user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<mul_mtx44>:
  endbr64
  sub    $0x58,%rsp
  mov    %rdi,%rdx
  mov    %rsi,%rax
  mov    %fs:0x28,%rcx
  mov    %rcx,0x48(%rsp)
  xor    %ecx,%ecx
  movss  (%rdi),%xmm14
  movss  (%rsi),%xmm1
  movss  0x4(%rdi),%xmm13
  movss  0x10(%rsi),%xmm15
  movss  0x8(%rdi),%xmm3
  movss  0x20(%rsi),%xmm8
  movss  0xc(%rdi),%xmm6
  movss  0x30(%rsi),%xmm7
  movaps %xmm14,%xmm0
  mulss  %xmm1,%xmm0
  movaps %xmm13,%xmm2
  mulss  %xmm15,%xmm2
  addss  %xmm2,%xmm0
  movaps %xmm3,%xmm2
  mulss  %xmm8,%xmm2
  addss  %xmm2,%xmm0
  movaps %xmm6,%xmm2
  mulss  %xmm7,%xmm2
  addss  %xmm2,%xmm0
  movss  %xmm0,(%rsp)
  mov    0x4(%rsi),%esi
  movss  0x14(%rax),%xmm5
  movss  0x24(%rax),%xmm4
  mov    0x34(%rax),%ecx
  movd   %esi,%xmm0
  mulss  %xmm14,%xmm0
  movaps %xmm13,%xmm2
  mulss  %xmm5,%xmm2
  addss  %xmm2,%xmm0
  movaps %xmm3,%xmm2
  mulss  %xmm4,%xmm2
  addss  %xmm2,%xmm0
  movd   %ecx,%xmm2
  mulss  %xmm6,%xmm2
  addss  %xmm2,%xmm0
  movss  %xmm0,0x4(%rsp)
  movss  0x8(%rax),%xmm2
  movss  0x18(%rax),%xmm12
  movss  0x28(%rax),%xmm11
  movss  0x38(%rax),%xmm10
  movaps %xmm14,%xmm0
  mulss  %xmm2,%xmm0
  movaps %xmm13,%xmm9
  mulss  %xmm12,%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm3,%xmm0
  mulss  %xmm11,%xmm0
  addss  %xmm9,%xmm0
  movaps %xmm6,%xmm9
  mulss  %xmm10,%xmm9
  addss  %xmm9,%xmm0
  movss  %xmm0,0x8(%rsp)
  movss  0xc(%rax),%xmm9
  mov    0x1c(%rax),%r8d
  mov    0x2c(%rax),%edi
  mov    0x3c(%rax),%eax
  mulss  %xmm9,%xmm14
  movd   %r8d,%xmm0
  mulss  %xmm0,%xmm13
  addss  %xmm13,%xmm14
  movd   %edi,%xmm13
  mulss  %xmm3,%xmm13
  addss  %xmm14,%xmm13
  movd   %eax,%xmm3
  mulss  %xmm3,%xmm6
  addss  %xmm6,%xmm13
  movss  %xmm13,0xc(%rsp)
  movss  0x10(%rdx),%xmm0
  movss  0x14(%rdx),%xmm14
  movss  0x18(%rdx),%xmm13
  movss  0x1c(%rdx),%xmm6
  movaps %xmm1,%xmm3
  mulss  %xmm0,%xmm3
  mulss  %xmm14,%xmm15
  addss  %xmm3,%xmm15
  movaps %xmm8,%xmm3
  mulss  %xmm13,%xmm3
  addss  %xmm15,%xmm3
  movaps %xmm7,%xmm15
  mulss  %xmm6,%xmm15
  addss  %xmm15,%xmm3
  movss  %xmm3,0x10(%rsp)
  movd   %esi,%xmm3
  mulss  %xmm0,%xmm3
  mulss  %xmm14,%xmm5
  addss  %xmm3,%xmm5
  mulss  %xmm13,%xmm4
  addss  %xmm5,%xmm4
  movd   %ecx,%xmm3
  mulss  %xmm6,%xmm3
  addss  %xmm3,%xmm4
  movss  %xmm4,0x14(%rsp)
  mulss  %xmm0,%xmm2
