diff options
Diffstat (limited to 'kernel/entry.S')
| -rw-r--r-- | kernel/entry.S | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/entry.S b/kernel/entry.S index 90fdbac..5ab365e 100644 --- a/kernel/entry.S +++ b/kernel/entry.S @@ -1,21 +1,21 @@ - # qemu -kernel loads the kernel at 0x80000000 - # and causes each CPU to jump there. + # qemu -kernel loads the kernel at 0x80000000 + # and causes each hart (i.e. CPU) to jump there. # kernel.ld causes the following code to # be placed at 0x80000000. .section .text .global _entry _entry: - # set up a stack for C. + # set up a stack for C. # stack0 is declared in start.c, # with a 4096-byte stack per CPU. # sp = stack0 + (hartid * 4096) la sp, stack0 li a0, 1024*4 - csrr a1, mhartid + csrr a1, mhartid addi a1, a1, 1 mul a0, a0, a1 add sp, sp, a0 - # jump to start() in start.c + # jump to start() in start.c call start spin: j spin |