diff options
| author | Christian Cunningham <cc@localhost> | 2022-02-21 21:56:01 -0700 |
|---|---|---|
| committer | Christian Cunningham <cc@localhost> | 2022-02-21 21:56:01 -0700 |
| commit | 3b883c24da327036a049a0430bd00ebfdffd5c8f (patch) | |
| tree | a266169da94b95f8c1b156285c2f3504c89cd5f3 /src | |
| parent | 6c7bdd85bbe8d2b791e0fe52f93f5e75e8beea2d (diff) | |
Added wait
Diffstat (limited to 'src')
| -rw-r--r-- | src/util/time.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/util/time.c b/src/util/time.c index 0ae3ccf..abb9c8d 100644 --- a/src/util/time.c +++ b/src/util/time.c @@ -67,3 +67,10 @@ unsigned long long get_time(void) t.tvalb.high = *(unsigned long*)SYS_TIMER_CHI; return t.tval; } + +void wait_msec(unsigned int n) +{ + unsigned long start = *(volatile unsigned long*)SYS_TIMER_CHI; + while (*(volatile unsigned long*)SYS_TIMER_CHI - start < n) + asm volatile("nop"); +} |