Function cpu_halt

core/cpu.c:866–880

}

static void cpu_halt(void) {
    cpu.halted = true;
    cpu_restore_next();
#ifdef DEBUG_SUPPORT
    while (cpu.cycles < cpu.next && !cpu.IEF1 && debug.step) {
        cpu.haltCycles++;
        cpu.cycles++;
        debug_open(DBG_FROZEN, cpu.registers.PC);
    }
#endif
    if (cpu.cycles < cpu.next) {
        cpu.haltCycles += cpu.next - cpu.cycles;
        cpu.cycles = cpu.next; /* consume all of the cycles */
    }
}

void cpu_restore_next(void) {
    if (cpu.NMI || (cpu.IEF1 && (intrpt->status & intrpt->enabled)) || cpu_check_signals() != CPU_SIGNAL_NONE) {