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taitosj.cpp: Add XTALs for various clocks based on schematics. Documented and implemented AY-3-8910 outputs being tied directly together for 3 of the 4 AY-3-8910 chips. [Lord Nightmare[

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Lord-Nightmare 2016-09-17 22:18:07 -04:00
parent 9dbf0946c8
commit f12ba601b2
2 changed files with 12 additions and 9 deletions
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2
src/emu/drivers/xtal.h
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@ -81,7 +81,7 @@ enum
XTAL_5_7143MHz = 5714300, /* Cidelsa Destroyer */
XTAL_5_911MHz = 5911000, /* Philips Videopac Plus G7400 */
XTAL_5_9904MHz = 5990400, /* Luxor ABC 800 keyboard (Keytronic custom part #48-300-008 is equivalent) */
XTAL_6MHz = 6000000, /* American Poker II */
XTAL_6MHz = 6000000, /* American Poker II, Taito SJ System */
XTAL_6_144MHz = 6144000, /* Used on Alpha Denshi early 80's games sound board, Casio FP-200 and Namco System 16 */
XTAL_6_5MHz = 6500000, /* Jupiter Ace */
XTAL_6_9MHz = 6900000, /* BBN BitGraph CPU */

19
src/mame/drivers/taitosj.cpp
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@ -1749,17 +1749,17 @@ WRITE8_MEMBER(taitosj_state::dac_vol_w)
static MACHINE_CONFIG_START( nomcu, taitosj_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80,8000000/2) /* 4 MHz */
MCFG_CPU_ADD("maincpu",Z80,XTAL_8MHz/2) /* 8 MHz / 2, on CPU board */
MCFG_CPU_PROGRAM_MAP(taitosj_main_nomcu_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", taitosj_state, irq0_line_hold)
MCFG_CPU_ADD("audiocpu", Z80,6000000/2) /* 3 MHz */
MCFG_CPU_ADD("audiocpu", Z80,XTAL_6MHz/2) /* 6 MHz / 2, on GAME board */
MCFG_CPU_PROGRAM_MAP(taitosj_audio_map)
/* interrupts: */
/* - no interrupts synced with vblank */
/* - NMI triggered by the main CPU */
/* - periodic IRQ, with frequency 6000000/(4*16*16*10*16) = 36.621 Hz, */
MCFG_CPU_PERIODIC_INT_DRIVER(taitosj_state, irq0_line_hold, (double)6000000/(4*16*16*10*16))
MCFG_CPU_PERIODIC_INT_DRIVER(taitosj_state, irq0_line_hold, (double)XTAL_6MHz/(4*16*16*10*16))
/* video hardware */
@ -1780,21 +1780,24 @@ static MACHINE_CONFIG_START( nomcu, taitosj_state )
MCFG_GENERIC_LATCH_8_ADD("soundlatch")
MCFG_SOUND_ADD("ay1", AY8910, 6000000/4)
MCFG_SOUND_ADD("ay1", AY8910, XTAL_6MHz/4) // 6mhz/4 on GAME board, AY-3-8910 @ IC53 (this is the only AY which uses proper mixing resistors, the 3 below have outputs tied together)
MCFG_AY8910_PORT_A_READ_CB(IOPORT("DSW2"))
MCFG_AY8910_PORT_B_READ_CB(IOPORT("DSW3"))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
MCFG_SOUND_ADD("ay2", AY8910, 6000000/4)
MCFG_SOUND_ADD("ay2", AY8910, XTAL_6MHz/4) // 6mhz/4 on GAME board, AY-3-8910 @ IC51
MCFG_AY8910_OUTPUT_TYPE(AY8910_SINGLE_OUTPUT)
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(taitosj_state, dac_out_w)) /* port Awrite */
MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(taitosj_state, dac_vol_w)) /* port Bwrite */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
MCFG_SOUND_ADD("ay3", AY8910, 6000000/4)
MCFG_SOUND_ADD("ay3", AY8910, XTAL_6MHz/4) // 6mhz/4 on GAME board, AY-3-8910 @ IC49
MCFG_AY8910_OUTPUT_TYPE(AY8910_SINGLE_OUTPUT)
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(taitosj_state, input_port_4_f0_w))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
MCFG_SOUND_ADD("ay4", AY8910, 6000000/4)
MCFG_SOUND_ADD("ay4", AY8910, XTAL_6MHz/4) // 6mhz/4 on GAME board, AY-3-8910 @ IC50
MCFG_AY8910_OUTPUT_TYPE(AY8910_SINGLE_OUTPUT)
MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(taitosj_state, taitosj_sndnmi_msk_w)) /* port Bwrite */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
@ -1810,7 +1813,7 @@ static MACHINE_CONFIG_DERIVED( mcu, nomcu )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(taitosj_main_mcu_map)
MCFG_CPU_ADD("mcu", M68705,3000000) /* xtal is 3MHz, divided by 4 internally */
MCFG_CPU_ADD("mcu", M68705,XTAL_3MHz) /* xtal is 3MHz, divided by 4 internally */
MCFG_CPU_PROGRAM_MAP(taitosj_mcu_map)
MCFG_QUANTUM_TIME(attotime::from_hz(6000))