user: What would the C source look like for the assembly code provided here?

```asm
<damerau_levenshtein_distance>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xa0,%rsp
  mov    %rdi,-0x88(%rbp)
  mov    %rsi,-0x90(%rbp)
  mov    %rdx,-0x98(%rbp)
  mov    %rcx,-0xa0(%rbp)
  mov    -0x98(%rbp),%rdx
  mov    -0xa0(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x58(%rbp)
  mov    -0xa0(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,-0x50(%rbp)
  mov    $0x8,%esi
  mov    $0x100,%edi
  call   <calloc@plt>
  mov    %rax,-0x48(%rbp)
  cmpq   $0x0,-0x48(%rbp)
  jne    L131
  mov    $0xffffffff,%eax
  jmp    L36
L131:
  mov    -0x98(%rbp),%rax
  add    $0x2,%rax
  imul   -0x50(%rbp),%rax
  shl    $0x3,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x40(%rbp)
  cmpq   $0x0,-0x40(%rbp)
  jne    L136
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0xffffffff,%eax
  jmp    L36
L136:
  mov    -0x40(%rbp),%rax
  mov    -0x58(%rbp),%rdx
  mov    %rdx,(%rax)
  movq   $0x0,-0x70(%rbp)
  jmp    L44
L79:
  mov    -0x70(%rbp),%rax
  add    $0x1,%rax
  imul   -0x50(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rax,%rdx
  mov    -0x58(%rbp),%rax
  mov    %rax,(%rdx)
  mov    -0x70(%rbp),%rax
  add    $0x1,%rax
  imul   -0x50(%rbp),%rax
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rax,%rdx
  mov    -0x70(%rbp),%rax
  mov    %rax,(%rdx)
  addq   $0x1,-0x70(%rbp)
L44:
  mov    -0x70(%rbp),%rax
  cmp    -0x98(%rbp),%rax
  jbe    L79
  movq   $0x0,-0x70(%rbp)
  jmp    L19
L32:
  mov    -0x70(%rbp),%rax
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rax,%rdx
  mov    -0x58(%rbp),%rax
  mov    %rax,(%rdx)
  mov    -0x50(%rbp),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rax,%rdx
  mov    -0x70(%rbp),%rax
  mov    %rax,(%rdx)
  addq   $0x1,-0x70(%rbp)
L19:
  mov    -0x70(%rbp),%rax
  cmp    -0xa0(%rbp),%rax
  jbe    L32
  movq   $0x1,-0x70(%rbp)
  jmp    L14
L137:
  movq   $0x0,-0x60(%rbp)
  movq   $0x1,-0x68(%rbp)
  jmp    L124
L126:
  mov    -0x68(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbq %al,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    %rax,-0x30(%rbp)
  mov    -0x60(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x70(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x68(%rbp),%rax
  lea    -0x1(%rax),%rcx
  mov    -0x90(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  jne    L77
  movw   $0x0,-0x72(%rbp)
  mov    -0x68(%rbp),%rax
  mov    %rax,-0x60(%rbp)
  jmp    L80
L77:
  movw   $0x1,-0x72(%rbp)
L80:
  mov    -0x70(%rbp),%rax
  imul   -0x50(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  movzwl -0x72(%rbp),%eax
  add    %rdx,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x1,%rax
  imul   -0x50(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  add    $0x1,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x70(%rbp),%rax
  imul   -0x50(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  imul   -0x50(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x70(%rbp),%rax
  sub    -0x30(%rbp),%rax
  add    %rax,%rdx
  mov    -0x68(%rbp),%rax
  sub    -0x28(%rbp),%rax
  add    %rdx,%rax
  sub    $0x1,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  cmp    %rax,%rdx
  cmova  %rax,%rdx
  mov    -0x18(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  cmp    %rax,%rcx
  cmovbe %rcx,%rax
  mov    -0x70(%rbp),%rcx
  add    $0x1,%rcx
  mov    %rcx,%rsi
  imul   -0x50(%rbp),%rsi
  mov    -0x68(%rbp),%rcx
  add    %rsi,%rcx
  add    $0x1,%rcx
  lea    0x0(,%rcx,8),%rsi
  mov    -0x40(%rbp),%rcx
  add    %rsi,%rcx
  cmp    %rax,%rdx
  cmovbe %rdx,%rax
  mov    %rax,(%rcx)
  addq   $0x1,-0x68(%rbp)
L124:
  mov    -0x68(%rbp),%rax
  cmp    -0xa0(%rbp),%rax
  jbe    L126
  mov    -0x70(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbq %al,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rax,%rdx
  mov    -0x70(%rbp),%rax
  mov    %rax,(%rdx)
  addq   $0x1,-0x70(%rbp)
L14:
  mov    -0x70(%rbp),%rax
  cmp    -0x98(%rbp),%rax
  jbe    L137
  mov    -0x98(%rbp),%rax
  add    $0x1,%rax
  imul   -0x50(%rbp),%rax
  mov    %rax,%rdx
  mov    -0xa0(%rbp),%rax
  add    %rdx,%rax
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x38(%rbp),%rax
L36:
  leave
  ret
```

assistant: ```c
int damerau_levenshtein_distance(const char *s1, const char *s2, size_t len1, size_t len2) {
  size_t infinite = len1 + len2;
  size_t cols = len2 + 2;
  size_t i, j, i1, j1;
  size_t db;
  size_t d1, d2, d3, d4, result;
  unsigned short cost;
  size_t *da = calloc(256, sizeof(size_t));
  if (!da) {
    return -1;
  }
  size_t *dist = malloc((len1 + 2) * cols * sizeof(size_t));
  if (!dist) {
    free(da);
    return -1;
  }
  dist[0] = infinite;
  for (i = 0; i <= len1; i++) {
    dist[((i + 1) * cols) + 0] = infinite;
    dist[((i + 1) * cols) + 1] = i;
  }
  for (i = 0; i <= len2; i++) {
    dist[i + 1] = infinite;
    dist[cols + i + 1] = i;
  }
  for (i = 1; i <= len1; i++) {
    db = 0;
    for (j = 1; j <= len2; j++) {
      i1 = da[(size_t)s2[j - 1]];
      j1 = db;
      if (s1[i - 1] == s2[j - 1]) {
        cost = 0;
        db = j;
      } else {
        cost = 1;
      }
      d1 = dist[(i * cols) + j] + cost;
      d2 = dist[((i + 1) * cols) + j] + 1;
      d3 = dist[(i * cols) + j + 1] + 1;
      d4 = dist[(i1 * cols) + j1] + (i - i1 - 1) + 1 + (j - j1 - 1);
      dist[((i + 1) * cols) + j + 1] = ((((d1) < (d2) ? (d1) : (d2))) < (((d3) < (d4) ? (d3) : (d4))) ? (((d1) < (d2) ? (d1) : (d2))) : (((d3) < (d4) ? (d3) : (d4))));
    }
    da[(size_t)s1[i - 1]] = i;
  }
  result = dist[((len1 + 1) * cols) + len2 + 1];
  free(dist);
  free(da);
  return result;
}
```