user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<myShadowMatrix>:
  endbr64
  sub    $0x58,%rsp
  movss  (%rdi),%xmm4
  movss  0x4(%rdi),%xmm3
  movss  (%rsi),%xmm7
  movss  0x4(%rsi),%xmm6
  movaps %xmm4,%xmm0
  movaps %xmm3,%xmm12
  movss  0x8(%rdi),%xmm2
  movss  0x8(%rsi),%xmm5
  mulss  %xmm7,%xmm0
  movss  0xc(%rdi),%xmm10
  movss  0xc(%rsi),%xmm9
  mov    %rsp,%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  mulss  %xmm6,%xmm12
  movaps %xmm2,%xmm11
  movaps %xmm7,%xmm14
  mulss  %xmm5,%xmm11
  movaps %xmm10,%xmm8
  mulss  %xmm9,%xmm8
  mulss  %xmm3,%xmm14
  movaps %xmm0,%xmm1
  addss  %xmm12,%xmm1
  addss  %xmm11,%xmm1
  addss  %xmm8,%xmm1
  movaps %xmm1,%xmm13
  subss  %xmm0,%xmm13
  pxor   %xmm0,%xmm0
  movss  %xmm13,(%rsp)
  movaps %xmm0,%xmm13
  subss  %xmm14,%xmm13
  movaps %xmm7,%xmm14
  mulss  %xmm2,%xmm14
  mulss  %xmm10,%xmm7
  movss  %xmm13,0x10(%rsp)
  movaps %xmm0,%xmm13
  subss  %xmm14,%xmm13
  movss  %xmm13,0x20(%rsp)
  movaps %xmm0,%xmm13
  subss  %xmm7,%xmm13
  movaps %xmm0,%xmm7
  movss  %xmm13,0x30(%rsp)
  movaps %xmm4,%xmm13
  mulss  %xmm6,%xmm13
  subss  %xmm13,%xmm7
  movss  %xmm7,0x4(%rsp)
  movaps %xmm1,%xmm7
  subss  %xmm12,%xmm7
  movaps %xmm6,%xmm12
  mulss  %xmm2,%xmm12
  mulss  %xmm10,%xmm6
  movss  %xmm7,0x14(%rsp)
  mulss  %xmm9,%xmm2
  movaps %xmm0,%xmm7
  subss  %xmm12,%xmm7
  movss  %xmm7,0x24(%rsp)
  movaps %xmm0,%xmm7
  subss  %xmm6,%xmm7
  movaps %xmm0,%xmm6
  movss  %xmm7,0x34(%rsp)
  movaps %xmm4,%xmm7
  mulss  %xmm5,%xmm7
  mulss  %xmm9,%xmm4
  subss  %xmm7,%xmm6
  movaps %xmm3,%xmm7
  mulss  %xmm5,%xmm7
  mulss  %xmm10,%xmm5
  movss  %xmm6,0x8(%rsp)
  mulss  %xmm9,%xmm3
  movaps %xmm0,%xmm6
  subss  %xmm7,%xmm6
  movss  %xmm6,0x18(%rsp)
  movaps %xmm1,%xmm6
  subss  %xmm8,%xmm1
  subss  %xmm11,%xmm6
  movss  %xmm1,0x3c(%rsp)
  movss  %xmm6,0x28(%rsp)
  movaps %xmm0,%xmm6
  subss  %xmm5,%xmm6
  movaps %xmm0,%xmm5
  subss  %xmm4,%xmm5
  movaps %xmm0,%xmm4
  subss  %xmm2,%xmm0
  subss  %xmm3,%xmm4
  movss  %xmm6,0x38(%rsp)
  movss  %xmm5,0xc(%rsp)
  movss  %xmm4,0x1c(%rsp)
  movss  %xmm0,0x2c(%rsp)
  call   <glMultMatrixf@plt>
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L1
  add    $0x58,%rsp
  ret
L1:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void myShadowMatrix(float ground[4], float light[4]) {
  float dot;
  float shadowMat[4][4];
  dot = ground[0] * light[0] + ground[1] * light[1] + ground[2] * light[2] + ground[3] * light[3];
  shadowMat[0][0] = dot - light[0] * ground[0];
  shadowMat[1][0] = 0.0 - light[0] * ground[1];
  shadowMat[2][0] = 0.0 - light[0] * ground[2];
  shadowMat[3][0] = 0.0 - light[0] * ground[3];
  shadowMat[0][1] = 0.0 - light[1] * ground[0];
  shadowMat[1][1] = dot - light[1] * ground[1];
  shadowMat[2][1] = 0.0 - light[1] * ground[2];
  shadowMat[3][1] = 0.0 - light[1] * ground[3];
  shadowMat[0][2] = 0.0 - light[2] * ground[0];
  shadowMat[1][2] = 0.0 - light[2] * ground[1];
  shadowMat[2][2] = dot - light[2] * ground[2];
  shadowMat[3][2] = 0.0 - light[2] * ground[3];
  shadowMat[0][3] = 0.0 - light[3] * ground[0];
  shadowMat[1][3] = 0.0 - light[3] * ground[1];
  shadowMat[2][3] = 0.0 - light[3] * ground[2];
  shadowMat[3][3] = dot - light[3] * ground[3];
  glMultMatrixf((const GLfloat *)shadowMat);
}
```