| 76,9 → 76,26 |
|---|
| return cp0_status_read(); |
| } |
| |
| /* TODO: This is SMP unsafe!!! */ |
| static unsigned long nextcount; |
| /** Start hardware clock */ |
| static void timer_start(void) |
| { |
| nextcount = cp0_compare_value + cp0_count_read(); |
| cp0_compare_write(nextcount); |
| } |
| |
| static void timer_exception(int n, istate_t *istate) |
| { |
| cp0_compare_write(cp0_count_read() + cp0_compare_value); |
| unsigned long drift; |
| |
| drift = cp0_count_read() - nextcount; |
| while (drift > cp0_compare_value) { |
| drift -= cp0_compare_value; |
| CPU->missed_clock_ticks++; |
| } |
| nextcount = cp0_count_read() + cp0_compare_value - drift; |
| cp0_compare_write(nextcount); |
| clock(); |
| } |
| |
| 100,6 → 117,7 |
|---|
| int_register(TIMER_IRQ, "timer", timer_exception); |
| int_register(0, "swint0", swint0); |
| int_register(1, "swint1", swint1); |
| timer_start(); |
| } |
| |
| static void ipc_int(int n, istate_t *istate) |