user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<narrowbandUnitCostDistanceNoEndPenaltySeq2>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %edx,0x1c(%rsp)
  mov    %ecx,(%rsp)
  mov    %r8d,0x18(%rsp)
  cmp    %ecx,%edx
  jg     L126
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  mov    %edx,%r15d
  mov    %ecx,%r14d
  lea    0x1(%rdx),%edi
  mov    $0x8,%esi
  call   <calloc@plt>
  mov    %rax,0x10(%rsp)
  test   %r15d,%r15d
  js     L114
  mov    %rax,%r13
  mov    $0x0,%r12d
  add    $0x1,%r14d
L183:
  mov    $0x4,%esi
  mov    %r14d,%edi
  call   <calloc@plt>
  mov    %rax,0x0(%r13)
  add    $0x1,%r12d
  add    $0x8,%r13
  cmp    %r12d,%r15d
  jge    L183
L114:
  mov    0x18(%rsp),%edi
  mov    %edi,%eax
  neg    %eax
  test   %edi,%edi
  mov    $0x0,%edx
  cmovg  %edx,%eax
  mov    (%rsp),%ecx
  cmp    %edi,%ecx
  cmovle %ecx,%edi
  cmp    %eax,%edi
  jl     L137
  movslq %eax,%rdx
  shl    $0x2,%rdx
  lea    0x1(%rdi),%esi
  mov    0x10(%rsp),%r8
L116:
  mov    (%r8),%rcx
  mov    %eax,(%rcx,%rdx,1)
  add    $0x1,%eax
  add    $0x4,%rdx
  cmp    %esi,%eax
  jne    L116
L137:
  cmp    (%rsp),%edi
  jge    L178
  movslq %edi,%rdi
  mov    0x10(%rsp),%rax
  mov    (%rax),%rax
  movl   $0x3e8,0x4(%rax,%rdi,4)
L178:
  mov    0x1c(%rsp),%eax
  test   %eax,%eax
  jle    L152
  mov    $0x1,%r12d
  mov    0x18(%rsp),%edi
  sub    %edi,%r12d
  mov    0x10(%rsp),%rcx
  lea    0x8(%rcx),%r14
  add    %r12d,%eax
  mov    %eax,0x4(%rsp)
  mov    %rbp,%r11
  mov    $0x1,%eax
  sub    %ebp,%eax
  mov    %eax,0x8(%rsp)
  lea    0x1(%rdi),%eax
  sub    %ebp,%eax
  mov    %eax,0xc(%rsp)
  jmp    L25
L75:
  mov    0x0(%r13),%r10
  mov    (%r10,%rcx,1),%eax
  add    $0x1,%eax
  mov    0x0(%rbp),%r9
  mov    -0x4(%r9,%rcx,1),%edi
  add    $0x1,%edi
  movzbl -0x1(%rbx,%rdx,1),%esi
  cmp    %sil,(%r11)
  setne  %sil
  movzbl %sil,%esi
  add    -0x4(%r10,%rcx,1),%esi
  cmp    %esi,%eax
  mov    %esi,%r10d
  cmovle %eax,%r10d
  cmp    %edi,%eax
  cmovg  %edi,%eax
  cmp    %esi,%edi
  cmovge %r10d,%eax
  mov    %eax,(%r9,%rcx,1)
L39:
  add    $0x1,%rdx
  add    $0x4,%rcx
  cmp    %edx,%r8d
  jl     L58
L150:
  test   %edx,%edx
  jne    L75
  mov    0x0(%rbp),%rax
  mov    %r15d,(%rax)
  jmp    L39
L58:
  cmp    (%rsp),%r8d
  jge    L46
  movslq %r8d,%r8
  mov    (%r14),%rax
  movl   $0x3e8,0x4(%rax,%r8,4)
L46:
  add    $0x1,%r12d
  add    $0x8,%r14
  add    $0x1,%r11
  cmp    0x4(%rsp),%r12d
  je     L152
L25:
  mov    0x8(%rsp),%eax
  lea    (%rax,%r11,1),%r15d
  test   %r12d,%r12d
  mov    $0x0,%edx
  cmovns %r12d,%edx
  mov    0xc(%rsp),%eax
