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-rw-r--r--kernel/kernelvec.S5
-rw-r--r--kernel/trap.c2
2 files changed, 4 insertions, 3 deletions
diff --git a/kernel/kernelvec.S b/kernel/kernelvec.S
index 5fce79a..3e9d3e9 100644
--- a/kernel/kernelvec.S
+++ b/kernel/kernelvec.S
@@ -101,9 +101,10 @@ timervec:
sd a2, 8(a0)
sd a3, 16(a0)
- # add another second to mtimecmp0.
+ # schedule the next timer interrupt
+ # by adding interval to mtimecmp.
ld a1, 32(a0) # CLINT_MTIMECMP(hart)
- ld a2, 40(a0) # ticks per second
+ ld a2, 40(a0) # interval
ld a3, 0(a1)
add a3, a3, a2
sd a3, 0(a1)
diff --git a/kernel/trap.c b/kernel/trap.c
index 6d5e46b..53d86ca 100644
--- a/kernel/trap.c
+++ b/kernel/trap.c
@@ -191,7 +191,7 @@ devintr()
plic_complete(irq);
return 1;
- } else if(scause == 0x8000000000000001){
+ } else if(scause == 0x8000000000000001L){
// software interrupt from a machine-mode timer interrupt,
// forwarded by timervec in kernelvec.S.