user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<calculate>:
  endbr64
  push   %r15
  mov    %ecx,%eax
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x208,%rsp
  or     %r8d,%eax
  mov    %rdx,0x98(%rsp)
  movl   $0x0,0x138(%rsp)
  js     L231
  cmp    %ecx,%edi
  jle    L231
  cmp    %r8d,%esi
  jle    L231
  movslq %esi,%rax
  mov    %rdx,%rbx
  movslq %ecx,%rdx
  movslq %r8d,%r10
  mov    %rax,%r9
  imul   %rdx,%r9
  lea    (%rbx,%r9,4),%r9
  mov    (%r9,%r10,4),%r13d
  test   %r13d,%r13d
  jne    L231
  lea    -0x10(,%rdx,4),%rdx
  movl   $0xffffffff,(%r9,%r10,4)
  mov    %rax,%r9
  lea    0x0(,%rax,4),%r11
  imul   %rdx,%r9
  lea    -0x1(%rcx),%r10d
  add    $0x2,%ecx
  movl   $0x1,0x138(%rsp)
  mov    %ecx,0x1e0(%rsp)
  mov    %r10d,0xe8(%rsp)
  add    %rbx,%r9
  mov    %r9,0x130(%rsp)
  lea    -0x4(%rdx),%r9
  imul   %rax,%r9
  add    %rbx,%r9
  mov    %r9,0x198(%rsp)
  lea    -0x8(%rdx),%r9
  imul   %rax,%r9
  add    %rbx,%r9
  mov    %r9,0x1a0(%rsp)
  lea    -0xc(%rdx),%r9
  sub    $0x10,%rdx
  imul   %rax,%rdx
  imul   %rax,%r9
  add    %rbx,%rdx
  mov    %rdx,0x1b0(%rsp)
  lea    (%rax,%rax,2),%rdx
  shl    $0x3,%rax
  add    %rbx,%r9
  mov    %rax,0x188(%rsp)
  lea    -0x1(%r8),%eax
  lea    0x0(,%rdx,4),%rcx
  mov    %eax,0x1e8(%rsp)
  lea    0x2(%r8),%eax
  mov    %r9,0x1a8(%rsp)
  mov    %rcx,0x1d8(%rsp)
  mov    %eax,0x1ec(%rsp)
L247:
  mov    0xe8(%rsp),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  cmp    %edi,%edx
  setge  %dl
  or     %eax,%edx
  mov    0x130(%rsp),%rax
  add    0x1d8(%rsp),%rax
  mov    %rax,0x1b8(%rsp)
  mov    0x1e8(%rsp),%eax
  mov    %dl,0x1d6(%rsp)
  mov    %eax,0xfc(%rsp)
L256:
  cmpb   $0x0,0x1d6(%rsp)
  jne    L519
  mov    0xfc(%rsp),%edx
  test   %edx,%edx
  js     L519
  cmp    %esi,%edx
  jge    L519
  mov    0x1b8(%rsp),%rcx
  movslq %edx,%rax
  mov    (%rcx,%rax,4),%r12d
  test   %r12d,%r12d
  jne    L519
  movl   $0xffffffff,(%rcx,%rax,4)
  mov    0xe8(%rsp),%eax
  movl   $0x1,0x13c(%rsp)
  lea    -0x1(%rax),%ecx
  add    $0x2,%eax
  mov    %ecx,0xe4(%rsp)
  mov    0x1b0(%rsp),%rcx
  mov    %eax,0x1e4(%rsp)
  lea    -0x1(%rdx),%eax
  mov    %rcx,0x180(%rsp)
  mov    0x1a8(%rsp),%rcx
  mov    %eax,0x1f4(%rsp)
  mov    %rcx,0x178(%rsp)
  mov    0x1a0(%rsp),%rcx
  mov    %rcx,0x170(%rsp)
  mov    0x198(%rsp),%rcx
  mov    %rcx,0x168(%rsp)
  mov    0x130(%rsp),%rcx
  mov    %rcx,0x128(%rsp)
  lea    0x2(%rdx),%ecx
  mov    %ecx,0x1f8(%rsp)
L29:
  mov    0xe4(%rsp),%ecx
  mov    %ecx,%eax
  shr    $0x1f,%eax
