static int finalizr_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (*finalizr_interrupt_enable & 2) return M6809_INT_IRQ;
}
else if (cpu_getiloops() % 2)
{
if (*finalizr_interrupt_enable & 1) return nmi_interrupt();
}
return ignore_interrupt();
}
static int ironhors_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (*ironhors_interrupt_enable & 4) return M6809_INT_FIRQ;
}
else if (cpu_getiloops() % 2)
{
if (*ironhors_interrupt_enable & 1) return nmi_interrupt();
}
return ignore_interrupt();
}
static int labyrunr_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (K007121_ctrlram[0][0x07] & 0x02) return HD6309_INT_IRQ;
}
else if (cpu_getiloops() % 2)
{
if (K007121_ctrlram[0][0x07] & 0x01) return nmi_interrupt();
}
return ignore_interrupt();
}
static int pingpong_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (*intenable & 0x04) return interrupt();
}
else if (cpu_getiloops() % 2)
{
if (*intenable & 0x08) return nmi_interrupt();
}
return ignore_interrupt();
}
int brkthru_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (nmi_enable) return nmi_interrupt();
}
else
{
/* generate IRQ on coin insertion */
if ((readinputport(2) & 0xe0) != 0xe0) return interrupt();
}
return ignore_interrupt();
}
static int exprraid_interrupt(void)
{
static int coin = 0;
if ( ( ~readinputport( 3 ) ) & 0xc0 ) {
if ( coin == 0 ) {
coin = 1;
return nmi_interrupt();
}
} else
coin = 0;
return ignore_interrupt();
}
static int simpsons_irq(void)
{
if (cpu_getiloops() == 0)
{
if (simpsons_firq_enabled && K053246_is_IRQ_enabled())
return KONAMI_INT_FIRQ;
}
else
{
if (K052109_is_IRQ_enabled())
return KONAMI_INT_IRQ;
}
return ignore_interrupt();
}
/* counter. */
static int dday_interrupt (void)
{
#define START_TIMER_SMALL 60
static int timerValSmall = START_TIMER_SMALL;
/* if the timer hits zero, start over at START_TIMER */
timerValSmall--;
if (timerValSmall == 0)
{
timerValSmall = START_TIMER_SMALL;
timerVal--;
if (timerVal == -1) timerVal = START_TIMER;
}
return ignore_interrupt();
}
int spiders_timed_irq(void)
{
/* Update CA1 on PIA1 - copy of PA0 (COIN1?) */
pia_0_ca1_w(0 , input_port_0_r(0)&0x01);
/* Update CA2 on PIA1 - copy of PA0 (PS2) */
pia_0_ca2_w(0 , input_port_0_r(0)&0x02);
/* Update CA1 on PIA1 - copy of PA0 (COIN1?) */
pia_0_cb1_w(0 , input_port_6_r(0));
/* Update CB2 on PIA1 - NOT CONNECTED */
return ignore_interrupt();
}
static int yamyam_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (input_ports_hack)
{
unsigned char *RAM = memory_region(REGION_CPU1);
RAM[0xe004] = readinputport(4); /* COIN */
RAM[0xe005] = readinputport(3); /* IN1 */
RAM[0xe006] = readinputport(2); /* IN0 */
}
return 0xd7; /* RST 10h vblank */
}
if ((cpu_getiloops() & 1) == 1) return 0xcf; /* RST 08h sound (hand tuned) */
else return ignore_interrupt();
}
int wow_interrupt(void)
{
int res=ignore_interrupt();
int Direction;
CurrentScan++;
if (CurrentScan == Machine->drv->cpu[0].vblank_interrupts_per_frame)
{
CurrentScan = 0;
/*
* Seawolf2 needs to emulate rotary ports
*
* Checked each flyback, takes 1 second to traverse screen
*/
Direction = input_port_0_r(0);
if ((Direction & 2) && (Controller1 > 0))
Controller1--;
if ((Direction & 1) && (Controller1 < 63))
Controller1++;
Direction = input_port_1_r(0);
