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snk6502.c: Adjusted Nibbler board clock rate to use actual known master clock and a logical divisor. [Tafoid]

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Comment: Still needs 100% verification from actual PCB but this fixes an issue with speed of game and sound effects not matching video output (specifically when snake is first drawn in 3 parts - the sound effect now match the drawing).
This commit is contained in:
Scott Stone 2013-11-19 22:33:30 +00:00
parent c48f01fd70
commit c4058ec7e2
1 changed files with 2 additions and 2 deletions
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src/mame/drivers/snk6502.c
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@ -887,8 +887,8 @@ MACHINE_CONFIG_END
static MACHINE_CONFIG_START( vanguard, snk6502_state )
// basic machine hardware
//MCFG_CPU_ADD("maincpu", M6502, MASTER_CLOCK / 8) // 1.4 MHz
MCFG_CPU_ADD("maincpu", M6502, 930000) // adjusted
MCFG_CPU_ADD("maincpu", M6502, MASTER_CLOCK / 16) // adjusted using common divisor
MCFG_CPU_PROGRAM_MAP(vanguard_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", snk6502_state, snk6502_interrupt)