概要
中古ノート買ってみた。
windows10でfasmをやってみた。
練習問題、やってみた。
練習問題
fizzbuzzを書け。
コンパイル、実行結果
>fasm fizz.asm
flat assembler version 1.73.34 (1048576 kilobytes memory)
4 passes, 2048 bytes.
>fizz
1
2
fizz
4
buzz
fizz
7
8
fizz
buzz
11
fizz
13
14
fizzbuzz
16
17
fizz
19
buzz
fizz
22
23
fizz
buzz
26
fizz
28
29
fizzbuzz
31
32
fizz
34
buzz
fizz
37
38
fizz
buzz
41
fizz
43
44
fizzbuzz
46
47
fizz
49
buzz
fizz
52
53
fizz
buzz
56
fizz
58
59
fizzbuzz
61
62
fizz
64
buzz
fizz
67
68
fizz
buzz
71
fizz
73
74
fizzbuzz
76
77
fizz
79
buzz
fizz
82
83
fizz
buzz
86
fizz
88
89
fizzbuzz
91
92
fizz
94
buzz
fizz
97
98
fizz
buzz
サンプルコード
format PE64 console
entry main
include 'C:\Program Files (x86)\fasmw17334\INCLUDE\win64a.inc'
section '.idata' data readable import
library kernel32, 'kernel32.dll', msvcrt, 'msvcrt.dll'
import kernel32, ExitProcess, 'ExitProcess'
import msvcrt, printf, 'printf', getchar, 'getchar'
section '.text' code executable
main:
push rbp
mov rbp, rsp
_start:
mov r15, 0
mov r14, 0
_loop:
inc r15
_mod15:
mov r14, 15
mov edx, 0
mov eax, r15d
mov ecx, r14d
div ecx
_cmp15:
cmp edx, 0
jne _mod5
_print15:
cinvoke printf, fmt15
jmp _cmp100
_mod5:
mov r14, 5
mov edx, 0
mov eax, r15d
mov ecx, r14d
div ecx
_cmp5:
cmp edx, 0
jne _mod3
_print5:
cinvoke printf, fmt5
jmp _cmp100
_mod3:
mov r14, 3
mov edx, 0
mov eax, r15d
mov ecx, r14d
div ecx
_cmp3:
cmp edx, 0
jne _printn
_print3:
cinvoke printf, fmt3
jmp _cmp100
_printn:
cinvoke printf, fmt, r15
_cmp100:
cmp r15, 100
jne _loop
_end:
mov eax, 0
invoke ExitProcess, 0
section '.data' data readable
fmt db "%d",10,0
fmt15 db "fizzbuzz",10,0
fmt5 db "buzz",10,0
fmt3 db "fizz",10,0
以上。