wslでubuntu その7

概要

wslでubuntuやってみた。
練習問題やってみた。

練習問題

wslとpaizaで動く、fizzbuzzを書け。

サンプルコード

.code64
.text
.global main

main:
    mov     $1, %cx
loop:
    mov     %cx, %ax
    mov     $15, %bl
    div     %bl
    cmp     $0, %ah
    jz      loop15
    mov     %cx, %ax
    mov     $5, %bl
    div     %bl
    cmp     $0, %ah
    jz      loop5
    mov     %cx, %ax
    mov     $3, %bl
    div     %bl
    cmp     $0, %ah
    jz      loop3
    mov     %cx, %ax
loop2:
    push    %cx
    call    bin2dec
    pop     %cx
loop1:
    add     $1, %cx
    cmp     $101, %cx
    jnz     loop
    ret

loop15:
    mov     $fizzbuzz, %rsi
    mov     $1, %rdi
    mov     $9, %rdx
    mov     $1, %rax
    push    %cx
    syscall
    pop     %cx
    jmp     loop1

loop5:
    mov     $buzz, %rsi
    mov     $1, %rdi
    mov     $5, %rdx
    mov     $1, %rax
    push    %cx
    syscall
    pop     %cx
    jmp     loop1

loop3:
    mov     $fizz, %rsi
    mov     $1, %rdi
    mov     $5, %rdx
    mov     $1, %rax
    push    %cx
    syscall
    pop     %cx
    jmp     loop1

bin2dec:
    mov     $100, %bl
    div     %bl
    push    %ax
    call    putd
    pop     %ax
    mov     %ah, %al
    and     $0xff, %ax
    mov     $10, %bl
    div     %bl
    push    %ax
    call    putd
    pop     %ax
    mov     %ah, %al
    call    putd
    mov     $10, %ax
    call    putd
    ret

putd:
    and     $0x0f, %rax
    mov     $num, %rsi
    add     %rax, %rsi
    mov     $1, %rdi
    mov     $1, %rdx
    mov     $1, %rax
    push    %cx
    syscall
    pop     %cx
    ret

.data
fizz:
    .ascii  "Fizz "
buzz:
    .ascii  "Buzz "
fizzbuzz:
    .ascii  "FizzBuzz " 
num:
    .ascii  "0123456789 "

成果物

以上。