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

```asm
<u2mac>:
  endbr64
  mov    %rdi,%rcx
  test   %edx,%edx
  je     L53
  lea    0x1(%rsi),%rdi
  mov    %rcx,%rax
  sub    %rdi,%rax
  cmp    $0xe,%rax
  jbe    L176
  lea    -0x1(%rdx),%eax
  cmp    $0xe,%eax
  jbe    L176
  mov    %edx,%edi
  movdqa D5(%rip),%xmm1
  xor    %eax,%eax
  shr    $0x4,%edi
  shl    $0x4,%rdi
  nopw   0x0(%rax,%rax,1)
L186:
  movdqu (%rsi,%rax,1),%xmm0
  movdqu (%rsi,%rax,1),%xmm2
  pcmpeqb %xmm1,%xmm0
  pandn  %xmm2,%xmm0
  movups %xmm0,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %rdi,%rax
  jne    L186
  mov    %edx,%edi
  mov    %edx,%r8d
  and    $0xfffffff0,%edi
  mov    %edi,%eax
  sub    %edi,%r8d
  add    %rax,%rcx
  add    %rsi,%rax
  cmp    %edi,%edx
  je     L53
  movzbl (%rax),%esi
  xor    %edx,%edx
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,(%rcx)
  cmp    $0x1,%r8d
  je     L53
  movzbl 0x1(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x1(%rcx)
  cmp    $0x2,%r8d
  je     L53
  movzbl 0x2(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x2(%rcx)
  cmp    $0x3,%r8d
  je     L53
  movzbl 0x3(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x3(%rcx)
  cmp    $0x4,%r8d
  je     L53
  movzbl 0x4(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x4(%rcx)
  cmp    $0x5,%r8d
  je     L53
  movzbl 0x5(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x5(%rcx)
  cmp    $0x6,%r8d
  je     L53
  movzbl 0x6(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x6(%rcx)
  cmp    $0x7,%r8d
  je     L53
  movzbl 0x7(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x7(%rcx)
  cmp    $0x8,%r8d
  je     L53
  movzbl 0x8(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x8(%rcx)
  cmp    $0x9,%r8d
  je     L53
  movzbl 0x9(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0x9(%rcx)
  cmp    $0xa,%r8d
  je     L53
  movzbl 0xa(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0xa(%rcx)
  cmp    $0xb,%r8d
  je     L53
  movzbl 0xb(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0xb(%rcx)
  cmp    $0xc,%r8d
  je     L53
  movzbl 0xc(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0xc(%rcx)
  cmp    $0xd,%r8d
  je     L53
  movzbl 0xd(%rax),%esi
  cmp    $0x2f,%sil
  cmove  %edx,%esi
  mov    %sil,0xd(%rcx)
  cmp    $0xe,%r8d
  je     L53
  movzbl 0xe(%rax),%eax
  cmp    $0x2f,%al
  cmove  %edx,%eax
  mov    %al,0xe(%rcx)
  ret
  nopl   (%rax)
L176:
  mov    %edx,%edx
  xor    %eax,%eax
L89:
  movzbl (%rsi,%rax,1),%edi
  cmp    $0x2f,%dil
  je     L171
  mov    %dil,(%rcx,%rax,1)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L89
L53:
  ret
  nopl   0x0(%rax)
L171:
  movb   $0x0,(%rcx,%rax,1)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L89
  ret
```

tool_calls: name: unpack_data
arguments: tag: D5
type_infered: byte[16]

tool: {"D5": [0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f]}

assistant: ```c
void u2mac(char *dst, char *name, int len) {
  while (len) {
    if (*name == '/') {
      *dst = 0;
    } else {
      *dst = *name;
    }
    dst++;
    name++;
    len--;
  }
}
```