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preliminary video based for g4u5 by Haze (no whatsnew)

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This commit is contained in:
Miodrag Milanovic 2011-09-30 13:44:59 +00:00
parent 4c8e4be428
commit 9bcd6495ad
1 changed files with 86 additions and 3 deletions
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89
src/mame/drivers/gamtor.c
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@ -5,6 +5,9 @@
interrupt vectors get put in ram at 0x08000000
preliminary video based on g4u5 set ONLY
*/
@ -17,6 +20,11 @@ public:
gaminator_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
UINT32* m_vram;
UINT32* m_tmapram1;
UINT32* m_tmapram2;
};
static WRITE32_HANDLER( gamtor_unk_w )
@ -66,12 +74,73 @@ static READ32_HANDLER( gamtor_unk7_r )
return space->machine().rand();
}
#define GAMTOR_NUM_TILES 0x4000000 / 16
static const gfx_layout gamtor_layout =
{
8,16,
GAMTOR_NUM_TILES,
1,
{ 0 },
{ 0,1,2,3,4,5,6,7 },
{ 3*8, 2*8, 1*8, 0*8, 7*8, 6*8, 5*8, 4*8, 11*8, 10*8, 9*8, 8*8, 15*8, 14*8, 13*8, 12*8 },
16*8
};
static WRITE32_HANDLER( gaminator_vram_w )
{
gaminator_state *state = space->machine().driver_data<gaminator_state>();
COMBINE_DATA(state->m_vram + offset);
gfx_element_mark_dirty(space->machine().gfx[0], offset/16);
}
VIDEO_START( gamtor )
{
gaminator_state *state = machine.driver_data<gaminator_state>();
/* create the char set (gfx will then be updated dynamically from RAM) */
machine.gfx[0] = gfx_element_alloc(machine, &gamtor_layout, (UINT8 *)state->m_vram, 1, 0);
}
SCREEN_UPDATE(gamtor)
{
gaminator_state *state = screen->machine().driver_data<gaminator_state>();
const gfx_element *gfx = screen->machine().gfx[0];
int count = 0;
for (int y=0;y<32;y++)
{
for (int x=0;x<80;x++)
{
UINT32 chr = state->m_tmapram1[count];
int tile = (chr>>24)&0xff;
tile +=0x18DF1; // g4u5
drawgfx_opaque(bitmap,cliprect,gfx,tile,0,0,0,x*8,y*16);
count++;
}
}
return 0;
}
static ADDRESS_MAP_START( gaminator_map, AS_PROGRAM, 32 )
AM_RANGE(0x00000000, 0x07ffffff) AM_ROM
AM_RANGE(0x08000000, 0x0fffffff) AM_RAM // 0x083ea460 = some data
AM_RANGE(0x08000000, 0x0bffffff) AM_RAM_WRITE(gaminator_vram_w) AM_BASE_MEMBER(gaminator_state, m_vram) // 0x083ea460 = some data
AM_RANGE(0x1e040008, 0x1e04000b) AM_WRITE( gamtor_unk_w )
AM_RANGE(0x20000000, 0x2003ffff) AM_RAM
/* some kind of video control / blitter? */
AM_RANGE(0x400003c0, 0x400003c3) AM_WRITE( gamtor_unk3_w )
AM_RANGE(0x400003c4, 0x400003c7) AM_READWRITE( gamtor_unk4_r, gamtor_unk4_w )
@ -80,8 +149,8 @@ static ADDRESS_MAP_START( gaminator_map, AS_PROGRAM, 32 )
AM_RANGE(0x400003d4, 0x400003d7) AM_READWRITE( gamtor_unk2_r, gamtor_unk2_w )
AM_RANGE(0x400003d8, 0x400003fb) AM_READ( gamtor_unk7_r )
AM_RANGE(0x44000000, 0x44007fff) AM_RAM // puts strings here, looks almost like a tilemap, but where are the tiles?
AM_RANGE(0x440a0000, 0x440a1fff) AM_RAM // beetlem (like above, mirror?)
AM_RANGE(0x44000000, 0x44007fff) AM_RAM AM_BASE_MEMBER(gaminator_state, m_tmapram1) // puts strings here, looks almost like a tilemap, but where are the tiles?
AM_RANGE(0x440a0000, 0x440a1fff) AM_RAM AM_BASE_MEMBER(gaminator_state, m_tmapram2) // beetlem (like above, mirror?)
AM_RANGE(0xe0000000, 0xe00001ff) AM_RAM // nvram?
@ -95,6 +164,20 @@ static MACHINE_CONFIG_START( gaminator, gaminator_state )
MCFG_CPU_ADD("maincpu", MCF5206E, 40000000) /* definitely Coldfire, model / clock uncertain */
MCFG_CPU_PROGRAM_MAP(gaminator_map)
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0*8, 32*8-1)
MCFG_SCREEN_UPDATE(gamtor)
MCFG_PALETTE_LENGTH(0x200)
MCFG_VIDEO_START(gamtor)
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
/* unknown sound */
MACHINE_CONFIG_END