  cmp    %ecx,%edi
  setle  %dl
  or     %eax,%edx
  mov    0x128(%rsp),%rax
  add    0x188(%rsp),%rax
  mov    %rax,0x190(%rsp)
  mov    0x1f4(%rsp),%eax
  mov    %dl,0x1d7(%rsp)
  mov    %eax,0xf8(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0x1fc(%rsp)
L102:
  cmpb   $0x0,0x1d7(%rsp)
  jne    L365
  mov    0xf8(%rsp),%ecx
  test   %ecx,%ecx
  js     L365
  cmp    %ecx,%esi
  jle    L365
  mov    0x190(%rsp),%rdx
  movslq %ecx,%rax
  mov    (%rdx,%rax,4),%ebp
  test   %ebp,%ebp
  jne    L365
  movl   $0xffffffff,(%rdx,%rax,4)
  mov    0xe4(%rsp),%eax
  movl   $0x1,0x140(%rsp)
  sub    $0x1,%eax
  mov    %eax,0xe0(%rsp)
  mov    0x180(%rsp),%rax
  mov    %rax,0x160(%rsp)
  mov    0x178(%rsp),%rax
  mov    %rax,0x158(%rsp)
  mov    0x170(%rsp),%rax
  mov    %rax,0x150(%rsp)
  mov    0x168(%rsp),%rax
  mov    %rax,0x148(%rsp)
  mov    0x128(%rsp),%rax
  mov    %rax,0x120(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0x1c4(%rsp)
  lea    -0x1(%rcx),%eax
  mov    %eax,0x1f0(%rsp)
L252:
  mov    0xe0(%rsp),%ecx
  mov    %ecx,%eax
  shr    $0x1f,%eax
  cmp    %ecx,%edi
  setle  %dl
  or     %eax,%edx
  mov    0x120(%rsp),%rax
  mov    %dl,0x1d5(%rsp)
  mov    %rax,0x1c8(%rsp)
  add    %r11,%rax
  mov    %rax,0x120(%rsp)
  mov    0x1f0(%rsp),%eax
  mov    %eax,0xd0(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0x1d0(%rsp)
L234:
  cmpb   $0x0,0x1d5(%rsp)
  jne    L516
  mov    0xd0(%rsp),%edx
  test   %edx,%edx
  js     L516
  cmp    %edx,%esi
  jle    L516
  mov    0x120(%rsp),%rcx
  movslq %edx,%rax
  mov    (%rcx,%rax,4),%ebx
  test   %ebx,%ebx
  jne    L516
  movl   $0xffffffff,(%rcx,%rax,4)
  mov    0xe0(%rsp),%eax
  movl   $0x1,0x144(%rsp)
  sub    $0x1,%eax
  mov    %eax,0xcc(%rsp)
  mov    0x160(%rsp),%rax
  mov    %rax,0x118(%rsp)
  mov    0x158(%rsp),%rax
  mov    %rax,0x110(%rsp)
  mov    0x150(%rsp),%rax
  mov    %rax,0x108(%rsp)
  mov    0x148(%rsp),%rax
  mov    %rax,0x100(%rsp)
  mov    0x1c8(%rsp),%rax
  mov    %rax,0xf0(%rsp)
  lea    0x2(%rdx),%eax
  mov    %eax,0xd4(%rsp)
  lea    -0x1(%rdx),%eax
  mov    %eax,0x1c0(%rsp)
L368:
  mov    0xcc(%rsp),%ecx
  mov    %ecx,%eax
  shr    $0x1f,%eax
  cmp    %ecx,%edi
  setle  %dl
  or     %eax,%edx
  mov    0x1c0(%rsp),%eax
  mov    %dl,0x1d4(%rsp)
  mov    %eax,0x88(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0xd8(%rsp)
L165:
  cmpb   $0x0,0x1d4(%rsp)
  jne    L189
  mov    0x88(%rsp),%edx
  test   %edx,%edx
  js     L189
  cmp    %edx,%esi
  jle    L189
  mov    0xf0(%rsp),%rcx
  movslq %edx,%rax
