user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<myShadowMatrix>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %rsi,-0x70(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x68(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x70(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm2
  mov    -0x70(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm2
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x68(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm2
  mov    -0x70(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  movss  %xmm0,-0x54(%rbp)
  mov    -0x70(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  movss  -0x54(%rbp),%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x50(%rbp)
  mov    -0x70(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x40(%rbp)
  mov    -0x70(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x30(%rbp)
  mov    -0x70(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x20(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x4c(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  movss  -0x54(%rbp),%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x3c(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x2c(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x1c(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x48(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x38(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  movss  -0x54(%rbp),%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x28(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x18(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x44(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x34(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x24(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm1
  mov    -0x68(%rbp),%rax
  add    $0xc,%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  movss  -0x54(%rbp),%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x14(%rbp)
  lea    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <glMultMatrixf@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L2
  call   <__stack_chk_fail@plt>
L2:
  leave
  ret
```

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);
}
```