user: 请将以下的汇编代码转换成C语言代码：

```asm
<erosion>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %r8,0x20(%rsp)
  test   %r8,%r8
  jle    L15
  mov    %rdi,%rbp
  mov    %rsi,%r12
  mov    %ecx,%r14d
  mov    %r9,%r13
  mov    %edx,%ebx
  test   %r9,%r9
  jle    L81
  mov    %r9,%r15
  mov    %r9,%rdi
  mov    %r9,%rax
  mov    %ecx,0x2c(%rsp)
  and    $0xfffffffffffffff8,%r15
  shr    $0x3,%rdi
  mov    %bx,0x2a(%rsp)
  xor    %esi,%esi
  sub    %r15,%rax
  shl    $0x4,%rdi
  lea    -0x1(%r9),%r11
  lea    (%r9,%r9,1),%r10
  mov    %rax,0x10(%rsp)
  sub    $0x1,%rax
  lea    0x0(,%r8,8),%rdx
  mov    %r15d,%r14d
  mov    %rax,0x18(%rsp)
  mov    %rdx,%rbx
  mov    %rdi,0x8(%rsp)
  nopl   0x0(%rax,%rax,1)
L164:
  mov    0x0(%rbp,%rsi,1),%rax
  mov    (%r12,%rsi,1),%rdx
  lea    0x2(%rax),%r8
  mov    %rdx,%rcx
  sub    %r8,%rcx
  cmp    $0xc,%rcx
  jbe    L69
  cmp    $0x2,%r11
  jbe    L69
  cmp    $0x6,%r11
  jbe    L95
  mov    0x8(%rsp),%rdi
  xor    %ecx,%ecx
L189:
  movdqu (%rax,%rcx,1),%xmm1
  movups %xmm1,(%rdx,%rcx,1)
  add    $0x10,%rcx
  cmp    %rcx,%rdi
  jne    L189
  mov    %rdi,0x8(%rsp)
  cmp    %r13,%r15
  je     L56
  cmpq   $0x2,0x18(%rsp)
  mov    0x10(%rsp),%r9
  mov    %r14d,%ecx
  jbe    L165
  mov    %r15,%r8
L175:
  movq   (%rax,%r8,2),%xmm0
  movq   %xmm0,(%rdx,%r8,2)
  mov    %r9,%r8
  and    $0xfffffffffffffffc,%r8
  add    %r8d,%ecx
  cmp    %r9,%r8
  je     L56
L165:
  movslq %ecx,%r9
  movzwl (%rax,%r9,2),%edi
  lea    (%r9,%r9,1),%r8
  mov    %di,(%rdx,%r9,2)
  lea    0x1(%rcx),%r9d
  movslq %r9d,%r9
  cmp    %r9,%r13
  jle    L56
  movzwl 0x2(%rax,%r8,1),%r9d
  add    $0x2,%ecx
  movslq %ecx,%rcx
  mov    %r9w,0x2(%rdx,%r8,1)
  cmp    %rcx,%r13
  jle    L56
  movzwl 0x4(%rax,%r8,1),%eax
  mov    %ax,0x4(%rdx,%r8,1)
L56:
  add    $0x8,%rsi
  cmp    %rbx,%rsi
  jne    L164
  movzwl 0x2a(%rsp),%ebx
  mov    0x2c(%rsp),%r14d
L81:
  mov    $0xa,%edi
  call   <putchar@plt>
  cmpq   $0x2,0x20(%rsp)
  jle    L55
  mov    0x20(%rsp),%r9
  lea    -0x2(%r13,%r13,1),%r8
  mov    %r13,%rax
  mov    $0x2,%r15d
  lea    D15(%rip),%rdi
  sub    $0x1,%r9
  mov    %r9,%r13
  mov    %r12,%r9
  mov    %rbp,%r12
  mov    %r8,%rbp
  mov    %rax,%r8
  nopl   0x0(%rax)
L80:
  cmp    $0x2,%r8
  jle    L247
  mov    -0x8(%r12,%r15,8),%rsi
  lea    (%r12,%r15,8),%r11
  mov    $0x2,%eax
  jmp    L213
  nopw   0x0(%rax,%rax,1)
L70:
  mov    %rcx,%rax
  cmp    %rcx,%rbp
  je     L247
