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Added RAMDAC and identified vram to the chsuper driver.

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This commit is contained in:
Angelo Salese 2009-03-13 13:29:02 +00:00
parent c128e5affd
commit ccff05d2df
1 changed files with 77 additions and 4 deletions
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81
src/mame/drivers/chsuper.c
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@ -8,17 +8,85 @@ static VIDEO_START(chsuper)
static VIDEO_UPDATE(chsuper)
{
const gfx_element *gfx = screen->machine->gfx[0];
UINT8 *vram = memory_region(screen->machine, "vram");
int count = 0x0000;
int y,x;
for (y=0;y<64;y++)
{
for (x=0;x<64;x++)
{
int tile = ((vram[count+1]<<8) | vram[count]) & 0x3fff;
//int colour = tile>>12;
drawgfx(bitmap,gfx,tile,0,0,0,x*8,y*8,cliprect,TRANSPARENCY_NONE,0);
count+=2;
}
}
return 0;
}
static WRITE8_HANDLER( paletteram_io_w )
{
static int pal_offs,r,g,b,internal_pal_offs;
switch(offset)
{
case 0:
pal_offs = data;
break;
case 2:
internal_pal_offs = 0;
break;
case 1:
switch(internal_pal_offs)
{
case 0:
r = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
internal_pal_offs++;
break;
case 1:
g = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
internal_pal_offs++;
break;
case 2:
b = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
palette_set_color(space->machine, pal_offs, MAKE_RGB(r, g, b));
internal_pal_offs = 0;
pal_offs++;
break;
}
break;
}
}
static READ8_HANDLER( ff_r )
{
return 0xff;
}
static WRITE8_HANDLER( chsuper_vram_w )
{
UINT8 *vram = memory_region(space->machine, "vram");
vram[offset] = data;
}
static ADDRESS_MAP_START( chsuper_prg_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0xefff) AM_ROM
AM_RANGE(0xf000, 0xffff) AM_RAM AM_REGION("maincpu", 0xf000)
AM_RANGE(0x00000, 0x0efff) AM_ROM
AM_RANGE(0x00000, 0x01fff) AM_WRITE( chsuper_vram_w )
AM_RANGE(0x0f000, 0x0ffff) AM_RAM AM_REGION("maincpu", 0xf000)
AM_RANGE(0xfb000, 0xfbfff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( chsuper_portmap, ADDRESS_SPACE_IO, 8 )
AM_RANGE( 0x0000, 0x003f ) AM_RAM // Z180 internal regs
AM_RANGE( 0x00e8, 0x00e8 ) AM_READ( ff_r )
AM_RANGE( 0x00fc, 0x00fe ) AM_WRITE( paletteram_io_w )
AM_RANGE( 0xff00, 0xffff ) AM_RAM // unk writes
ADDRESS_MAP_END
@ -54,14 +122,15 @@ static MACHINE_DRIVER_START( chsuper )
MDRV_CPU_ADD("maincpu", Z180, XTAL_12MHz / 2) /* HD64180RP8, 8 MHz? */
MDRV_CPU_PROGRAM_MAP(chsuper_prg_map,0)
MDRV_CPU_IO_MAP(chsuper_portmap,0)
MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)
/* video hardware */
MDRV_SCREEN_ADD("screen", RASTER)
MDRV_SCREEN_REFRESH_RATE(57)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(64*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0, 32*8-1)
MDRV_SCREEN_SIZE(64*8, 64*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0, 64*8-1)
MDRV_GFXDECODE(chsuper)
MDRV_PALETTE_LENGTH(2048)
@ -85,6 +154,8 @@ ROM_START( chsuper3 )
ROM_REGION( 0x100000, "gfx1", ROMREGION_DISPOSE )
ROM_LOAD( "a.bin", 0x00000, 0x80000, CRC(ace8b591) SHA1(e9ba5efebdc9b655056ed8b2621f062f50e0528f) )
ROM_LOAD( "b.bin", 0x80000, 0x80000, CRC(5f58c722) SHA1(d339ae27af010b058eae9084fba85fb2fbed3952) )
ROM_REGION( 0x10000, "vram", ROMREGION_ERASE00 )
ROM_END
ROM_START( chsuper2 )
@ -94,6 +165,8 @@ ROM_START( chsuper2 )
ROM_REGION( 0x100000, "gfx1", ROMREGION_DISPOSE )
ROM_LOAD( "a.bin", 0x00000, 0x80000, CRC(7caa8ebe) SHA1(440306a208ec8afd570b15f05b5dc542acc98510) )
ROM_LOAD( "b.bin", 0x80000, 0x80000, CRC(7bb463d7) SHA1(fb3842ba53e545fa47574c91df7281a9cb417395) )
ROM_REGION( 0x10000, "vram", ROMREGION_ERASE00 )
ROM_END