回答編集履歴
2
追記
test
CHANGED
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@@ -40,7 +40,7 @@
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40
40
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41
41
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movq -16(%rbp), %rax
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42
42
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43
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-
movzbl (%rax), %esi
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43
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+
movzbl (%rax), %esi # byteをintに変換
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44
44
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45
45
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movb $0, %al
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46
46
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1
エラー追記
test
CHANGED
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@@ -5,3 +5,87 @@
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5
5
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以下を参考に。
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6
6
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7
7
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[整数変換のルールを理解する](https://www.jpcert.or.jp/sc-rules/c-int02-c.html)
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8
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+
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9
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+
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10
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11
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+
「追記」
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12
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13
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```asm
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14
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15
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main: # @main
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16
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17
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.cfi_startproc
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18
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19
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# %bb.0:
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20
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21
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pushq %rbp
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22
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23
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.cfi_def_cfa_offset 16
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24
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25
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.cfi_offset %rbp, -16
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26
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27
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movq %rsp, %rbp
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28
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29
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.cfi_def_cfa_register %rbp
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30
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31
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subq $32, %rsp
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32
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33
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movabsq $.L.str.1, %rdi
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34
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35
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movabsq $.L.str, %rax
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36
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37
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movl $0, -4(%rbp)
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38
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39
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movq %rax, -16(%rbp)
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40
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+
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41
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movq -16(%rbp), %rax
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42
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43
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movzbl (%rax), %esi
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44
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45
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movb $0, %al
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46
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47
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callq printf
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48
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49
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xorl %esi, %esi
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50
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+
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51
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movl %eax, -20(%rbp) # 4-byte Spill
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52
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+
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53
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movl %esi, %eax
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54
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55
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addq $32, %rsp
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56
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57
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popq %rbp
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58
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59
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retq
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60
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61
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.Lfunc_end0:
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62
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63
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.size main, .Lfunc_end0-main
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64
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65
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.cfi_endproc
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66
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67
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# -- End function
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68
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69
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.type .L.str,@object # @.str
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70
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71
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.section .rodata.str1.1,"aMS",@progbits,1
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72
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73
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.L.str:
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74
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75
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.asciz "abc"
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76
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77
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.size .L.str, 4
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78
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79
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80
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81
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.type .L.str.1,@object # @.str.1
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82
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+
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83
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.L.str.1:
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84
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+
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85
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.asciz "%d\n"
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86
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87
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.size .L.str.1, 4
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88
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+
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89
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+
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90
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+
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91
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```
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