user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<lengthOfLongestSubstring>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x228,%rsp
  mov    %rdi,%r13
  mov    %fs:0x28,%rax
  mov    %rax,0x218(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rdi
  mov    $0x40,%ecx
  rep stos %rax,%es:(%rdi)
  cmpb   $0x0,0x0(%r13)
  je     L126
  mov    $0x0,%r15d
  movl   $0x0,0xc(%rsp)
  mov    $0x0,%r12d
  mov    $0x0,%r14d
  lea    D19(%rip),%rbp
  jmp    L113
L61:
  add    $0x1,%rbx
  cmp    $0x80,%rbx
  je     L27
L115:
  mov    %ebx,%esi
  mov    0x10(%rsp,%rbx,4),%edx
  test   %edx,%edx
  je     L61
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L61
L27:
  mov    $0xa,%edi
  call   <putchar@plt>
  movsbq 0x0(%r13),%rax
  mov    0x10(%rsp,%rax,4),%eax
  cmp    0xc(%rsp),%eax
  jle    L99
  cmp    %r12d,%r14d
  cmovl  %r12d,%r14d
  mov    %r15d,%r12d
  sub    %eax,%r12d
  mov    %eax,0xc(%rsp)
L99:
  mov    0xc(%rsp),%ecx
  mov    %r12d,%edx
  mov    %r14d,%esi
  lea    D11(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%ebx
  jmp    L52
L100:
  add    $0x1,%rbx
  cmp    $0x80,%rbx
  je     L97
L52:
  mov    %ebx,%esi
  mov    0x10(%rsp,%rbx,4),%edx
  test   %edx,%edx
  je     L100
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L100
L97:
  mov    $0xa,%edi
  call   <putchar@plt>
  add    $0x1,%r15d
  add    $0x1,%r13
  movzbl 0x0(%r13),%eax
  movsbq %al,%rdx
  mov    %r15d,0x10(%rsp,%rdx,4)
  add    $0x1,%r12d
  test   %al,%al
  je     L120
L113:
  mov    0xc(%rsp),%ecx
  mov    %r12d,%edx
  mov    %r14d,%esi
  lea    D2(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%ebx
  jmp    L115
L126:
  mov    $0x0,%r12d
  mov    $0x0,%r14d
L120:
  cmp    %r12d,%r14d
  mov    %r12d,%eax
  cmovge %r14d,%eax
  mov    0x218(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L29
  add    $0x228,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L29:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D19
type: string
name: disassemble_data
arguments: label: D11
type: string
name: disassemble_data
arguments: label: D2
type: string

tool: D19: pos[%c] = %d 

tool: D11: aft: longest = %d, currentLength = %d, start = %d


tool: D2: bef: longest = %d, currentLength = %d, start = %d


assistant: ```c
int lengthOfLongestSubstring(char *s) {
  int longest = 0, currentLength = 0, start = 0, position[128] = {0};
  int i, j;
  for (i = 0; s[i]; position[s[i]] = ++i, currentLength++) {
    printf("bef: longest = %d, currentLength = %d, start = %d\n", longest, currentLength, start);
    for (j = 0; j < 128; ++j) {
      if (position[j]) {
        printf("pos[%c] = %d ", j, position[j]);
      }
    }
    printf("\n");
    if (position[s[i]] > start) {
      longest = (longest > currentLength) ? longest : currentLength;
      start = position[s[i]];
      currentLength = i - position[s[i]];
    }
    printf("aft: longest = %d, currentLength = %d, start = %d\n", longest, currentLength, start);
    for (j = 0; j < 128; ++j) {
      if (position[j]) {
        printf("pos[%c] = %d ", j, position[j]);
      }
    }
    printf("\n");
  }
  return (longest > currentLength) ? longest : currentLength;
}
```