX, [DI+2]
Out 21h, AL
Mov AL, AH
Out 0A1h, AL
Pop ES
Pop DS
PopAD
Ret
EndP SetIRQ
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetIRQ
PushAD
Push DS
Push ES
Push CS
Pop DS
Assume DS:Driver
Xor AX, AX
Mov ES, AX
Mov DI, IRQ
ShL DI, 2
Mov BX, [IRQData+DI]
Mov EAX, OldIRQHandler
Mov [ES:BX], EAX
Pop ES
Pop DS
PopAD
Ret
EndP ResetIRQ
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc StartSB16 ;
PushA
Push DS
Push ES
Push CS
Pop DS
Assume DS:Driver
; Setup DMA
Mov BX, MixSegment
Mov AX, 80
Mov DX, DMA
Mov DI, DMABUFFERLENGTH
Cmp DX, 3
JA StartSB16B
Mov Word Ptr [DMA16BITADJUST], 9090h
StartSB16B:
Call SetDMA
LES DI, ActualDMAPtr
Xor AX, AX
Mov CX, DMABUFFERLENGTH/2
Rep StosW
Mov MixTransferRemaining, 0
Mov DX, BasePort
Add DL, 0Ch
Mov AL, 0D1h ; turn on speaker
Call SBOut
Mov AL, 40h ; time constant
Call SBOut
Mov AL, SBMixConst
Call SBOut
Mov AL, 0B6h ; 16 bit, DAC
Call SBOut
Mov AL, Stereo
ShL AL, 5
Or AL, 10h
Call SBOut
Mov AX, DMASize
ShR AX, 1
Dec AX
Call SBOut ; DMALength, Lo
Mov AL, AH
Call SBOut
Pop ES
Pop DS
PopA
Ret
Assume DS:Nothing
EndP StartSB16
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc GetMixerRegisters
Push DS
Push CS
Pop DS
Assume DS:Driver
Pop DS
Ret
EndP GetMixerRegisters
Assume DS:Nothing
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;<3B><> InitSound <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Sets up any memory required for output
; Initiates output
;
; Parameters: AX = Number of Channels
;
; If sucessful, returns:
; Carry flag clear
; DS:SI = pointer to text to display
; AX = parameter 1 in text
; BX = parameter 2 in text
; CX = parameter 3 in text
; DX = parameter 4 in text
; DI = parameter 5 in text
;
; If unsucessful, returns:
; Carry flag set
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc InitSound Far
Push CS
Pop DS
Assume DS:Driver
Mov ECX, IdleUpdateInfoLine
Mov EDX, GlobalKeyList
Mov IdleFunctionList, ECX
Mov GlobalKeyLink2, EDX
Mov ECX, FillHeaderFunction
Mov EDX, DrawHeaderFunction
Mov FillHeader2, ECX
Mov ScreenHeader2, EDX
Mov SI, Offset RelocationTable
RelocationFix:
LodsW
Test AX, AX
JZ RelocationEnd
Mov BX, AX
Mov [BX], DS
Jmp RelocationFix
RelocationEnd:
Call GetEMSPageFrame
Mov EMSPageFrame, AX
In AL, 0A1h
Mov AH, AL
In AL, 21h
Mov IMR, AX
Mov DX, BasePort
Add DL, 4
Mov AL, 30h
Call SBGetRegister
ShR AL, 3
Mov VolumeTable, AL
Mov AL, 31h
Call SBGetRegister
ShR AL, 3
Mov [VolumeTable+1], AL
Mov AL, 44h
Call SBGetRegister
ShR AL, 4
Mov [VolumeTable+2], AL
Mov AL, 45h
Call SBGetRegister
ShR AL, 4
Mov [VolumeTable+3], AL
Mov AL, 46h
Call SBGetRegister
ShR AL, 4
Mov [VolumeTable+4], AL
Mov AL, 47h
Call SBGetRegister
ShR AL, 4
Mov [VolumeTable+5], AL
Call GetSBMixConst
; Parags to allocate = (8/(.4*31*16))*MixSpeed
; = .04032258*MixSpeed = (65536*.04032258*MixSpeed) / 65536
Mov AX, 2643
Mul MixSpeed
Add AX, 0FFFFh
AdC DX, 5+(DMABUFFERLENGTH*2)/16+(FOURIERBUFFERLENGTH*2)/16
Mov BX, DX
; Allocate MixSegment first
Mov AH, 48h
Int 21h
JNC InitSound1
InitSoundNoMemory:
Mov SI, Offset SB16NoMemoryMsg
Ret
InitSound1:
Mov MixSegment, AX
Add AX, DX
Sub AX, (FOURIERBUFFERLENGTH*2)/16
Mov FourierSegment, AX
Call SetIRQ
Call GetTempo
Call SetTempo
Mov DX, 330h
Call DetectUART
JC DetectMIDI1
Mov MIDIPort, 330h
Jmp DetectMIDIEnd
DetectMIDI1:
Mov DX, 300h
Call DetectUART
JC DetectMIDIEnd
Mov MIDIPort, 300h
DetectMIDIEnd:
Call CalculateFilterCoefficients
Mov SI, Offset SB16Msg
Mov AX, BasePort
Mov BX, IRQ
Mov CX, DMA
Ret
EndP InitSound
Assume DS:Nothing
;<3B><> ReInitSound <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Reinitialises sound output
; Initiates sound output
;
; Parameters: AX = number of channels.
