diff options
Diffstat (limited to 'rgo/src/memfill.S')
| -rw-r--r-- | rgo/src/memfill.S | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/rgo/src/memfill.S b/rgo/src/memfill.S index c22547e..7dc00c3 100644 --- a/rgo/src/memfill.S +++ b/rgo/src/memfill.S @@ -37,16 +37,14 @@ rgo_memfill: .done: ret #elif defined(__x86_64__) - /* rax: Address of the current element. */ - movq %rdi,%rax - /* rax: Address of the element after the last element. */ - movq %rdi,%rcx - addq %rsi,%rcx + /* rdi: Address of the current element. */ + /* rsi: Address of the element after the last element. */ + addq %rdi,%rsi .loop: - cmpq %rcx,%rax + cmpq %rsi,%rdi je .done /* Exit loop if we have reached the final element. */ - movb %dl,(%rax) - incq %rax + movb %dl,(%rdi) + incq %rdi jmp .loop /* Continue to next element. */ .done: ret |