void cpu_spinuntil_time(double duration)
{
static int timetrig = 0;
cpu_spinuntil_trigger(TRIGGER_SUSPENDTIME + timetrig);
cpu_triggertime(duration, TRIGGER_SUSPENDTIME + timetrig);
timetrig = (timetrig + 1) & 255;
}
void arkanoid_Z80_mcu_w(int offset,int data)
{
/* a write from the Z80 has occurred, mark it and remember the value */
z80write = 1;
fromz80 = data;
/* give up a little bit of time to let the 68705 detect the write */
cpu_spinuntil_trigger(700);
}
void docastle_shared1_w(int offset,int data)
{
buffer1[offset] = data;
if (offset == 8)
{
/* freeze execution of the master CPU until the slave has used the shared memory */
cpu_spinuntil_trigger(500);
}
}
void eolith_speedup_read(void)
{
/* for debug */
// if ((activecpu_get_pc()!=eolith_speedup_address) && (eolith_vblank!=1) )
// printf("%06x eolith speedup_read data %02x\n",activecpu_get_pc(), eolith_vblank);
if (activecpu_get_pc()==eolith_speedup_address && eolith_vblank==0 && eolith_scanline < eolith_speedup_resume_scanline)
{
cpu_spinuntil_trigger(1000);
}
}
int docastle_shared0_r(int offset)
{
/* this shouldn't be done, however it's the only way I've found */
/* to make dip switches work in Do Run Run. */
if (offset == 8)
{
cpu_cause_interrupt(1,Z80_NMI_INT);
cpu_spinuntil_trigger(500);
}
return buffer0[offset];
}
void cpu_spin(void)
{
cpu_spinuntil_trigger(TRIGGER_TIMESLICE);
}
void cpu_spinuntil_int(void)
{
VERIFY_EXECUTINGCPU_VOID(cpu_spinuntil_int);
cpu_spinuntil_trigger(TRIGGER_INT + activecpu);
}