Irem m63 - adjusted AY frequencies to proper 1.5 MHz [Stefan Lindberg]

This commit is contained in:
Tomasz Slanina 2008-07-27 22:50:18 +00:00
parent 251b59b069
commit 92bcd925f0

View File

@ -95,8 +95,8 @@ Notes:
TS 2008.06.14:
- Addedd sound emulation - atomboy and fghtbskt req different interrupt (T1)
timing than wilytowr, otherwise music/fx tempo is too fast. Maybe both
tmings are wrong - must be verified on real pcb.
timing than wilytowr, otherwise music/fx tempo is too fast.
Music tempo and pitch verified on real pcb.
- Extra space in atomboy 2764 eproms is filled with garbage z80 code
(taken from one of code roms, but from different offset)
- Fghtbskt has one AY, but every frame writes 0 to 2nd AY regs - probably
@ -654,11 +654,11 @@ static MACHINE_DRIVER_START( m63 )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono") /* ????? */
MDRV_SOUND_ADD("ay1", AY8910, 3579545/4)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.20)
MDRV_SOUND_ADD("ay1", AY8910, XTAL_12MHz/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
MDRV_SOUND_ADD("ay2", AY8910, 3579545/4) /* ????? */
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.20)
MDRV_SOUND_ADD("ay2", AY8910, XTAL_12MHz/8) /* ????? */
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
MACHINE_DRIVER_END
static MACHINE_DRIVER_START( atomboy )
@ -698,7 +698,7 @@ static MACHINE_DRIVER_START( fghtbskt )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("ay", AY8910, 12000000/4/2)
MDRV_SOUND_ADD("ay", AY8910, XTAL_12MHz/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MDRV_SOUND_ADD("samples", SAMPLES, 0)