user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<issafe>:
  endbr64
  movslq %esi,%rax
  mov    %rdi,%r9
  mov    %edx,%ecx
  mov    %rax,%r8
  mov    %rax,%rdi
  shl    $0x5,%r8
  add    %r9,%r8
  test   %edx,%edx
  je     L165
  cmpl   $0x1,(%r8)
  je     L378
  cmp    $0x1,%edx
  je     L8
L165:
  cmpl   $0x1,0x4(%r8)
  je     L378
  cmp    $0x2,%ecx
  je     L272
L8:
  cmpl   $0x1,0x8(%r8)
  je     L378
  cmp    $0x3,%ecx
  je     L268
L272:
  cmpl   $0x1,0xc(%r8)
  je     L378
  cmp    $0x4,%ecx
  je     L172
L268:
  cmpl   $0x1,0x10(%r8)
  je     L378
  cmp    $0x5,%ecx
  je     L615
L172:
  cmpl   $0x1,0x14(%r8)
  je     L378
  cmp    $0x6,%ecx
  je     L674
L615:
  cmpl   $0x1,0x18(%r8)
  je     L378
  cmp    $0x7,%ecx
  je     L227
L674:
  cmpl   $0x1,0x1c(%r8)
  je     L378
L227:
  push   %rbx
  movslq %ecx,%rbx
  test   %edi,%edi
  je     L242
  cmpl   $0x1,(%r9,%rbx,4)
  je     L128
  cmp    $0x1,%edi
  je     L37
L242:
  cmpl   $0x1,0x20(%r9,%rbx,4)
  je     L128
  cmp    $0x2,%edi
  je     L600
L37:
  cmpl   $0x1,0x40(%r9,%rbx,4)
  je     L128
  cmp    $0x3,%edi
  je     L144
L600:
  cmpl   $0x1,0x60(%r9,%rbx,4)
  je     L128
  cmp    $0x4,%edi
  je     L339
L144:
  cmpl   $0x1,0x80(%r9,%rbx,4)
  je     L128
  cmp    $0x5,%edi
  je     L275
L339:
  cmpl   $0x1,0xa0(%r9,%rbx,4)
  je     L128
  cmp    $0x6,%edi
  je     L609
L275:
  cmpl   $0x1,0xc0(%r9,%rbx,4)
  je     L128
  cmp    $0x7,%edi
  je     L175
L609:
  cmpl   $0x1,0xe0(%r9,%rbx,4)
  je     L128
L175:
  lea    0x0(,%rax,8),%r11
  mov    %ecx,%r10d
  lea    0x9(%r11,%rbx,1),%rax
  sub    %edi,%r10d
  lea    (%r9,%rax,4),%rdx
  mov    %edi,%eax
  nopw   0x0(%rax,%rax,1)
L645:
  lea    (%rax,%r10,1),%esi
  cmp    $0x7,%esi
  jg     L121
  cmp    $0x7,%eax
  jg     L121
  add    $0x24,%rdx
  add    $0x1,%eax
  cmpl   $0x1,-0x24(%rdx)
  jne    L645
L128:
  xor    %eax,%eax
L178:
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L378:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L121:
  lea    (%r11,%rbx,1),%rax
  lea    -0x24(%r9,%rax,4),%rdx
  mov    %edi,%eax
  nopl   0x0(%rax,%rax,1)
L377:
  mov    %eax,%esi
  add    %r10d,%esi
  js     L41
  test   %eax,%eax
  js     L41
  sub    $0x24,%rdx
  sub    $0x1,%eax
  cmpl   $0x1,0x24(%rdx)
  jne    L377
  xor    %eax,%eax
  jmp    L178
  nopl   0x0(%rax)
L41:
  mov    %edi,%eax
  or     %ecx,%eax
  cmp    $0x7,%eax
  ja     L536
  lea    0x0(,%rbx,4),%rdx
  lea    -0x1(%rdi),%esi
  lea    (%r8,%rdx,1),%rax
  lea    0x1(%rcx),%r10d
  cmpl   $0x1,-0x1c(%rax)
  je     L128
  or     %r10d,%esi
  cmp    $0x7,%esi
  ja     L143
  cmpl   $0x1,-0x38(%rax)
  lea    -0x2(%rdi),%esi
  lea    0x2(%rcx),%r10d
  je     L128
  or     %r10d,%esi
