user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<Decompress420HiNoMMX>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %edx,-0x54(%rbp)
  mov    %ecx,-0x58(%rbp)
  mov    %r8d,-0x5c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x50(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x54(%rbp),%eax
  imul   -0x58(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x54(%rbp),%eax
  imul   -0x58(%rbp),%eax
  lea    0x3(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x2,%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x54(%rbp),%eax
  imul   -0x58(%rbp),%eax
  lea    0xff(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x8,%eax
  mov    %eax,-0x24(%rbp)
  movl   $0x0,-0x34(%rbp)
  movl   $0x0,-0x38(%rbp)
  mov    -0x38(%rbp),%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x3c(%rbp),%eax
  mov    %eax,-0x40(%rbp)
  movl   $0x0,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x30(%rbp)
  movl   $0x0,-0x28(%rbp)
  jmp    L42
L51:
  mov    -0x54(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edi
  lea    -0x3c(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x18(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x2,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  mov    -0x54(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edi
  lea    -0x38(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x10(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x2,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  addl   $0x10,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L45
  mov    -0x54(%rbp),%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edx
  mov    -0x3c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x54(%rbp),%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edx
  mov    -0x38(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x38(%rbp)
  movl   $0x0,-0x2c(%rbp)
L45:
  mov    -0x54(%rbp),%edi
  lea    -0x40(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x20(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x1,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  addl   $0x8,-0x30(%rbp)
  mov    -0x54(%rbp),%edi
  lea    -0x40(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x20(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x1,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  addl   $0x8,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L0
  mov    -0x54(%rbp),%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  mov    -0x40(%rbp),%eax
  add    %ecx,%eax
  mov    %eax,-0x40(%rbp)
  movl   $0x0,-0x30(%rbp)
L0:
  mov    -0x54(%rbp),%edi
  lea    -0x40(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x20(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x1,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  addl   $0x8,-0x30(%rbp)
  mov    -0x54(%rbp),%edi
  lea    -0x40(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  mov    -0x20(%rbp),%rsi
  mov    -0x48(%rbp),%rax
  mov    $0x1,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <DecompressYHI@plt>
  addl   $0x8,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L37
  mov    -0x54(%rbp),%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  mov    -0x40(%rbp),%eax
  add    %ecx,%eax
  mov    %eax,-0x40(%rbp)
  movl   $0x0,-0x30(%rbp)
L37:
  addl   $0x1,-0x28(%rbp)
L42:
  mov    -0x28(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L51
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L17
  call   <__stack_chk_fail@plt>
L17:
  leave
  ret
```

assistant: ```c
int Decompress420HiNoMMX(unsigned char *pIn, unsigned char *pOut, const int w, const int h, const int inSize) {
  unsigned char *pY = pOut;
  unsigned char *pU = pY + w * h;
  unsigned char *pV = pU + w * h / 4;
  int xY, xUV, iY, iU, iV, iIn, count;
  const int nBlocks = (w * h) / (32 * 8);
  iIn = 0;
  iY = iU = iV = 0;
  xY = xUV = 0;
  for (count = 0; count < nBlocks; count++) {
    DecompressYHI(pIn, pU, &iIn, &iU, w / 2, 2);
    DecompressYHI(pIn, pV, &iIn, &iV, w / 2, 2);
    xUV += 16;
    if (xUV >= w) {
      iU += (w * 7) / 2;
      iV += (w * 7) / 2;
      xUV = 0;
    }
    DecompressYHI(pIn, pY, &iIn, &iY, w, 1);
    xY += 8;
    DecompressYHI(pIn, pY, &iIn, &iY, w, 1);
    xY += 8;
    if (xY >= w) {
      iY += w * 7;
      xY = 0;
    }
    DecompressYHI(pIn, pY, &iIn, &iY, w, 1);
    xY += 8;
    DecompressYHI(pIn, pY, &iIn, &iY, w, 1);
    xY += 8;
    if (xY >= w) {
      iY += w * 7;
      xY = 0;
    }
  }
  return 0;
}
```