diff options
Diffstat (limited to 'src/mame/drivers/n8080.cpp')
-rw-r--r-- | src/mame/drivers/n8080.cpp | 57 |
1 files changed, 30 insertions, 27 deletions
diff --git a/src/mame/drivers/n8080.cpp b/src/mame/drivers/n8080.cpp index f076b9b885d..4f5a540b3c6 100644 --- a/src/mame/drivers/n8080.cpp +++ b/src/mame/drivers/n8080.cpp @@ -34,33 +34,36 @@ READ8_MEMBER(n8080_state::n8080_shift_r) return m_shift_data >> (8 - m_shift_bits); } -ADDRESS_MAP_START(n8080_state::main_cpu_map) - ADDRESS_MAP_GLOBAL_MASK(0x7fff) - AM_RANGE(0x0000, 0x3fff) AM_ROM - AM_RANGE(0x4000, 0x7fff) AM_RAM AM_SHARE("videoram") -ADDRESS_MAP_END - - -ADDRESS_MAP_START(n8080_state::helifire_main_cpu_map) - AM_RANGE(0x0000, 0x3fff) AM_ROM - AM_RANGE(0x4000, 0x7fff) AM_RAM AM_SHARE("videoram") - AM_RANGE(0xc000, 0xdfff) AM_RAM AM_SHARE("colorram") -ADDRESS_MAP_END - -ADDRESS_MAP_START(n8080_state::main_io_map) - ADDRESS_MAP_GLOBAL_MASK(0x7) - AM_RANGE(0x00, 0x00) AM_READ_PORT("IN0") - AM_RANGE(0x01, 0x01) AM_READ_PORT("IN1") - AM_RANGE(0x02, 0x02) AM_READ_PORT("IN2") - AM_RANGE(0x03, 0x03) AM_READ(n8080_shift_r) - AM_RANGE(0x04, 0x04) AM_READ_PORT("IN3") - - AM_RANGE(0x02, 0x02) AM_WRITE(n8080_shift_bits_w) - AM_RANGE(0x03, 0x03) AM_WRITE(n8080_shift_data_w) - AM_RANGE(0x04, 0x04) AM_WRITE(n8080_sound_1_w) - AM_RANGE(0x05, 0x05) AM_WRITE(n8080_sound_2_w) - AM_RANGE(0x06, 0x06) AM_WRITE(n8080_video_control_w) -ADDRESS_MAP_END +void n8080_state::main_cpu_map(address_map &map) +{ + map.global_mask(0x7fff); + map(0x0000, 0x3fff).rom(); + map(0x4000, 0x7fff).ram().share("videoram"); +} + + +void n8080_state::helifire_main_cpu_map(address_map &map) +{ + map(0x0000, 0x3fff).rom(); + map(0x4000, 0x7fff).ram().share("videoram"); + map(0xc000, 0xdfff).ram().share("colorram"); +} + +void n8080_state::main_io_map(address_map &map) +{ + map.global_mask(0x7); + map(0x00, 0x00).portr("IN0"); + map(0x01, 0x01).portr("IN1"); + map(0x02, 0x02).portr("IN2"); + map(0x03, 0x03).r(this, FUNC(n8080_state::n8080_shift_r)); + map(0x04, 0x04).portr("IN3"); + + map(0x02, 0x02).w(this, FUNC(n8080_state::n8080_shift_bits_w)); + map(0x03, 0x03).w(this, FUNC(n8080_state::n8080_shift_data_w)); + map(0x04, 0x04).w(this, FUNC(n8080_state::n8080_sound_1_w)); + map(0x05, 0x05).w(this, FUNC(n8080_state::n8080_sound_2_w)); + map(0x06, 0x06).w(this, FUNC(n8080_state::n8080_video_control_w)); +} /* Input ports */ |