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ReInitSound Far
PushA
Push DS
Push ES
Push CS
Pop DS
Assume DS:Driver
Mov AX, BasePort
Call ResetDSP
Call ResetUART
Call ResetIRQ
; Delay..
Mov DX, BasePort
Add DL, 0Ch
Mov CX, 1000
ReInitSound1:
In AL, DX
Loop ReInitSound1
Call SetIRQ
Call ReinitUART
Mov SI, Offset ReInitMsg
Mov BX, 40
Call SetInfoLine
Mov AL, Stereo
Call SetStereo
Pop ES
Pop DS
PopA
Ret
EndP ReInitSound
Assume DS:Nothing
;<3B><> UnInitSound <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Stops sound output, releases any memory used by driver
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc UnInitSound Far
Call GotoHomeDirectory
Mov DS, Word Ptr [CS:DriverName+2]
Mov DX, Word Ptr [CS:DriverName]
Mov AX, 3D02h ; Read write access
Int 21h
Push CS
Pop DS
Assume DS:Driver
JC SaveConfig2
Mov BX, AX
Mov AX, 4200h
Xor CX, CX
Mov DX, Offset CONFIGURATIONOFFSET
Int 21h
JC SaveConfig1
Mov AH, 40h
Mov CX, CONFIGSIZE
Mov DX, Offset MixMode
Int 21h
SaveConfig1:
Mov AH, 3Eh
Int 21h
SaveConfig2:
Mov DX, CS:BasePort
Add DL, 0Ch
Mov AL, 0D9h
Call SBOut
Call ResetUART
Mov AX, BasePort
Call ResetDSP
Call ResetDSPDMA
Call ResetDSPIRQ
Mov AX, IMR
Out 21h, AL
Mov AL, AH
Out 0A1h, AL
Mov AX, MixSegment
Test AX, AX
JZ UnInitSound1
Mov ES, AX
Mov AH, 49h ; Release MixSegment
Int 21h
Call ResetIRQ
UnInitSound1:
Ret
EndP UnInitSound
;<3B><> Poll <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; This procedure is called as often as possible by IT.EXE
; AX = Playmode (0 for nothing in particular, 1 = pattern, 2 = song)
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc Poll Far
Push CS
Pop DS
Assume DS:Driver
Poll1:
Call [UARTBufferEmpty]
JNC PollEnd
Xor BX, BX
ClI
Mov BL, MIDIBufferHead
Cmp BL, MIDIBufferTail
JZ PollEnd ; Nothing in queue
Inc BL
Mov AL, [MIDIBuffer+BX]
Mov MIDIBufferHead, BL
Call [UARTSend]
Jmp Poll1
PollEnd:
StI
Ret
EndP Poll
Assume DS:Nothing
;<3B><> SetTempo <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Parameters: BX = tempo
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SetTempo Far
Push AX
Push BX
Push DX
Push BX
Mov AX, MixSpeed
Mov BX, AX
Xor DX, DX
ShL AX, 1
RCL DX, 1 ; DX:AX = Mixspeed*2
ShR BX, 1 ; BX = Mixspeed/2
Add AX, BX
AdC DX, 0 ; DX:AX = Mixspeed*2.5
Pop BX ; BX = tempo
Div BX
Mov BytesToMix, AX
Pop DX
Pop BX
Pop AX
Ret
EndP SetTempo
;<3B><> SetMixVolume <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Parameters: AX = MixVolume
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SetMixVolume Far
Mov CS:MixVolume, AX
Mov DS, Word Ptr [CS:RecalculateAllVolumes+2]
Jmp CS:RecalculateAllVolumes
EndP SetMixVolume
;<3B><> SetStereo <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Parameters: AL = Stereo on/off, 0 = off.
