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Diffstat (limited to 'src/mame/drivers/vc4000.cpp')
-rw-r--r--src/mame/drivers/vc4000.cpp6
1 files changed, 1 insertions, 5 deletions
diff --git a/src/mame/drivers/vc4000.cpp b/src/mame/drivers/vc4000.cpp
index bbdf29ea99c..d4004c5639b 100644
--- a/src/mame/drivers/vc4000.cpp
+++ b/src/mame/drivers/vc4000.cpp
@@ -192,10 +192,6 @@ static ADDRESS_MAP_START( vc4000_mem, AS_PROGRAM, 8, vc4000_state )
AM_RANGE(0x1700, 0x17ff) AM_READWRITE(vc4000_video_r, vc4000_video_w) AM_MIRROR(0x0800)
ADDRESS_MAP_END
-static ADDRESS_MAP_START( vc4000_io, AS_IO, 8, vc4000_state )
- AM_RANGE( S2650_SENSE_PORT,S2650_SENSE_PORT) AM_READ(vc4000_vsync_r)
-ADDRESS_MAP_END
-
static ADDRESS_MAP_START(elektor_mem, AS_PROGRAM, 8, vc4000_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0x1fff)
@@ -532,7 +528,7 @@ static MACHINE_CONFIG_START( vc4000 )
// MCFG_CPU_ADD("maincpu", S2650, 865000) /* 3550000/4, 3580000/3, 4430000/3 */
MCFG_CPU_ADD("maincpu", S2650, 3546875/4)
MCFG_CPU_PROGRAM_MAP(vc4000_mem)
- MCFG_CPU_IO_MAP(vc4000_io)
+ MCFG_S2650_SENSE_INPUT(READLINE(vc4000_state, vc4000_vsync_r))
MCFG_CPU_PERIODIC_INT_DRIVER(vc4000_state, vc4000_video_line, 312*53) // GOLF needs this exact value
/* video hardware */