user: 这段汇编代码用C语言表示是什么样的:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0xc50,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x4,-0x1c30(%rbp)
  movl   $0x4,-0x1c2c(%rbp)
  movl   $0x4,-0x1c28(%rbp)
  movl   $0x4,-0x1c24(%rbp)
  movl   $0x0,-0x1c44(%rbp)
  movl   $0x0,-0x1c40(%rbp)
  jmp    L99
L202:
  movl   $0x0,-0x1c3c(%rbp)
  jmp    L98
L232:
  mov    -0x1c3c(%rbp),%eax
  lea    0x4000(%rax),%edx
  mov    -0x1c40(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x1c3c(%rbp),%eax
  cltq
  shl    $0x4,%rax
  add    %rcx,%rax
  mov    %edx,-0x1c10(%rbp,%rax,4)
  mov    -0x1c3c(%rbp),%edx
  mov    -0x1c40(%rbp),%eax
  add    %edx,%eax
  lea    0x4000(%rax),%edx
  mov    -0x1c40(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x1c3c(%rbp),%eax
  cltq
  shl    $0x4,%rax
  add    %rcx,%rax
  mov    %edx,-0x1810(%rbp,%rax,4)
  addl   $0x1,-0x1c3c(%rbp)
L98:
  cmpl   $0xf,-0x1c3c(%rbp)
  jle    L232
  addl   $0x1,-0x1c40(%rbp)
L99:
  cmpl   $0xf,-0x1c40(%rbp)
  jle    L202
  movl   $0x0,-0x1c40(%rbp)
  jmp    L243
L2:
  movl   $0x0,-0x1c3c(%rbp)
  jmp    L41
L36:
  mov    -0x1c3c(%rbp),%edx
  mov    -0x1c40(%rbp),%eax
  add    %edx,%eax
  lea    0x4000(%rax),%edx
  mov    -0x1c40(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x1c3c(%rbp),%eax
  cltq
  shl    $0x5,%rax
  add    %rcx,%rax
  mov    %edx,-0x1010(%rbp,%rax,4)
  addl   $0x1,-0x1c3c(%rbp)
L41:
  cmpl   $0x1f,-0x1c3c(%rbp)
  jle    L36
  addl   $0x1,-0x1c40(%rbp)
L243:
  cmpl   $0x1f,-0x1c40(%rbp)
  jle    L2
  mov    -0x1c30(%rbp),%eax
  mov    %eax,%edx
  neg    %edx
  cmovns %edx,%eax
  and    $0x1,%eax
  test   %eax,%eax
  setne  %al
  movzbl %al,%eax
  mov    %eax,-0x1c20(%rbp)
  mov    -0x1c2c(%rbp),%eax
  mov    %eax,%edx
  neg    %edx
  cmovns %edx,%eax
  and    $0x1,%eax
  test   %eax,%eax
  setne  %al
  movzbl %al,%eax
  mov    %eax,-0x1c1c(%rbp)
  mov    -0x1c24(%rbp),%eax
  lea    0x0(,%rax,8),%edx
  mov    -0x1c2c(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  add    %edx,%eax
  mov    %eax,-0x1c38(%rbp)
  mov    -0x1c28(%rbp),%eax
  lea    0x0(,%rax,8),%edx
  mov    -0x1c30(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  add    %edx,%eax
  mov    %eax,-0x1c34(%rbp)
  cmpl   $0x0,-0x1c20(%rbp)
  je     L70
  cmpl   $0x0,-0x1c30(%rbp)
  jns    L195
  subl   $0x1,-0x1c34(%rbp)
L195:
  cmpl   $0x0,-0x1c1c(%rbp)
  je     L270
  cmpl   $0x0,-0x1c2c(%rbp)
  jns    L70
  subl   $0x1,-0x1c38(%rbp)
  jmp    L70
L270:
  cmpl   $0x0,-0x1c1c(%rbp)
  je     L70
  cmpl   $0x0,-0x1c2c(%rbp)
  jns    L70
  subl   $0x1,-0x1c38(%rbp)
L70:
  movl   $0x0,-0x1c44(%rbp)
  cmpl   $0x10,-0x1c34(%rbp)
  jle    L24
  movl   $0x10,-0x1c34(%rbp)
L24:
  cmpl   $0x10,-0x1c38(%rbp)
  jle    L164
  movl   $0x10,-0x1c38(%rbp)
L164:
  movl   $0x0,-0x1c40(%rbp)
  jmp    L12
L228:
  movl   $0x0,-0x1c3c(%rbp)
  jmp    L236
L261:
  mov    -0x1c40(%rbp),%edx
  mov    -0x1c38(%rbp),%eax
  add    %edx,%eax
  mov    -0x1c3c(%rbp),%ecx
  mov    -0x1c34(%rbp),%edx
  add    %ecx,%edx
  movslq %edx,%rdx
  cltq
  shl    $0x5,%rax
  add    %rdx,%rax
