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authoraliaspider2014-10-29 05:36:07 +0100
committeraliaspider2014-10-29 05:36:07 +0100
commita6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a (patch)
tree6f82417b0ab41f3887dd025ee3b85254e28143da /source/c4emu.cpp
parent1d98e1c317fa19687ae6bc3cb8e550ef7531bf02 (diff)
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start moving everything to C
Diffstat (limited to 'source/c4emu.cpp')
-rw-r--r--source/c4emu.cpp889
1 files changed, 0 insertions, 889 deletions
diff --git a/source/c4emu.cpp b/source/c4emu.cpp
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--- a/source/c4emu.cpp
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@@ -1,889 +0,0 @@
-/*******************************************************************************
- Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
- (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
- Jerremy Koot (jkoot@snes9x.com)
-
- (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
-
- (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
- funkyass (funkyass@spam.shaw.ca),
- Joel Yliluoma (http://iki.fi/bisqwit/)
- Kris Bleakley (codeviolation@hotmail.com),
- Matthew Kendora,
- Nach (n-a-c-h@users.sourceforge.net),
- Peter Bortas (peter@bortas.org) and
- zones (kasumitokoduck@yahoo.com)
-
- C4 x86 assembler and some C emulation code
- (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
- _Demo_ (_demo_@zsnes.com), and Nach
-
- C4 C++ code
- (c) Copyright 2003 Brad Jorsch
-
- DSP-1 emulator code
- (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
- John Weidman, neviksti (neviksti@hotmail.com),
- Kris Bleakley, Andreas Naive
-
- DSP-2 emulator code
- (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
- Lord Nightmare (lord_nightmare@users.sourceforge.net
-
- OBC1 emulator code
- (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
- Kris Bleakley
- Ported from x86 assembler to C by sanmaiwashi
-
- SPC7110 and RTC C++ emulator code
- (c) Copyright 2002 Matthew Kendora with research by
- zsKnight, John Weidman, and Dark Force
-
- S-DD1 C emulator code
- (c) Copyright 2003 Brad Jorsch with research by
- Andreas Naive and John Weidman
-
- S-RTC C emulator code
- (c) Copyright 2001 John Weidman
-
- ST010 C++ emulator code
- (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
-
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
-
- Super FX C emulator code
- (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
-
-
- SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
-
-
- Specific ports contains the works of other authors. See headers in
- individual files.
-
- Snes9x homepage: http://www.snes9x.com
-
- Permission to use, copy, modify and distribute Snes9x in both binary and
- source form, for non-commercial purposes, is hereby granted without fee,
- providing that this license information and copyright notice appear with
- all copies and any derived work.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event shall the authors be held liable for any damages
- arising from the use of this software.
-
- Snes9x is freeware for PERSONAL USE only. Commercial users should
- seek permission of the copyright holders first. Commercial use includes
- charging money for Snes9x or software derived from Snes9x.
-
- The copyright holders request that bug fixes and improvements to the code
- should be forwarded to them so everyone can benefit from the modifications
- in future versions.
-
- Super NES and Super Nintendo Entertainment System are trademarks of
- Nintendo Co., Limited and its subsidiary companies.
-*******************************************************************************/
-#ifdef HAVE_CONFIG_H
- #include <config.h>
-#endif
-#include <math.h>
-#include "snes9x.h"
-#include "sar.h"
-#include "memmap.h"
-#include "ppu.h"
-#include "c4.h"
-
-void S9xInitC4 ()
-{
- // Stupid zsnes code, we can't do the logical thing without breaking
- // savestates
-// Memory.C4RAM = &Memory.FillRAM [0x6000];
- memset(Memory.C4RAM, 0, 0x2000);
-}
-
-uint8 S9xGetC4 (uint16 Address)
-{
- return (Memory.C4RAM [Address-0x6000]);
-}
-
-static uint8 C4TestPattern [12 * 4] =
-{
- 0x00, 0x00, 0x00, 0xff,
- 0xff, 0xff, 0x00, 0xff,
- 0x00, 0x00, 0x00, 0xff,
- 0xff, 0xff, 0x00, 0x00,
- 0xff, 0xff, 0x00, 0x00,
- 0x80, 0xff, 0xff, 0x7f,
- 0x00, 0x80, 0x00, 0xff,
- 0x7f, 0x00, 0xff, 0x7f,
- 0xff, 0x7f, 0xff, 0xff,
- 0x00, 0x00, 0x01, 0xff,
- 0xff, 0xfe, 0x00, 0x01,
- 0x00, 0xff, 0xfe, 0x00
-};
-
-
-static void C4ConvOAM(void){
- uint8 *OAMptr=Memory.C4RAM+(Memory.C4RAM[0x626]<<2);
- for(uint8 *i=Memory.C4RAM+0x1fd; i>OAMptr; i-=4){
- // Clear OAM-to-be
- *i=0xe0;
- }
-
- uint16 globalX, globalY;
- uint8 *OAMptr2;
- int16 SprX, SprY;
- uint8 SprName, SprAttr;
- uint8 SprCount;
-
- globalX=READ_WORD(Memory.C4RAM+0x0621);
- globalY=READ_WORD(Memory.C4RAM+0x0623);
- OAMptr2=Memory.C4RAM+0x200+(Memory.C4RAM[0x626]>>2);
-
- if(Memory.C4RAM[0x0620]!=0){
- SprCount=128-Memory.C4RAM[0x626];
- uint8 offset=(Memory.C4RAM[0x626]&3)*2;
- for(int prio=0x30; prio>=0; prio-=0x10){
- uint8 *srcptr=Memory.C4RAM+0x220;
- for(int i=Memory.C4RAM[0x0620]; i>0 && SprCount>0; i--, srcptr+=16){
- if((srcptr[4]&0x30)!=prio) continue;
- SprX=READ_WORD(srcptr)-globalX;
- SprY=READ_WORD(srcptr+2)-globalY;
- SprName=srcptr[5];
- SprAttr=srcptr[4] | srcptr[0x06]; // XXX: mask bits?
