user: 下面的汇编指令对应的C源代码是什么:

```asm
<trace>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    0x98(%rsp),%r14d
  mov    0x90(%rsp),%r13d
  imul   %r14d,%r13d
  mov    %r14d,%r15d
  imul   %esi,%r15d
  imul   %edx,%r13d
  lea    (%r15,%rdi,1),%ebx
  add    %r13d,%ebx
  movslq %ebx,%rbx
  lea    (%r8,%rbx,4),%rax
  mov    (%rax),%r10d
  test   %r10d,%r10d
  je     L53
  xor    %r10d,%r10d
L25:
  add    $0x58,%rsp
  mov    %r10d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L53:
  lea    -0x1(%rsi),%r10d
  mov    %esi,%r12d
  mov    %edi,%ebp
  movl   $0xff,(%rax)
  cmp    %r10d,0x90(%rsp)
  lea    0x1(%r12),%r11d
  mov    %r14d,%edi
  setg   %sil
  test   %r10d,%r10d
  setg   %al
  imul   %r10d,%edi
  and    %eax,%esi
  test   %r11d,%r11d
  mov    %sil,0x10(%rsp)
  setg   %sil
  cmp    %r11d,0x90(%rsp)
  setg   %al
  mov    %edi,0x14(%rsp)
  and    %eax,%esi
  lea    (%rdi,%r14,2),%eax
  lea    -0x1(%rbp),%edi
  mov    %sil,0xf(%rsp)
  mov    %eax,0x48(%rsp)
  test   %edi,%edi
  jle    L306
  cmp    %edi,%r14d
  jle    L306
  cmpb   $0x0,0x10(%rsp)
  jne    L146
L283:
  test   %ebp,%ebp
  je     L355
  test   %r12d,%r12d
  jle    L44
  cmp    0x90(%rsp),%r12d
  jge    L44
  lea    (%r15,%rdi,1),%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L44
  mov    %r10d,0x4c(%rsp)
  sub    $0x8,%rsp
  mov    %r12d,%esi
  mov    %r11d,0x48(%rsp)
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x58(%rsp)
  mov    %r8,0x50(%rsp)
  mov    %ecx,0x48(%rsp)
  mov    %edx,0x40(%rsp)
  mov    %edi,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%edi
  mov    0x20(%rsp),%edx
  test   %eax,%eax
  mov    0x28(%rsp),%ecx
  mov    0x30(%rsp),%r8
  mov    0x38(%rsp),%r9
  mov    0x40(%rsp),%r11d
  mov    0x4c(%rsp),%r10d
  jne    L251
  nopl   0x0(%rax)
L44:
  cmpb   $0x0,0xf(%rsp)
  jne    L436
L101:
  test   %ebp,%ebp
  jle    L251
L202:
  cmp    %ebp,%r14d
  jle    L355
  cmpb   $0x0,0x10(%rsp)
  jne    L190
L237:
  test   %r12d,%r12d
  jle    L113
  cmp    0x90(%rsp),%r12d
  jge    L113
  cmp    (%r9,%rbx,4),%ecx
  jg     L113
  mov    %r10d,0x40(%rsp)
  sub    $0x8,%rsp
  mov    %r12d,%esi
  mov    %ebp,%edi
  mov    %r11d,0x40(%rsp)
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x50(%rsp)
  mov    %r8,0x48(%rsp)
  mov    %ecx,0x40(%rsp)
  mov    %edx,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%edx
  mov    0x20(%rsp),%ecx
  test   %eax,%eax
  mov    0x28(%rsp),%r8
  mov    0x30(%rsp),%r9
  mov    0x38(%rsp),%r11d
  mov    0x40(%rsp),%r10d
  jne    L251
L113:
  cmpb   $0x0,0xf(%rsp)
  jne    L216
L355:
  lea    0x1(%rbp),%ebx
  cmp    %ebx,%r14d
  jle    L251
  cmpb   $0x0,0x10(%rsp)
  jne    L414
L335:
  test   %ebp,%ebp
  je     L186
  cmp    0x90(%rsp),%r12d
  jge    L186
  test   %r12d,%r12d
  jle    L186
  lea    (%r15,%rbx,1),%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L186
  mov    %r11d,0x28(%rsp)
  sub    $0x8,%rsp
  mov    %r12d,%esi
  mov    %ebx,%edi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x40(%rsp)
  mov    %r8,0x38(%rsp)
  mov    %ecx,0x34(%rsp)
  mov    %edx,0x30(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x10(%rsp),%edx
  mov    0x14(%rsp),%ecx
  test   %eax,%eax
  mov    0x18(%rsp),%r8
  mov    0x20(%rsp),%r9
  mov    0x28(%rsp),%r11d
  jne    L251
  nopw   0x0(%rax,%rax,1)
L186:
  cmpb   $0x0,0xf(%rsp)
  jne    L69
  nopl   0x0(%rax,%rax,1)
L251:
  mov    $0x1,%r10d
  jmp    L25
  nopl   0x0(%rax,%rax,1)
L306:
  test   %ebp,%ebp
  je     L355
  test   %ebp,%ebp
  jg     L202
  jmp    L251
L436:
  mov    0x48(%rsp),%eax
  add    %edi,%eax
  add    %r13d,%eax
  cltq
  cmp    %ecx,(%r9,%rax,4)
  jl     L101
  mov    %r10d,0x40(%rsp)
  sub    $0x8,%rsp
  mov    %r11d,%esi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x58(%rsp)
  mov    %r8,0x50(%rsp)