  mov    -0x1010(%rbp,%rax,4),%eax
  mov    -0x1c3c(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x1c40(%rbp),%edx
  movslq %edx,%rdx
  shl    $0x4,%rdx
  add    %rcx,%rdx
  mov    %eax,-0x1410(%rbp,%rdx,4)
  addl   $0x1,-0x1c3c(%rbp)
L236:
  cmpl   $0xf,-0x1c3c(%rbp)
  jle    L261
  addl   $0x1,-0x1c40(%rbp)
L12:
  cmpl   $0xf,-0x1c40(%rbp)
  jle    L228
  movl   $0x0,-0x1c40(%rbp)
  jmp    L26
L69:
  movl   $0x0,-0x1c3c(%rbp)
  jmp    L119
L134:
  mov    -0x1c3c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x1c40(%rbp),%eax
  cltq
  shl    $0x4,%rax
  add    %rdx,%rax
  mov    -0x1410(%rbp,%rax,4),%edx
  mov    -0x1c3c(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x1c40(%rbp),%eax
  cltq
  shl    $0x4,%rax
  add    %rcx,%rax
  mov    -0x1810(%rbp,%rax,4),%eax
  add    %edx,%eax
  add    $0x1,%eax
  sar    %eax
  mov    %eax,%edx
  mov    -0x1c3c(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x1c40(%rbp),%eax
  cltq
  shl    $0x4,%rax
  add    %rcx,%rax
  mov    -0x1c10(%rbp,%rax,4),%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    %eax,-0x1c14(%rbp)
  mov    -0x1c14(%rbp),%eax
  mov    %eax,%edx
  neg    %edx
  cmovns %edx,%eax
  add    %eax,-0x1c44(%rbp)
  addl   $0x1,-0x1c3c(%rbp)
L119:
  cmpl   $0xf,-0x1c3c(%rbp)
  jle    L134
  addl   $0x1,-0x1c40(%rbp)
L26:
  cmpl   $0xf,-0x1c40(%rbp)
  jle    L69
  mov    -0x1c44(%rbp),%eax
  mov    %eax,-0x1c18(%rbp)
  cmpl   $0x1780,-0x1c18(%rbp)
  jne    L80
  mov    $0xbadbeef,%eax
  jmp    L147
L80:
  mov    $0xbad,%eax
L147:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L267
  call   <__stack_chk_fail@plt>
L267:
  leave
  ret
```

assistant: ```c
int main() {
  int currentBlock[16][16];
  int blockSoFar[16][16];
  int prev[32][32];
  int mx = 4;
  int my = 4;
  int bx = 4;
  int by = 4;
  int diff = 0;
  int localDiff;
  int y;
  int x;
  int yHalf;
  int xHalf;
  int fy;
  int fx;
  int lumMotionBlock[16][16];
  int checksum;
  for (y = 0; y < 16; y++) {
    for (x = 0; x < 16; x++) {
      currentBlock[x][y] = x + (1 << (16 - 2));
      blockSoFar[x][y] = x + y + (1 << (16 - 2));
    }
  }
  for (y = 0; y < 32; y++) {
    for (x = 0; x < 32; x++) {
      prev[x][y] = x + y + (1 << (16 - 2));
    }
  }
  xHalf = ((((mx) < 0) ? -(mx) : (mx)) % 2 == 1);
  yHalf = ((((my) < 0) ? -(my) : (my)) % 2 == 1);
  {
    fy = (by)*8 + (my / 2);
    fx = (bx)*8 + (mx / 2);
  };
  if (xHalf) {
    if (mx < 0) {
      fx--;
    }
    if (yHalf) {
      if (my < 0) {
        fy--;
      }
    } else if (yHalf) {
      if (my < 0) {
        fy--;
      }
    }
  }
  diff = 0;
  if (fx > 16)
    fx = 16;
  if (fy > 16)
    fy = 16;
  for (y = 0; y < 16; y++)
    for (x = 0; x < 16; x++)
      lumMotionBlock[y][x] = prev[y + fy][x + fx];
  for (y = 0; y < 16; y++)
    for (x = 0; x < 16; x++) {
      localDiff = ((lumMotionBlock[y][x] + blockSoFar[y][x] + 1) >> 1) - currentBlock[y][x];
      diff += (((localDiff) < 0) ? -(localDiff) : (localDiff));
    }
  checksum = diff;
  if (checksum == 6016) {
    return 0xbadbeef;
  } else {
    return 0xbad;
  }
}
```