-
- uint8 *sprptr=S9xGetMemPointer(READ_3WORD(srcptr+7));
- if(*sprptr!=0){
- int16 X, Y;
- for(int SprCnt=*sprptr++; SprCnt>0 && SprCount>0; SprCnt--, sprptr+=4){
- X=(int8)sprptr[1];
- if(SprAttr&0x40){ // flip X
- X=-X-((sprptr[0]&0x20)?16:8);
- }
- X+=SprX;
- if(X>=-16 && X<=272){
- Y=(int8)sprptr[2];
- if(SprAttr&0x80){
- Y=-Y-((sprptr[0]&0x20)?16:8);
- }
- Y+=SprY;
- if(Y>=-16 && Y<=224){
- OAMptr[0]=X&0xff;
- OAMptr[1]=(uint8)Y;
- OAMptr[2]=SprName+sprptr[3];
- OAMptr[3]=SprAttr^(sprptr[0]&0xc0); // XXX: Carry from SprName addition?
- *OAMptr2 &= ~(3<<offset);
- if(X&0x100) *OAMptr2 |= 1<<offset;
- if(sprptr[0]&0x20) *OAMptr2 |= 2<<offset;
- OAMptr+=4;
- SprCount--;
- offset=(offset+2)&6;
- if(offset==0) OAMptr2++;
- }
- }
- }
- } else if(SprCount>0){
- OAMptr[0]=(uint8)SprX;
- OAMptr[1]=(uint8)SprY;
- OAMptr[2]=SprName;
- OAMptr[3]=SprAttr;
- *OAMptr2 &= ~(3<<offset);
- if(SprX&0x100) *OAMptr2 |= 3<<offset;
- else *OAMptr2 |= 2<<offset;
- OAMptr+=4;
- SprCount--;
- offset=(offset+2)&6;
- if(offset==0) OAMptr2++;
- }
- }
- }
- }
- // XXX: Copy to OAM? I doubt it.
-}
-
-static void C4DoScaleRotate(int row_padding){
- int16 A, B, C, D;
-
- // Calculate matrix
- int32 XScale=READ_WORD(Memory.C4RAM+0x1f8f);
- if(XScale&0x8000) XScale=0x7fff;
- int32 YScale=READ_WORD(Memory.C4RAM+0x1f92);
- if(YScale&0x8000) YScale=0x7fff;
-
- if(READ_WORD(Memory.C4RAM+0x1f80)==0)
- { // no rotation
- // XXX: only do this for C and D?
- // XXX: and then only when YScale is 0x1000?
- A=(int16)XScale;
- B=0;
- C=0;
- D=(int16)YScale;
- }
- else if(READ_WORD(Memory.C4RAM+0x1f80)==128){ // 90 degree rotation
- // XXX: Really do this?
- A=0;
- B=(int16)(-YScale);
- C=(int16)XScale;
- D=0;
- } else if(READ_WORD(Memory.C4RAM+0x1f80)==256){ // 180 degree rotation
- // XXX: Really do this?
- A=(int16)(-XScale);
- B=0;
- C=0;
- D=(int16)(-YScale);
- } else if(READ_WORD(Memory.C4RAM+0x1f80)==384){ // 270 degree rotation
- // XXX: Really do this?
- A=0;
- B=(int16)YScale;
- C=(int16)(-XScale);
- D=0;
- } else {
- A=(int16)SAR(C4CosTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*XScale, 15);
- B=(int16)(-SAR(C4SinTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*YScale, 15));
- C=(int16)SAR(C4SinTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*XScale, 15);
- D=(int16)SAR(C4CosTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*YScale, 15);
- }
-
- // Calculate Pixel Resolution
- uint8 w=Memory.C4RAM[0x1f89]&~7;
- uint8 h=Memory.C4RAM[0x1f8c]&~7;
-
-// printf("%dx%d XScale=%04x YScale=%04x angle=%03x\n", w, h, XScale, YScale, READ_WORD(Memory.C4RAM+0x1f80)&0x1ff);
-// printf("Matrix: [%10g %10g] [%04x %04x]\n", A/4096.0, B/4096.0, A&0xffff, B&0xffff);
-// printf(" [%10g %10g] [%04x %04x]\n", C/4096.0, D/4096.0, C&0xffff, D&0xffff);
-
- // Clear the output RAM
- memset(Memory.C4RAM, 0, (w+row_padding/4)*h/2);
-
- int32 Cx=(int16)READ_WORD(Memory.C4RAM+0x1f83);
- int32 Cy=(int16)READ_WORD(Memory.C4RAM+0x1f86);
-
- // Calculate start position (i.e. (Ox, Oy) = (0, 0))
- // The low 12 bits are fractional, so (Cx<<12) gives us the Cx we want in
- // the function. We do Cx*A etc normally because the matrix parameters
- // already have the fractional parts.
