wgp.c

十七种模拟器源代码 非常有用的作课程设计不可缺少的

   // Fix COMMON RAM sync problems

   WriteWord68k(&ROM[0x02E0E],0x600C);

   // Speed Hack M68000A

   WriteLong68k(&ROM[0x0159A],0x067915F3);
   WriteLong68k(&ROM[0x0159E],0x00108DA0);
   WriteLong68k(&ROM[0x015A2],0x13FC0000);	//	move.b	#$00,$AA0000
   WriteLong68k(&ROM[0x015A6],0x00AA0000);	//
   WriteWord68k(&ROM[0x015AA],0x6100-18);

   // Speed Hack M68000B

   WriteWord68k(&ROM[0x40942],0x5279);		//	inc random number
   WriteLong68k(&ROM[0x40944],0x00101682);
   WriteLong68k(&ROM[0x40948],0x13FC0000);	//	move.b	#$00,$AA0000
   WriteLong68k(&ROM[0x4094C],0x00AA0000);	//
   WriteWord68k(&ROM[0x40950],0x6100-16);

   WriteLong68k(&ROM[0x4820C],0x4E714E71);	//	don't kill random number
   WriteWord68k(&ROM[0x48210],0x4E71);

   // ?

   WriteWord68k(&ROM[0x482D2],0x4E71);

   // LAN HEAD ERROR

   WriteWord68k(&ROM[0x504D8],0x6010);

   // Init tc0220ioc emulation
   // ------------------------

   tc0220ioc.RAM  = RAM_INPUT;
   tc0220ioc.ctrl = 0;		//TC0220_STOPCPU;
   reset_tc0220ioc();

   // Init tc0100scn emulation
   // ------------------------

   tc0100scn[0].layer[0].RAM	=RAM_VIDEO+0x0000;
   tc0100scn[0].layer[0].GFX	=GFX;
   tc0100scn[0].layer[0].MASK	=GFX_BG0_SOLID;
   tc0100scn[0].layer[0].SCR	=RAM_SCROLL+0;
   tc0100scn[0].layer[0].type	=0;
   tc0100scn[0].layer[0].bmp_x	=32;
   tc0100scn[0].layer[0].bmp_y	=32;
   tc0100scn[0].layer[0].bmp_w	=320;
   tc0100scn[0].layer[0].bmp_h	=240;
   tc0100scn[0].layer[0].mapper	=&Map_12bit_RGBx;
   tc0100scn[0].layer[0].tile_mask=0x3FFF;
   tc0100scn[0].layer[0].scr_x	=16;
   tc0100scn[0].layer[0].scr_y	=8;

   tc0100scn[0].layer[1].RAM	=RAM_VIDEO+0x8000;
   tc0100scn[0].layer[1].GFX	=GFX;
   tc0100scn[0].layer[1].MASK	=GFX_BG0_SOLID;
   tc0100scn[0].layer[1].SCR	=RAM_SCROLL+2;
   tc0100scn[0].layer[1].type	=0;
   tc0100scn[0].layer[1].bmp_x	=32;
   tc0100scn[0].layer[1].bmp_y	=32;
   tc0100scn[0].layer[1].bmp_w	=320;
   tc0100scn[0].layer[1].bmp_h	=240;
   tc0100scn[0].layer[1].mapper	=&Map_12bit_RGBx;
   tc0100scn[0].layer[1].tile_mask=0x3FFF;
   tc0100scn[0].layer[1].scr_x	=16;
   tc0100scn[0].layer[1].scr_y	=8;

   tc0100scn[0].layer[2].RAM	=RAM_VIDEO+0x4000;
   tc0100scn[0].layer[2].GFX	=GFX_FG0;
   tc0100scn[0].layer[2].SCR	=RAM_SCROLL+4;
   tc0100scn[0].layer[2].type	=3;
   tc0100scn[0].layer[2].bmp_x	=32;
   tc0100scn[0].layer[2].bmp_y	=32;
   tc0100scn[0].layer[2].bmp_w	=320;
   tc0100scn[0].layer[2].bmp_h	=240;
   tc0100scn[0].layer[2].mapper	=&Map_12bit_RGBx;
   tc0100scn[0].layer[2].scr_x	=16;
   tc0100scn[0].layer[2].scr_y	=8;

   tc0100scn[0].RAM     = RAM_VIDEO;
   tc0100scn[0].GFX_FG0 = GFX_FG0;

   init_tc0100scn(0);

   init_16x16_zoom();
   zoom16_ofs = make_16x16_zoom_ofs_type1z();

   obj_id = add_layer_info("Zooming Object" );
   rod_id = add_layer_info("Roadscroll"     );

