user: 这段汇编代码用C语言表示是什么样的：

```asm
<matrix4MulVecRes3f>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x30,%rax
  movss  (%rax),%xmm1
  mov    -0x20(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x34,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x38,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x3c,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  movss  %xmm0,-0x4(%rbp)
  mov    -0x18(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x20(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  divss  -0x4(%rbp),%xmm0
  mov    -0x28(%rbp),%rax
  movss  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  movss  (%rax),%xmm1
  mov    -0x20(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x14,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x1c,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  divss  -0x4(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x20,%rax
  movss  (%rax),%xmm1
  mov    -0x20(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x24,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x28,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x2c,%rax
  movss  (%rax),%xmm2
  mov    -0x20(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  mov    -0x28(%rbp),%rax
  add    $0x8,%rax
  divss  -0x4(%rbp),%xmm0
  movss  %xmm0,(%rax)
  nop
  pop    %rbp
  ret
```

assistant: ```c
void matrix4MulVecRes3f(float *mat, float *v, float *out) {
  float s = mat[12] * v[0] + mat[13] * v[1] + mat[14] * v[2] + mat[15] * v[3];
  out[0] = (mat[0] * v[0] + mat[1] * v[1] + mat[2] * v[2] + mat[3] * v[3]) / s;
  out[1] = (mat[4] * v[0] + mat[5] * v[1] + mat[6] * v[2] + mat[7] * v[3]) / s;
  out[2] = (mat[8] * v[0] + mat[9] * v[1] + mat[10] * v[2] + mat[11] * v[3]) / s;
}
```