  mov    (%rcx,%rax,4),%r10d
  test   %r10d,%r10d
  jne    L189
  movl   $0xffffffff,(%rcx,%rax,4)
  mov    0xcc(%rsp),%eax
  movl   $0x1,0xdc(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x84(%rsp)
  mov    0x118(%rsp),%rax
  mov    %rax,0xb0(%rsp)
  mov    0x110(%rsp),%rax
  mov    %rax,0xb8(%rsp)
  mov    0x108(%rsp),%rax
  mov    %rax,0xc0(%rsp)
  mov    0x100(%rsp),%rax
  mov    %rax,0xa8(%rsp)
  lea    0x2(%rdx),%eax
  mov    %eax,0xc8(%rsp)
  lea    -0x1(%rdx),%eax
  mov    %eax,0xec(%rsp)
L258:
  mov    0x84(%rsp),%ecx
  mov    %ecx,%eax
  shr    $0x1f,%eax
  cmp    %ecx,%edi
  setle  %dl
  or     %eax,%edx
  mov    0xec(%rsp),%eax
  mov    %dl,0x93(%rsp)
  mov    %eax,0x34(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0xa0(%rsp)
L517:
  cmpb   $0x0,0x93(%rsp)
  jne    L469
  mov    0x34(%rsp),%ecx
  test   %ecx,%ecx
  js     L469
  cmp    %ecx,%esi
  jle    L469
  mov    0xa8(%rsp),%rdx
  movslq %ecx,%rax
  mov    (%rdx,%rax,4),%r9d
  test   %r9d,%r9d
  jne    L469
  movl   $0xffffffff,(%rdx,%rax,4)
  mov    0x84(%rsp),%eax
  mov    %r11,%r15
  movl   $0x1,0x94(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x24(%rsp)
  mov    0xb0(%rsp),%rax
  mov    %rax,0x70(%rsp)
  mov    0xb8(%rsp),%rax
  mov    %rax,0x78(%rsp)
  mov    0xc0(%rsp),%rax
  mov    %rax,0x68(%rsp)
  lea    0x2(%rcx),%eax
  mov    %eax,0x5c(%rsp)
  lea    -0x1(%rcx),%eax
  mov    %eax,0xa4(%rsp)
L180:
  mov    0x24(%rsp),%ecx
  mov    0xa4(%rsp),%r11d
  mov    %r15,(%rsp)
  mov    %edi,%r13d
  mov    %ecx,%eax
  mov    %r11d,%r15d
  shr    $0x1f,%eax
  cmp    %ecx,%edi
  setle  %dl
  or     %eax,%edx
  lea    0x2(%rcx),%eax
  mov    %dl,0x92(%rsp)
  mov    %eax,0x54(%rsp)
L478:
  cmpb   $0x0,0x92(%rsp)
  jne    L286
  test   %r15d,%r15d
  js     L286
  cmp    %r15d,%esi
  jle    L286
  mov    0x68(%rsp),%rdi
  movslq %r15d,%rax
  mov    (%rdi,%rax,4),%r8d
  test   %r8d,%r8d
  jne    L286
  movl   $0xffffffff,(%rdi,%rax,4)
  mov    0x24(%rsp),%eax
  mov    %esi,%r12d
  mov    0x78(%rsp),%r11
  movl   $0x1,0x50(%rsp)
  lea    -0x1(%rax),%r14d
  mov    0x70(%rsp),%rax
  mov    %r15d,0x8c(%rsp)
  mov    %rax,0x18(%rsp)
  lea    0x2(%r15),%eax
  mov    %eax,0x4c(%rsp)
  lea    -0x1(%r15),%eax
  mov    %r14d,%r15d
  mov    %r11,%r14
  mov    %eax,0x58(%rsp)
L533:
  mov    %r15d,%eax
  mov    0x58(%rsp),%r11d
  mov    %r12d,%esi
  mov    %r14,%r12
  shr    $0x1f,%eax
  cmp    %r15d,%r13d
  mov    %r13d,%r14d
  setle  %dl
  mov    %r11d,%ebx
  or     %eax,%edx
  lea    0x2(%r15),%eax
  mov    %dl,0x90(%rsp)
