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Fixed irq ack in Itazura Tenshi [Angelo Salese]

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This commit is contained in:
Angelo Salese 2011-12-24 16:58:35 +00:00
parent 472e22c2bc
commit 9fe231eb95
1 changed files with 14 additions and 7 deletions
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21
src/mame/drivers/itaten.c
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@ -26,7 +26,10 @@ class itaten_state : public driver_device
{
public:
itaten_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
: driver_device(mconfig, type, tag),
m_maincpu(*this,"maincpu"),
m_audiocpu(*this,"audiocpu")
{ }
/* memory pointers */
UINT8 * m_bgvideoram;
@ -42,7 +45,8 @@ public:
int m_bg_bank;
/* devices */
device_t *m_audiocpu;
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
};
@ -233,6 +237,11 @@ static WRITE8_HANDLER(snd_w)
device_set_input_line(state->m_audiocpu, INPUT_LINE_NMI, PULSE_LINE);
}
static WRITE8_HANDLER( main_irq_ack_w )
{
itaten_state *state = space->machine().driver_data<itaten_state>();
device_set_input_line(state->m_maincpu, 0, CLEAR_LINE);
}
/*************************************
*
@ -255,12 +264,12 @@ static ADDRESS_MAP_START( main_io_map, AS_IO, 8 )
AM_RANGE(0x02, 0x02) AM_READ_PORT("SYSTEM")
AM_RANGE(0x03, 0x03) AM_READ_PORT("DSWA")
AM_RANGE(0x04, 0x04) AM_READ_PORT("DSWB")
AM_RANGE(0x05, 0x05) AM_READNOP /* ? */
AM_RANGE(0x05, 0x05) AM_READNOP /* watchdog */
AM_RANGE(0x20, 0x20) AM_WRITE(coins_w)
AM_RANGE(0x21, 0x21) AM_WRITE(bg_bank_w)
AM_RANGE(0x22, 0x22) AM_WRITE(bg_scroll_x_w)
AM_RANGE(0x23, 0x23) AM_WRITE(bg_scroll_y_w)
AM_RANGE(0x24, 0x24) AM_WRITENOP /* ? */
AM_RANGE(0x24, 0x24) AM_WRITE(main_irq_ack_w)
AM_RANGE(0x27, 0x27) AM_WRITE(snd_w)
ADDRESS_MAP_END
@ -395,8 +404,6 @@ static MACHINE_START( itaten )
{
itaten_state *state = machine.driver_data<itaten_state>();
state->m_audiocpu = machine.device("audiocpu");
state->save_item(NAME(state->m_scroll_x));
state->save_item(NAME(state->m_scroll_y));
state->save_item(NAME(state->m_bg_bank));
@ -409,7 +416,7 @@ static MACHINE_CONFIG_START( itaten, itaten_state )
MCFG_CPU_ADD("maincpu", Z80, XTAL_16MHz/4)
MCFG_CPU_PROGRAM_MAP(main_map)
MCFG_CPU_IO_MAP(main_io_map)
MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)
MCFG_CPU_VBLANK_INT("screen", irq0_line_assert)
MCFG_CPU_ADD("audiocpu", Z80, XTAL_19_968MHz/8) /* Matches reference recording */
MCFG_CPU_PROGRAM_MAP(snd_map)