tecmosys.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

            case 1:			// 16x16
               ta &= 0xFFFC;
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+8,MAP);
            break;
            case 2:			// 32x32
               dx = x;
               dy = y;
               ta &= 0xFFF0;
               for(i = 0; i < 4; i ++){
               x = dx + spr_off[(i<<1) + 0];
               y = dy + spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+8,MAP);
               ta+=4;
               }
            break;
            case 3:			// 64x64
               dx = x;
               dy = y;
               ta &= 0xFFC0;
               for(i = 0; i < 16; i ++){
               x = dx + spr_off[(i<<1) + 0];
               y = dy + spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+8,MAP);
               ta+=4;
               }
            break;
            }
         break;
         case 1:
            switch(RAM[zz+4]&0x03){
            case 0:			// 8x8
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[ta<<6],x,y,MAP);
            break;
            case 1:			// 16x16
               ta &= 0xFFFC;
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+8,MAP);
            break;
            case 2:			// 32x32
               dx = x + 16;
               dy = y;
               ta &= 0xFFF0;
               for(i = 0; i < 4; i ++){
               x = dx - spr_off[(i<<1) + 0];
               y = dy + spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+8,MAP);
               ta+=4;
               }
            break;
            case 3:			// 64x64
               dx = x + 48;
               dy = y;
               ta &= 0xFFC0;
               for(i = 0; i < 16; i ++){
               x = dx - spr_off[(i<<1) + 0];
               y = dy + spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+8,MAP);
               ta+=4;
               }
            break;
            }
         break;
         case 2:
            switch(RAM[zz+4]&0x03){
            case 0:			// 8x8
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[ta<<6],x,y,MAP);
            break;
            case 1:			// 16x16
               ta &= 0xFFFC;
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+0,MAP);
            break;
            case 2:			// 32x32
               dx = x;
               dy = y + 16;
               ta &= 0xFFF0;
               for(i = 0; i < 4; i ++){
               x = dx + spr_off[(i<<1) + 0];
               y = dy - spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+0,MAP);
               ta+=4;
               }
            break;
            case 3:			// 64x64
               dx = x;
               dy = y + 48;
               ta &= 0xFFC0;
               for(i = 0; i < 16; i ++){
               x = dx + spr_off[(i<<1) + 0];
               y = - spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+0)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+1)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+2)<<6],x+0,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipX_Rot(&GFX_SPR[(ta+3)<<6],x+8,y+0,MAP);
               ta+=4;
               }
            break;
            }
         break;
         case 3:
            switch(RAM[zz+4]&0x03){
            case 0:			// 8x8
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[ta<<6],x,y,MAP);
            break;
            case 1:			// 16x16
               ta &= 0xFFFC;
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+0,MAP);
            break;
            case 2:			// 32x32
               dx = x + 16;
               dy = y + 16;
               ta &= 0xFFF0;
               for(i = 0; i < 4; i ++){
               x = dx - spr_off[(i<<1) + 0];
               y = dy - spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+0,MAP);
               ta+=4;
               }
            break;
            case 3:			// 64x64
               dx = x + 48;
               dy = y + 48;
               ta &= 0xFFC0;
               for(i = 0; i < 16; i ++){
               x = dx - spr_off[(i<<1) + 0];
               y = dy - spr_off[(i<<1) + 1];
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+0)<<6],x+8,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+1)<<6],x+0,y+8,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+2)<<6],x+8,y+0,MAP);
               Draw8x8_Trans_Mapped_FlipXY_Rot(&GFX_SPR[(ta+3)<<6],x+0,y+0,MAP);
               ta+=4;
               }
            break;
            }
         break;
      }

   }

   }

   }
   }
}

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

   ClearPaletteMap();

      MAP_PALETTE_MAPPED_NEW(
         0x20,
         16,
         MAP
      );

   bcol=MAP[0];

   /*

   BG0

   */

   MAKE_SCROLL_1024x512_2_16(
      ReadWord(&RAM[0x1A30C]),
      ReadWord(&RAM[0x1A304])+16
   );

   START_SCROLL_1024x512_2_16(64,64,256,224);

      MAP_PALETTE_MAPPED_NEW(
         (RAM[0x14000+zz]>>4)|0x30,
         16,
         MAP
      );

      MAP[0]=bcol;

      Draw16x16_Mapped_Rot(&GFX_BG0[(ReadWord(&RAM[0x15000+zz])&0xFFF)<<8],x,y,MAP);

