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Added proper return behaviour to the mechanical meter simulator.

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Added proper meter detection to Maygay M1, attract modes now run for many games.
This commit is contained in:
James Wallace 2013-09-08 19:10:08 +00:00
parent aaf3b4cf3b
commit 2e6edd4498
3 changed files with 19 additions and 10 deletions
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24
src/mame/drivers/maygay1b.c
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@ -68,6 +68,8 @@
3x trimmer 3x trimmer
TODO: Convert to stock i8279 implementation, as currently inouts aren't read.
Fix meter reading (possibly related to above)
******************************************************************************************/ ******************************************************************************************/
#include "emu.h" #include "emu.h"
#include "includes/maygay1b.h" #include "includes/maygay1b.h"
@ -737,9 +739,14 @@ static UINT8 m1_duart_r (device_t *device)
WRITE8_MEMBER(maygay1b_state::m1_meter_w) WRITE8_MEMBER(maygay1b_state::m1_meter_w)
{ {
int i; int i;
for (i=0; i<8; i++) for (i=0; i<8; i++)
if ( data & (1 << i) ) MechMtr_update(i, data & (1 << i) ); {
if ( data & (1 << i) )
{
MechMtr_update(i, data & (1 << i) );
m_meter = data;
}
}
} }
WRITE8_MEMBER(maygay1b_state::m1_latch_w) WRITE8_MEMBER(maygay1b_state::m1_latch_w)
@ -795,8 +802,11 @@ READ8_MEMBER(maygay1b_state::latch_st_lo)
READ8_MEMBER(maygay1b_state::m1_meter_r) READ8_MEMBER(maygay1b_state::m1_meter_r)
{ {
ay8910_device *ay8910 = machine().device<ay8910_device>("aysnd"); //ay8910_device *ay8910 = machine().device<ay8910_device>("aysnd");
return ~ay8910->data_r(space, offset); //return ay8910->data_r(space, offset);
//TODO: Game should read the meter state through Port A of the AY chip, but our timings aren't good enough (?)
return m_meter;
} }
static ADDRESS_MAP_START( m1_memmap, AS_PROGRAM, 8, maygay1b_state ) static ADDRESS_MAP_START( m1_memmap, AS_PROGRAM, 8, maygay1b_state )
@ -821,14 +831,12 @@ static ADDRESS_MAP_START( m1_memmap, AS_PROGRAM, 8, maygay1b_state )
AM_RANGE(0x20C0, 0x20C7) AM_WRITE(m1_latch_w) AM_RANGE(0x20C0, 0x20C7) AM_WRITE(m1_latch_w)
AM_RANGE(0x2400, 0x2401) AM_DEVWRITE("ymsnd", ym2413_device, write) // 2149F?? AM_RANGE(0x2400, 0x2401) AM_DEVWRITE("ymsnd", ym2413_device, write)
AM_RANGE(0x2404, 0x2405) AM_READ(latch_st_lo) AM_RANGE(0x2404, 0x2405) AM_READ(latch_st_lo)
AM_RANGE(0x2406, 0x2407) AM_READ(latch_st_hi) AM_RANGE(0x2406, 0x2407) AM_READ(latch_st_hi)
AM_RANGE(0x2412, 0x2412) AM_READ(m1_firq_trg_r) // firq, sample playback? AM_RANGE(0x2412, 0x2412) AM_READ(m1_firq_trg_r) // firq, sample playback?
AM_RANGE(0x2420, 0x2421) AM_WRITE(latch_ch2_w ) // oki AM_RANGE(0x2420, 0x2421) AM_WRITE(latch_ch2_w ) // oki
AM_RANGE(0x2800, 0xffff) AM_ROM AM_RANGE(0x2800, 0xffff) AM_ROM
@ -865,7 +873,7 @@ MACHINE_CONFIG_START( maygay_m1, maygay1b_state )
MCFG_PIA6821_ADD("pia", m1_pia_intf) MCFG_PIA6821_ADD("pia", m1_pia_intf)
MCFG_MSC1937_ADD("vfd",0,RIGHT_TO_LEFT) MCFG_MSC1937_ADD("vfd",0,RIGHT_TO_LEFT)
MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd",AY8913, M1_MASTER_CLOCK) MCFG_SOUND_ADD("aysnd",YM2149, M1_MASTER_CLOCK)
MCFG_SOUND_CONFIG(ay8910_config) MCFG_SOUND_CONFIG(ay8910_config)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)

1
src/mame/includes/maygay1b.h
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@ -55,6 +55,7 @@ public:
int m_WDOG; int m_WDOG;
int m_SRSEL; int m_SRSEL;
int m_NMIENABLE; int m_NMIENABLE;
int m_meter;
TIMER_DEVICE_CALLBACK_MEMBER( maygay1b_nmitimer_callback ); TIMER_DEVICE_CALLBACK_MEMBER( maygay1b_nmitimer_callback );
UINT8 m_Lamps[256]; UINT8 m_Lamps[256];
int m_optic_pattern; int m_optic_pattern;

2
src/mame/machine/meters.c
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@ -113,5 +113,5 @@ int MechMtr_update(int id, int state)
} }
} }
return res; return meter_info[id].on;
} }