user: 这段汇编代码用C语言表示是什么样的？

```asm
<m4prod>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  mov    %rdi,-0x10(%rbp)
  mov    %rsi,-0x18(%rbp)
  mov    %rdx,-0x20(%rbp)
  mov    $0x0,%ebx
  jmp    L5
L4:
  mov    -0x18(%rbp),%rax
  movss  (%rax),%xmm1
  lea    0x0(,%rbx,4),%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x1,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x20,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x2,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x30,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x3,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  lea    0x0(,%rbx,4),%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  addss  %xmm1,%xmm0
  movss  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm1
  lea    0x0(,%rbx,4),%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x14,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x1,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x24,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x2,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x34,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x3,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  lea    0x0(,%rbx,4),%eax
  add    $0x1,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  addss  %xmm1,%xmm0
  movss  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm1
  lea    0x0(,%rbx,4),%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x1,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x28,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x2,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x38,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x3,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  lea    0x0(,%rbx,4),%eax
  add    $0x2,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  addss  %xmm1,%xmm0
  movss  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm1
  lea    0x0(,%rbx,4),%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x1c,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x1,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x2c,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x2,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x3c,%rax
  movss  (%rax),%xmm2
  lea    0x0(,%rbx,4),%eax
  add    $0x3,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  lea    0x0(,%rbx,4),%eax
  add    $0x3,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  addss  %xmm1,%xmm0
  movss  %xmm0,(%rax)
  add    $0x1,%ebx
L5:
  cmp    $0x3,%ebx
  jbe    L4
  nop
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void m4prod(float *restrict A, const float *B, const float *C) {
  register unsigned j;
  for (j = 0; j < 4; ++j) {
    (A)[(0) + (j) * (4)] = ((B)[(0) + (0) * (4)] * (C)[(0) + (j) * (4)] + (B)[(0) + (1) * (4)] * (C)[(1) + (j) * (4)] + (B)[(0) + (2) * (4)] * (C)[(2) + (j) * (4)] + (B)[(0) + (3) * (4)] * (C)[(3) + (j) * (4)]);
    (A)[(1) + (j) * (4)] = ((B)[(1) + (0) * (4)] * (C)[(0) + (j) * (4)] + (B)[(1) + (1) * (4)] * (C)[(1) + (j) * (4)] + (B)[(1) + (2) * (4)] * (C)[(2) + (j) * (4)] + (B)[(1) + (3) * (4)] * (C)[(3) + (j) * (4)]);
    (A)[(2) + (j) * (4)] = ((B)[(2) + (0) * (4)] * (C)[(0) + (j) * (4)] + (B)[(2) + (1) * (4)] * (C)[(1) + (j) * (4)] + (B)[(2) + (2) * (4)] * (C)[(2) + (j) * (4)] + (B)[(2) + (3) * (4)] * (C)[(3) + (j) * (4)]);
    (A)[(3) + (j) * (4)] = ((B)[(3) + (0) * (4)] * (C)[(0) + (j) * (4)] + (B)[(3) + (1) * (4)] * (C)[(1) + (j) * (4)] + (B)[(3) + (2) * (4)] * (C)[(2) + (j) * (4)] + (B)[(3) + (3) * (4)] * (C)[(3) + (j) * (4)]);
  }
}
```