/*
 *  StarScream Stuff follows
 */

   ByteSwap(ROM,0x80000);
   ByteSwap(RAM,0x70000);

   AddMemFetch(0x000000, 0x03FFFF, ROM+0x000000-0x000000);		// 68000 ROM
   AddMemFetch(-1, -1, NULL);

   AddReadByte(0x000000, 0x0FFFFF, NULL, ROM+0x000000);			// 68000 ROM *
   AddReadByte(0x100000, 0x10FFFF, NULL, RAM_MAIN);			// 68000 RAM *
   AddReadByte(0x300000, 0x30FFFF, NULL, RAM_VIDEO);			// SCREEN RAM *
   AddReadByte(0x500000, 0x51FFFF, NULL, RAM_VIDEO_2);			// ?
   AddReadByte(0x140000, 0x143FFF, NULL, RAM_COMMON);			// COMMON RAM *
   AddReadByte(0x400000, 0x40FFFF, NULL, RAM_OBJECT);			// ?
   AddReadByte(0x180000, 0x18001F, tc0220ioc_rb, NULL);			// INPUT *
   AddReadByte(0x000000, 0xFFFFFF, DefBadReadByte, NULL);		// <Bad Reads>
   AddReadByte(-1, -1, NULL, NULL);

   AddReadWord(0x000000, 0x0FFFFF, NULL, ROM+0x000000);			// 68000 ROM *
   AddReadWord(0x100000, 0x10FFFF, NULL, RAM_MAIN);			// 68000 RAM *
   AddReadWord(0x300000, 0x30FFFF, NULL, RAM_VIDEO);			// SCREEN RAM *
   AddReadWord(0x500000, 0x51FFFF, NULL, RAM_VIDEO_2);			// ?
   AddReadWord(0x140000, 0x143FFF, NULL, RAM_COMMON);			// COMMON RAM *
   AddReadWord(0x400000, 0x40FFFF, NULL, RAM_OBJECT);			// ?
   AddReadWord(0x700000, 0x701FFF, NULL, RAM_COLOUR);			// COLOR RAM *
   AddReadWord(0x200000, 0x20000F, NULL, RAM_INPUT_2);			// ?
   AddReadWord(0x180000, 0x18001F, tc0220ioc_rw, NULL);			// INPUT *
   AddReadWord(0x000000, 0xFFFFFF, DefBadReadWord, NULL);		// <Bad Reads>
   AddReadWord(-1, -1,NULL, NULL);

   AddWriteByte(0x100000, 0x10FFFF, NULL, RAM_MAIN);			// 68000 RAM *
   AddWriteByte(0x306000, 0x306FFF, tc0100scn_0_gfx_fg0_wb, NULL);	// FG0 GFX RAM *
   AddWriteByte(0x300000, 0x30FFFF, NULL, RAM_VIDEO);			// SCREEN RAM *
   AddWriteByte(0x500000, 0x51FFFF, NULL, RAM_VIDEO_2);			// ?
   AddWriteByte(0x140000, 0x143FFF, NULL, RAM_COMMON);			// COMMON RAM *
   AddWriteByte(0x400000, 0x40FFFF, NULL, RAM_OBJECT);			// ?
   AddWriteByte(0x180000, 0x18001F, tc0220ioc_wb, NULL);		// INPUT *
   AddWriteByte(0xAA0000, 0xAA0001, Stop68000, NULL);			// Trap Idle 68000
   AddWriteByte(0x000000, 0xFFFFFF, DefBadWriteByte, NULL);		// <Bad Writes>
   AddWriteByte(-1, -1, NULL, NULL);