- int32 LineX=(Cx<<12) - Cx*A - Cx*B;
- int32 LineY=(Cy<<12) - Cy*C - Cy*D;
-
- // Start loop
- uint32 X, Y;
- uint8 byte;
- int outidx=0;
- uint8 bit=0x80;
- for(int y=0; y<h; y++){
- X=LineX;
- Y=LineY;
- for(int x=0; x<w; x++){
- if((X>>12)>=w || (Y>>12)>=h){
- byte=0;
- } else {
- uint32 addr=(Y>>12)*w+(X>>12);
- byte=Memory.C4RAM[0x600+(addr>>1)];
- if(addr&1) byte>>=4;
- }
-
- // De-bitplanify
- if(byte&1) Memory.C4RAM[outidx]|=bit;
- if(byte&2) Memory.C4RAM[outidx+1]|=bit;
- if(byte&4) Memory.C4RAM[outidx+16]|=bit;
- if(byte&8) Memory.C4RAM[outidx+17]|=bit;
-
- bit>>=1;
- if(bit==0){
- bit=0x80;
- outidx+=32;
- }
-
- X+=A; // Add 1 to output x => add an A and a C
- Y+=C;
- }
- outidx+=2+row_padding;
- if(outidx&0x10){
- outidx&=~0x10;
- } else {
- outidx-=w*4+row_padding;
- }
- LineX+=B; // Add 1 to output y => add a B and a D
- LineY+=D;
- }
-}
-
-static void C4DrawLine(int32 X1, int32 Y1, int16 Z1,
- int32 X2, int32 Y2, int16 Z2, uint8 Color){
- // Transform coordinates
- C4WFXVal=(short)X1;
- C4WFYVal=(short)Y1;
- C4WFZVal=Z1;
- C4WFScale=Memory.C4RAM[0x1f90];
- C4WFX2Val=Memory.C4RAM[0x1f86];
- C4WFY2Val=Memory.C4RAM[0x1f87];
- C4WFDist=Memory.C4RAM[0x1f88];
- C4TransfWireFrame2();
- X1=(C4WFXVal+48)<<8;
- Y1=(C4WFYVal+48)<<8;
-
- C4WFXVal=(short)X2;
- C4WFYVal=(short)Y2;
- C4WFZVal=Z2;
- C4TransfWireFrame2();
- X2=(C4WFXVal+48)<<8;
- Y2=(C4WFYVal+48)<<8;
-
- // get line info
- C4WFXVal=(short)(X1>>8);
- C4WFYVal=(short)(Y1>>8);
- C4WFX2Val=(short)(X2>>8);
- C4WFY2Val=(short)(Y2>>8);
- C4CalcWireFrame();
- X2=(int16)C4WFXVal;
- Y2=(int16)C4WFYVal;
-
- // render line
- for(int i=C4WFDist?C4WFDist:1; i>0; i--)
- { //.loop
- if(X1>0xff && Y1>0xff && X1<0x6000 && Y1<0x6000)
- {
- uint16 addr=((X1&~0x7ff) + (Y1&~0x7ff)*12 + (Y1&0x700))>>7;
- addr=(((Y1>>8)>>3)<<8)-(((Y1>>8)>>3)<<6)+(((X1>>8)>>3)<<4)+((Y1>>8)&7)*2;
- uint8 bit=0x80>>((X1>>8)&7);
- Memory.C4RAM[addr+0x300]&=~bit;
- Memory.C4RAM[addr+0x301]&=~bit;
- if(Color&1) Memory.C4RAM[addr+0x300]|=bit;
- if(Color&2) Memory.C4RAM[addr+0x301]|=bit;
- }
- X1+=X2;
- Y1+=Y2;
- }
-}
-
-static void C4DrawWireFrame(void)
-{
- uint8 *line=S9xGetMemPointer(READ_3WORD(Memory.C4RAM+0x1f80));
- uint8 *point1, *point2;
- int16 X1, Y1, Z1;
- int16 X2, Y2, Z2;
- uint8 Color;
-
- for(int i=Memory.C4RAM[0x0295]; i>0; i--, line+=5){
- if(line[0]==0xff && line[1]==0xff){
- uint8 *tmp=line-5;
- while(line[2]==0xff && line[3]==0xff) tmp-=5;
- point1=S9xGetMemPointer((Memory.C4RAM[0x1f82]<<16) | (tmp[2]<<8) | tmp[3]);
- } else {
- point1=S9xGetMemPointer((Memory.C4RAM[0x1f82]<<16) | (line[0]<<8) | line[1]);
- }
- point2=S9xGetMemPointer((Memory.C4RAM[0x1f82]<<16) | (line[2]<<8) | line[3]);
-
- X1=(point1[0]<<8) | point1[1];
- Y1=(point1[2]<<8) | point1[3];
- Z1=(point1[4]<<8) | point1[5];
- X2=(point2[0]<<8) | point2[1];
- Y2=(point2[2]<<8) | point2[3];
- Z2=(point2[4]<<8) | point2[5];
- Color=line[4];
- C4DrawLine(X1, Y1, Z1, X2, Y2, Z2, Color);
- }
-}
-
-static void C4TransformLines(void){
- C4WFX2Val=Memory.C4RAM[0x1f83];
- C4WFY2Val=Memory.C4RAM[0x1f86];
- C4WFDist=Memory.C4RAM[0x1f89];
- C4WFScale=Memory.C4RAM[0x1f8c];
-
- // transform vertices
- uint8 *ptr=Memory.C4RAM;
- {
- for(int i=READ_WORD(Memory.C4RAM+0x1f80); i>0; i--, ptr+=0x10)
- {
- C4WFXVal=READ_WORD(ptr+1);
- C4WFYVal=READ_WORD(ptr+5);
