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This commit is contained in:
Angelo Salese 2011-04-23 01:28:07 +00:00
parent 142f507ba7
commit 7b1a4a5c5e
1 changed files with 18 additions and 2 deletions
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20
src/mame/drivers/buster.c
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@ -9,6 +9,7 @@ Video Fruit Machine
#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/ay8910.h"
#include "video/mc6845.h"
class buster_state : public driver_device
@ -53,8 +54,8 @@ static ADDRESS_MAP_START( mainmap, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0x3fff) AM_RAM AM_BASE_MEMBER(buster_state, m_rom)
AM_RANGE(0x4000, 0x47ff) AM_RAM
AM_RANGE(0x5000, 0x5fff) AM_RAM AM_BASE_MEMBER(buster_state, m_vram)
// AM_RANGE(0x6000, 0x6000) MC6845 address
// AM_RANGE(0x6001, 0x6001) MC6845 data
AM_RANGE(0x6000, 0x6000) AM_DEVWRITE("crtc", mc6845_address_w)
AM_RANGE(0x6001, 0x6001) AM_DEVREADWRITE("crtc", mc6845_register_r, mc6845_register_w)
AM_RANGE(0x7000, 0xafff) AM_ROM
ADDRESS_MAP_END
@ -78,6 +79,20 @@ static GFXDECODE_START( buster )
GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 16 )
GFXDECODE_END
static const mc6845_interface mc6845_intf =
{
"screen", /* screen we are acting on */
8, /* number of pixels per video memory address */
NULL, /* before pixel update callback */
NULL, /* row update callback */
NULL, /* after pixel update callback */
DEVCB_NULL, /* callback for display state changes */
DEVCB_NULL, /* callback for cursor state changes */
DEVCB_NULL, /* HSYNC callback */
DEVCB_NULL, /* VSYNC callback */
NULL /* update address callback */
};
static MACHINE_CONFIG_START( buster, buster_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80,8000000) /* ? MHz */
@ -92,6 +107,7 @@ static MACHINE_CONFIG_START( buster, buster_state )
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 16, 256-16-1)
MCFG_SCREEN_UPDATE(buster)
MCFG_MC6845_ADD("crtc", MC6845, XTAL_3_579545MHz/4, mc6845_intf) //unknown clock / type
MCFG_GFXDECODE(buster)
MCFG_PALETTE_LENGTH(0x100)