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author Angelo Salese <angelosa@users.noreply.github.com>2011-04-28 16:57:39 +0000
committer Angelo Salese <angelosa@users.noreply.github.com>2011-04-28 16:57:39 +0000
commit35907ef082037bc4626f60abaa4558122fa8ce2e (patch)
tree114d4b5f96d2b1f0da2079fa4adeb37cec157262 /src
parent3c81107df269acd167703fb8aee5ed62ac7f3ea0 (diff)
AM_NOP for silly layer clearing
Diffstat (limited to 'src')
-rw-r--r--src/mame/drivers/tumbleb.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mame/drivers/tumbleb.c b/src/mame/drivers/tumbleb.c
index a683cd4b92c..29655a0c2b5 100644
--- a/src/mame/drivers/tumbleb.c
+++ b/src/mame/drivers/tumbleb.c
@@ -721,6 +721,7 @@ static ADDRESS_MAP_START( htchctch_main_map, AS_PROGRAM, 16 )
AM_RANGE(0x300000, 0x30000f) AM_WRITE(tumblepb_control_0_w)
AM_RANGE(0x320000, 0x321fff) AM_WRITE(tumblepb_pf1_data_w) AM_BASE_MEMBER(tumbleb_state, m_pf1_data)
AM_RANGE(0x322000, 0x322fff) AM_WRITE(tumblepb_pf2_data_w) AM_BASE_MEMBER(tumbleb_state, m_pf2_data)
+ AM_RANGE(0x323000, 0x331fff) AM_NOP // metal saver writes there when clearing the above tilemaps, flaw in the program routine
AM_RANGE(0x341000, 0x342fff) AM_RAM // Extra ram?
ADDRESS_MAP_END