  cmp    $0x7,%esi
  ja     L143
  cmpl   $0x1,-0x54(%rax)
  lea    -0x3(%rdi),%esi
  lea    0x3(%rcx),%r10d
  je     L128
  or     %r10d,%esi
  cmp    $0x7,%esi
  ja     L143
  cmpl   $0x1,-0x70(%rax)
  lea    -0x4(%rdi),%esi
  lea    0x4(%rcx),%r10d
  je     L128
  or     %r10d,%esi
  cmp    $0x7,%esi
  ja     L143
  cmpl   $0x1,-0x8c(%rax)
  lea    -0x5(%rdi),%esi
  lea    0x5(%rcx),%r10d
  je     L128
  mov    %esi,%eax
  or     %r10d,%eax
  cmp    $0x7,%eax
  ja     L143
  add    %r8,%rdx
  lea    -0x6(%rdi),%eax
  lea    0x6(%rcx),%esi
  cmpl   $0x1,-0xa8(%rdx)
  je     L128
  or     %esi,%eax
  cmp    $0x7,%eax
  ja     L143
  cmpl   $0x1,-0xc4(%rdx)
  lea    -0x7(%rdi),%eax
  lea    0x7(%rcx),%esi
  je     L128
  or     %esi,%eax
  cmp    $0x7,%eax
  ja     L143
  cmpl   $0x1,-0xe0(%rdx)
  je     L128
L143:
  shl    $0x2,%rbx
  lea    0x1(%rdi),%esi
  lea    -0x1(%rcx),%edx
  lea    (%r8,%rbx,1),%rax
  cmpl   $0x1,0x1c(%rax)
  je     L128
  or     %esi,%edx
  cmp    $0x7,%edx
  ja     L536
  cmpl   $0x1,0x38(%rax)
  lea    0x2(%rdi),%esi
  lea    -0x2(%rcx),%edx
  je     L128
  or     %esi,%edx
  cmp    $0x7,%edx
  ja     L536
  cmpl   $0x1,0x54(%rax)
  lea    0x3(%rdi),%esi
  lea    -0x3(%rcx),%edx
  je     L128
  or     %esi,%edx
  cmp    $0x7,%edx
  ja     L536
  cmpl   $0x1,0x70(%rax)
  lea    0x4(%rdi),%edx
  lea    -0x4(%rcx),%esi
  je     L128
  or     %esi,%edx
  cmp    $0x7,%edx
  ja     L536
  cmpl   $0x1,0x8c(%rax)
  lea    0x5(%rdi),%edx
  lea    -0x5(%rcx),%esi
  je     L128
  mov    %edx,%eax
  or     %esi,%eax
  cmp    $0x7,%eax
  ja     L536
  add    %rbx,%r8
  lea    0x6(%rdi),%eax
  lea    -0x6(%rcx),%edx
  cmpl   $0x1,0xa8(%r8)
  je     L128
  or     %edx,%eax
  cmp    $0x7,%eax
  ja     L536
  add    $0x7,%edi
  sub    $0x7,%ecx
  cmpl   $0x1,0xc4(%r8)
  je     L128
  or     %ecx,%edi
  cmp    $0x7,%edi
  ja     L536
  xor    %eax,%eax
  cmpl   $0x1,0xe0(%r9,%rbx,1)
  pop    %rbx
  setne  %al
  ret
L536:
  mov    $0x1,%eax
  pop    %rbx
  ret
```

assistant: ```c
int issafe(int arr[][8], int a, int b) {
  int x = a;
  int y = b;
  for (int i = 0; i < 8; i++) {
    if (i == b)
      continue;
    if (arr[a][i] == 1)
      return 0;
  }
  for (int j = 0; j < 8; j++) {
    if (j == a)
      continue;
    if (arr[j][b] == 1)
      return 0;
  }
  while ((x < 8) && (y < 8)) {
    if (arr[++x][++y] == 1)
      return 0;
  }
  x = a;
  y = b;
  while ((x >= 0) && (y >= 0))
    if (arr[--x][--y] == 1)
      return 0;
  x = a;
  y = b;
  while ((x < 8) && (y < 8) && (x >= 0) && (y >= 0))
    if (arr[--x][++y] == 1)
      return 0;
  x = a;
  y = b;
  while ((x < 8) && (y < 8) && (x >= 0) && (y >= 0))
    if (arr[++x][--y] == 1)
      return 0;
  return 1;
}
```