user: Demonstrate the C code that generates the assembly output below:

```asm
<verrevcmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  movq   $0x0,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L158
L9:
  movl   $0x0,-0x1c(%rbp)
  jmp    L189
L278:
  mov    -0x10(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  je     L219
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <order@plt>
  jmp    L183
L219:
  mov    $0x0,%eax
L183:
  mov    %eax,-0x18(%rbp)
  mov    -0x8(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  je     L276
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <order@plt>
  jmp    L31
L276:
  mov    $0x0,%eax
L31:
  mov    %eax,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  je     L211
  mov    -0x18(%rbp),%eax
  sub    -0x14(%rbp),%eax
  jmp    L134
L211:
  addq   $0x1,-0x10(%rbp)
  addq   $0x1,-0x8(%rbp)
L189:
  mov    -0x10(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  jae    L236
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L278
L236:
  mov    -0x8(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  jae    L152
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L278
  jmp    L152
L107:
  addq   $0x1,-0x10(%rbp)
L152:
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x30,%al
  je     L107
  jmp    L275
L70:
  addq   $0x1,-0x8(%rbp)
L275:
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x30,%al
  je     L70
  jmp    L40
L139:
  cmpl   $0x0,-0x1c(%rbp)
  jne    L143
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    -0x38(%rbp),%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rdx),%edx
  movsbl %dl,%edx
  sub    %edx,%eax
  mov    %eax,-0x1c(%rbp)
L143:
  addq   $0x1,-0x10(%rbp)
  addq   $0x1,-0x8(%rbp)
L40:
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L108
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L139
L108:
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L58
  mov    $0x1,%eax
  jmp    L134
L58:
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L220
  mov    $0xffffffff,%eax
  jmp    L134
L220:
  cmpl   $0x0,-0x1c(%rbp)
  je     L158
  mov    -0x1c(%rbp),%eax
  jmp    L134
L158:
  mov    -0x10(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  jb     L9
  mov    -0x8(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  jb     L9
  mov    $0x0,%eax
L134:
  leave
  ret
```

assistant: ```c
int verrevcmp(const char *s1, size_t s1_len, const char *s2, size_t s2_len) {
  size_t s1_pos = 0;
  size_t s2_pos = 0;
  while (s1_pos < s1_len || s2_pos < s2_len) {
    int first_diff = 0;
    while ((s1_pos < s1_len && !isdigit(s1[s1_pos])) || (s2_pos < s2_len && !isdigit(s2[s2_pos]))) {
      int s1_c = (s1_pos == s1_len) ? 0 : order(s1[s1_pos]);
      int s2_c = (s2_pos == s2_len) ? 0 : order(s2[s2_pos]);
      if (s1_c != s2_c)
        return s1_c - s2_c;
      s1_pos++;
      s2_pos++;
    }
    while (s1[s1_pos] == '0')
      s1_pos++;
    while (s2[s2_pos] == '0')
      s2_pos++;
    while (isdigit(s1[s1_pos]) && isdigit(s2[s2_pos])) {
      if (!first_diff)
        first_diff = s1[s1_pos] - s2[s2_pos];
      s1_pos++;
      s2_pos++;
    }
    if (isdigit(s1[s1_pos]))
      return 1;
    if (isdigit(s2[s2_pos]))
      return -1;
    if (first_diff)
      return first_diff;
  }
  return 0;
}
```