if ((Direction & 2) && (Controller2 > 0))
Controller2--;
if ((Direction & 1) && (Controller2 < 63))
Controller2++;
}
if (CurrentScan < 204) CopyLine(CurrentScan);
/* Scanline interrupt enabled ? */
if ((InterruptFlag & 0x08) && (CurrentScan == NextScanInt))
res = interrupt();
return res;
}
static int tagteam_interrupt(void)
{
static int coin;
int port;
port = readinputport(0) & 0xc0;
if (port != 0xc0) /* Coin */
{
if (coin == 0)
{
coin = 1;
return nmi_interrupt();
}
}
else coin = 0;
return ignore_interrupt();
}
int battlane_cpu1_interrupt(void)
{
if (cpu_getiloops()==0)
{
/* See note in battlane_cpu_command_w */
if (~battlane_cpu_control & 0x08)
{
cpu_set_nmi_line(1, PULSE_LINE);
return M6809_INT_NMI;
}
else
return ignore_interrupt();
}
else
{
/*
FIRQ seems to drive the music & coin inputs. I have no idea what it is
attached to
*/
return M6809_INT_FIRQ;
}
}
int geebee_interrupt(void)
{
cpu_set_irq_line(0, 0, PULSE_LINE);
return ignore_interrupt();
}
int senjyo_interrupt(void)
{
if (int_delay_kludge == 0) return interrupt();
else int_delay_kludge--;
return ignore_interrupt();
}
int battlane_cpu2_interrupt(void)
{
/* CPU2's interrupts are generated on-demand by CPU1 */
return ignore_interrupt();
}
int tankbatt_interrupt (void)
{
if ((readinputport (0) & 0x60) == 0) return interrupt ();
if (tankbatt_nmi_enable) return nmi_interrupt ();
else return ignore_interrupt ();
}
static int dv_interrupt(void)
{
if (nmi_enable) return M6809_INT_NMI;
else return ignore_interrupt();
}
static int aliens_interrupt( void )
{
if (K051960_is_IRQ_enabled()) return interrupt();
else return ignore_interrupt();
}
static int parodius_interrupt(void)
{
if (K052109_is_IRQ_enabled()) return interrupt();
else return ignore_interrupt();
}
static int ddrible_interrupt_0( void )
{
if (ddrible_int_enable_0)
return M6809_INT_FIRQ;
return ignore_interrupt();
}
int ddrible_interrupt_1( void )
{
if (int_enable_1)
return M6809_INT_FIRQ;
return ignore_interrupt();
}
int digdug_interrupt_3(void)
{
if (interrupt_enable_3) return nmi_interrupt();
else return ignore_interrupt();
}
int galaga_interrupt_2(void)
{
if (interrupt_enable_2) return interrupt();
else return ignore_interrupt();
}
/***************************************************************************
These games don't have VBlank interrupts.
Interrupts are still used by the game: but they are related to coin
slots.
***************************************************************************/
static int astrof_interrupt(void)
{
if (readinputport(2) & 1) /* Coin */
return nmi_interrupt();
else return ignore_interrupt();
}
int kaitei_interrupt(void)
{
cpu_set_irq_line(0, 0, HOLD_LINE);
return ignore_interrupt();
}
static int gundealr_interrupt(void)
{
if (cpu_getiloops() == 0) return 0xd7; /* vblank */
if ((cpu_getiloops() & 1) == 1) return 0xcf; /* sound (hand tuned) */
else return ignore_interrupt();
}
static int pandoras_interrupt_b( void ){
if (irq_enable_b)
return M6809_INT_IRQ;
return ignore_interrupt();
}
int galaga_interrupt_3(void)
{
if (interrupt_enable_3) return nmi_interrupt();
else return ignore_interrupt();
}
static int mainevt_interrupt(void)
{
if (K052109_is_IRQ_enabled()) return M6809_INT_IRQ;
else return ignore_interrupt();
}