user: Please show me the C implementation that matches the assembly code listed below:

```asm
<binaryErosion>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,-0x30(%rsp)
  mov    %rdx,-0x18(%rsp)
  mov    %rcx,-0x28(%rsp)
  mov    %r8,-0x10(%rsp)
  mov    %r9,-0x8(%rsp)
  mov    (%r8),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    %eax,-0x20(%rsp)
  mov    (%r9),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  cmpl   $0x0,(%rsi)
  jle    L5
  mov    %rdi,%r14
  mov    %eax,%r13d
  mov    $0x0,%ecx
  mov    -0x18(%rsp),%rsi
  mov    0x38(%rsp),%rdi
  jmp    L262
L239:
  imul   %ecx,%eax
  add    %edx,%eax
  cltq
  movl   $0xff,(%rdi,%rax,4)
  add    $0x1,%edx
  mov    (%rsi),%eax
  cmp    %edx,%eax
  jg     L239
L115:
  add    $0x1,%ecx
  mov    -0x30(%rsp),%rax
  mov    (%rax),%eax
  cmp    %ecx,%eax
  jle    L53
L262:
  mov    (%rsi),%eax
  mov    $0x0,%edx
  test   %eax,%eax
  jg     L239
  jmp    L115
L53:
  test   %eax,%eax
  jle    L5
  movl   $0x0,-0x1c(%rsp)
  mov    $0xffffffff,%edi
  mov    $0x1,%r15d
  jmp    L166
L155:
  add    $0x1,%rdx
  cmp    %edx,%r9d
  jle    L10
L218:
  lea    (%r12,%rdx,1),%ecx
  lea    0x0(%rbp,%rdx,1),%eax
  cmp    %ecx,%r13d
  cmovg  %edi,%eax
  cmp    %r8d,%eax
  jge    L275
  cmp    $0xffffffff,%eax
  je     L17
  test   %r11b,%r11b
  je     L17
  add    %esi,%eax
  cltq
  mov    (%r14,%rax,4),%eax
  cmp    %eax,(%r10,%rdx,4)
  je     L155
  mov    %r15d,%eax
  jmp    L30
L10:
  mov    $0x0,%eax
  jmp    L30
L275:
  mov    %r15d,%eax
L30:
  add    $0x1,%ebx
  add    %r9d,-0x3c(%rsp)
  cmp    -0x38(%rsp),%ebx
  je     L29
L235:
  test   %eax,%eax
  jne    L30
  cmpb   $0x0,-0x31(%rsp)
  je     L30
  mov    -0x20(%rsp),%esi
  lea    (%rsi,%rbx,1),%eax
  cmp    %eax,%esi
  mov    %edi,%esi
  cmovle %ebx,%esi
  mov    -0x30(%rsp),%rax
  cmp    %esi,(%rax)
  cmovle %edi,%esi
  cmp    $0xffffffff,%esi
  setne  %r11b
  imul   %r8d,%esi
  movslq -0x3c(%rsp),%rax
  mov    -0x28(%rsp),%rcx
  lea    (%rcx,%rax,4),%r10
  mov    $0x0,%edx
  jmp    L218
L17:
  mov    %r15d,%eax
  jmp    L30
L29:
  test   %eax,%eax
  je     L78
L93:
  add    $0x1,%r12d
  mov    -0x18(%rsp),%rax
  mov    (%rax),%r8d
  add    $0x1,%ebp
  cmp    %r12d,%r8d
  jle    L54
L25:
  mov    -0x10(%rsp),%rax
  mov    (%rax),%eax
  test   %eax,%eax
  jle    L78
  mov    -0x8(%rsp),%rbx
  mov    (%rbx),%r9d
  test   %r9d,%r9d
  setg   -0x31(%rsp)
  mov    -0x1c(%rsp),%ecx
  mov    %ecx,%ebx
  mov    -0x20(%rsp),%esi
  sub    %esi,%ebx
  sub    %esi,%eax
  add    %ecx,%eax
  mov    %eax,-0x38(%rsp)
  movl   $0x0,-0x3c(%rsp)
  mov    $0x0,%eax
  jmp    L235
L78:
  imul   -0x1c(%rsp),%r8d
  lea    (%r8,%r12,1),%eax
  cltq
  mov    0x38(%rsp),%rbx
  movl   $0x0,(%rbx,%rax,4)
  jmp    L93
L54:
  addl   $0x1,-0x1c(%rsp)
  mov    -0x1c(%rsp),%eax
  mov    -0x30(%rsp),%rbx
  cmp    %eax,(%rbx)
  jle    L5
L166:
  mov    -0x18(%rsp),%rax
  mov    (%rax),%r8d
  test   %r8d,%r8d
  jle    L54
  mov    %r13d,%ebp
  neg    %ebp
  mov    $0x0,%r12d
  jmp    L25
L5:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void binaryErosion(int *image, int *width, int *height, int *mask, int *mask_width, int *mask_height, int *ret) {
  int x, y, i, j;
  int x_src = *mask_width / 2;
  int y_src = *mask_height / 2;
  for (x = 0; x < *width; x++) {
    for (y = 0; y < *height; y++) {
      ret[((*height) * (x) + (y) + (*width) * (*height) * (0))] = 255;
    }
  }
  for (x = 0; x < *width; x++) {
    for (y = 0; y < *height; y++) {
      int set = 0;
      for (i = 0; i < *mask_width; i++) {
        for (j = 0; j < *mask_height && !set; j++) {
          int x_pos, y_pos;
          x_pos = (x + i < x_src) ? -1 : x + i - x_src;
          x_pos = (x_pos > *width - 1) ? -1 : x_pos;
          y_pos = (y + j < y_src) ? -1 : y + j - y_src;
          y_pos = (y_pos > *height - 1) ? -1 : y_pos;
          if (x_pos != -1 && y_pos != -1) {
            if (mask[((*mask_height) * (i) + (j) + (*mask_width) * (*mask_height) * (0))] != image[((*height) * (x_pos) + (y_pos) + (*width) * (*height) * (0))]) {
              set = 1;
            }
          } else {
            set = 1;
          }
        }
      }
      if (!set) {
        ret[((*height) * (x) + (y) + (*width) * (*height) * (0))] = 0;
      }
    }
  }
}
```