   AddWriteWord(0x100000, 0x10FFFF, NULL, RAM_MAIN);			// 68000 RAM *
   AddWriteWord(0x306000, 0x306FFF, tc0100scn_0_gfx_fg0_ww, NULL);	// FG0 GFX RAM *
   AddWriteWord(0x300000, 0x30FFFF, NULL, RAM_VIDEO);			// SCREEN RAM *
   AddWriteWord(0x500000, 0x51FFFF, NULL, RAM_VIDEO_2);			// ?
   AddWriteWord(0x140000, 0x143FFF, NULL, RAM_COMMON);			// COMMON RAM *
   AddWriteWord(0x400000, 0x40FFFF, NULL, RAM_OBJECT);			// ?
   AddWriteWord(0x700000, 0x701FFF, NULL, RAM_COLOUR);			// COLOR RAM *
   AddWriteWord(0x320000, 0x32000F, NULL, RAM_SCROLL);			// SCROLL RAM *
   AddWriteWord(0x520000, 0x52001F, NULL, RAM_SCROLL_2);		// ?
   AddWriteWord(0x180000, 0x18001F, tc0220ioc_ww, NULL);		// INPUT *
   AddWriteWord(0x000000, 0xFFFFFF, DefBadWriteWord, NULL);		// <Bad Writes>
   AddWriteWord(-1, -1, NULL, NULL);

   AddInitMemory();	// Set Starscream mem pointers... 

   AddMemFetchMC68000B(0x000000, 0x03FFFF, ROM+0x040000-0x000000);	// 68000 ROM
   AddMemFetchMC68000B(-1, -1, NULL);

   AddReadByteMC68000B(0x000000, 0x03FFFF, NULL, ROM+0x040000);		// 68000 ROM
   AddReadByteMC68000B(0x100000, 0x107FFF, NULL, RAM_MAIN_2);		// MAIN RAM
   AddReadByteMC68000B(0x140000, 0x143FFF, NULL, RAM_COMMON);		// COMMON RAM *
   AddReadByteMC68000B(0x200000, 0x200003, tc0140syt_read_main_68k, NULL); // SOUND COMM *
   AddReadByteMC68000B(0x000000, 0xFFFFFF, DefBadReadByte, NULL);	// <Bad Reads>
   AddReadByteMC68000B(-1, -1, NULL, NULL);

   AddReadWordMC68000B(0x000000, 0x03FFFF, NULL, ROM+0x040000);		// 68000 ROM
   AddReadWordMC68000B(0x100000, 0x107FFF, NULL, RAM_MAIN_2);		// MAIN RAM
   AddReadWordMC68000B(0x140000, 0x143FFF, NULL, RAM_COMMON);		// COMMON RAM *
   AddReadWordMC68000B(0x000000, 0xFFFFFF, DefBadReadWord, NULL);	// <Bad Reads>
   AddReadWordMC68000B(-1, -1, NULL, NULL);

   AddWriteByteMC68000B(0x100000, 0x107FFF, NULL, RAM_MAIN_2);		// MAIN RAM
   AddWriteByteMC68000B(0x140000, 0x143FFF, NULL, RAM_COMMON);		// COMMON RAM *
   AddWriteByteMC68000B(0x200000, 0x200003, tc0140syt_write_main_68k, NULL); // SOUND COMM *
   AddWriteByteMC68000B(0xAA0000, 0xAA0001, Stop68000, NULL);		// Trap Idle 68000
   AddWriteByteMC68000B(0x000000, 0xFFFFFF, DefBadWriteByte, NULL);	// <Bad Writes>
   AddWriteByteMC68000B(-1, -1, NULL, NULL);

   AddWriteWordMC68000B(0x100000, 0x107FFF, NULL, RAM_MAIN_2);		// MAIN RAM
   AddWriteWordMC68000B(0x140000, 0x143FFF, NULL, RAM_COMMON);		// COMMON RAM *
   AddWriteWordMC68000B(0x000000, 0xFFFFFF, DefBadWriteWord, NULL);	// <Bad Writes>
   AddWriteWordMC68000B(-1, -1, NULL, NULL);

