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Diffstat (limited to 'src/mame/drivers/flkatck.cpp')
-rw-r--r--src/mame/drivers/flkatck.cpp9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/mame/drivers/flkatck.cpp b/src/mame/drivers/flkatck.cpp
index 63e527f7241..648315c417a 100644
--- a/src/mame/drivers/flkatck.cpp
+++ b/src/mame/drivers/flkatck.cpp
@@ -106,10 +106,11 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( flkatck_sound_map, AS_PROGRAM, 8, flkatck_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM /* ROM */
AM_RANGE(0x8000, 0x87ff) AM_RAM /* RAM */
- AM_RANGE(0x9000, 0x9000) AM_READWRITE(multiply_r, multiply_w) /* ??? */
-// AM_RANGE(0x9001, 0x9001) AM_RAM /* ??? */
- AM_RANGE(0x9004, 0x9004) AM_READNOP /* ??? */
- AM_RANGE(0x9006, 0x9006) AM_WRITENOP /* ??? */
+ AM_RANGE(0x9000, 0x9000) AM_READ(multiply_r) // 007452: Protection (see wecleman, but unused here?)
+ AM_RANGE(0x9001, 0x9001) AM_READNOP // 007452: ?
+ AM_RANGE(0x9000, 0x9001) AM_WRITE(multiply_w) // 007452: Protection (see wecleman, but unused here?)
+ AM_RANGE(0x9004, 0x9004) AM_READNOP // 007452: ?
+ AM_RANGE(0x9006, 0x9006) AM_WRITENOP // 007452: ?
AM_RANGE(0xa000, 0xa000) AM_DEVREAD("soundlatch", generic_latch_8_device, read)
AM_RANGE(0xb000, 0xb00d) AM_DEVREADWRITE("k007232", k007232_device, read, write) /* 007232 registers */
AM_RANGE(0xc000, 0xc001) AM_DEVREADWRITE("ymsnd", ym2151_device, read, write) /* YM2151 */