user: 下面的汇编指令对应的C源代码是什么:

```asm
<lzss_decompress>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x48(%rbp)
  movl   $0x0,-0x34(%rbp)
  cmpq   $0x0,-0x48(%rbp)
  jne    L84
  mov    $0x0,%eax
  jmp    L106
L84:
  mov    -0x48(%rbp),%rax
  sub    $0x10,%rax
  mov    (%rax),%rax
  mov    %eax,-0x2c(%rbp)
  mov    -0x48(%rbp),%rax
  sub    $0x8,%rax
  mov    (%rax),%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x2c(%rbp),%eax
  shr    $0x18,%eax
  neg    %eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x2c(%rbp),%eax
  and    $0xffffff,%eax
  neg    %eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L91
L81:
  mov    -0x10(%rbp),%rax
  lea    -0x4(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  sub    $0x4,%rax
  mov    (%rax),%eax
  mov    %al,-0x39(%rbp)
  movl   $0x0,-0x30(%rbp)
  jmp    L28
L82:
  cmpb   $0x0,-0x39(%rbp)
  jns    L78
  mov    -0x10(%rbp),%rax
  mov    -0x4(%rax),%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x10(%rbp),%rax
  mov    -0x8(%rax),%eax
  mov    %eax,-0x20(%rbp)
  subq   $0x8,-0x10(%rbp)
  mov    -0x24(%rbp),%eax
  shl    $0x8,%eax
  mov    %eax,%edx
  mov    -0x20(%rbp),%eax
  or     %edx,%eax
  and    $0xf,%ah
  add    $0x2,%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x24(%rbp),%eax
  add    $0x20,%eax
  mov    %eax,-0x38(%rbp)
L94:
  mov    -0x1c(%rbp),%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x18(%rbp),%rax
  lea    -0x4(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  lea    -0x4(%rax),%rdx
  mov    -0x34(%rbp),%eax
  mov    %eax,(%rdx)
  subl   $0x10,-0x38(%rbp)
  cmpl   $0x0,-0x38(%rbp)
  jns    L94
  jmp    L19
L78:
  mov    -0x10(%rbp),%rax
  lea    -0x4(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  mov    -0x4(%rax),%eax
  mov    %eax,-0x28(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x18(%rbp),%rax
  lea    -0x4(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  lea    -0x4(%rax),%rdx
  mov    -0x28(%rbp),%eax
  mov    %eax,(%rdx)
L19:
  movzbl -0x39(%rbp),%eax
  add    %eax,%eax
  mov    %al,-0x39(%rbp)
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  ja     L23
  mov    -0x34(%rbp),%eax
  jmp    L106
L23:
  addl   $0x1,-0x30(%rbp)
L28:
  cmpl   $0x7,-0x30(%rbp)
  jle    L82
L91:
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  ja     L81
  mov    -0x34(%rbp),%eax
L106:
  pop    %rbp
  ret
```

assistant: ```c
int lzss_decompress(uint8_t *buffer) {
  unsigned int decompSize, v15;
  uint8_t *compressEndOff, *index, *stopIndex;
  char control;
  int v9, v13, v14, v16;
  int ret = 0;
  if (!buffer)
    return 0;
  decompSize = *((uint32_t *)buffer - 2);
  compressEndOff = &buffer[*((uint32_t *)buffer - 1)];
  index = &buffer[-(decompSize >> 24)];
  stopIndex = &buffer[-(decompSize & 0xFFFFFF)];
  while (index > stopIndex) {
    control = *(index-- - 1);
    for (int i = 0; i < 8; i++) {
      if (control & 0x80) {
        v13 = *(index - 1);
        v14 = *(index - 2);
        index -= 2;
        v15 = (((unsigned int)v14 | ((unsigned int)v13 << 8)) & 0xFFFF0FFF) + 2;
        v16 = v13 + 32;
        do {
          ret = compressEndOff[v15];
          *(compressEndOff-- - 1) = ret;
          v16 -= 16;
        } while (!(v16 < 0));
      } else {
        v9 = *(index-- - 1);
        ret = v9;
        *(compressEndOff-- - 1) = v9;
      }
      control *= 2;
      if (index <= stopIndex)
        return ret;
    }
  }
  return ret;
}
```