static void check_irq(device_t *device)
{
lh5801_state *cpustate = get_safe_token(device);
if (cpustate->ir_flipflop[0])
{
//NMI interrupt
cpustate->ir_flipflop[0] = 0;
lh5801_push(cpustate,cpustate->t);
cpustate->t&=~IE;
lh5801_push_word(cpustate,P);
P = (cpustate->program->read_byte(0xfffc)<<8) | cpustate->program->read_byte(0xfffd);
}
else if (cpustate->ir_flipflop[1] && (cpustate->t & IE))
{
//counter interrupt (counter not yet implemented)
cpustate->ir_flipflop[1] = 0;
lh5801_push(cpustate,cpustate->t);
cpustate->t&=~IE;
lh5801_push_word(cpustate,P);
P = (cpustate->program->read_byte(0xfffa)<<8) | cpustate->program->read_byte(0xfffb);
}
else if (cpustate->ir_flipflop[2] && (cpustate->t & IE))
{
//MI interrupt
cpustate->ir_flipflop[2] = 0;
lh5801_push(cpustate, cpustate->t);
cpustate->t&=~IE;
lh5801_push_word(cpustate, P);
P = (cpustate->program->read_byte(0xfff8)<<8) | cpustate->program->read_byte(0xfff9);
}
}
void lh5801_cpu_device::check_irq()
{
if (m_ir_flipflop[0])
{
//NMI interrupt
m_ir_flipflop[0] = 0;
lh5801_push(m_t);
m_t&=~IE;
lh5801_push_word(P);
P = (m_program->read_byte(0xfffc)<<8) | m_program->read_byte(0xfffd);
}
else if (m_ir_flipflop[1] && (m_t & IE))
{
//counter interrupt (counter not yet implemented)
m_ir_flipflop[1] = 0;
lh5801_push(m_t);
m_t&=~IE;
lh5801_push_word(P);
P = (m_program->read_byte(0xfffa)<<8) | m_program->read_byte(0xfffb);
}
else if (m_ir_flipflop[2] && (m_t & IE))
{
//MI interrupt
m_ir_flipflop[2] = 0;
lh5801_push(m_t);
m_t&=~IE;
lh5801_push_word(P);
P = (m_program->read_byte(0xfff8)<<8) | m_program->read_byte(0xfff9);
}
}
