user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<edge_gray_shade_region>:
  endbr64
  push   %r15
  pxor   %xmm1,%xmm1
  mov    %rdx,%r15
  mov    %ecx,%edx
  push   %r14
  cvtsd2ss %xmm0,%xmm1
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  sub    $0x858,%rsp
  mov    0x890(%rsp),%eax
  mov    %rdi,0x8(%rsp)
  mov    %r8d,0x10(%rsp)
  mov    0x898(%rsp),%ebx
  mov    %eax,0x18(%rsp)
  mov    0x8a0(%rsp),%eax
  mov    %r9d,0x14(%rsp)
  mov    0x8a8(%rsp),%r14
  mov    %ebx,%ebp
  mov    %eax,0x4(%rsp)
  mov    0x8b0(%rsp),%r13
  movss  %xmm1,0x1c(%rsp)
  mov    0x8b8(%rsp),%r10
  mov    %fs:0x28,%rax
  mov    %rax,0x848(%rsp)
  xor    %eax,%eax
  lea    -0x1(%rcx),%eax
  cmp    $0x2,%eax
  jbe    L90
  cmp    $0x4,%ecx
  je     L270
  cmp    $0x5,%ecx
  je     L241
  cmp    $0x6,%ecx
  jne    L243
  sub    $0x8,%rsp
  xor    %r9d,%r9d
  mov    %r10,%r8
  mov    %r13,%rcx
  push   $0x0
  mov    %r14,%rdx
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <difference_edge@plt>
  pop    %r9
  pop    %r10
  xchg   %ax,%ax
L37:
  movswl %bx,%eax
  mov    %eax,(%rsp)
  test   %r14,%r14
  jle    L111
L175:
  lea    0x0(,%r14,8),%r11
  lea    0x0(%r13,%r13,1),%rbx
  xor    %edi,%edi
  xchg   %ax,%ax
L147:
  test   %r13,%r13
  jle    L198
  mov    (%r15,%rdi,1),%rsi
  mov    (%r12,%rdi,1),%rcx
  xor    %eax,%eax
  nop
L156:
  movzwl (%rsi,%rax,1),%edx
  mov    %dx,(%rcx,%rax,1)
  add    $0x2,%rax
  cmp    %rax,%rbx
  jne    L156
L198:
  add    $0x8,%rdi
  cmp    %r11,%rdi
  jne    L147
  lea    0x40(%rsp),%r8
  mov    $0x100,%esi
  xor    %eax,%eax
  mov    %r11,0x28(%rsp)
  mov    %r8,%rdi
  mov    %r8,0x20(%rsp)
  call   <zero_histogram@plt>
  mov    0x20(%rsp),%rsi
  mov    %r13,%rcx
  mov    %r14,%rdx
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <calculate_histogram@plt>
  mov    0x20(%rsp),%rdi
  mov    %r13,%rcx
  mov    %r14,%rdx
  lea    0x3e(%rsp),%rsi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x1c(%rsp),%xmm0
  call   <find_cutoff_point@plt>
  mov    %r15,%rsi
  xor    %eax,%eax
  movswl 0x3e(%rsp),%ecx
  sub    $0x8,%rsp
  mov    %r14,%r9
  mov    %r12,%rdi
  push   %r13
  mov    0x10(%rsp),%r8d
  mov    $0xff,%edx
  call   <threshold_image_array@plt>
  pop    %rcx
  pop    %rsi
  cmpw   $0x0,0x4(%rsp)
  mov    0x28(%rsp),%r11
  je     L97
  xor    %edi,%edi
  nopw   0x0(%rax,%rax,1)
L69:
  test   %r13,%r13
  jle    L38
  mov    (%r15,%rdi,1),%rsi
  mov    (%r12,%rdi,1),%rcx
  xor    %eax,%eax
  nop
L45:
  movzwl (%rsi,%rax,1),%edx
  mov    %dx,(%rcx,%rax,1)
  add    $0x2,%rax
  cmp    %rax,%rbx
  jne    L45
L38:
  add    $0x8,%rdi
  cmp    %r11,%rdi
  jne    L69
  movswl 0x4(%rsp),%ecx
  mov    (%rsp),%edx
  mov    %r13,%r9
  mov    %r14,%r8
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <erode_image_array@plt>
L97:
  mov    0x8(%rsp),%rdi
  mov    %r12,%rsi
  xor    %eax,%eax
  call   <read_image_array@plt>
