strcmp: core: use movsx instead dirty code

2024-09-02 17:21:52 +02:00 · 2024-09-02 17:21:52 +02:00 · 5bccb1efc6
commit 5bccb1efc6
parent 723a2e901b
1 changed files with 2 additions and 5 deletions
--- a/src/ft_strcmp.asm
+++ b/src/ft_strcmp.asm
@ -17,9 +17,6 @@ loop:
        inc rcx
        jmp loop
 out:
-        mov rax, 0
-        mov rbx, 0
-        mov bl, BYTE [rsi + rcx]
-        mov al, BYTE [rdi + rcx]
-        sub rax, rbx
+        sub bl, dl
+        movsx rax, bl
        ret