   END_SCROLL_1024x512_2_16();

   /*

   OBJECT LOW

   */

   draw_tecmo_object(0x84);

   /*

   BG1

   */

   MAKE_SCROLL_1024x512_2_16(
      ReadWord(&RAM[0x1A20C]),
      ReadWord(&RAM[0x1A204])+16
   );

   START_SCROLL_1024x512_2_16(64,64,256,224);

      ta=ReadWord(&RAM[0x13000+zz])&0xFFF;
      if(GFX_BG1_SOLID[ta]){				// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            (RAM[0x12000+zz]>>4)|0x20,
            16,
            MAP
         );

         if(GFX_BG1_SOLID[ta]==1)			// Some pixels; trans
            Draw16x16_Trans_Mapped_Rot(&GFX_BG1[ta<<8],x,y,MAP);
         else						// all pixels; solid
            Draw16x16_Mapped_Rot(&GFX_BG1[ta<<8],x,y,MAP);

      }

   END_SCROLL_1024x512_2_16();

   /*

   OBJECT HIGH

   */

   draw_tecmo_object(0x04);

   /*

   FG0

   */

   MAKE_SCROLL_256x256_2_8(
      ReadWord(&RAM[0x1A10C]),
      ReadWord(&RAM[0x1A104])+16
   );

   START_SCROLL_256x256_2_8(64,64,256,224);

      ta=ReadWord(&RAM[0x10800+zz])&0x7FF;
      if(GFX_FG0_SOLID[ta]){				// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            (RAM[0x10000+zz]>>4)|0x10,
            16,
            MAP
         );

         if(GFX_FG0_SOLID[ta]==1)			// Some pixels; trans
            Draw8x8_Trans_Mapped_Rot(&GFX_FG0[ta<<6],x,y,MAP);
         else						// all pixels; solid
            Draw8x8_Mapped_Rot(&GFX_FG0[ta<<6],x,y,MAP);
      }

   END_SCROLL_256x256_2_8();

}

/*

TECMO 68000 SYSTEM (C)1988-89 TECMO
===================================

Information compiled by [J3d!]

Main CPU......68000
Sound CPUs....Z80, YM2203, YM2203
Screen........256x224

68000 MEMORY MAP
================

-------+--------+--------------------------
Start  | End    | Description
-------+--------+--------------------------
000000 | 03FFFF | 68000 ROM
060000 | 063FFF | 68000 RAM
070000 | 0707FF | FG0 RAM A
070800 | 070FFF | FG0 RAM B
072000 | 072FFF | BG1 RAM A
073000 | 073FFF | BG1 RAM B
074000 | 074FFF | BG0 RAM A
075000 | 075FFF | BG0 RAM B
076000 | 0767FF | SPRITE RAM
078000 | 0787FF | COLOUR RAM
-------+--------+--------------------------

COLOR RAM
=========

- 64 banks of 16 colours
- Format is 12-bit bgr
- 1024 colours onscreen from palette of 4096

------+------------------------------------
Banks | Description
------+------------------------------------
00-0F | Sprites
10-1F | FG0 Plans
20-2F | BG1 Plane
30-3F | BG0 Plane
------+------------------------------------

SPRITE RAM
==========

- 16 bytes/sprite entry
- 128 entries
- Sprites are infact 8x8, but chained to form
  8x8, 16x16, 32x32 and 64x64. 32x32 is most
  common, followed by 16x16, others are rarely
  needed, but sometimes used...

-----+--------+----------------------------
Byte | Bit(s) | Description
-----[phone]+----------------------------
  0  |........| <Garbage?>
  1  |.......x| Flip Y-Axis
  1  |......x.| Flip X-Axis
  1  |.....x..| Sprite Enabled
  1  |.x......| Sprite:BG0 Priority?
  1  |x.......| Sprite:BG1 Priority (0=Sprites Infront)
  2  |xxxxxxxx| Sprite Number (high)
  3  |xxxxxxxx| Sprite Number (low)
  4  |........| <Garbage?>
  5  |......xx| Sprite Size (0=8x8; 1=16x16; 2=32x32; 3=64x64)
  5  |xxxx....| Palette Bank
  6  |xxxxxxxx| Y Pos (high)
  7  |xxxxxxxx| Y Pos (low)
  8  |xxxxxxxx| X Pos (high)
  9  |xxxxxxxx| X Pos (low)
10-15|........| <Unused>
-----+--------+----------------------------

*/