   AddInitMemoryMC68000B();	// Set Starscream mem pointers... 
}

void load_world_grand_prix(void)
{
   load_actual(0);
}

void load_world_grand_prix_japanese(void)
{
   load_actual(1);
}

void ClearWorldGrandPrix(void)
{
   RemoveTaitoYM2610();

   #ifdef RAINE_DEBUG
      //save_debug("ROM.bin",ROM,0x100000,1);
      save_debug("RAM.bin",RAM,0x070000,1);
      save_debug("GFX.bin",GFX_PIV,0x400000,0);
   #endif
}

void ExecuteWorldGrandPrixFrame(void)
{
   cpu_execute_cycles(CPU_68K_0, CPU_FRAME_MHz(12,60));		// M68000 12MHz (60fps)
   #ifdef RAINE_DEBUG
      print_debug("PC0:%06x SR:%04x\n",s68000context.pc,s68000context.sr);
   #endif
   cpu_interrupt(CPU_68K_0, 4);
   cpu_interrupt(CPU_68K_0, 6);
   cpu_interrupt(CPU_68K_0, 6);
   cpu_interrupt(CPU_68K_0, 6);
   cpu_interrupt(CPU_68K_0, 6);
   cpu_interrupt(CPU_68K_0, 6);
   cpu_interrupt(CPU_68K_0, 6);

   cpu_execute_cycles(CPU_68K_1, CPU_FRAME_MHz(12,60));		// M68000 12MHz (60fps)
   #ifdef RAINE_DEBUG
      print_debug("PC1:%06x SR:%04x\n",s68000context.pc,s68000context.sr);
   #endif
   cpu_interrupt(CPU_68K_1, 4);
   cpu_interrupt(CPU_68K_1, 6);

   Taito2610_Frame();				// Z80 and YM2610

   check_layer_switches();
}


static void render_z_system_sprites(void)
{
   int x,y,ta,tb,zz;
   int zx,zy,rx,ry,xx,zzx,zzy;
   UINT8 *map,*SPR_MAP;
   UINT8 *zoom_dat_x;
   UINT8 *zoom_dat_y;

   // OBJECT Z-SYSTEM
   // ---------------

   for(zz=0x4C000;zz<0x4DC00;zz+=16){

      zx=0x7F;
      zy=0x7F;
      if((zx!=0)&&(zy!=0)){

         ta = (ReadWord(&RAM[zz+4]))&0x3FF;
         if(ta!=0){

            x=(32+ReadWord(&RAM[zz+0]))&0x1FF;

            y=(32+ReadWord(&RAM[zz+2]))&0x1FF;

            MAP_PALETTE_MAPPED_NEW(
               (ReadWord(&RAM[zz+6])>>7)&0x3F,
               16,
               map
            );

            if((zx&0x40)!=0){					// [128x128]

            zoom_dat_x = zoom16_ofs+(zx<<3);
            zoom_dat_y = zoom16_ofs+(zy<<3);

            SPR_MAP = RAM + 0x40000 + (ta<<8);

            switch(RAM[zz+5]&0x00){
            case 0x00:

            xx=x;

            for(ry=0;ry<8;ry++){
            zzy = zoom_dat_y[ry];
            if((y>16)&&(y<240+32)){
            ta=0;
            for(rx=0;rx<8;rx++){
            zzx = zoom_dat_x[rx];

            if((x>16)&&(x<320+32)){
               tb=ReadWord(&SPR_MAP[ta])&0x3FFF;
               if(GFX_OBJ_B_SOLID[tb]!=0){			// No pixels; skip
                  if(GFX_OBJ_B_SOLID[tb]==1)			// Some pixels; trans
                     Draw16x16_Trans_Mapped_ZoomXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
                  else						// all pixels; solid
                     Draw16x16_Mapped_ZoomXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
               }
            }
            ta+=4;
            x = (x+zzx)&0x1FF;
            }
            }
            y = (y+zzy)&0x1FF;
            SPR_MAP+=32;
            x=xx;
            }

            break;
            case 0x40:

            x+=(zx+1);
            xx=x;