  mov    %eax,0x28(%rsp)
L63:
  cmpb   $0x0,0x90(%rsp)
  jne    L280
  test   %ebx,%ebx
  js     L280
  cmp    %ebx,%esi
  jle    L280
  movslq %ebx,%rax
  mov    (%r12,%rax,4),%ecx
  test   %ecx,%ecx
  jne    L280
  mov    0x18(%rsp),%r11
  mov    %r12,0x38(%rsp)
  lea    -0x1(%r15),%r10d
  movl   $0xffffffff,(%r12,%rax,4)
  lea    0x2(%rbx),%eax
  mov    %r10d,%r13d
  mov    %eax,0x30(%rsp)
  lea    -0x1(%rbx),%eax
  movl   $0x1,0x10(%rsp)
  mov    %eax,0x40(%rsp)
  mov    %ebx,0x48(%rsp)
  mov    %r15d,0x44(%rsp)
  mov    %r14d,%r15d
  mov    %r11,%r14
L321:
  mov    %r13d,%eax
  mov    0x40(%rsp),%ebx
  mov    %r13d,0x14(%rsp)
  shr    $0x1f,%eax
  cmp    %r13d,%r15d
  setle  %dl
  or     %eax,%edx
  lea    0x2(%r13),%eax
  mov    %r15d,%r13d
  mov    %esi,%r15d
  mov    %dl,0x91(%rsp)
  mov    %eax,0xc(%rsp)
L407:
  cmpb   $0x0,0x91(%rsp)
  jne    L518
  test   %ebx,%ebx
  js     L518
  cmp    %ebx,%r15d
  jle    L518
  movslq %ebx,%rax
  mov    (%r14,%rax,4),%edx
  test   %edx,%edx
  jne    L518
  movl   $0xffffffff,(%r14,%rax,4)
  mov    0x14(%rsp),%eax
  mov    $0x1,%r9d
  mov    %ebx,0x80(%rsp)
  lea    -0x1(%rax),%r12d
  lea    0x2(%rbx),%eax
  mov    %r14,0x60(%rsp)
  mov    %r13d,%r14d
  mov    %eax,0x2c(%rsp)
  lea    -0x1(%rbx),%eax
  mov    0x98(%rsp),%rbx
  mov    %r9d,%r13d
  mov    %eax,0x20(%rsp)
L35:
  mov    0x20(%rsp),%ebp
L23:
  mov    %ebp,%r8d
  mov    %r12d,%ecx
  mov    %rbx,%rdx
  mov    %r15d,%esi
  mov    %r14d,%edi
  add    $0x1,%ebp
  call   <calculate>
  add    %eax,%r13d
  cmp    %ebp,0x2c(%rsp)
  jne    L23
  add    $0x1,%r12d
  cmp    %r12d,0xc(%rsp)
  jne    L35
  mov    %r13d,%r9d
  add    %r9d,0x10(%rsp)
  mov    %r14d,%r13d
  mov    0x80(%rsp),%ebx
  mov    0x60(%rsp),%r14
L518:
  add    $0x1,%ebx
  cmp    %ebx,0x30(%rsp)
  jne    L407
  mov    %r15d,%esi
  mov    %r13d,%r15d
  mov    0x14(%rsp),%r13d
  add    (%rsp),%r14
  add    $0x1,%r13d
  cmp    %r13d,0x28(%rsp)
  jne    L321
  mov    0x10(%rsp),%edi
  add    %edi,0x50(%rsp)
  mov    %r15d,%r14d
  mov    0x38(%rsp),%r12
  mov    0x48(%rsp),%ebx
  mov    0x44(%rsp),%r15d
L280:
  add    $0x1,%ebx
  cmp    %ebx,0x4c(%rsp)
  jne    L63
  mov    (%rsp),%rcx
  mov    %r14d,%r13d
  mov    %r12,%r14
  add    %rcx,0x18(%rsp)
  mov    %esi,%r12d
  add    $0x1,%r15d
  add    %rcx,%r14
  cmp    %r15d,0x54(%rsp)
  jne    L533
  mov    0x50(%rsp),%edi
  add    %edi,0x94(%rsp)
  mov    0x8c(%rsp),%r15d
L286:
  add    $0x1,%r15d
  cmp    %r15d,0x5c(%rsp)
  jne    L478
  mov    (%rsp),%r15
