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author Angelo Salese <angelosa@users.noreply.github.com>2011-04-23 01:28:07 +0000
committer Angelo Salese <angelosa@users.noreply.github.com>2011-04-23 01:28:07 +0000
commit7b1a4a5c5e4943670cf0a4b731e2e1baae79194f (patch)
treed55bd99b7a27b37578f72977d815d1d3fa588121
parent142f507ba7f7899cdf30d53704e54156586aba90 (diff)
Upcoming work ...
-rw-r--r--src/mame/drivers/buster.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/src/mame/drivers/buster.c b/src/mame/drivers/buster.c
index 3f04bb9c263..a2618a6cec0 100644
--- a/src/mame/drivers/buster.c
+++ b/src/mame/drivers/buster.c
@@ -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)