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game promoted to working

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-------------
Golden Arrow (Standard G8-03) [hap, dox, DHS]
This commit is contained in:
Michaël Banaan Ananas 2012-04-30 19:54:40 +00:00
parent 8c8b37b75a
commit 0b53b62317
1 changed files with 24 additions and 6 deletions
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30
src/mame/drivers/meyc8088.c
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@ -10,9 +10,15 @@
also thanks to Darrell Hal Smith, Kevin Mullins
To initialize battery RAM, go into Meter Read mode (F1 -> 9),
and then press the Meter Reset button.
If a game is not turned off properly, eg. exiting MAME
in mid-game, it may run faulty on the next boot.
Enable the Night Switch to prevent this.
TODO:
- fix vblank failure
* dox note: to boot it in debugger, set bp ff5ec, and then ip=f5fe
- coincounters/hopper
****************************************************************/
@ -30,11 +36,13 @@ public:
meyc8088_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_maincpu(*this,"maincpu"),
m_vram(*this, "vram")
m_vram(*this, "vram"),
m_heartbeat(*this, "heartbeat")
{ }
required_device<cpu_device> m_maincpu;
required_shared_ptr<UINT8> m_vram;
required_device<timer_device> m_heartbeat;
UINT8 m_status;
UINT8 m_common;
@ -148,9 +156,17 @@ static SCREEN_VBLANK( meyc8088 )
***************************************************************************/
TIMER_DEVICE_CALLBACK( heartbeat_callback )
{
meyc8088_state *state = timer.machine().driver_data<meyc8088_state>();
state->m_status |= 0x20;
}
WRITE8_MEMBER(meyc8088_state::drive_w)
{
// drivers go into high-impedance state ~100ms after write (LS374 /OC)
m_status &= ~0x20;
m_heartbeat->adjust(attotime::from_msec(100));
// d0-d3: DC counter drivers
// d4-d7: AC motor drivers
@ -221,7 +237,7 @@ static READ8_DEVICE_HANDLER(meyc8088_status_r)
// d3: N/C
// d4: battery ok
// d5: /drive on
return (state->m_status & 7) | 0x18;
return (state->m_status & 0x27) | 0x18;
}
@ -351,7 +367,7 @@ INPUT_PORTS_END
static MACHINE_CONFIG_START( meyc8088, meyc8088_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8088, XTAL_15MHz / 3)
MCFG_CPU_ADD("maincpu", I8088, (XTAL_15MHz / 3) * 0.95) // NOTE: underclocked to prevent errors on diagnostics, MAME i8088 cycle timing is probably inaccurate
MCFG_CPU_PROGRAM_MAP(meyc8088_map)
MCFG_I8155_ADD("i8155_1", XTAL_15MHz / (3*1), i8155_intf[0])
@ -359,6 +375,8 @@ static MACHINE_CONFIG_START( meyc8088, meyc8088_state )
MCFG_NVRAM_ADD_0FILL("nvram")
MCFG_TIMER_ADD("heartbeat", heartbeat_callback)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS(XTAL_15MHz/3, 320, 0, 256, 261, 0, 224)
@ -387,4 +405,4 @@ ROM_START( gldarrow )
ROM_END
GAME( 1984, gldarrow, 0, meyc8088, gldarrow, 0, ROT0, "Meyco Games, Inc.", "Golden Arrow (Standard G8-03)", GAME_NOT_WORKING )
GAME( 1984, gldarrow, 0, meyc8088, gldarrow, 0, ROT0, "Meyco Games, Inc.", "Golden Arrow (Standard G8-03)", 0 )