- C4WFZVal=READ_WORD(ptr+9);
- C4TransfWireFrame();
-
- // displace
- WRITE_WORD(ptr+1, C4WFXVal+0x80);
- WRITE_WORD(ptr+5, C4WFYVal+0x50);
- }
- }
- WRITE_WORD(Memory.C4RAM+0x600, 23);
- WRITE_WORD(Memory.C4RAM+0x602, 0x60);
- WRITE_WORD(Memory.C4RAM+0x605, 0x40);
- WRITE_WORD(Memory.C4RAM+0x600+8, 23);
- WRITE_WORD(Memory.C4RAM+0x602+8, 0x60);
- WRITE_WORD(Memory.C4RAM+0x605+8, 0x40);
-
- ptr=Memory.C4RAM+0xb02;
- uint8 *ptr2=Memory.C4RAM;
- {
- for(int i=READ_WORD(Memory.C4RAM+0xb00); i>0; i--, ptr+=2, ptr2+=8)
- {
- C4WFXVal=READ_WORD(Memory.C4RAM+(ptr[0]<<4)+1);
- C4WFYVal=READ_WORD(Memory.C4RAM+(ptr[0]<<4)+5);
- C4WFX2Val=READ_WORD(Memory.C4RAM+(ptr[1]<<4)+1);
- C4WFY2Val=READ_WORD(Memory.C4RAM+(ptr[1]<<4)+5);
- C4CalcWireFrame();
- WRITE_WORD(ptr2+0x600, C4WFDist?C4WFDist:1);
- WRITE_WORD(ptr2+0x602, C4WFXVal);
- WRITE_WORD(ptr2+0x605, C4WFYVal);
- }
- }
-}
-static void C4BitPlaneWave(){
- static uint16 bmpdata[]={
- 0x0000, 0x0002, 0x0004, 0x0006, 0x0008, 0x000A, 0x000C, 0x000E,
- 0x0200, 0x0202, 0x0204, 0x0206, 0x0208, 0x020A, 0x020C, 0x020E,
- 0x0400, 0x0402, 0x0404, 0x0406, 0x0408, 0x040A, 0x040C, 0x040E,
- 0x0600, 0x0602, 0x0604, 0x0606, 0x0608, 0x060A, 0x060C, 0x060E,
- 0x0800, 0x0802, 0x0804, 0x0806, 0x0808, 0x080A, 0x080C, 0x080E
- };
-
- uint8 *dst=Memory.C4RAM;
- uint32 waveptr=Memory.C4RAM[0x1f83];
- uint16 mask1=0xc0c0;
- uint16 mask2=0x3f3f;
-
- for(int j=0; j<0x10; j++){
- do {
- int16 height=-((int8)Memory.C4RAM[waveptr+0xb00])-16;
- for(int i=0; i<40; i++){
- uint16 tmp=READ_WORD(dst+bmpdata[i]) & mask2;
- if(height>=0){
- if(height<8){
- tmp|=mask1&READ_WORD(Memory.C4RAM+0xa00+height*2);
- } else {
- tmp|=mask1&0xff00;
- }
- }
- WRITE_WORD(dst+bmpdata[i], tmp);
- height++;
- }
- waveptr=(waveptr+1)&0x7f;
- mask1=(mask1>>2)|(mask1<<6);
- mask2=(mask2>>2)|(mask2<<6);
- } while(mask1!=0xc0c0);
- dst+=16;
-
- do {
- int16 height=-((int8)Memory.C4RAM[waveptr+0xb00])-16;
- for(int i=0; i<40; i++){
- uint16 tmp=READ_WORD(dst+bmpdata[i]) & mask2;
- if(height>=0){
- if(height<8){
- tmp|=mask1&READ_WORD(Memory.C4RAM+0xa10+height*2);
- } else {
- tmp|=mask1&0xff00;
- }
- }
- WRITE_WORD(dst+bmpdata[i], tmp);
- height++;
- }
- waveptr=(waveptr+1)&0x7f;
- mask1=(mask1>>2)|(mask1<<6);
- mask2=(mask2>>2)|(mask2<<6);
- } while(mask1!=0xc0c0);
- dst+=16;
- }
-}
-
-static void C4SprDisintegrate()
-{
- uint8 width, height;
- uint32 StartX, StartY;
- uint8 *src;
- int32 scaleX, scaleY;
- int32 Cx, Cy;
-
- width=Memory.C4RAM[0x1f89];
- height=Memory.C4RAM[0x1f8c];
- Cx=(int16)READ_WORD(Memory.C4RAM+0x1f80);
- Cy=(int16)READ_WORD(Memory.C4RAM+0x1f83);
-
- scaleX=(int16)READ_WORD(Memory.C4RAM+0x1f86);
- scaleY=(int16)READ_WORD(Memory.C4RAM+0x1f8f);
- StartX=-Cx*scaleX+(Cx<<8);
- StartY=-Cy*scaleY+(Cy<<8);
- src=Memory.C4RAM+0x600;
-
- memset(Memory.C4RAM, 0, width*height/2);
-
- for(uint32 y=StartY, i=0; i<height; i++, y+=scaleY)
- {
- for(uint32 x=StartX, j=0; j<width; j++, x+=scaleX)
- {
- if((x>>8)<width && (y>>8)<height && (y>>8)*width+(x>>8)<0x2000)
- {
- uint8 pixel=(j&1)?(*src>>4):*src;
- int idx=(y>>11)*width*4+(x>>11)*32+((y>>8)&7)*2;
- uint8 mask=0x80>>((x>>8)&7);
- if(pixel&1) Memory.C4RAM[idx]|=mask;
- if(pixel&2) Memory.C4RAM[idx+1]|=mask;
- if(pixel&4) Memory.C4RAM[idx+16]|=mask;
- if(pixel&8) Memory.C4RAM[idx+17]|=mask;
- }
- if(j&1) src++;
