eaction2.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

   if(!load_rom("ea2.b60", RAM, 0x80000)) return;
   for(ta=0;ta<0x80000;ta++){
      ROM[(ta<<2)+0]=RAM[ta];
   }
   if(!load_rom("ea2.b61", RAM, 0x80000)) return;
   for(ta=0;ta<0x80000;ta++){
      ROM[(ta<<2)+1]=RAM[ta];
   }
   if(!load_rom("ea2.b62", RAM, 0x80000)) return;
   for(ta=0;ta<0x80000;ta++){
      ROM[(ta<<2)+2]=RAM[ta];
   }
   if(!load_rom("ea2.b63", RAM, 0x80000)) return;
   for(ta=0;ta<0x80000;ta++){
      ROM[(ta<<2)+3]=RAM[ta];
   }

   // 68000 code
   M68000ROM = load_region[REGION_ROM2];
   if(!(PCMROM=AllocateMem(0x800000))) return;   
   load_be("ea2.b43",PCMROM+0x000000,0x80000);
   load_be("ea2.b44",PCMROM+0x100000,0x80000);
   load_be("ea2.b45",PCMROM+0x200000,0x80000);
   load_be("ea2.b46",PCMROM+0x300000,0x80000);

   load_be("ea2.b32",PCMROM+0x400000,0x80000);
   load_be("ea2.b33",PCMROM+0x500000,0x80000);
   load_be("ea2.b10",PCMROM+0x600000,0x80000);
   load_be("ea2.b11",PCMROM+0x700000,0x80000);
   
   max_banks_this_game=3; //=memory_region_length(REGION_SOUND1)/0x400000;

   memset(RAM+0x00000,0x00,0x80000);
   memset(RAM+0x69000,0xFF,0x01000);

   // EEPROM HACK
   // -----------

   WriteWord68k(&ROM[0x005DC4],0x7F00);		//	raine	#$00	<eeprom read/write>
   WriteWord68k(&ROM[0x005DC6],0x4ED6);		//	jmp	(a6)

   ROM[0x18C8]=0x4E;		// Skip Old
   ROM[0x18C9]=0xF9;		// (JMP $00A000)
   ROM[0x18CA]=0x00;
   ROM[0x18CB]=0x00;
   ROM[0x18CC]=0xA0;
   ROM[0x18CD]=0x00;

   ROM[0xA000]=0x4E;		// Random
   ROM[0xA001]=0xB9;		// (JSR $001044)
   ROM[0xA002]=0x00;
   ROM[0xA003]=0x00;
   ROM[0xA004]=0x10;
   ROM[0xA005]=0x44;

   WriteWord68k(&ROM[0xA006],0x7F02);		//	raine	#$02	<stop cpu>
   WriteWord68k(&ROM[0xA008],0x6100-10);	//	bra.s	<loop>

   F3SystemEEPROMAccess=&F3SysEEPROMAccessMode2;


   set_colour_mapper(&col_map_xxxx_xxxx_rrrr_rrrr_gggg_gggg_bbbb_bbbb);
   InitPaletteMap(RAM+0x60000, 0x200, 0x40, 0x8000);

   // Init tc0003vcu emulation
   // ------------------------

   tc0003vcu.RAM	= RAM+0x20000;
// Mapper disabled
   tc0003vcu.bmp_x	= 64;
   tc0003vcu.bmp_y	= 64;
   tc0003vcu.bmp_w	= 320;
   tc0003vcu.bmp_h	= 232;
   tc0003vcu.scr_x	= 0;
   tc0003vcu.scr_y	= 0;

   // Init tc0200obj emulation
   // ------------------------

   tc0200obj.RAM	= RAM+0x20000;
   tc0200obj.RAM_B	= RAM+0x28000;
   tc0200obj.GFX	= GFX_SPR;
   tc0200obj.MASK	= GFX_SPR_SOLID;
   tc0200obj.bmp_x	= 64;
   tc0200obj.bmp_y	= 64;
   tc0200obj.bmp_w	= 320;
   tc0200obj.bmp_h	= 232;
// Mapper disabled
   tc0200obj.tile_mask	= 0x7FFF;
   tc0200obj.ofs_x	= 0;
   tc0200obj.ofs_y	= 0;

   tc0200obj.cols	= 32;

   init_tc0200obj();

   init_f3_system_ioc(F3_IOC_2P_3BUTTON);

   init_m68k();
   setup_sound_68000();
}

void ClearEAction2(void)
{
   save_eeprom();

#ifdef RAINE_DEBUG
      save_debug("ROM.bin",ROM,0x200000,0);
      save_debug("RAM.bin",RAM,0x080000,0);
      //save_debug("GFX.bin",GFX,0x5D4E00,0);
#endif
}

void ExecuteEAction2Frame(void)
{

  int ta;
  for (ta=0; ta<f3_slices; ta++) {
    Execute68020(190000/f3_slices);
   /*#ifdef RAINE_DEBUG
      print_debug("PC:%06x SR:%04x\n",regs.pc,regs.sr);
   #endif*/
    if (RaineSoundCard) {
      cpu_execute_cycles(CPU_68K_0, CPU_FRAME_MHz(16,60*f3_slices)); // M68000 16MHz (60fps)
      if (int7_active)
	f3_timer_callback();
    }
  }
  Interrupt68020(2);
  Execute68020(10000);
  // Why are these seperated ???
  Interrupt68020(5);
  Interrupt68020(3);
  