  mulss  %xmm14,%xmm12
  addss  %xmm12,%xmm2
  mulss  %xmm13,%xmm11
  addss  %xmm11,%xmm2
  mulss  %xmm6,%xmm10
  addss  %xmm10,%xmm2
  movss  %xmm2,0x18(%rsp)
  mulss  %xmm9,%xmm0
  movd   %r8d,%xmm2
  mulss  %xmm14,%xmm2
  addss  %xmm2,%xmm0
  movd   %edi,%xmm2
  mulss  %xmm13,%xmm2
  addss  %xmm2,%xmm0
  movd   %eax,%xmm2
  mulss  %xmm6,%xmm2
  addss  %xmm2,%xmm0
  movss  %xmm0,0x1c(%rsp)
  mulss  0x20(%rdx),%xmm1
  mulss  0x24(%rdx),%xmm9
  addss  %xmm9,%xmm1
  mulss  0x28(%rdx),%xmm8
  addss  %xmm8,%xmm1
  mulss  0x2c(%rdx),%xmm7
  addss  %xmm7,%xmm1
  movss  %xmm1,0x20(%rsp)
  movdqa (%rsp),%xmm7
  movups %xmm7,(%rdx)
  movdqa 0x10(%rsp),%xmm5
  movups %xmm5,0x10(%rdx)
  mov    0x20(%rsp),%eax
  mov    %eax,0x20(%rdx)
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  add    $0x58,%rsp
  ret
L4:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void mul_mtx44(float *a, const float *b) {
  float res[16];
  res[0] = (a[0]) * (b[0]) + (a[1]) * (b[4]) + (a[2]) * (b[8]) + (a[3]) * (b[12]);
  res[1] = (a[0]) * (b[1]) + (a[1]) * (b[5]) + (a[2]) * (b[9]) + (a[3]) * (b[13]);
  res[2] = (a[0]) * (b[2]) + (a[1]) * (b[6]) + (a[2]) * (b[10]) + (a[3]) * (b[14]);
  res[3] = (a[0]) * (b[3]) + (a[1]) * (b[7]) + (a[2]) * (b[11]) + (a[3]) * (b[15]);
  res[4] = (a[4]) * (b[0]) + (a[5]) * (b[4]) + (a[6]) * (b[8]) + (a[7]) * (b[12]);
  res[5] = (a[4]) * (b[1]) + (a[5]) * (b[5]) + (a[6]) * (b[9]) + (a[7]) * (b[13]);
  res[6] = (a[4]) * (b[2]) + (a[5]) * (b[6]) + (a[6]) * (b[10]) + (a[7]) * (b[14]);
  res[7] = (a[4]) * (b[3]) + (a[5]) * (b[7]) + (a[6]) * (b[11]) + (a[7]) * (b[15]);
  res[8] = (a[8]) * (b[0]) + (a[9]) * (b[3]) + (a[10]) * (b[8]) + (a[11]) * (b[12]);
  res[9] = (a[8]) * (b[1]) + (a[9]) * (b[4]) + (a[10]) * (b[9]) + (a[11]) * (b[13]);
  res[10] = (a[8]) * (b[2]) + (a[9]) * (b[5]) + (a[10]) * (b[10]) + (a[11]) * (b[14]);
  res[11] = (a[8]) * (b[3]) + (a[9]) * (b[6]) + (a[10]) * (b[11]) + (a[11]) * (b[15]);
  res[12] = (a[12]) * (b[0]) + (a[13]) * (b[3]) + (a[14]) * (b[8]) + (a[15]) * (b[12]);
  res[13] = (a[12]) * (b[1]) + (a[13]) * (b[4]) + (a[14]) * (b[9]) + (a[15]) * (b[13]);
  res[14] = (a[12]) * (b[2]) + (a[13]) * (b[5]) + (a[14]) * (b[10]) + (a[15]) * (b[14]);
  res[15] = (a[12]) * (b[3]) + (a[13]) * (b[6]) + (a[14]) * (b[11]) + (a[15]) * (b[15]);
  memcpy(a, &res, 9 * sizeof(float));
}
```