- }
- }
-}
-
-static void S9xC4ProcessSprites()
-{
- switch(Memory.C4RAM[0x1f4d])
- {
- case 0x00: // Build OAM
- C4ConvOAM();
- break;
-
- case 0x03: // Scale/Rotate
- C4DoScaleRotate(0);
- break;
-
- case 0x05: // Transform Lines
- C4TransformLines();
- break;
-
- case 0x07: // Scale/Rotate
- C4DoScaleRotate(64);
- break;
-
- case 0x08: // Draw wireframe
- C4DrawWireFrame();
- break;
-
- case 0x0b: // Disintegrate
- C4SprDisintegrate();
- break;
-
- case 0x0c: // Wave
- C4BitPlaneWave();
- break;
-
- default:
- break;
- }
-}
-
-void S9xSetC4 (uint8 byte, uint16 Address)
-{
- int i;
- Memory.C4RAM [Address-0x6000] = byte;
- if (Address == 0x7f4f)
- {
- if(Memory.C4RAM[0x1f4d]==0x0e && byte<0x40 && (byte&3)==0)
- {
- Memory.C4RAM[0x1f80]=byte>>2;
- }
- else
- {
- switch (byte)
- {
- case 0x00: // Sprite
- S9xC4ProcessSprites();
- break;
-
- case 0x01: // Draw wireframe
- memset(Memory.C4RAM+0x300, 0, 16*12*3*4);
- C4DrawWireFrame();
- break;
-
- case 0x05: // Propulsion (?)
- {
- int32 tmp=0x10000;
- if(READ_WORD(Memory.C4RAM+0x1f83)){
- tmp=SAR((tmp/READ_WORD(Memory.C4RAM+0x1f83))*READ_WORD(Memory.C4RAM+0x1f81), 8);
- }
- WRITE_WORD(Memory.C4RAM+0x1f80, (uint16)tmp);
- }
- break;
-
- case 0x0d: // Set vector length
- C41FXVal=READ_WORD(Memory.C4RAM+0x1f80);
- C41FYVal=READ_WORD(Memory.C4RAM+0x1f83);
- C41FDistVal=READ_WORD(Memory.C4RAM+0x1f86);
- C4Op0D();
- WRITE_WORD(Memory.C4RAM+0x1f89, C41FXVal);
- WRITE_WORD(Memory.C4RAM+0x1f8c, C41FYVal);
- break;
-
- case 0x10: // Polar to rectangluar
- {
- int32 tmp=SAR((int32)READ_WORD(Memory.C4RAM+0x1f83)*C4CosTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*2, 16);
- WRITE_3WORD(Memory.C4RAM+0x1f86, tmp);
- tmp=SAR((int32)READ_WORD(Memory.C4RAM+0x1f83)*C4SinTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*2, 16);
- WRITE_3WORD(Memory.C4RAM+0x1f89, (tmp-SAR(tmp, 6)));
- }
- break;
-
- case 0x13: // Polar to rectangluar
- {
- int32 tmp=SAR((int32)READ_WORD(Memory.C4RAM+0x1f83)*C4CosTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*2, 8);
- WRITE_3WORD(Memory.C4RAM+0x1f86, tmp);
- tmp=SAR((int32)READ_WORD(Memory.C4RAM+0x1f83)*C4SinTable[READ_WORD(Memory.C4RAM+0x1f80)&0x1ff]*2, 8);
- WRITE_3WORD(Memory.C4RAM+0x1f89, tmp);
- }
- break;
-
- case 0x15: // Pythagorean
- C41FXVal=READ_WORD(Memory.C4RAM+0x1f80);
- C41FYVal=READ_WORD(Memory.C4RAM+0x1f83);
- C41FDist=(int16)sqrt((double)C41FXVal*C41FXVal + (double)C41FYVal*C41FYVal);
- WRITE_WORD(Memory.C4RAM+0x1f80, C41FDist);
- break;
-
- case 0x1f: // atan
- C41FXVal=READ_WORD(Memory.C4RAM+0x1f80);
- C41FYVal=READ_WORD(Memory.C4RAM+0x1f83);
- C4Op1F();
- WRITE_WORD(Memory.C4RAM+0x1f86, C41FAngleRes);
- break;
-
- case 0x22: // Trapezoid
- {
- int16 angle1=READ_WORD(Memory.C4RAM+0x1f8c)&0x1ff;
- int16 angle2=READ_WORD(Memory.C4RAM+0x1f8f)&0x1ff;
- int32 tan1=(C4CosTable[angle1]!=0)?((((int32)C4SinTable[angle1])<<16)/C4CosTable[angle1]):0x80000000;
- int32 tan2=(C4CosTable[angle2]!=0)?((((int32)C4SinTable[angle2])<<16)/C4CosTable[angle2]):0x80000000;
- int16 y = READ_WORD(Memory.C4RAM+0x1f83) - READ_WORD(Memory.C4RAM+0x1f89);
- int16 left, right;
- for(int j=0; j<225; j++)
- {
- if(y>=0)
- {
- left = SAR((int32)tan1*y, 16) -
- READ_WORD(Memory.C4RAM+0x1f80) +
- READ_WORD(Memory.C4RAM+0x1f86);
- right = SAR((int32)tan2*y, 16) -
- READ_WORD(Memory.C4RAM+0x1f80) +