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc SetStereo Far
Cmp CS:MixSegment, 0
JE SetStereo1
Mov CS:Stereo, AL
Mov AX, CS:BasePort
Call ResetDSP
Call StartSB16
SetStereo1:
Ret
EndP SetStereo
;<3B><> LoadSample <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Parameters: AX = sample to load
; DS:SI points to sample header
; ES:0 points to first sample
;
; Returns: **Carry set if NO error**
; **Carry clear if error**
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
include loadsam.inc
;<3B><> ReleaseSample <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Parameters: AX = sample to release
; DS:SI points to sample header
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ReleaseSample Far
Ret
EndP ReleaseSample
;<3B><> ResetMemory <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Frees all on-board memory
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc ResetMemory Far
Ret
EndP ResetMemory
;<3B><> GetStatus <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Frees all on-board memory
;
; Returns text to show on status line, AX = display parameter
; Carry set if not to show anything.
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc GetStatus Far
StC
Ret
EndP GetStatus
;<3B><> SoundCardScreen <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Function to have driver interactive part of program
;
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Proc SoundCardScreen Far
Mov AX, 5
Mov SI, 1
Mov CX, CS
Mov DX, Offset SB16ScreenList
ClC
Ret
EndP SoundCardScreen
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Proc GetVariable Far ; Returns AX, given DI
Xor AH, AH
Mov AL, [CS:VolumeTable+DI]
Ret
EndP GetVariable
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TempVariable DW 0
Const1 DD 3F800000h
Proc GetFilterFrequency ; Given AL= Freq
Assume DS:Driver
ShL AX, 8
Mov TempVariable, AX
FILD TempVariable
FMul FreqParameterMultiplier ; -i/(24*256)
FLd ST
FRndInt
FSub ST(1), ST
FXCh
F2XM1
FLd1
FAdd
FScale ; = 2^(i/24*256)
FMul FreqMultiplier ; = r
FLd1 ; 1, c
FAdd ST, ST(1) ; 1+c, c
FDivR Const1 ; 1/(1+c), c
FSt DWord Ptr [SI]
FMul
FStP DWord Ptr [SI+4]
FStP ST
Ret
EndP GetFilterFrequency
Assume DS:Nothing
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Const1On16 DD 3D000000h ; actually 1 on 32
Proc CalculateFilterCoefficients
Assume DS:Driver
PushA
FNInit
FLdCW NewControlWord
Mov AL, [VolumeTable+6]
Mov SI, Offset FilterCoefficients
ShR AL, 1
Call GetFilterFrequency
Mov AL, [VolumeTable+7] ; FilterFrequency1
Add SI, 8
Call GetFilterFrequency
Mov AL, [VolumeTable+8] ; FilterFrequency1
Add SI, 8
Call GetFilterFrequency
Mov AL, [VolumeTable+9] ; FilterFrequency1
Add SI, 8
Call GetFilterFrequency
; Now volumes
Mov SI, Offset VolumeTable+10
Mov DI, Offset FilterVolumes
Xor AX, AX
Mov CX, 4
FilterVolumeLoop1:
LodSB
Mov TempVariable, AX
FILD TempVariable
FMul Const1On16
FStP DWord Ptr [DI]
Add DI, 4
Loop FilterVolumeLoop1
PopA
Ret
EndP CalculateFilterCoefficients
Assume DS:Nothing
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Proc SetVariable Far ; Given AX, DI
Push DS
Push DX
Push CS
Pop DS
Assume DS:Driver
Mov [VolumeTable+DI], AL
Cmp DI, 9
JA SetVariable3
Cmp DI, 6
JB SetVariable1
JE SetVariable2
Cmp AL, [VolumeTable+DI-1]
JAE SetVariable2
Mov AL, [VolumeTable+DI-1]
Mov [VolumeTable+DI], AL
SetVariable2:
Cmp DI, 9
JAE SetVariable3
Cmp AL, [VolumeTable+DI+1]
JBE SetVariable3
Mov AL, [VolumeTable+DI+1]
Mov [VolumeTable+DI], AL
SetVariable3:
Call CalculateFilterCoefficients
Jmp SetVariableEnd
SetVariable1:
Mov DX, BasePort
Add DL, 4
Mov AL, 30h
Mov AH, [VolumeTable]
ShL AH, 3
Out DX, AX
Mov AL, 31h
Mov AH, [VolumeTable+1]
ShL AH, 3
Out DX, AX
Mov AL, 44h
Mov AH, [VolumeTable+2]
ShL AH, 4
Out DX, AX
Mov AL, 45h
Mov AH, [VolumeTable+3]
ShL AH, 4
Out DX, AX
Mov AL, 46h
Mov AH, [VolumeTable+4]
ShL AH, 4
Out DX, AX
Mov AL, 47h
Mov AH, [VolumeTable+5]
ShL AH, 4
Out DX, AX
SetVariableEnd:
Pop DX
Pop DS
Ret
EndP SetVariable
Assume DS:Nothing
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Proc UARTOut
Push CX
Push DX
Mov DX, CS:MIDIPort
Test DX, DX
JZ UARTOutEnd
Push AX
Xor CX, CX
Inc DX
UARTOut1:
In AL, DX
Test AL, 40h
LoopNZ UARTOut1
Pop AX
JNZ UARTOutEnd
Dec DX
Out DX, AL
UARTOutEnd:
Pop DX
Pop CX
Ret
EndP UARTOut
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InterpretState DB 0
InterpretType DB 0
Proc SendUARTOut Far ; Local interpreter activated with 0F0h 0F0h.
