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Diffstat (limited to 'src/mame/drivers/twincobr.c')
-rw-r--r--src/mame/drivers/twincobr.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/twincobr.c b/src/mame/drivers/twincobr.c
index 84fecda3fa4..3a2e5bb85c6 100644
--- a/src/mame/drivers/twincobr.c
+++ b/src/mame/drivers/twincobr.c
@@ -390,7 +390,7 @@ static INPUT_PORTS_START( twincobr )
PORT_START("VBLANK")
PORT_BIT( 0x7f, IP_ACTIVE_HIGH, IPT_UNUSED )
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
INPUT_PORTS_END
/* verified from M68000 and Z80 code */
@@ -425,7 +425,7 @@ static INPUT_PORTS_START( gulfwar2 )
PORT_MODIFY("VBLANK")
PORT_BIT( 0x7f, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("screen")
INPUT_PORTS_END
@@ -471,7 +471,7 @@ static INPUT_PORTS_START( fshark )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
INPUT_PORTS_END
/* verified from M68000 code */