user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<hexdump>:
  endbr64
  test   %esi,%esi
  jle    L356
  push   %r15
  lea    -0x1(%rsi),%eax
  push   %r14
  shr    $0x4,%eax
  lea    D13(%rip),%r14
  push   %r13
  add    $0x2,%eax
  push   %r12
  shl    $0x4,%rax
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    %esi,%ebx
  sub    $0x18,%rsp
  mov    %rax,0x8(%rsp)
  movq   $0x10,(%rsp)
L347:
  mov    (%rsp),%rax
  lea    D8(%rip),%rdi
  mov    %r12,%r13
  lea    -0x10(%rax),%r15d
  mov    %eax,%ebp
  xor    %eax,%eax
  mov    %r15d,%esi
  call   <printf@plt>
  jmp    L625
L291:
  mov    0x0(%r13),%esi
  lea    D7(%rip),%rdi
  xor    %eax,%eax
  add    $0x4,%r13
  call   <printf@plt>
  lea    0x1(%r15),%eax
  cmp    %eax,%ebp
  je     L240
L342:
  mov    %eax,%r15d
L625:
  cmp    %r15d,%ebx
  jg     L291
  mov    %r14,%rdi
  xor    %eax,%eax
  add    $0x4,%r13
  call   <printf@plt>
  lea    0x1(%r15),%eax
  cmp    %eax,%ebp
  jne    L342
L240:
  mov    $0x20,%edi
  call   <putchar@plt>
  mov    (%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  je     L640
  mov    (%r12),%edi
  call   <putchar@plt>
  lea    -0xe(%r15),%eax
  cmp    %eax,%ebx
  jg     L423
L3:
  lea    -0xd(%r15),%eax
  cmp    %eax,%ebx
  jg     L581
L387:
  lea    -0xc(%r15),%eax
  cmp    %eax,%ebx
  jg     L671
L224:
  lea    -0xb(%r15),%eax
  cmp    %eax,%ebx
  jg     L165
L576:
  lea    -0xa(%r15),%eax
  cmp    %eax,%ebx
  jg     L314
L352:
  lea    -0x9(%r15),%eax
  cmp    %eax,%ebx
  jg     L531
L598:
  lea    -0x8(%r15),%eax
  cmp    %eax,%ebx
  jg     L602
L660:
  lea    -0x7(%r15),%eax
  cmp    %eax,%ebx
  jg     L450
L554:
  lea    -0x6(%r15),%eax
  cmp    %eax,%ebx
  jg     L445
L551:
  lea    -0x5(%r15),%eax
  cmp    %eax,%ebx
  jg     L288
L48:
  lea    -0x4(%r15),%eax
  cmp    %eax,%ebx
  jg     L128
L34:
  lea    -0x3(%r15),%eax
  cmp    %eax,%ebx
  jg     L418
L496:
  lea    -0x2(%r15),%eax
  cmp    %eax,%ebx
  jg     L386
L236:
  lea    -0x1(%r15),%eax
  cmp    %eax,%ebx
  jg     L242
L180:
  cmp    %r15d,%ebx
  jg     L142
L246:
  mov    $0xa,%edi
  add    $0x40,%r12
  call   <putchar@plt>
  addq   $0x10,(%rsp)
  mov    (%rsp),%rax
  cmp    0x8(%rsp),%rax
  jne    L347
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L640:
  mov    $0x2e,%edi
  call   <putchar@plt>
  lea    -0xe(%r15),%eax
  cmp    %eax,%ebx
  jle    L3
L423:
  mov    0x4(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L253
  mov    $0x2e,%edi
L453:
  call   <putchar@plt>
  lea    -0xd(%r15),%eax
  cmp    %eax,%ebx
  jle    L387
L581:
  mov    0x8(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L414
  mov    $0x2e,%edi
L607:
  call   <putchar@plt>
  lea    -0xc(%r15),%eax
  cmp    %eax,%ebx
  jle    L224
L671:
  mov    0xc(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L593
  mov    $0x2e,%edi
L488:
  call   <putchar@plt>
  lea    -0xb(%r15),%eax
  cmp    %eax,%ebx
  jle    L576
L165:
  mov    0x10(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L247
  mov    $0x2e,%edi
L129:
  call   <putchar@plt>
  lea    -0xa(%r15),%eax
  cmp    %eax,%ebx
  jle    L352
L314:
  mov    0x14(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L490
  mov    $0x2e,%edi
L579:
  call   <putchar@plt>