- READ_WORD(Memory.C4RAM+0x1f86) +
- READ_WORD(Memory.C4RAM+0x1f93);
-
- if(left<0 && right<0){
- left=1;
- right=0;
- } else if(left<0){
- left=0;
- } else if(right<0){
- right=0;
- }
- if(left>255 && right>255){
- left=255;
- right=254;
- } else if(left>255){
- left=255;
- } else if(right>255){
- right=255;
- }
- }
- else
- {
- left=1;
- right=0;
- }
- Memory.C4RAM[j+0x800] = (uint8)left;
- Memory.C4RAM[j+0x900] = (uint8)right;
- y++;
- }
- }
- break;
-
- case 0x25: // Multiply
- {
- int32 foo=READ_3WORD(Memory.C4RAM+0x1f80);
- int32 bar=READ_3WORD(Memory.C4RAM+0x1f83);
- foo*=bar;
- WRITE_3WORD(Memory.C4RAM+0x1f80, foo);
- }
- break;
-
- case 0x2d: // Transform Coords
- C4WFXVal=READ_WORD(Memory.C4RAM+0x1f81);
- C4WFYVal=READ_WORD(Memory.C4RAM+0x1f84);
- C4WFZVal=READ_WORD(Memory.C4RAM+0x1f87);
- C4WFX2Val=Memory.C4RAM[0x1f89];
- C4WFY2Val=Memory.C4RAM[0x1f8a];
- C4WFDist=Memory.C4RAM[0x1f8b];
- C4WFScale=READ_WORD(Memory.C4RAM+0x1f90);
- C4TransfWireFrame2();
- WRITE_WORD(Memory.C4RAM+0x1f80, C4WFXVal);
- WRITE_WORD(Memory.C4RAM+0x1f83, C4WFYVal);
- break;
-
- case 0x40: // Sum
- {
- uint16 sum=0;
- for(int i=0; i<0x800; sum+=Memory.C4RAM[i++]);
- WRITE_WORD(Memory.C4RAM+0x1f80, sum);
- }
- break;
-
- case 0x54: // Square
- {
- int64 a=SAR((int64)READ_3WORD(Memory.C4RAM+0x1f80)<<40, 40);
- // printf("%08X%08X\n", (uint32)(a>>32), (uint32)(a&0xFFFFFFFF));
- a*=a;
- // printf("%08X%08X\n", (uint32)(a>>32), (uint32)(a&0xFFFFFFFF));
- WRITE_3WORD(Memory.C4RAM+0x1f83, a);
- WRITE_3WORD(Memory.C4RAM+0x1f86, (a>>24));
- }
- break;
-
- case 0x5c: // Immediate Reg
- for (i = 0; i < 12 * 4; i++)
- Memory.C4RAM [i] = C4TestPattern [i];
- break;
-
- case 0x89: // Immediate ROM
- Memory.C4RAM [0x1f80] = 0x36;
- Memory.C4RAM [0x1f81] = 0x43;
- Memory.C4RAM [0x1f82] = 0x05;
- break;
-
- default:
- break;
- }
- }
- } else if (Address == 0x7f47) {
- // memmove required: Can overlap arbitrarily [Neb]
- memmove(Memory.C4RAM+(READ_WORD(Memory.C4RAM+0x1f45)&0x1fff),
- S9xGetMemPointer(READ_3WORD(Memory.C4RAM+0x1f40)),
- READ_WORD(Memory.C4RAM+0x1f43));
- }
-}
-
-int16 C4SinTable[512] = {
- 0, 402, 804, 1206, 1607, 2009, 2410, 2811,
- 3211, 3611, 4011, 4409, 4808, 5205, 5602, 5997,
- 6392, 6786, 7179, 7571, 7961, 8351, 8739, 9126,
- 9512, 9896, 10278, 10659, 11039, 11416, 11793, 12167,
- 12539, 12910, 13278, 13645, 14010, 14372, 14732, 15090,
- 15446, 15800, 16151, 16499, 16846, 17189, 17530, 17869,
- 18204, 18537, 18868, 19195, 19519, 19841, 20159, 20475,
- 20787, 21097, 21403, 21706, 22005, 22301, 22594, 22884,
- 23170, 23453, 23732, 24007, 24279, 24547, 24812, 25073,
- 25330, 25583, 25832, 26077, 26319, 26557, 26790, 27020,
- 27245, 27466, 27684, 27897, 28106, 28310, 28511, 28707,
- 28898, 29086, 29269, 29447, 29621, 29791, 29956, 30117,
- 30273, 30425, 30572, 30714, 30852, 30985, 31114, 31237,
- 31357, 31471, 31581, 31685, 31785, 31881, 31971, 32057,
- 32138, 32214, 32285, 32351, 32413, 32469, 32521, 32568,
- 32610, 32647, 32679, 32706, 32728, 32745, 32758, 32765,
- 32767, 32765, 32758, 32745, 32728, 32706, 32679, 32647,
- 32610, 32568, 32521, 32469, 32413, 32351, 32285, 32214,
- 32138, 32057, 31971, 31881, 31785, 31685, 31581, 31471,
- 31357, 31237, 31114, 30985, 30852, 30714, 30572, 30425,
- 30273, 30117, 29956, 29791, 29621, 29447, 29269, 29086,
