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-rw-r--r--src/mame/drivers/namcona1.cpp26
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 */