Shift CPU TSC down to reduce need for 64bit variables.

The time-stamp-counter has a higher accuracy than is needed in
SeaBIOS.  Down shift it to ensure it safely fits in a 32bit variable.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/util.h b/src/util.h
index a91b7f8e..bc2fd006 100644
--- a/src/util.h
+++ b/src/util.h
@@ -285,7 +285,7 @@ void releaseRTC(void);
 u32 ticks_to_ms(u32 ticks);
 u32 ticks_from_ms(u32 ms);
 void pmtimer_setup(u16 ioport);
-int check_tsc(u64 end);
+int check_tsc(u32 end);
 void timer_setup(void);
 void ndelay(u32 count);
 void udelay(u32 count);
@@ -293,8 +293,8 @@ void mdelay(u32 count);
 void nsleep(u32 count);
 void usleep(u32 count);
 void msleep(u32 count);
-u64 calc_future_tsc(u32 msecs);
-u64 calc_future_tsc_usec(u32 usecs);
+u32 calc_future_tsc(u32 msecs);
+u32 calc_future_tsc_usec(u32 usecs);
 u32 calc_future_timer_ticks(u32 count);
 u32 calc_future_timer(u32 msecs);
 int check_timer(u32 end);