user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<multiplication>:
  endbr64
  movabs $0x200000002,%rcx
  push   %r15
  movabs $0x300000003,%rdx
  movabs $0x100000001,%rsi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xe8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xd8(%rsp)
  xor    %eax,%eax
  mov    %rsi,0x10(%rsp)
  movabs $0x400000004,%rax
  lea    0x90(%rsp),%r15
  mov    %rsi,0x18(%rsp)
  lea    0xd0(%rsp),%r14
  mov    %rcx,0x20(%rsp)
  mov    %rcx,0x28(%rsp)
  mov    %rdx,0x30(%rsp)
  mov    %rdx,0x38(%rsp)
  movl   $0x1,0x54(%rsp)
  mov    %rsi,0x58(%rsp)
  mov    %rcx,0x60(%rsp)
  mov    %rcx,0x68(%rsp)
  mov    %rdx,0x70(%rsp)
  mov    %rdx,0x78(%rsp)
  mov    %rax,0x40(%rsp)
  mov    %rax,0x48(%rsp)
  mov    %rax,0x80(%rsp)
  mov    %rax,0x88(%rsp)
  mov    %r15,%rax
L49:
  movl   $0x0,(%rax)
  add    $0x10,%rax
  movl   $0x0,-0xc(%rax)
  movl   $0x0,-0x8(%rax)
  movl   $0x0,-0x4(%rax)
  cmp    %r14,%rax
  jne    L49
  lea    0x10(%rsp),%rax
  mov    $0x1,%esi
  lea    0x50(%rsp),%r13
  movl   $0xf4240,0x4(%rsp)
  mov    %rax,0x8(%rsp)
  lea    0x60(%rsp),%r11
  nopl   0x0(%rax)
L142:
  mov    0x8(%rsp),%r10
  mov    %r15,%r12
  mov    %esi,%ebx
  mov    %r10,%rbp
L68:
  mov    %r13,%r8
  mov    %r12,%r9
  mov    $0x1,%eax
L27:
  mov    %ebx,%edi
  mov    (%r9),%ecx
  xor    %edx,%edx
  imul   %edi,%eax
  add    $0x1,%rdx
  add    %eax,%ecx
  cmp    $0x4,%rdx
  je     L24
L20:
  mov    %rdx,%rax
  mov    (%r10,%rdx,4),%edi
  add    $0x1,%rdx
  shl    $0x4,%rax
  mov    (%r8,%rax,1),%eax
  imul   %edi,%eax
  add    %eax,%ecx
  cmp    $0x4,%rdx
  jne    L20
L24:
  add    $0x4,%r8
  mov    %ecx,(%r9)
  add    $0x4,%r9
  cmp    %r11,%r8
  je     L113
  mov    (%r8),%eax
  jmp    L27
  nopl   0x0(%rax)
L113:
  add    $0x10,%r10
  add    $0x10,%r12
  cmp    %r13,%r10
  je     L110
  mov    (%r10),%ebx
  jmp    L68
  nopw   0x0(%rax,%rax,1)
L110:
  mov    %r15,%rdi
L151:
  mov    %r13,%rcx
  mov    %rbp,%r8
  mov    $0x1,%edx
L154:
  xor    %eax,%eax
  imul   (%rdi,%rax,4),%edx
  add    $0x1,%rax
  add    %edx,%esi
  cmp    $0x4,%rax
  je     L81
L102:
  mov    %rax,%rdx
  shl    $0x4,%rdx
  mov    (%rcx,%rdx,1),%edx
  imul   (%rdi,%rax,4),%edx
  add    $0x1,%rax
  add    %edx,%esi
  cmp    $0x4,%rax
  jne    L102
L81:
  add    $0x4,%rcx
  mov    %esi,(%r8)
  add    $0x4,%r8
  cmp    %r11,%rcx
  je     L18
  mov    (%r8),%esi
  mov    (%rcx),%edx
  jmp    L154
  nopl   0x0(%rax)
L18:
  add    $0x10,%rdi
  add    $0x10,%rbp
  cmp    %r14,%rdi
  je     L104
  mov    0x0(%rbp),%esi
  jmp    L151
  nopw   0x0(%rax,%rax,1)
L104:
  subl   $0x1,0x4(%rsp)
  je     L37
  mov    0x10(%rsp),%esi
  jmp    L142
L37:
  xor    %eax,%eax
L123:
  add    (%r15),%eax
  add    $0x10,%r15
  add    -0xc(%r15),%eax
  add    -0x8(%r15),%eax
  add    -0x4(%r15),%eax
  cmp    %r14,%r15
  jne    L123
  mov    0xd8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L43
  add    $0xe8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L43:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int multiplication() {
  int mat1[4][4] = {{1, 1, 1, 1}, {2, 2, 2, 2}, {3, 3, 3, 3}, {4, 4, 4, 4}};
  int mat2[4][4] = {{1, 1, 1, 1}, {2, 2, 2, 2}, {3, 3, 3, 3}, {4, 4, 4, 4}};
  int res[4][4];
  int i, j, k;
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      res[i][j] = 0;
    }
  }
  int z;
  for (z = 0; z < 1000000; ++z) {
    for (i = 0; i < 4; i++) {
      for (j = 0; j < 4; j++) {
        for (k = 0; k < 4; k++)
          res[i][j] += mat1[i][k] * mat2[k][j];
      }
    }
    for (i = 0; i < 4; i++) {
      for (j = 0; j < 4; j++) {
        for (k = 0; k < 4; k++)
          mat1[i][j] += res[i][k] * mat2[k][j];
      }
    }
  }
  int r = 0;
  for (j = 0; j < 4; j++) {
    for (k = 0; k < 4; k++)
      r += res[j][k];
  }
  return r;
}
```