  lea    (%rax,%r11,1),%r8d
  mov    (%rsp),%eax
  cmp    %eax,%r8d
  cmovg  %eax,%r8d
  test   %r12d,%r12d
  jle    L161
  movslq %edx,%rax
  mov    (%r14),%rcx
  movl   $0x3e8,-0x4(%rcx,%rax,4)
L161:
  cmp    %edx,%r8d
  jl     L58
  lea    -0x8(%r14),%r13
  mov    %r14,%rbp
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  jmp    L150
L152:
  mov    0x1c(%rsp),%ebx
  mov    %ebx,%eax
  mov    0x18(%rsp),%ecx
  sub    %ecx,%eax
  mov    $0x0,%edx
  cmovs  %edx,%eax
  add    %ebx,%ecx
  mov    (%rsp),%edi
  cmp    %edi,%ecx
  cmovg  %edi,%ecx
  movslq %ebx,%rdx
  mov    0x10(%rsp),%rbx
  mov    (%rbx,%rdx,8),%rsi
  movslq %eax,%rdx
  mov    (%rsi,%rdx,4),%ebx
  add    $0x1,%eax
  cmp    %eax,%ecx
  jl     L41
  cltq
L54:
  mov    (%rsi,%rax,4),%edx
  cmp    %edx,%ebx
  cmovg  %edx,%ebx
  add    $0x1,%rax
  cmp    %eax,%ecx
  jge    L54
L41:
  mov    0x10(%rsp),%rdi
  call   <free@plt>
L0:
  mov    %ebx,%eax
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L126:
  mov    $0xffffffff,%ebx
  jmp    L0
```

assistant: ```c
int narrowbandUnitCostDistanceNoEndPenaltySeq2(char *seq1, char *seq2, int len1, int len2, int maxerr) {
  int **S;
  int score;
  int row, col;
  int match;
  int left, up, diagonal;
  int from, to;
  if (len1 > len2) {
    return (-1);
  }
  S = (int **)calloc((len1 + 1), sizeof(int *));
  for (row = 0; row <= len1; row++) {
    S[row] = (int *)calloc(len2 + 1, sizeof(int));
  }
  row = 0;
  from = row - maxerr;
  to = row + maxerr;
  if (from < 0)
    from = 0;
  if (to > len2)
    to = len2;
  for (col = from; col <= to; col++) {
    S[0][col] = col;
  }
  if (to + 1 <= len2) {
    S[0][to + 1] = 1000;
  }
  for (row = 1; row <= len1; row++) {
    from = row - maxerr;
    to = row + maxerr;
    if (from < 0)
      from = 0;
    if (to > len2)
      to = len2;
    if (from > 0)
      S[row][from - 1] = 1000;
    for (col = from; col <= to; col++) {
      if (col == 0)
        S[row][0] = row;
      else {
        match = (seq1[row - 1] == seq2[col - 1]) ? 0 : 1;
        up = S[row - 1][col] + 1;
        left = S[row][col - 1] + 1;
        diagonal = S[row - 1][col - 1] + match;
        S[row][col] = ((diagonal <= left) ? ((diagonal <= up) ? diagonal : up) : ((left <= up) ? left : up));
      }
    }
    if (to + 1 <= len2) {
      S[row][to + 1] = 1000;
    }
  }
  row = len1;
  from = row - maxerr;
  to = row + maxerr;
  if (from < 0)
    from = 0;
  if (to > len2)
    to = len2;
  score = S[row][from];
  for (col = from + 1; col <= to; col++) {
    if (S[row][col] < score) {
      score = S[row][col];
    }
  }
  free(S);
  return (score);
}
```