            for(ry=0;ry<8;ry++){
            zzy = zoom_dat_y[ry];
            if((y>16)&&(y<240+32)){
            ta=0;
            for(rx=0;rx<8;rx++){
            zzx = zoom_dat_x[rx];
            x = (x-zzx)&0x1FF;

            if((x>16)&&(x<320+32)){
               tb=ReadWord(&SPR_MAP[ta])&0x3FFF;
               if(GFX_OBJ_B_SOLID[tb]!=0){			// No pixels; skip
                  if(GFX_OBJ_B_SOLID[tb]==1)			// Some pixels; trans
                     Draw16x16_Trans_Mapped_ZoomXY_FlipY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
                  else						// all pixels; solid
                     Draw16x16_Mapped_ZoomXY_FlipY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
               }
            }
            ta+=2;
            }
            }
            y = (y+zzy)&0x1FF;
            SPR_MAP+=16;
            x=xx;
            }

            break;
            case 0x80:

            y+=zy;
            xx=x;

            for(ry=0;ry<8;ry++){
            zzy = zoom_dat_y[ry];
            y = (y-zzy)&0x1FF;
            if((y>16)&&(y<240+32)){
            ta=0;
            for(rx=0;rx<8;rx++){
            zzx = zoom_dat_x[rx];

            if((x>16)&&(x<320+32)){
               tb=ReadWord(&SPR_MAP[ta])&0x3FFF;
               if(GFX_OBJ_B_SOLID[tb]!=0){			// No pixels; skip
                  if(GFX_OBJ_B_SOLID[tb]==1)			// Some pixels; trans
                     Draw16x16_Trans_Mapped_ZoomXY_FlipX_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
                  else						// all pixels; solid
                     Draw16x16_Mapped_ZoomXY_FlipX_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
               }
            }
            ta+=2;
            x = (x+zzx)&0x1FF;
            }
            }
            SPR_MAP+=16;
            x=xx;
            }

            break;
            case 0xC0:

            x+=(zx+1);
            y+=zy;
            xx=x;

            for(ry=0;ry<8;ry++){
            zzy = zoom_dat_y[ry];
            y = (y-zzy)&0x1FF;
            if((y>16)&&(y<240+32)){
            ta=0;
            for(rx=0;rx<8;rx++){
            zzx = zoom_dat_x[rx];
            x = (x-zzx)&0x1FF;

            if((x>16)&&(x<320+32)){
               tb=ReadWord(&SPR_MAP[ta])&0x3FFF;
               if(GFX_OBJ_B_SOLID[tb]!=0){			// No pixels; skip
                  if(GFX_OBJ_B_SOLID[tb]==1)			// Some pixels; trans
                     Draw16x16_Trans_Mapped_ZoomXY_FlipXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
                  else						// all pixels; solid
                     Draw16x16_Mapped_ZoomXY_FlipXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
               }
            }
            ta+=2;
            }
            }
            SPR_MAP+=16;
            x=xx;
            }

            break;
            }


            }
            else{

            if((zy&0x20)!=0){					// [64x128]

            zoom_dat_x = zoom16_ofs+(((zx<<1)|1)<<3);
            zoom_dat_y = zoom16_ofs+(zy<<3);

            SPR_MAP = RAM + 0x20000 + (ta<<7);

            switch(RAM[zz+5]&0xC0){
            case 0x00:

            xx=x;

            for(ry=0;ry<8;ry++){
            zzy = zoom_dat_y[ry];
            if((y>16)&&(y<240+32)){
            ta=0;
            for(rx=0;rx<4;rx++){
            zzx = zoom_dat_x[rx];

            if((x>16)&&(x<320+32)){
               tb=ReadWord(&SPR_MAP[ta])&0x3FFF;
               if(GFX_OBJ_B_SOLID[tb]!=0){			// No pixels; skip
                  if(GFX_OBJ_B_SOLID[tb]==1)			// Some pixels; trans
                     Draw16x16_Trans_Mapped_ZoomXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
                  else						// all pixels; solid
                     Draw16x16_Mapped_ZoomXY_Rot(&GFX_OBJ_B[tb<<8],x,y,map,zzx,zzy);
               }
            }
            ta+=2;
            x = (x+zzx)&0x1FF;
            }