  IntF3System();
}

void DrawEAction2(void)
{
   int x16,y16,zz,zzz,zzzz;
   int ta,x,y;
   UINT8 *MAP;

   ClearPaletteMap();

   // Init tc0003vcu emulation
   // ------------------------

   tc0003vcu_layer_count = 0;

   if(check_layer_enabled(f3_bg0_id)){
   MAKE_SCROLL_1024x512_4_16(
      (ReadWord68k(&RAM_SCR0[0])-SCR0_XOFS)>>6,
      (ReadWord68k(&RAM_SCR0[8])-SCR0_YOFS)>>7
   );

   zz=zzzz;

   for(y=(64-y16);y<(232+64);y+=16){
   for(x=(64-x16);x<(320+64);x+=16){

      MAP_PALETTE_MAPPED_NEW(
         ReadWord68k(&RAM_BG0[zz])&0x1FF,
         32,
         MAP
      );

      (*Draw16x16_Mapped_JumpList[(RAM_BG0[zz]&0xC0)>>6])(&GFX_BG0[(ReadWord68k(&RAM_BG0[zz+2])&0x7FFF)<<8],x,y,MAP);

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zzzz=(zzzz+0x100)&0x1FFF;
   zz=zzzz;
   }
   }


   if(check_layer_enabled(f3_bg1_id)){
   MAKE_SCROLL_1024x512_4_16(
      (ReadWord68k(&RAM_SCR1[0])-SCR1_XOFS)>>6,
      (ReadWord68k(&RAM_SCR1[8])-SCR1_YOFS)>>7
   );

   zz=zzzz;

   for(y=(64-y16);y<(232+64);y+=16){
   for(x=(64-x16);x<(320+64);x+=16){

   ta=ReadWord68k(&RAM_BG1[zz+2])&0x7FFF;
   if(ta!=0){

      MAP_PALETTE_MAPPED_NEW(
         ReadWord68k(&RAM_BG1[zz])&0x1FF,
         32,
         MAP
      );

      if(GFX_BG0_SOLID[ta]==0){
         switch(RAM_BG1[zz]&0xC0){
         case 0x00: Draw16x16_Trans_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Trans_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Trans_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Trans_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
      else{
         switch(RAM_BG1[zz]&0xC0){
         case 0x00: Draw16x16_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
   }

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zzzz=(zzzz+0x100)&0x1FFF;
   zz=zzzz;
   }
   }

   if(check_layer_enabled(f3_bg2_id)){
   MAKE_SCROLL_1024x512_4_16(
      (ReadWord68k(&RAM_SCR2[0])-SCR2_XOFS)>>6,
      (ReadWord68k(&RAM_SCR2[8])-SCR2_YOFS)>>7
   );

   zz=zzzz;

   for(y=(64-y16);y<(232+64);y+=16){
   for(x=(64-x16);x<(320+64);x+=16){

   ta=ReadWord68k(&RAM_BG2[zz+2])&0x7FFF;
   if(ta!=0){

      MAP_PALETTE_MAPPED_NEW(
         ReadWord68k(&RAM_BG2[zz])&0x1FF,
         32,
         MAP
      );

      if(GFX_BG0_SOLID[ta]==0){
         switch(RAM_BG2[zz]&0xC0){
         case 0x00: Draw16x16_Trans_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Trans_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Trans_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Trans_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
      else{
         switch(RAM_BG2[zz]&0xC0){
         case 0x00: Draw16x16_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
   }

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zzzz=(zzzz+0x100)&0x1FFF;
   zz=zzzz;
   }
   }

   if(check_layer_enabled(f3_bg3_id)){
   MAKE_SCROLL_1024x512_4_16(
      (ReadWord68k(&RAM_SCR3[0])-SCR3_XOFS)>>6,
      (ReadWord68k(&RAM_SCR3[8])-SCR3_YOFS)>>7
   );

   zz=zzzz;

   for(y=(64-y16);y<(232+64);y+=16){
   for(x=(64-x16);x<(320+64);x+=16){

   ta=ReadWord68k(&RAM_BG3[zz+2])&0x7FFF;
   if(ta!=0){

      MAP_PALETTE_MAPPED_NEW(
         ReadWord68k(&RAM_BG3[zz])&0x1FF,
         32,
         MAP
      );

      if(GFX_BG0_SOLID[ta]==0){
         switch(RAM_BG3[zz]&0xC0){
         case 0x00: Draw16x16_Trans_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Trans_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Trans_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Trans_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
      else{
         switch(RAM_BG3[zz]&0xC0){
         case 0x00: Draw16x16_Mapped_Rot(&GFX_BG0[ta<<8],x,y,MAP);        break;
         case 0x40: Draw16x16_Mapped_FlipY_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0x80: Draw16x16_Mapped_FlipX_Rot(&GFX_BG0[ta<<8],x,y,MAP);  break;
         case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&GFX_BG0[ta<<8],x,y,MAP); break;
         }
      }
   }

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zzzz=(zzzz+0x100)&0x1FFF;
   zz=zzzz;
   }
   }

   // object

   render_tc0200obj_mapped_f3system();

   if(check_layer_enabled(f3_bg5_id)){
      f3video_render_fg0();
   }
}