  lea    -0x9(%r15),%eax
  cmp    %eax,%ebx
  jle    L598
L531:
  mov    0x18(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L125
  mov    $0x2e,%edi
L615:
  call   <putchar@plt>
  lea    -0x8(%r15),%eax
  cmp    %eax,%ebx
  jle    L660
L602:
  mov    0x1c(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L62
  mov    $0x2e,%edi
L4:
  call   <putchar@plt>
  lea    -0x7(%r15),%eax
  cmp    %eax,%ebx
  jle    L554
L450:
  mov    0x20(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L442
  mov    $0x2e,%edi
L52:
  call   <putchar@plt>
  lea    -0x6(%r15),%eax
  cmp    %eax,%ebx
  jle    L551
L445:
  mov    0x24(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L477
  mov    $0x2e,%edi
L632:
  call   <putchar@plt>
  lea    -0x5(%r15),%eax
  cmp    %eax,%ebx
  jle    L48
L288:
  mov    0x28(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L273
  mov    $0x2e,%edi
L355:
  call   <putchar@plt>
  lea    -0x4(%r15),%eax
  cmp    %eax,%ebx
  jle    L34
L128:
  mov    0x2c(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L122
  mov    $0x2e,%edi
L158:
  call   <putchar@plt>
  lea    -0x3(%r15),%eax
  cmp    %eax,%ebx
  jle    L496
L418:
  mov    0x30(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L155
  mov    $0x2e,%edi
L104:
  call   <putchar@plt>
  lea    -0x2(%r15),%eax
  cmp    %eax,%ebx
  jle    L236
L386:
  mov    0x34(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L85
  mov    $0x2e,%edi
L618:
  call   <putchar@plt>
  lea    -0x1(%r15),%eax
  cmp    %eax,%ebx
  jle    L180
L242:
  mov    0x38(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L373
  mov    $0x2e,%edi
L292:
  call   <putchar@plt>
  cmp    %r15d,%ebx
  jle    L246
L142:
  mov    0x3c(%r12),%edi
  call   <isprint@plt>
  test   %rax,%rax
  jne    L280
  mov    $0x2e,%edi
L634:
  call   <putchar@plt>
  jmp    L246
L253:
  mov    0x4(%r12),%edi
  jmp    L453
L593:
  mov    0xc(%r12),%edi
  jmp    L488
L442:
  mov    0x20(%r12),%edi
  jmp    L52
L414:
  mov    0x8(%r12),%edi
  jmp    L607
L490:
  mov    0x14(%r12),%edi
  jmp    L579
L62:
  mov    0x1c(%r12),%edi
  jmp    L4
L125:
  mov    0x18(%r12),%edi
  jmp    L615
L247:
  mov    0x10(%r12),%edi
  jmp    L129
L477:
  mov    0x24(%r12),%edi
  jmp    L632
L122:
  mov    0x2c(%r12),%edi
  jmp    L158
L273:
  mov    0x28(%r12),%edi
  jmp    L355
L280:
  mov    0x3c(%r12),%edi
  jmp    L634
L373:
  mov    0x38(%r12),%edi
  jmp    L292
L85:
  mov    0x34(%r12),%edi
  jmp    L618
L155:
  mov    0x30(%r12),%edi
  jmp    L104
L356:
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D13
type_infered: string
name: extract_symbolic_data
arguments: tag: D8
type_infered: string
name: extract_symbolic_data
arguments: tag: D7
type_infered: string

tool: D13:    

tool: D8: %06x: 

tool: D7: %02x 

assistant: ```c
void hexdump(void *ptr, int len) {
  uint8_t *buf = (uint8_t *)ptr;
  int i, j;
  for (i = 0; i < len; i += 16) {
    printf("%06x: ", i);
    for (j = 0; j < 16; j++)
      if (i + j < len)
        printf("%02x ", buf[i + j]);
      else
        printf("   ");
    printf(" ");
    for (j = 0; j < 16; j++)
      if (i + j < len)
        printf("%c", isprint(buf[i + j]) ? buf[i + j] : '.');
    printf("\n");
  }
}
```