  mov    %ecx,0x48(%rsp)
  mov    %edx,0x40(%rsp)
  mov    %r11d,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%r11d
  mov    0x20(%rsp),%edx
  test   %eax,%eax
  mov    0x28(%rsp),%ecx
  mov    0x30(%rsp),%r8
  mov    0x38(%rsp),%r9
  mov    0x40(%rsp),%r10d
  je     L101
  jmp    L251
  xchg   %ax,%ax
L146:
  mov    0x14(%rsp),%eax
  add    %edi,%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L283
  mov    %r11d,0x4c(%rsp)
  sub    $0x8,%rsp
  mov    %r10d,%esi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x60(%rsp)
  mov    %r8,0x58(%rsp)
  mov    %ecx,0x50(%rsp)
  mov    %edx,0x48(%rsp)
  mov    %r10d,0x40(%rsp)
  mov    %edi,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%edi
  mov    0x20(%rsp),%r10d
  test   %eax,%eax
  mov    0x28(%rsp),%edx
  mov    0x30(%rsp),%ecx
  mov    0x38(%rsp),%r8
  mov    0x40(%rsp),%r9
  mov    0x4c(%rsp),%r11d
  je     L283
  jmp    L251
  nopl   0x0(%rax)
L190:
  mov    0x14(%rsp),%eax
  add    %ebp,%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L237
  mov    %r11d,0x40(%rsp)
  sub    $0x8,%rsp
  mov    %r10d,%esi
  mov    %ebp,%edi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x58(%rsp)
  mov    %r8,0x50(%rsp)
  mov    %ecx,0x48(%rsp)
  mov    %edx,0x40(%rsp)
  mov    %r10d,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%r10d
  mov    0x20(%rsp),%edx
  test   %eax,%eax
  mov    0x28(%rsp),%ecx
  mov    0x30(%rsp),%r8
  mov    0x38(%rsp),%r9
  mov    0x40(%rsp),%r11d
  je     L237
  jmp    L251
  cs nopw 0x0(%rax,%rax,1)
L216:
  mov    0x48(%rsp),%eax
  add    %ebp,%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L355
  mov    %r10d,0x40(%rsp)
  sub    $0x8,%rsp
  mov    %r11d,%esi
  mov    %ebp,%edi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x58(%rsp)
  mov    %r8,0x50(%rsp)
  mov    %ecx,0x48(%rsp)
  mov    %edx,0x40(%rsp)
  mov    %r11d,0x38(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x18(%rsp),%r11d
  mov    0x20(%rsp),%edx
  test   %eax,%eax
  mov    0x28(%rsp),%ecx
  mov    0x30(%rsp),%r8
  mov    0x38(%rsp),%r9
  mov    0x40(%rsp),%r10d
  je     L355
  jmp    L251
  xchg   %ax,%ax
L414:
  mov    0x14(%rsp),%eax
  add    %ebx,%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L335
  mov    %r11d,0x28(%rsp)
  sub    $0x8,%rsp
  mov    %r10d,%esi
  mov    %ebx,%edi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    %r9,0x40(%rsp)
  mov    %r8,0x38(%rsp)
  mov    %ecx,0x34(%rsp)
  mov    %edx,0x30(%rsp)
  call   <trace>
  add    $0x20,%rsp
  mov    0x10(%rsp),%edx
  mov    0x14(%rsp),%ecx
  test   %eax,%eax
  mov    0x18(%rsp),%r8
  mov    0x20(%rsp),%r9
  mov    0x28(%rsp),%r11d
  je     L335
  jmp    L251
  nopl   0x0(%rax)
L69:
  mov    0x48(%rsp),%eax
  add    %ebx,%eax
  add    %r13d,%eax
  cltq
  cmp    (%r9,%rax,4),%ecx
  jg     L251
  sub    $0x8,%rsp
  mov    %r11d,%esi
  mov    %ebx,%edi
  mov    0xa8(%rsp),%eax
  push   %rax
  push   %r14
  mov    0xa8(%rsp),%eax
  push   %rax
  call   <trace>
  add    $0x20,%rsp
  jmp    L251
```

assistant: ```c
int trace(int i, int j, int d, int low, int *image, int *mag, int width, int height, int depth) {
  int n, m;
  char flag = 0;
  if (image[((height) * (j) + (i) + (width) * (height) * (d))] == 0) {
    image[((height) * (j) + (i) + (width) * (height) * (d))] = 255;
    flag = 0;
    for (n = -1; n <= 1; n++) {
      for (m = -1; m <= 1; m++) {
        if (i == 0 && m == 0)
          continue;
        if (i + n > 0 && i + n < height && j + m > 0 && j + m < width && mag[((height) * (j + m) + (i + n) + (width) * (height) * (d))] >= low) {
          if (trace(i + n, j + m, d, low, image, mag, width, height, depth)) {
            flag = 1;
            break;
          }
        }
      }
      if (flag)
        break;
    }
    return 1;
  }
  return 0;
}
```