  addl   $0x1,0x24(%rsp)
  mov    %r13d,%edi
  add    %r15,0x68(%rsp)
  mov    0x24(%rsp),%eax
  add    %r15,0x78(%rsp)
  add    %r15,0x70(%rsp)
  cmp    %eax,0xa0(%rsp)
  jne    L180
  mov    0x94(%rsp),%edx
  add    %edx,0xdc(%rsp)
  mov    %r15,%r11
L469:
  addl   $0x1,0x34(%rsp)
  mov    0x34(%rsp),%eax
  cmp    0xc8(%rsp),%eax
  jne    L517
  addl   $0x1,0x84(%rsp)
  mov    0x84(%rsp),%eax
  add    %r11,0xa8(%rsp)
  add    %r11,0xc0(%rsp)
  add    %r11,0xb8(%rsp)
  add    %r11,0xb0(%rsp)
  cmp    0xd8(%rsp),%eax
  jne    L258
  mov    0xdc(%rsp),%edx
  add    %edx,0x144(%rsp)
L189:
  addl   $0x1,0x88(%rsp)
  mov    0x88(%rsp),%eax
  cmp    0xd4(%rsp),%eax
  jne    L165
  addl   $0x1,0xcc(%rsp)
  mov    0xcc(%rsp),%eax
  add    %r11,0xf0(%rsp)
  add    %r11,0x100(%rsp)
  add    %r11,0x108(%rsp)
  add    %r11,0x110(%rsp)
  add    %r11,0x118(%rsp)
  cmp    0x1d0(%rsp),%eax
  jne    L368
  mov    0x144(%rsp),%edx
  add    %edx,0x140(%rsp)
L516:
  addl   $0x1,0xd0(%rsp)
  mov    0xd0(%rsp),%eax
  cmp    0x1c4(%rsp),%eax
  jne    L234
  addl   $0x1,0xe0(%rsp)
  mov    0xe0(%rsp),%eax
  add    %r11,0x148(%rsp)
  add    %r11,0x150(%rsp)
  add    %r11,0x158(%rsp)
  add    %r11,0x160(%rsp)
  cmp    0x1fc(%rsp),%eax
  jne    L252
  mov    0x140(%rsp),%edx
  add    %edx,0x13c(%rsp)
L365:
  addl   $0x1,0xf8(%rsp)
  mov    0xf8(%rsp),%eax
  cmp    0x1f8(%rsp),%eax
  jne    L102
  mov    0x190(%rsp),%rcx
  addl   $0x1,0xe4(%rsp)
  add    %r11,0x168(%rsp)
  mov    0xe4(%rsp),%eax
  sub    %r11,%rcx
  add    %r11,0x170(%rsp)
  add    %r11,0x178(%rsp)
  add    %r11,0x180(%rsp)
  mov    %rcx,0x128(%rsp)
  cmp    0x1e4(%rsp),%eax
  jne    L29
  mov    0x13c(%rsp),%edx
  add    %edx,0x138(%rsp)
L519:
  addl   $0x1,0xfc(%rsp)
  mov    0xfc(%rsp),%eax
  cmp    0x1ec(%rsp),%eax
  jne    L256
  mov    0x1b8(%rsp),%rcx
  sub    0x188(%rsp),%rcx
  addl   $0x1,0xe8(%rsp)
  mov    0xe8(%rsp),%eax
  add    %r11,0x198(%rsp)
  add    %r11,0x1a0(%rsp)
  add    %r11,0x1a8(%rsp)
  add    %r11,0x1b0(%rsp)
  mov    %rcx,0x130(%rsp)
  cmp    0x1e0(%rsp),%eax
  jne    L247
L231:
  mov    0x138(%rsp),%eax
  add    $0x208,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int calculate(int len, int wid, int map[len][wid], int row, int col) {
  if (row < 0 || row >= len || col < 0 || col >= wid || map[row][col] != 0)
    return 0;
  map[row][col] = -1;
  int size = 1;
  for (int i = -1; i <= 1; i++) {
    for (int j = -1; j <= 1; j++) {
      size += calculate(len, wid, map, row + i, col + j);
    }
  }
  return size;
}
```