section .data
buf db 0, 0 ; 最大2桁 → 2バイト確保
section .text
global _start
_start:
; ---- 例: rax = 42 ----
mov rax, 2
imul rax, 2
imul rax, 2
imul rax, 2
imul rax, 2
imul rax, 2
; --- 10で割って「十の位」と「一の位」に分解 ---
mov rbx, 10
xor rdx, rdx ; div の前は rdx = 0(重要)
div rbx ; rax ÷ 10 → rax = 商, rdx = 余り
; 商 → 十の位
add al, '0'
mov [buf], al
; 余り → 一の位
add dl, '0'
mov [buf+1], dl
; --- 出力(2文字) ---
mov rax, 1
mov rdi, 1
mov rsi, buf
mov rdx, 2
syscall
; exit
mov rax, 60
xor rdi, rdi
syscall
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