aboutsummaryrefslogtreecommitdiff
path: root/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kernel.c2
-rw-r--r--kernel/uart.c6
2 files changed, 4 insertions, 4 deletions
diff --git a/kernel/kernel.c b/kernel/kernel.c
index ad21de3..8492425 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -67,7 +67,7 @@ ISR(SCHEDULE, ISR_NAKED)
TIMSK &= ~_BV(OCIE1A); /* turn off output compare 1A */
- if (TIFR & _BV(TOV1)) {
+ if (bit_is_set(TIFR, TOV1)) {
TIFR |= _BV(TOV1); /* reset flag */
++kernel.cycles;
}
diff --git a/kernel/uart.c b/kernel/uart.c
index a952758..cdfaf73 100644
--- a/kernel/uart.c
+++ b/kernel/uart.c
@@ -45,16 +45,16 @@ uart_getchar(void)
{
char c;
-#if BLOCKING
+#if 0 /* BLOCKING */
loop_until_bit_is_set(UCSRA, RXC);
#else
if (bit_is_clear(UCSRA, RXC))
return 0;
#endif
- if (UCSRA & _BV(FE))
+ if (bit_is_set(UCSRA, FE))
return -2; /* EOF */
- if (UCSRA & _BV(DOR))
+ if (bit_is_set(UCSRA, DOR))
return -1; /* ERR */
c = UDR;