  lea    0x0(,%r14,8),%r8
  lea    0x0(%r13,%r13,1),%rcx
  xor    %esi,%esi
  nopl   0x0(%rax,%rax,1)
L78:
  test   %r13,%r13
  jle    L232
  mov    (%r15,%rsi,1),%rdx
  xor    %eax,%eax
  nopl   0x0(%rax,%rax,1)
L280:
  cmp    %bp,(%rdx,%rax,1)
  jne    L252
  mov    (%r12,%rsi,1),%rdi
  mov    $0xffffffce,%r9d
  mov    %r9w,(%rdi,%rax,1)
L252:
  add    $0x2,%rax
  cmp    %rax,%rcx
  jne    L280
L232:
  add    $0x8,%rsi
  cmp    %rsi,%r8
  jne    L78
L71:
  movswl 0x10(%rsp),%ecx
  movswl 0x18(%rsp),%edx
  sub    $0x8,%rsp
  xor    %eax,%eax
  push   %r13
  movswl 0x24(%rsp),%r8d
  mov    %r12,%rdi
  mov    %r14,%r9
  mov    %r15,%rsi
  call   <pixel_grow@plt>
  pop    %rdi
  pop    %r8
  mov    0x848(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L287
  add    $0x858,%rsp
  mov    $0x1,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L270:
  sub    $0x8,%rsp
  xor    %edx,%edx
  mov    %r13,%r9
  mov    %r14,%r8
  push   %r10
  xor    %ecx,%ecx
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <quick_edge@plt>
  pop    %rax
  movswl %bx,%eax
  pop    %rdx
  mov    %eax,(%rsp)
  test   %r14,%r14
  jg     L175
L111:
  lea    0x40(%rsp),%rbp
  mov    $0x100,%esi
  xor    %eax,%eax
  mov    %rbp,%rdi
  call   <zero_histogram@plt>
  mov    %r13,%rcx
  mov    %r14,%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <calculate_histogram@plt>
  lea    0x3e(%rsp),%rsi
  mov    %r13,%rcx
  mov    %r14,%rdx
  mov    %rbp,%rdi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x1c(%rsp),%xmm0
  call   <find_cutoff_point@plt>
  xor    %eax,%eax
  mov    %r14,%r9
  movswl 0x3e(%rsp),%ecx
  sub    $0x8,%rsp
  mov    %r15,%rsi
  mov    %r12,%rdi
  push   %r13
  mov    0x10(%rsp),%r8d
  mov    $0xff,%edx
  call   <threshold_image_array@plt>
  pop    %rax
  pop    %rdx
  cmpw   $0x0,0x4(%rsp)
  je     L43
  movswl 0x4(%rsp),%ecx
  mov    (%rsp),%edx
  mov    %r13,%r9
  mov    %r14,%r8
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <erode_image_array@plt>
L43:
  mov    0x8(%rsp),%rdi
  mov    %r12,%rsi
  xor    %eax,%eax
  call   <read_image_array@plt>
  jmp    L71
L90:
  push   %r10
  xor    %ecx,%ecx
  mov    %r15,%rsi
  mov    %r14,%r9
  push   %r13
  xor    %r8d,%r8d
  mov    %r12,%rdi
  xor    %eax,%eax
  mov    %edx,0x10(%rsp)
  call   <detect_edges@plt>
  pop    %rcx
  pop    %rsi
  mov    (%rsp),%edx
  mov    0x8b8(%rsp),%r10
L151:
  cmp    $0x8,%edx
  jne    L137
  push   $0x0
  mov    %r13,%rcx
  mov    %r15,%rsi
  mov    $0x3,%r9d
  push   $0x0
  mov    %r10,%r8
  mov    %r14,%rdx
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <gaussian_edge@plt>
  pop    %rcx
  pop    %rsi
  jmp    L37
L137:
  cmp    $0xa,%edx
  jne    L196
  push   $0x0
  mov    %r14,%rdx
  mov    $0x3,%r9d
  mov    %r10,%r8
  push   $0x0
  mov    %r13,%rcx
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <range@plt>
  pop    %rax
  pop    %rdx
  jmp    L37