Mov AH, CS:InterpretState
Cmp AH, 2
JB SendUARTOut1
; In interpreter.
JE SendUARTOut3
; Have InterpretType, now get parameter, then return to normal.
Cmp AL, 7Fh
JA SendUARTOut4
Push BX
Mov BL, CS:InterpretType ; Want BX = InterpretType*64+Channel
;
ShL BX, 6
Add BL, [DI+20h]
And BX, 127
Mov [CS:FilterParameters+BX], AL
Pop BX
Test SI, SI
JZ SendUARTOut4
Or Byte Ptr [SI], 64
SendUARTOut4:
Mov CS:InterpretState, 0
Ret
SendUARTOut3:
Cmp AL, 2
JAE SendUARTOut4
Mov CS:InterpretType, AL
Jmp SendUARTOutStateInc
SendUARTOut1:
Cmp AL, 0F0h
JNE SendUARTOut2
SendUARTOutStateInc:
Inc CS:InterpretState
Ret
SendUARTOut2:
Test AH, AH
JZ SendUARTOutEnd
Push AX
Mov AL, 0F0h
Call UARTOut
Pop AX
Mov CS:InterpretState, 0
SendUARTOutEnd:
Cmp AL, 0FCh
JE ResetFilters
Cmp AL, 0FAh
JE ResetFilters
Cmp AL, 0FFh
JNE SendUARTOutNoClear
ResetFilters:
PushA
Push ES
Push CS
Pop ES
Mov DI, Offset FilterParameters
Mov CX, 64
Mov AL, 7Fh
Rep StosB
Mov CX, 64
Xor AX, AX
Rep StosB
Pop ES
PopA
SendUARTOutNoClear:
Call UARTOut
Ret
EndP SendUARTOut
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Proc GetWaveForm Far ; Given ES:DI = destination
Assume DS:Nothing ; want 2048 samples.
PushA
Push DS
Mov DS, FourierSegment
Mov SI, FourierBufferStart
Mov CX, 2048
GetWaveForm1:
MovsW
And SI, (FOURIERBUFFERLENGTH*2)-1
Loop GetWaveForm1
Pop DS
PopA
Ret
EndP GetWaveForm
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EndDriver:
;******** Provided Variable Table *************
MaxNumberOfChannels DW 0FFFFh ; Maximum number of channels the
; driver can handle.
StopAfterPlay DW 0
DefaultChannels DW 128
DW 7 ; MIDI, hiqual
DW 4 Dup (0)
;******** Provided Procedure Table *************
ProvidedTableStart:
DW Offset DetectCard
DW Offset InitSound ; Playing related
DW Offset ReinitSound
DW Offset UninitSound
DW Offset Poll
DW Offset SetTempo ; Sound variable related
DW Offset SetMixVolume
DW Offset SetStereo
DW Offset LoadSample ; Sample related
DW Offset ReleaseSample
DW Offset ResetMemory
DW Offset GetStatus ; Returns string to show on status line
DW Offset SoundCardScreen ; Sound card 'screen'
DW Offset GetVariable ; For interface
DW Offset SetVariable
DW Offset SendUARTOut
DW Offset GetWaveform
ProvidedTableEnd:
DW 32-(ProvidedTableEnd-ProvidedTableStart)/2 Dup (0)
EndS
End
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