L213:
  lea    0x2(%rax),%rcx
  cmp    %bx,(%rsi,%rax,1)
  jne    L70
  mov    -0x10(%r12,%r15,8),%r10
  xor    %edx,%edx
  cmpw   $0x0,-0x2(%r10,%rax,1)
  sete   %dl
  cmpw   $0x1,(%r10,%rax,1)
  adc    $0x0,%edx
  cmpw   $0x1,0x2(%r10,%rax,1)
  mov    (%r11),%r10
  adc    $0x0,%edx
  cmpw   $0x1,-0x2(%rsi,%rax,1)
  adc    $0x0,%edx
  cmp    $0x1,%bx
  adc    $0x0,%edx
  cmpw   $0x1,0x2(%rsi,%rax,1)
  adc    $0x0,%edx
  cmpw   $0x1,-0x2(%r10,%rax,1)
  adc    $0x0,%edx
  cmpw   $0x1,(%r10,%rax,1)
  adc    $0x0,%edx
  cmpw   $0x1,0x2(%r10,%rax,1)
  adc    $0x0,%edx
  cmp    %edx,%r14d
  jge    L70
  mov    -0x8(%r9,%r15,8),%rdx
  xor    %r10d,%r10d
  mov    %r10w,(%rdx,%rax,1)
  mov    %rcx,%rax
  cmp    %rcx,%rbp
  jne    L213
  nopl   0x0(%rax)
L247:
  mov    %r15d,%esi
  cmp    %r15,%r13
  je     L55
  imul   $0xcccccccd,%r15d,%eax
  ror    %eax
  cmp    $0x19999999,%eax
  ja     L172
  xor    %eax,%eax
  mov    %r8,0x10(%rsp)
  mov    %r9,0x8(%rsp)
  call   <printf@plt>
  mov    0x8(%rsp),%r9
  mov    0x10(%rsp),%r8
  lea    D15(%rip),%rdi
L172:
  add    $0x1,%r15
  jmp    L80
  nopl   0x0(%rax,%rax,1)
L69:
  mov    0x8(%rsp),%rdi
  xor    %ecx,%ecx
  nop
L206:
  movzwl (%rax,%rcx,1),%r8d
  mov    %r8w,(%rdx,%rcx,1)
  add    $0x2,%rcx
  cmp    %r10,%rcx
  jne    L206
  mov    %rdi,0x8(%rsp)
  jmp    L56
L15:
  mov    $0xa,%edi
  call   <putchar@plt>
L55:
  add    $0x38,%rsp
  mov    $0x1,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L95:
  mov    %r13,%r9
  xor    %ecx,%ecx
  xor    %r8d,%r8d
  jmp    L175
```

tool_calls: name: unpack_data
arguments: label: D15
data_type: string

tool: D15: %3d

assistant: ```c
int erosion(the_image, out_image, value, threshold, rows, cols)
int threshold;
short **the_image, **out_image, value;
long cols, rows;
{
  int a, b, count, i, j, k;
  for (i = 0; i < rows; i++)
    for (j = 0; j < cols; j++)
      out_image[i][j] = the_image[i][j];
  printf("\n");
  for (i = 1; i < rows - 1; i++) {
    if ((i % 10) == 0)
      printf("%3d", i);
    for (j = 1; j < cols - 1; j++) {
      if (the_image[i][j] == value) {
        count = 0;
        for (a = -1; a <= 1; a++) {
          for (b = -1; b <= 1; b++) {
            if ((i + a) >= 0) {
              if (the_image[i + a][j + b] == 0)
                count++;
            }
          }
        }
        if (count > threshold) {
          out_image[i][j] = 0;
        }
      }
    }
  }
  return (1);
}
```