L196:
  cmp    $0xb,%edx
  jne    L37
  sub    $0x8,%rsp
  mov    %r10,%r8
  xor    %r9d,%r9d
  mov    %r13,%rcx
  push   $0x0
  mov    %r14,%rdx
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <variance@plt>
  pop    %r10
  pop    %r11
  jmp    L37
L243:
  cmp    $0x7,%ecx
  jne    L151
  sub    $0x8,%rsp
  mov    %r10,%r8
  mov    %r12,%rdi
  xor    %r9d,%r9d
  push   $0x0
  mov    %r13,%rcx
  mov    %r14,%rdx
  mov    %r15,%rsi
  xor    %eax,%eax
  call   <contrast_edge@plt>
  pop    %rdi
  pop    %r8
  jmp    L37
L241:
  sub    $0x8,%rsp
  xor    %r9d,%r9d
  mov    %r10,%r8
  mov    %r13,%rcx
  push   $0x0
  mov    %r14,%rdx
  mov    %r15,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <homogeneity@plt>
  pop    %r11
  pop    %rax
  jmp    L37
L287:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int edge_gray_shade_region(in_name, the_image, out_image, edge_type, min_area, max_area, diff, percent, set_value, erode, rows, cols, bits_per_pixel)
char in_name[];
float percent;
int edge_type;
long bits_per_pixel, cols, rows;
short diff, erode, max_area, min_area, set_value, **the_image, **out_image;
{
  int a, b, count, i, j, k, length, width;
  short cutoff;
  unsigned long histogram[255 + 1];
  if (edge_type == 1 || edge_type == 2 || edge_type == 3)
    detect_edges(the_image, out_image, edge_type, 0, 0, rows, cols, bits_per_pixel);
  if (edge_type == 4) {
    quick_edge(the_image, out_image, 0, 0, rows, cols, bits_per_pixel);
  }
  if (edge_type == 5) {
    homogeneity(the_image, out_image, rows, cols, bits_per_pixel, 0, 0);
  }
  if (edge_type == 6) {
    difference_edge(the_image, out_image, rows, cols, bits_per_pixel, 0, 0);
  }
  if (edge_type == 7) {
    contrast_edge(the_image, out_image, rows, cols, bits_per_pixel, 0, 0);
  }
  if (edge_type == 8) {
    gaussian_edge(the_image, out_image, rows, cols, bits_per_pixel, 3, 0, 0);
  }
  if (edge_type == 10) {
    range(the_image, out_image, rows, cols, bits_per_pixel, 3, 0, 0);
  }
  if (edge_type == 11) {
    variance(the_image, out_image, rows, cols, bits_per_pixel, 0, 0);
  }
  for (i = 0; i < rows; i++)
    for (j = 0; j < cols; j++)
      the_image[i][j] = out_image[i][j];
  zero_histogram(histogram, 255 + 1);
  calculate_histogram(the_image, histogram, rows, cols);
  find_cutoff_point(histogram, percent, &cutoff, rows, cols);
  threshold_image_array(the_image, out_image, 255, cutoff, set_value, rows, cols);
  if (erode != 0) {
    for (i = 0; i < rows; i++)
      for (j = 0; j < cols; j++)
        the_image[i][j] = out_image[i][j];
    erode_image_array(the_image, out_image, set_value, erode, rows, cols);
  }
  read_image_array(in_name, the_image);
  for (i = 0; i < rows; i++)
    for (j = 0; j < cols; j++)
      if (out_image[i][j] == set_value)
        the_image[i][j] = -50;
  pixel_grow(the_image, out_image, diff, min_area, max_area, rows, cols);
  return (1);
}
```