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just because we can

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This commit is contained in:
David Haywood 2013-02-28 19:20:56 +00:00
parent 84155e0f8d
commit e9acf5848d
1 changed files with 25 additions and 8 deletions
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33
src/mame/drivers/gunpey.c
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@ -296,6 +296,8 @@ WRITE8_MEMBER(gunpey_state::gunpey_blitter_w)
UINT8 *blit_rom = memregion("blit_data")->base();
int x,y;
//printf("gunpey_blitter_w offset %01x data %02x\n", offset,data);
blit_ram[offset] = data;
if(offset == 0 && data == 2) // blitter trigger
@ -332,13 +334,15 @@ WRITE8_MEMBER(gunpey_state::gunpey_blitter_w)
}
}
// printf("%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x\n"
// ,blit_ram[0],blit_ram[1],blit_ram[2],blit_ram[3]
// ,blit_ram[4],blit_ram[5],blit_ram[6],blit_ram[7]
// ,blit_ram[8],blit_ram[9],blit_ram[0xa],blit_ram[0xb]
// ,blit_ram[0xc],blit_ram[0xd],blit_ram[0xe],blit_ram[0xf]);
/*
printf("%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x\n"
,blit_ram[0],blit_ram[1],blit_ram[2],blit_ram[3]
,blit_ram[4],blit_ram[5],blit_ram[6],blit_ram[7]
,blit_ram[8],blit_ram[9],blit_ram[0xa],blit_ram[0xb]
,blit_ram[0xc],blit_ram[0xd],blit_ram[0xe],blit_ram[0xf]);
*/
}
}
/***************************************************************************************/
@ -353,13 +357,15 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( io_map, AS_IO, 16, gunpey_state )
AM_RANGE(0x7f40, 0x7f45) AM_READ8(gunpey_inputs_r,0xffff)
// AM_RANGE(0x7f48, 0x7f48) AM_WRITE_LEGACY(output_w)
//AM_RANGE(0x7f48, 0x7f49) AM_RAM
AM_RANGE(0x7f80, 0x7f81) AM_DEVREADWRITE8_LEGACY("ymz", ymz280b_r, ymz280b_w, 0xffff)
AM_RANGE(0x7f88, 0x7f89) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0xff00)
AM_RANGE(0x7fc8, 0x7fc9) AM_READWRITE8(gunpey_status_r, gunpey_status_w, 0xffff )
AM_RANGE(0x7fd0, 0x7fdf) AM_WRITE8(gunpey_blitter_w, 0xffff )
//AM_RANGE(0x7FF0, 0x7FF1) AM_RAM
ADDRESS_MAP_END
@ -452,7 +458,7 @@ static INPUT_PORTS_START( gunpey )
PORT_START("SYSTEM") // IN4 - 7f44
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START1 ) PORT_IMPULSE(1) // TEST!!
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START1 ) // TEST!!
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_SERVICE1 )
@ -501,6 +507,16 @@ TIMER_DEVICE_CALLBACK_MEMBER(gunpey_state::gunpey_scanline)
gunpey_irq_check(0x54);
}
// this isn't a real decode as such, but the graphic data is all stored in pages 2048 bytes wide at varying BPP levelsl, some (BG data) compressed with what is likely a lossy scheme
// palette data is in here too, the blocks at the bottom right of all this?
static GFXLAYOUT_RAW( gunpey, 2048, 1, 2048*8, 2048*8 )
static GFXDECODE_START( gunpey )
GFXDECODE_ENTRY( "blit_data", 0, gunpey, 0x0000, 0x1 )
GFXDECODE_END
/***************************************************************************************/
static MACHINE_CONFIG_START( gunpey, gunpey_state )
@ -520,6 +536,7 @@ static MACHINE_CONFIG_START( gunpey, gunpey_state )
MCFG_SCREEN_UPDATE_DRIVER(gunpey_state, screen_update_gunpey)
MCFG_PALETTE_LENGTH(0x800)
MCFG_GFXDECODE(gunpey)
MCFG_SPEAKER_STANDARD_STEREO("lspeaker","rspeaker")