diff --git a/src/mame/drivers/spcforce.c b/src/mame/drivers/spcforce.c index a8ede52c455..69ad916cb7a 100644 --- a/src/mame/drivers/spcforce.c +++ b/src/mame/drivers/spcforce.c @@ -53,7 +53,11 @@ static WRITE8_HANDLER( spcforce_SN76496_latch_w ) static READ8_HANDLER( spcforce_SN76496_select_r ) { - return spcforce_SN76496_select; + if (~spcforce_SN76496_select & 0x40) return sn76496_ready_r(devtag_get_device(space->machine, "sn1"), 0 ); + if (~spcforce_SN76496_select & 0x20) return sn76496_ready_r(devtag_get_device(space->machine, "sn2"), 0 ); + if (~spcforce_SN76496_select & 0x10) return sn76496_ready_r(devtag_get_device(space->machine, "sn3"), 0 ); + + return 0; } static WRITE8_HANDLER( spcforce_SN76496_select_w )