- 28898, 28707, 28511, 28310, 28106, 27897, 27684, 27466,
- 27245, 27020, 26790, 26557, 26319, 26077, 25832, 25583,
- 25330, 25073, 24812, 24547, 24279, 24007, 23732, 23453,
- 23170, 22884, 22594, 22301, 22005, 21706, 21403, 21097,
- 20787, 20475, 20159, 19841, 19519, 19195, 18868, 18537,
- 18204, 17869, 17530, 17189, 16846, 16499, 16151, 15800,
- 15446, 15090, 14732, 14372, 14010, 13645, 13278, 12910,
- 12539, 12167, 11793, 11416, 11039, 10659, 10278, 9896,
- 9512, 9126, 8739, 8351, 7961, 7571, 7179, 6786,
- 6392, 5997, 5602, 5205, 4808, 4409, 4011, 3611,
- 3211, 2811, 2410, 2009, 1607, 1206, 804, 402,
- 0, -402, -804, -1206, -1607, -2009, -2410, -2811,
- -3211, -3611, -4011, -4409, -4808, -5205, -5602, -5997,
- -6392, -6786, -7179, -7571, -7961, -8351, -8739, -9126,
- -9512, -9896, -10278, -10659, -11039, -11416, -11793, -12167,
- -12539, -12910, -13278, -13645, -14010, -14372, -14732, -15090,
- -15446, -15800, -16151, -16499, -16846, -17189, -17530, -17869,
- -18204, -18537, -18868, -19195, -19519, -19841, -20159, -20475,
- -20787, -21097, -21403, -21706, -22005, -22301, -22594, -22884,
- -23170, -23453, -23732, -24007, -24279, -24547, -24812, -25073,
- -25330, -25583, -25832, -26077, -26319, -26557, -26790, -27020,
- -27245, -27466, -27684, -27897, -28106, -28310, -28511, -28707,
- -28898, -29086, -29269, -29447, -29621, -29791, -29956, -30117,
- -30273, -30425, -30572, -30714, -30852, -30985, -31114, -31237,
- -31357, -31471, -31581, -31685, -31785, -31881, -31971, -32057,
- -32138, -32214, -32285, -32351, -32413, -32469, -32521, -32568,
- -32610, -32647, -32679, -32706, -32728, -32745, -32758, -32765,
- -32767, -32765, -32758, -32745, -32728, -32706, -32679, -32647,
- -32610, -32568, -32521, -32469, -32413, -32351, -32285, -32214,
- -32138, -32057, -31971, -31881, -31785, -31685, -31581, -31471,
- -31357, -31237, -31114, -30985, -30852, -30714, -30572, -30425,
- -30273, -30117, -29956, -29791, -29621, -29447, -29269, -29086,
- -28898, -28707, -28511, -28310, -28106, -27897, -27684, -27466,
- -27245, -27020, -26790, -26557, -26319, -26077, -25832, -25583,
- -25330, -25073, -24812, -24547, -24279, -24007, -23732, -23453,
- -23170, -22884, -22594, -22301, -22005, -21706, -21403, -21097,
- -20787, -20475, -20159, -19841, -19519, -19195, -18868, -18537,
- -18204, -17869, -17530, -17189, -16846, -16499, -16151, -15800,
- -15446, -15090, -14732, -14372, -14010, -13645, -13278, -12910,
- -12539, -12167, -11793, -11416, -11039, -10659, -10278, -9896,
- -9512, -9126, -8739, -8351, -7961, -7571, -7179, -6786,
- -6392, -5997, -5602, -5205, -4808, -4409, -4011, -3611,
- -3211, -2811, -2410, -2009, -1607, -1206, -804, -402
-};
-
-int16 C4CosTable[512] = {
- 32767, 32765, 32758, 32745, 32728, 32706, 32679, 32647,
- 32610, 32568, 32521, 32469, 32413, 32351, 32285, 32214,
- 32138, 32057, 31971, 31881, 31785, 31685, 31581, 31471,
- 31357, 31237, 31114, 30985, 30852, 30714, 30572, 30425,
- 30273, 30117, 29956, 29791, 29621, 29447, 29269, 29086,
- 28898, 28707, 28511, 28310, 28106, 27897, 27684, 27466,
- 27245, 27020, 26790, 26557, 26319, 26077, 25832, 25583,
- 25330, 25073, 24812, 24547, 24279, 24007, 23732, 23453,
- 23170, 22884, 22594, 22301, 22005, 21706, 21403, 21097,
- 20787, 20475, 20159, 19841, 19519, 19195, 18868, 18537,
- 18204, 17869, 17530, 17189, 16846, 16499, 16151, 15800,
