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microtan: Clock derived from XTAL value (nw)

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This commit is contained in:
AJR 2017-12-07 20:36:44 -05:00
parent 86aad351a9
commit a90412feaf
1 changed files with 3 additions and 3 deletions
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6
src/mame/drivers/microtan.cpp
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@ -211,7 +211,7 @@ GFXDECODE_END
static MACHINE_CONFIG_START( microtan )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502, 750000) // 750 kHz
MCFG_CPU_ADD("maincpu", M6502, XTAL_6MHz / 8) // 750 kHz
MCFG_CPU_PROGRAM_MAP(microtan_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", microtan_state, microtan_interrupt)
@ -250,7 +250,7 @@ static MACHINE_CONFIG_START( microtan )
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
/* via */
MCFG_DEVICE_ADD("via6522_0", VIA6522, 0)
MCFG_DEVICE_ADD("via6522_0", VIA6522, XTAL_6MHz / 8)
MCFG_VIA6522_READPA_HANDLER(READ8(microtan_state, via_0_in_a))
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(microtan_state, via_0_out_a))
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(microtan_state, via_0_out_b))
@ -258,7 +258,7 @@ static MACHINE_CONFIG_START( microtan )
MCFG_VIA6522_CB2_HANDLER(WRITELINE(microtan_state, via_0_out_cb2))
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(microtan_state, via_0_irq))
MCFG_DEVICE_ADD("via6522_1", VIA6522, 0)
MCFG_DEVICE_ADD("via6522_1", VIA6522, XTAL_6MHz / 8)
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(microtan_state, via_1_out_a))
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(microtan_state, via_1_out_b))
MCFG_VIA6522_CA2_HANDLER(WRITELINE(microtan_state, via_1_out_ca2))