diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c b/c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c index caf5bc87af..708f2ccb1a 100644 --- a/c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c +++ b/c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c @@ -136,10 +136,14 @@ uint32_t Clock_driver_nanoseconds_since_last_tick(void) PPC_Get_decrementer( clicks ); - tmp = (Clock_Decrementer_value - clicks) * 1000000; + /* + * Multiply by 1000 here separately from below so we do not overflow + * and get a negative value. + */ + tmp = (Clock_Decrementer_value - clicks) * 1000; tmp /= (BSP_bus_frequency/BSP_time_base_divisor); - return tmp; + return tmp * 1000; } /* |