- 15446, 15090, 14732, 14372, 14010, 13645, 13278, 12910,
- 12539, 12167, 11793, 11416, 11039, 10659, 10278, 9896,
- 9512, 9126, 8739, 8351, 7961, 7571, 7179, 6786,
- 6392, 5997, 5602, 5205, 4808, 4409, 4011, 3611,
- 3211, 2811, 2410, 2009, 1607, 1206, 804, 402,
- 0, -402, -804, -1206, -1607, -2009, -2410, -2811,
- -3211, -3611, -4011, -4409, -4808, -5205, -5602, -5997,
- -6392, -6786, -7179, -7571, -7961, -8351, -8739, -9126,
- -9512, -9896, -10278, -10659, -11039, -11416, -11793, -12167,
- -12539, -12910, -13278, -13645, -14010, -14372, -14732, -15090,
- -15446, -15800, -16151, -16499, -16846, -17189, -17530, -17869,
- -18204, -18537, -18868, -19195, -19519, -19841, -20159, -20475,
- -20787, -21097, -21403, -21706, -22005, -22301, -22594, -22884,
- -23170, -23453, -23732, -24007, -24279, -24547, -24812, -25073,
- -25330, -25583, -25832, -26077, -26319, -26557, -26790, -27020,
- -27245, -27466, -27684, -27897, -28106, -28310, -28511, -28707,
- -28898, -29086, -29269, -29447, -29621, -29791, -29956, -30117,
- -30273, -30425, -30572, -30714, -30852, -30985, -31114, -31237,
- -31357, -31471, -31581, -31685, -31785, -31881, -31971, -32057,
- -32138, -32214, -32285, -32351, -32413, -32469, -32521, -32568,
- -32610, -32647, -32679, -32706, -32728, -32745, -32758, -32765,
- -32767, -32765, -32758, -32745, -32728, -32706, -32679, -32647,
- -32610, -32568, -32521, -32469, -32413, -32351, -32285, -32214,
- -32138, -32057, -31971, -31881, -31785, -31685, -31581, -31471,
- -31357, -31237, -31114, -30985, -30852, -30714, -30572, -30425,
- -30273, -30117, -29956, -29791, -29621, -29447, -29269, -29086,
- -28898, -28707, -28511, -28310, -28106, -27897, -27684, -27466,
- -27245, -27020, -26790, -26557, -26319, -26077, -25832, -25583,
- -25330, -25073, -24812, -24547, -24279, -24007, -23732, -23453,
- -23170, -22884, -22594, -22301, -22005, -21706, -21403, -21097,
- -20787, -20475, -20159, -19841, -19519, -19195, -18868, -18537,
- -18204, -17869, -17530, -17189, -16846, -16499, -16151, -15800,
- -15446, -15090, -14732, -14372, -14010, -13645, -13278, -12910,
- -12539, -12167, -11793, -11416, -11039, -10659, -10278, -9896,
- -9512, -9126, -8739, -8351, -7961, -7571, -7179, -6786,
- -6392, -5997, -5602, -5205, -4808, -4409, -4011, -3611,
- -3211, -2811, -2410, -2009, -1607, -1206, -804, -402,
- 0, 402, 804, 1206, 1607, 2009, 2410, 2811,
- 3211, 3611, 4011, 4409, 4808, 5205, 5602, 5997,
- 6392, 6786, 7179, 7571, 7961, 8351, 8739, 9126,
- 9512, 9896, 10278, 10659, 11039, 11416, 11793, 12167,
- 12539, 12910, 13278, 13645, 14010, 14372, 14732, 15090,
- 15446, 15800, 16151, 16499, 16846, 17189, 17530, 17869,
- 18204, 18537, 18868, 19195, 19519, 19841, 20159, 20475,
- 20787, 21097, 21403, 21706, 22005, 22301, 22594, 22884,
- 23170, 23453, 23732, 24007, 24279, 24547, 24812, 25073,
- 25330, 25583, 25832, 26077, 26319, 26557, 26790, 27020,
- 27245, 27466, 27684, 27897, 28106, 28310, 28511, 28707,
- 28898, 29086, 29269, 29447, 29621, 29791, 29956, 30117,
- 30273, 30425, 30572, 30714, 30852, 30985, 31114, 31237,
- 31357, 31471, 31581, 31685, 31785, 31881, 31971, 32057,
- 32138, 32214, 32285, 32351, 32413, 32469, 32521, 32568,
- 32610, 32647, 32679, 32706, 32728, 32745, 32758, 32765
-};
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 08:45:32 +0000