diff options
Diffstat (limited to 'src/mame/drivers/laserbas.cpp')
-rw-r--r-- | src/mame/drivers/laserbas.cpp | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/src/mame/drivers/laserbas.cpp b/src/mame/drivers/laserbas.cpp index f245a9a2df1..3e8c5ef0666 100644 --- a/src/mame/drivers/laserbas.cpp +++ b/src/mame/drivers/laserbas.cpp @@ -330,28 +330,30 @@ WRITE_LINE_MEMBER(laserbas_state::pit_out_5_w) write_pit_out(5,state); } -ADDRESS_MAP_START(laserbas_state::laserbas_memory) - AM_RANGE(0x0000, 0x3fff) AM_ROM - AM_RANGE(0x4000, 0xbfff) AM_READWRITE(vram_r, vram_w) - AM_RANGE(0xc000, 0xf7ff) AM_ROM AM_WRITENOP - AM_RANGE(0xf800, 0xfbff) AM_READ(z1_r) AM_WRITENOP /* protection device */ - AM_RANGE(0xfc00, 0xffff) AM_RAM -ADDRESS_MAP_END - -ADDRESS_MAP_START(laserbas_state::laserbas_io) - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x00, 0x00) AM_DEVWRITE("crtc", mc6845_device, address_w) - AM_RANGE(0x01, 0x01) AM_DEVWRITE("crtc", mc6845_device, register_w) - AM_RANGE(0x10, 0x11) AM_WRITE(videoctrl_w) - AM_RANGE(0x20, 0x20) AM_READ_PORT("DSW") - AM_RANGE(0x21, 0x21) AM_READ_PORT("INPUTS") - AM_RANGE(0x22, 0x22) AM_READ(track_hi_r) - AM_RANGE(0x23, 0x23) AM_READ(track_lo_r) - AM_RANGE(0x20, 0x23) AM_WRITE(out_w) - AM_RANGE(0x40, 0x43) AM_DEVREADWRITE("pit0", pit8253_device, read, write) - AM_RANGE(0x44, 0x47) AM_DEVREADWRITE("pit1", pit8253_device, read, write) - AM_RANGE(0x80, 0x9f) AM_RAM_DEVWRITE("palette", palette_device, write8) AM_SHARE("palette") -ADDRESS_MAP_END +void laserbas_state::laserbas_memory(address_map &map) +{ + map(0x0000, 0x3fff).rom(); + map(0x4000, 0xbfff).rw(this, FUNC(laserbas_state::vram_r), FUNC(laserbas_state::vram_w)); + map(0xc000, 0xf7ff).rom().nopw(); + map(0xf800, 0xfbff).r(this, FUNC(laserbas_state::z1_r)).nopw(); /* protection device */ + map(0xfc00, 0xffff).ram(); +} + +void laserbas_state::laserbas_io(address_map &map) +{ + map.global_mask(0xff); + map(0x00, 0x00).w("crtc", FUNC(mc6845_device::address_w)); + map(0x01, 0x01).w("crtc", FUNC(mc6845_device::register_w)); + map(0x10, 0x11).w(this, FUNC(laserbas_state::videoctrl_w)); + map(0x20, 0x20).portr("DSW"); + map(0x21, 0x21).portr("INPUTS"); + map(0x22, 0x22).r(this, FUNC(laserbas_state::track_hi_r)); + map(0x23, 0x23).r(this, FUNC(laserbas_state::track_lo_r)); + map(0x20, 0x23).w(this, FUNC(laserbas_state::out_w)); + map(0x40, 0x43).rw("pit0", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); + map(0x44, 0x47).rw("pit1", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); + map(0x80, 0x9f).ram().w(m_palette, FUNC(palette_device::write8)).share("palette"); +} static INPUT_PORTS_START( laserbas ) PORT_START("DSW") // $20 |