user: What is the c source code of the assembly code below?

```asm
<fsquare_inner>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%eax
  imul   %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%eax
  imul   %eax,%edx
  mov    -0x8(%rbp),%rax
  add    $0x4,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x8,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0xc,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  shl    $0x2,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rax,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x10,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x14,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x18,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x1c,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  mov    %edx,%esi
  imul   %eax,%esi
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rsi,%rax,1),%edi
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  mov    %edx,%esi
  imul   %eax,%esi
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %esi,%eax
  add    %eax,%eax
  add    %edi,%eax
  lea    (%rax,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x20,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x24,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%esi
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x4,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %ecx,%eax
  add    %eax,%eax
  lea    (%rsi,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x28,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x2c,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  mov    %edx,%esi
  imul   %eax,%esi
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  mov    %edx,%edi
  imul   %eax,%edi
  mov    -0x10(%rbp),%rax
  add    $0xc,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %edi,%eax
  add    %eax,%eax
  add    %esi,%eax
  lea    (%rax,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x30,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x34,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x14,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  add    %eax,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x38,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x18,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x8(%rbp),%rax
  add    $0x3c,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x10(%rbp),%rax
  add    $0x1c,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %edx,%eax
  lea    0x0(,%rax,4),%edx
  mov    -0x8(%rbp),%rax
  add    $0x40,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x20,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %eax,%edx
  mov    -0x8(%rbp),%rax
  add    $0x44,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  add    $0x24,%rax
  mov    (%rax),%eax
  imul   %eax,%edx
  mov    -0x8(%rbp),%rax
  add    $0x48,%rax
  add    %edx,%edx
  mov    %edx,(%rax)
  nop
  pop    %rbp
  ret
```

assistant: ```c
void fsquare_inner(int64_t *output, const int64_t *in) {
  output[0] = ((int64_t)((int32_t)in[0])) * ((int32_t)in[0]);
  output[1] = 2 * ((int64_t)((int32_t)in[0])) * ((int32_t)in[1]);
  output[2] = 2 * (((int64_t)((int32_t)in[1])) * ((int32_t)in[1]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[2]));
  output[3] = 2 * (((int64_t)((int32_t)in[1])) * ((int32_t)in[2]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[3]));
  output[4] = ((int64_t)((int32_t)in[2])) * ((int32_t)in[2]) + 4 * ((int64_t)((int32_t)in[1])) * ((int32_t)in[3]) + 2 * ((int64_t)((int32_t)in[0])) * ((int32_t)in[4]);
  output[5] = 2 * (((int64_t)((int32_t)in[2])) * ((int32_t)in[3]) + ((int64_t)((int32_t)in[1])) * ((int32_t)in[4]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[5]));
  output[6] = 2 * (((int64_t)((int32_t)in[3])) * ((int32_t)in[3]) + ((int64_t)((int32_t)in[2])) * ((int32_t)in[4]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[6]) + 2 * ((int64_t)((int32_t)in[1])) * ((int32_t)in[5]));
  output[7] = 2 * (((int64_t)((int32_t)in[3])) * ((int32_t)in[4]) + ((int64_t)((int32_t)in[2])) * ((int32_t)in[5]) + ((int64_t)((int32_t)in[1])) * ((int32_t)in[6]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[7]));
  output[8] = ((int64_t)((int32_t)in[4])) * ((int32_t)in[4]) + 2 * (((int64_t)((int32_t)in[2])) * ((int32_t)in[6]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[8]) + 2 * (((int64_t)((int32_t)in[1])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[3])) * ((int32_t)in[5])));
  output[9] = 2 * (((int64_t)((int32_t)in[4])) * ((int32_t)in[5]) + ((int64_t)((int32_t)in[3])) * ((int32_t)in[6]) + ((int64_t)((int32_t)in[2])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[1])) * ((int32_t)in[8]) + ((int64_t)((int32_t)in[0])) * ((int32_t)in[9]));
  output[10] = 2 * (((int64_t)((int32_t)in[5])) * ((int32_t)in[5]) + ((int64_t)((int32_t)in[4])) * ((int32_t)in[6]) + ((int64_t)((int32_t)in[2])) * ((int32_t)in[8]) + 2 * (((int64_t)((int32_t)in[3])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[1])) * ((int32_t)in[9])));
  output[11] = 2 * (((int64_t)((int32_t)in[5])) * ((int32_t)in[6]) + ((int64_t)((int32_t)in[4])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[3])) * ((int32_t)in[8]) + ((int64_t)((int32_t)in[2])) * ((int32_t)in[9]));
  output[12] = ((int64_t)((int32_t)in[6])) * ((int32_t)in[6]) + 2 * (((int64_t)((int32_t)in[4])) * ((int32_t)in[8]) + 2 * (((int64_t)((int32_t)in[5])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[3])) * ((int32_t)in[9])));
  output[13] = 2 * (((int64_t)((int32_t)in[6])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[5])) * ((int32_t)in[8]) + ((int64_t)((int32_t)in[4])) * ((int32_t)in[9]));
  output[14] = 2 * (((int64_t)((int32_t)in[7])) * ((int32_t)in[7]) + ((int64_t)((int32_t)in[6])) * ((int32_t)in[8]) + 2 * ((int64_t)((int32_t)in[5])) * ((int32_t)in[9]));
  output[15] = 2 * (((int64_t)((int32_t)in[7])) * ((int32_t)in[8]) + ((int64_t)((int32_t)in[6])) * ((int32_t)in[9]));
  output[16] = ((int64_t)((int32_t)in[8])) * ((int32_t)in[8]) + 4 * ((int64_t)((int32_t)in[7])) * ((int32_t)in[9]);
  output[17] = 2 * ((int64_t)((int32_t)in[8])) * ((int32_t)in[9]);
  output[18] = 2 * ((int64_t)((int32_t)in[9])) * ((int32_t)in[9]);
}
```