diff options
| -rw-r--r-- | lib_mips/time.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/lib_mips/time.c b/lib_mips/time.c index 2c696b7..fe36530 100644 --- a/lib_mips/time.c +++ b/lib_mips/time.c @@ -51,13 +51,12 @@ void set_timer(ulong t) write_c0_count(t); } -void udelay (unsigned long usec) +void udelay(unsigned long usec) { - ulong tmo; - ulong start = get_timer(0); + unsigned int tmo; - tmo = usec * (CFG_HZ / 1000000); - while ((ulong)((read_c0_count() - start)) < tmo) + tmo = read_c0_count() + (usec * (CFG_MIPS_TIMER_FREQ / 1000000)); + while ((tmo - read_c0_count()) < 0x7fffffff) /*NOP*/; } |