user: 这段汇编代码用C语言表示是什么样的?

```asm
<normals>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  jmp    L35
L33:
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  mov    %rax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  movss  %xmm0,-0x18(%rbp)
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x4(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  movss  %xmm0,-0x14(%rbp)
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  lea    0x8(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  movss  %xmm0,-0x10(%rbp)
  movq   $0x3,-0x8(%rbp)
  jmp    L27
L21:
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0xc(%rbp)
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  addss  -0x18(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  addss  -0x14(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  add    $0x2,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  add    $0x2,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  addss  -0x10(%rbp),%xmm0
  movss  %xmm0,(%rax)
L27:
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  test   %rax,%rax
  jne    L21
L35:
  mov    -0x40(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x40(%rbp)
  test   %rax,%rax
  jne    L33
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void normals(float *normal_vectors, uint16_t *triangles, float *result, size_t amount) {
  uint16_t vertex;
  float normal_x, normal_y, normal_z;
  size_t j;
  while (amount-- > 0) {
    normal_x = normal_vectors[amount * 3 + 0];
    normal_y = normal_vectors[amount * 3 + 1];
    normal_z = normal_vectors[amount * 3 + 2];
    j = 3;
    while (j-- > 0) {
      vertex = triangles[amount * 3 + j];
      result[vertex * 3 + 0] += normal_x;
      result[vertex * 3 + 1] += normal_y;
      result[vertex * 3 + 2] += normal_z;
    }
  }
}
```