user: 下面的汇编指令对应的C源代码是什么：

```asm
<strToUnicode>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  xor    %edi,%edi
  lea    (%rax,%rax,1),%r12
  mov    %rax,%rbp
  cmp    $0x3ff,%r12
  setbe  %dil
  call   <assert@plt>
  lea    D12(%rip),%r8
  test   %rbp,%rbp
  je     L139
  add    %r8,%r12
  lea    (%rbx,%rbp,1),%rdx
  cmp    %r12,%rbx
  setae  %al
  cmp    %r8,%rdx
  setbe  %cl
  or     %cl,%al
  je     L50
  lea    -0x1(%rbp),%rsi
  cmp    $0xe,%rsi
  jbe    L50
  mov    %rbp,%rcx
  mov    %rbx,%rdx
  pxor   %xmm1,%xmm1
  mov    %r8,%rax
  and    $0xfffffffffffffff0,%rcx
  add    %rbx,%rcx
  cs nopw 0x0(%rax,%rax,1)
L103:
  movdqu (%rdx),%xmm0
  add    $0x10,%rdx
  add    $0x20,%rax
  movdqa %xmm0,%xmm2
  punpckhbw %xmm1,%xmm0
  punpcklbw %xmm1,%xmm2
  movaps %xmm0,-0x10(%rax)
  movaps %xmm2,-0x20(%rax)
  cmp    %rdx,%rcx
  jne    L103
  mov    %rbp,%rcx
  and    $0xfffffffffffffff0,%rcx
  sub    %rcx,%rsi
  add    %rcx,%rbx
  lea    (%rcx,%rcx,1),%eax
  mov    %rsi,%rdx
  cmp    %rcx,%rbp
  je     L139
  movzbl (%rbx),%esi
  movslq %eax,%rcx
  mov    %sil,(%r8,%rcx,1)
  lea    0x1(%rax),%ecx
  lea    0x2(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  test   %rdx,%rdx
  je     L139
  movzbl 0x1(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x3(%rax),%ecx
  lea    0x4(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x1,%rdx
  je     L139
  movzbl 0x2(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x5(%rax),%ecx
  lea    0x6(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x2,%rdx
  je     L139
  movzbl 0x3(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x7(%rax),%ecx
  lea    0x8(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x3,%rdx
  je     L139
  movzbl 0x4(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x9(%rax),%ecx
  lea    0xa(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x4,%rdx
  je     L139
  movzbl 0x5(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0xb(%rax),%ecx
  lea    0xc(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x5,%rdx
  je     L139
  movzbl 0x6(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0xd(%rax),%ecx
  lea    0xe(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x6,%rdx
  je     L139
  movzbl 0x7(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0xf(%rax),%ecx
  lea    0x10(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x7,%rdx
  je     L139
  movzbl 0x8(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x11(%rax),%ecx
  lea    0x12(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x8,%rdx
  je     L139
  movzbl 0x9(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x13(%rax),%ecx
  lea    0x14(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0x9,%rdx
  je     L139
  movzbl 0xa(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x15(%rax),%ecx
  lea    0x16(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0xa,%rdx
  je     L139
  movzbl 0xb(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x17(%rax),%ecx
  lea    0x18(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0xb,%rdx
  je     L139
  movzbl 0xc(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x19(%rax),%ecx
  lea    0x1a(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0xc,%rdx
  je     L139
  movzbl 0xd(%rbx),%ecx
  movslq %esi,%rsi
  mov    %cl,(%r8,%rsi,1)
  lea    0x1b(%rax),%ecx
  lea    0x1c(%rax),%esi
  movslq %ecx,%rcx
  movb   $0x0,(%r8,%rcx,1)
  cmp    $0xd,%rdx
  je     L139
  movzbl 0xe(%rbx),%edx
  add    $0x1d,%eax
  movslq %esi,%rsi
  cltq
  mov    %dl,(%r8,%rsi,1)
  movb   $0x0,(%r8,%rax,1)
L139:
  pop    %rbx
  mov    %r8,%rax
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L50:
  lea    D12(%rip),%rax
  nopw   0x0(%rax,%rax,1)
L186:
  movzbl (%rbx),%ecx
  add    $0x1,%rbx
  movb   $0x0,0x1(%rax)
  add    $0x2,%rax
  mov    %cl,-0x2(%rax)
  cmp    %rbx,%rdx
  jne    L186
  pop    %rbx
  mov    %r8,%rax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
unsigned char *strToUnicode(char *p) {
  static unsigned char buf[1024];
  size_t l = strlen(p);
  int i = 0;
  assert(l * 2 < sizeof buf);
  while (l--) {
    buf[i++] = *p++;
    buf[i++] = 0;
  }
  return buf;
}
```