diff options
Diffstat (limited to 'src/mame/drivers/namcona1.cpp')
-rw-r--r-- | src/mame/drivers/namcona1.cpp | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/src/mame/drivers/namcona1.cpp b/src/mame/drivers/namcona1.cpp index f8553076ba8..32086e989ee 100644 --- a/src/mame/drivers/namcona1.cpp +++ b/src/mame/drivers/namcona1.cpp @@ -622,30 +622,12 @@ WRITE16_MEMBER(namcona1_state::na1mcu_shared_w) COMBINE_DATA(&m_workram[offset]); } -READ16_MEMBER(namcona1_state::snd_r) -{ - /* can't use DEVREADWRITE8 for this because it is opposite endianness to the CPU for some reason */ - return m_c140->c140_r(space,offset*2+1) | m_c140->c140_r(space,offset*2)<<8; -} - -WRITE16_MEMBER(namcona1_state::snd_w) -{ - /* can't use DEVREADWRITE8 for this because it is opposite endianness to the CPU for some reason */ - if (ACCESSING_BITS_0_7) - { - m_c140->c140_w(space,(offset*2)+1, data); - } - - if (ACCESSING_BITS_8_15) - { - m_c140->c140_w(space,(offset*2), data>>8); - } -} - void namcona1_state::namcona1_mcu_map(address_map &map) { map(0x000800, 0x000fff).rw(FUNC(namcona1_state::mcu_mailbox_r), FUNC(namcona1_state::mcu_mailbox_w_mcu)); // "Mailslot" communications ports - map(0x001000, 0x001fff).rw(FUNC(namcona1_state::snd_r), FUNC(namcona1_state::snd_w)); // C140-alike sound chip + map(0x001000, 0x001fff).lrw8("c219_rw", + [this](offs_t offset) { return m_c140->c140_r(offset ^ 1)/* need ^ 1 because endian issue */; }, + [this](offs_t offset, u8 data) { m_c140->c140_w(offset ^ 1, data); }); // C140-alike sound chip map(0x002000, 0x002fff).rw(FUNC(namcona1_state::na1mcu_shared_r), FUNC(namcona1_state::na1mcu_shared_w)); // mirror of first page of shared work RAM map(0x003000, 0x00afff).ram(); // there is a 32k RAM chip according to CGFM map(0x200000, 0x27ffff).rw(FUNC(namcona1_state::na1mcu_shared_r), FUNC(namcona1_state::na1mcu_shared_w)); // shared work RAM @@ -1043,7 +1025,7 @@ void xday2_namcona2_state::xday2(machine_config &config) EEPROM_2864(config, "eeprom"); // TODO: unknown sub type - MSM6242(config,"rtc", XTAL(32'768)); + MSM6242(config, "rtc", XTAL(32'768)); } /* NA-1 Hardware */ |