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CPU interleave to fix garbled graphics (MT05276). (nw)

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This commit is contained in:
Ivan Vangelista 2014-03-01 13:21:40 +00:00
parent 61c574bf01
commit 517fb96cbd
1 changed files with 14 additions and 21 deletions
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35
src/mame/drivers/witch.c
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@ -236,23 +236,29 @@ class witch_state : public driver_device
public:
witch_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "sub"),
m_gfxdecode(*this, "gfxdecode"),
m_gfx0_vram(*this, "gfx0_vram"),
m_gfx0_cram(*this, "gfx0_cram"),
m_gfx1_vram(*this, "gfx1_vram"),
m_gfx1_cram(*this, "gfx1_cram"),
m_sprite_ram(*this, "sprite_ram"),
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "sub"),
m_gfxdecode(*this, "gfxdecode") { }
m_sprite_ram(*this, "sprite_ram") { }
tilemap_t *m_gfx0a_tilemap;
tilemap_t *m_gfx0b_tilemap;
tilemap_t *m_gfx1_tilemap;
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<gfxdecode_device> m_gfxdecode;
required_shared_ptr<UINT8> m_gfx0_vram;
required_shared_ptr<UINT8> m_gfx0_cram;
required_shared_ptr<UINT8> m_gfx1_vram;
required_shared_ptr<UINT8> m_gfx1_cram;
required_shared_ptr<UINT8> m_sprite_ram;
int m_scrollx;
int m_scrolly;
UINT8 m_reg_a002;
@ -277,12 +283,7 @@ public:
TILE_GET_INFO_MEMBER(get_gfx1_tile_info);
virtual void video_start();
UINT32 screen_update_witch(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(witch_main_interrupt);
INTERRUPT_GEN_MEMBER(witch_sub_interrupt);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<gfxdecode_device> m_gfxdecode;
};
@ -823,26 +824,18 @@ UINT32 witch_state::screen_update_witch(screen_device &screen, bitmap_ind16 &bit
return 0;
}
INTERRUPT_GEN_MEMBER(witch_state::witch_main_interrupt)
{
device.execute().set_input_line(0,ASSERT_LINE);
}
INTERRUPT_GEN_MEMBER(witch_state::witch_sub_interrupt)
{
device.execute().set_input_line(0,ASSERT_LINE);
}
static MACHINE_CONFIG_START( witch, witch_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, CPU_CLOCK) /* 3 MHz */
MCFG_CPU_PROGRAM_MAP(map_main)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, witch_main_interrupt)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, irq0_line_assert)
/* 2nd z80 */
MCFG_CPU_ADD("sub", Z80, CPU_CLOCK) /* 3 MHz */
MCFG_CPU_PROGRAM_MAP(map_sub)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, witch_sub_interrupt)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, irq0_line_assert)
MCFG_QUANTUM_TIME(attotime::from_hz(6000))
MCFG_NVRAM_ADD_0FILL("nvram")