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Added engine noise hook-up to Chequered Flag [Angelo Salese]

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This commit is contained in:
Angelo Salese 2009-04-27 18:03:36 +00:00
parent 63ad07061e
commit 54156976aa
1 changed files with 4 additions and 2 deletions
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6
src/mame/drivers/chqflag.c
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@ -5,6 +5,7 @@ Chequered Flag / Checkered Flag (GX717) (c) Konami 1988
Notes:
- Position counter doesn't behave correctly because of the K051733 protection.
- 007232 volume & panning control is almost certainly wrong.
- Sound sometimes goes in a loop / crashes, likely to be irq related.
2008-07
Dip locations and recommended settings verified with manual
@ -88,7 +89,7 @@ static WRITE8_HANDLER( chqflag_vreg_w )
else
memory_install_read8_handler(space, 0x2800, 0x2fff, 0, 0, K051316_1_r); /* 051316 */
/* Bits 3-7 probably control palette dimming in a similar way to TMNT2/Saunset Riders, */
/* Bits 3-7 probably control palette dimming in a similar way to TMNT2/Sunset Riders, */
/* however I don't have enough evidence to determine the exact behaviour. */
/* Bits 3 and 7 are set in night stages, where the background should get darker and */
/* the headlight (which have the shadow bit set) become highlights */
@ -140,6 +141,7 @@ static READ8_HANDLER( analog_read_r )
static WRITE8_HANDLER( chqflag_sh_irqtrigger_w )
{
soundlatch2_w(space, 0, data);
cputag_set_input_line(space->machine, "audiocpu", 0, HOLD_LINE);
}
@ -196,7 +198,7 @@ static ADDRESS_MAP_START( chqflag_sound_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0xb000, 0xb00d) AM_DEVREADWRITE("konami2", k007232_r, k007232_w) /* 007232 (chip 2) */
AM_RANGE(0xc000, 0xc001) AM_DEVREADWRITE("ym", ym2151_r, ym2151_w) /* YM2151 */
AM_RANGE(0xd000, 0xd000) AM_READ(soundlatch_r) /* soundlatch_r */
//AM_RANGE(0xe000, 0xe000) AM_READNOP /* ??? */
AM_RANGE(0xe000, 0xe000) AM_READ(soundlatch2_r) /* engine sound volume */
AM_RANGE(0xf000, 0xf000) AM_WRITENOP /* ??? */
ADDRESS_MAP_END