diff options
Diffstat (limited to 'src/mame/drivers/ax20.cpp')
-rw-r--r-- | src/mame/drivers/ax20.cpp | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/mame/drivers/ax20.cpp b/src/mame/drivers/ax20.cpp index 44036174bd2..b79cf78819d 100644 --- a/src/mame/drivers/ax20.cpp +++ b/src/mame/drivers/ax20.cpp @@ -80,21 +80,23 @@ uint32_t ax20_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, } -ADDRESS_MAP_START(ax20_state::ax20_map) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x00000,0x1ffff) AM_RAM - AM_RANGE(0x20000,0x3ffff) AM_RAM //optional RAM - AM_RANGE(0xf0400,0xf0fff) AM_RAM AM_SHARE("p_vram") - AM_RANGE(0xff800,0xfffff) AM_ROM AM_REGION("ipl", 0) -ADDRESS_MAP_END - -ADDRESS_MAP_START(ax20_state::ax20_io) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0xffc0, 0xffc0) AM_WRITE(tc_w) - AM_RANGE(0xffd0, 0xffd0) AM_WRITE(ctl_w) - AM_RANGE(0xffe0, 0xffe0) AM_READ(unk_r) - AM_RANGE(0xff80, 0xff81) AM_DEVICE("fdc", i8272a_device, map) -ADDRESS_MAP_END +void ax20_state::ax20_map(address_map &map) +{ + map.unmap_value_high(); + map(0x00000, 0x1ffff).ram(); + map(0x20000, 0x3ffff).ram(); //optional RAM + map(0xf0400, 0xf0fff).ram().share("p_vram"); + map(0xff800, 0xfffff).rom().region("ipl", 0); +} + +void ax20_state::ax20_io(address_map &map) +{ + map.unmap_value_high(); + map(0xffc0, 0xffc0).w(this, FUNC(ax20_state::tc_w)); + map(0xffd0, 0xffd0).w(this, FUNC(ax20_state::ctl_w)); + map(0xffe0, 0xffe0).r(this, FUNC(ax20_state::unk_r)); + map(0xff80, 0xff81).m(m_fdc, FUNC(i8272a_device::map)); +} /* Input ports */ static INPUT_PORTS_START( ax20 ) |