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Diffstat (limited to 'src/mame/drivers/omegrace.c')
-rw-r--r--src/mame/drivers/omegrace.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/mame/drivers/omegrace.c b/src/mame/drivers/omegrace.c
index 1714d2ada07..11ec6f102a8 100644
--- a/src/mame/drivers/omegrace.c
+++ b/src/mame/drivers/omegrace.c
@@ -368,10 +368,9 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_port, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE(0x00, 0x00) AM_READWRITE(soundlatch_r, ay8910_control_port_0_w)
- AM_RANGE(0x01, 0x01) AM_WRITE(ay8910_write_port_0_w)
- AM_RANGE(0x02, 0x02) AM_WRITE(ay8910_control_port_1_w)
- AM_RANGE(0x03, 0x03) AM_WRITE(ay8910_write_port_1_w)
+ AM_RANGE(0x00, 0x00) AM_READ(soundlatch_r) /* likely ay8910 input port, not direct */
+ AM_RANGE(0x00, 0x01) AM_DEVWRITE(SOUND, "ay1", ay8910_address_data_w)
+ AM_RANGE(0x02, 0x03) AM_DEVWRITE(SOUND, "ay2", ay8910_address_data_w)
ADDRESS_MAP_END