Ported setnoise to C and cleaned up the source.
This commit is contained in:
jbo_85
104
zsnes/src/ui.asm
104
zsnes/src/ui.asm
@@ -67,45 +67,6 @@ NEWSYM YesMMX, db 'MMX support found and enabled.',13,10,13,10,0
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SECTION .text
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;*******************************************************
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; Set Noise Data
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;*******************************************************
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NEWSYM setnoise
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mov edi,NoiseData
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mov ebx,256
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mov ecx,128
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xor esi,esi
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xor edx,edx
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.next
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mov al,[.samplenoise+esi]
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add al,[.samplenoise+edx]
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mov [edi],al
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inc edi
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inc esi
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and esi,07Fh
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dec edx
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and edx,07Fh
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dec ecx
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jnz .next
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dec edx
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and edx,07Fh
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mov ecx,128
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dec ebx
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jnz .next
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ret
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SECTION .data
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.samplenoise:
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db 27,232,234,138,187,246,176,81,25,241,1,127,154,190,195,103,231,165,220,238
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db 232,189,57,201,123,75,63,143,145,159,13,236,191,142,56,164,222,80,88,13
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db 148,118,162,212,157,146,176,0,241,88,244,238,51,235,149,50,77,212,186,241
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db 88,32,23,206,1,24,48,244,248,210,253,77,19,100,83,222,108,68,11,58
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db 152,161,223,245,4,105,3,82,15,130,171,242,141,2,172,218,152,97,223,157
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db 93,75,83,238,104,238,131,70,22,252,180,82,110,123,106,133,183,209,48,230
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db 157,205,27,21,107,63,85,164
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SECTION .text
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;*******************************************************
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; Allocate Memory, ebx = size,eax returned = LFB pointer
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;*******************************************************
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@@ -256,7 +217,6 @@ NEWSYM spcRamcmp, resb 65536
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NEWSYM VolumeConvTable, resw 32768
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NEWSYM dspWptr, resd 256
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NEWSYM dspRptr, resd 256
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NEWSYM NoiseData, resb 32768
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; makevid.asm
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@@ -271,55 +231,6 @@ LinearAddress resd 1 ; Returned by function
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BlockHandle resd 1 ; Returned by function
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ZSNESAddress resd 1 ; Returned by function
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SECTION .text
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;*******************************************************
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; Allocate Pointer Sets variables with pointer values
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;*******************************************************
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AllocateLDTDescriptor:
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%ifndef __UNIXSDL__
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;Get ZSNES Base
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mov ax,ds
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mov bx,ax
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mov eax,0006h
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int 31h
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jc .FatalError
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mov [ZSNESBase+2],cx
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mov [ZSNESBase],dx
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ret
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.FatalError
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; maybe dosexit?
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%endif
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ret
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AllocateBlock:
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%ifndef __UNIXSDL__
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mov eax,0501h
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mov bx,[BlockSize+2]
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mov cx,[BlockSize]
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int 31h
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jc .FatalError
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mov [LinearAddress+2],bx
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mov [LinearAddress],cx
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mov [BlockHandle+2],si
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mov [BlockHandle],di
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mov eax,[LinearAddress]
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sub eax,[ZSNESBase]
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and eax,0FFFFFFE0h
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add eax,40h
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mov [ZSNESAddress],eax
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xor ebx,ebx
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ret
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.FatalError
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mov ebx,1
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%endif
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ret
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SECTION .bss
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;ALIGN32
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vbufaptr resd 1
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@@ -336,9 +247,6 @@ memfreearray resd 12
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SECTION .text
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%macro AllocmemFail 3
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mov ebx,%1
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add ebx,1000h
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@@ -380,12 +288,12 @@ SECTION .text
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; AllocmemFail 8192*1024+4096,spc7110romptr,outofmemoryb
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; ret
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outofmemoryb
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%ifdef __MSDOS__
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mov ax,3
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int 10h
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%endif
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jmp outofmemory
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;outofmemoryb
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;%ifdef __MSDOS__
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; mov ax,3
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; int 10h
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;%endif
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; jmp outofmemory
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NEWSYM allocptr
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mov dword[cmemallocptr],memfreearray
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@@ -147,7 +147,6 @@ void WaitForKey();
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void MMXCheck();
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void allocmem();
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void InitSPC();
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void setnoise();
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void SystemInit();
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void StartUp();
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@@ -210,6 +209,35 @@ void cycleinputdevice()
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}
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}
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unsigned char NoiseData[32768];
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const unsigned char samplenoise[128] = {
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27,232,234,138,187,246,176, 81, 25,241, 1,127,154,190,195,103,
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231,165,220,238,232,189, 57,201,123, 75, 63,143,145,159, 13,236,
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191,142, 56,164,222, 80, 88, 13,148,118,162,212,157,146,176, 0,
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241, 88,244,238, 51,235,149, 50, 77,212,186,241, 88, 32, 23,206,
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1, 24, 48,244,248,210,253, 77, 19,100, 83,222,108, 68, 11, 58,
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152,161,223,245, 4,105, 3, 82, 15,130,171,242,141, 2,172,218,
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152, 97,223,157, 93, 75, 83,238,104,238,131, 70, 22,252,180, 82,
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110,123,106,133,183,209, 48,230,157,205, 27, 21,107, 63, 85,164};
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void setnoise()
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{
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unsigned short ctr1, ctr2, ptr1=0;
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unsigned char ptr2=0, ptr3=0;
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for(ctr1=256;ctr1>0;ctr1--)
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{
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for(ctr2=128;ctr2>0;ctr2--,ptr1++)
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{
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NoiseData[ptr1] = (samplenoise[ptr2] + samplenoise[ptr3]);
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ptr2=(ptr2+1)&0x7f;
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ptr3=(ptr3-1)&0x7f;
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}
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ptr3=(ptr3-1)&0x7f;
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}
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}
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extern unsigned int xa;
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extern unsigned char soundon, SPCDisable, spcon, FPSOn, FPSAtStart;
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@@ -247,7 +275,7 @@ void zstart ()
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#ifdef OPENSPC
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OSPC_Init();
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#else
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asm_call(setnoise);
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setnoise();
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asm_call(InitSPC);
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#endif
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