user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<single_param>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  movl   $0x0,-0x14(%rbp)
  movl   $0x0,-0x10(%rbp)
  movl   $0x0,-0xc(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,D85(%rip)
L150:
  cmpl   $0x1,-0xc(%rbp)
  jne    L138
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L3
  mov    -0x8(%rbp),%rax
  jmp    L169
L3:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x3c,%al
  je     L210
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x3e,%al
  jne    L215
L210:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  jmp    L169
L215:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jne    L57
  cmpl   $0x0,-0x14(%rbp)
  jne    L57
  cmpl   $0x0,-0x10(%rbp)
  jne    L57
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  jmp    L169
L57:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L98
  cmpl   $0x1,-0x14(%rbp)
  jne    L98
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  jmp    L169
L98:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L100
  cmpl   $0x1,-0x10(%rbp)
  jne    L100
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  jmp    L169
L138:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L100
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L100
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L11
  movl   $0x1,-0x10(%rbp)
  movl   $0x1,-0xc(%rbp)
  mov    D85(%rip),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L100
L11:
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L29
  movl   $0x1,-0x14(%rbp)
  movl   $0x1,-0xc(%rbp)
  mov    D85(%rip),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L100
L29:
  movl   $0x1,-0xc(%rbp)
  mov    D85(%rip),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
L100:
  mov    D85(%rip),%eax
  add    $0x1,%eax
  mov    %eax,D161(%rip)
  jmp    L150
L169:
  pop    %rbp
  ret
```

assistant: ```c
char *single_param(char *st) {
  int quot1 = 0, quot2 = 0, start = 0;
  char *t = st;
  static int idx;
  idx = 0;
  while (1) {
    if (start == 1) {
      if (st[idx] == '\0')
        return t;
      if (st[idx] == '<' || st[idx] == '>') {
        st[idx] = '\0';
        return t;
      }
      if (st[idx] == ' ' && quot1 == 0 && quot2 == 0) {
        st[idx] = '\0';
        return t;
      }
      if (st[idx] == '\'' && quot1 == 1) {
        st[idx] = '\0';
        return t;
      }
      if (st[idx] == '"' && quot2 == 1) {
        st[idx] = '\0';
        return t;
      }
    } else {
      if (st[idx] == ' ' || st[idx] == '\0')
        ;
      else if (st[idx] == '"') {
        quot2 = 1;
        start = 1;
        t = &(st[idx + 1]);
      } else if (st[idx] == '\'') {
        quot1 = 1;
        start = 1;
        t = &(st[idx + 1]);
      } else {
        start = 1;
        t = &(st[idx]);
      }
    }
    idx++;
  }
}
```