user: Translate the below assembly code into C programming language:

```asm
<kernel_dttmm_uu_nt_4x4_lib4>:
  endbr64
  sub    $0x20,%rsp
  movsd  (%rsi),%xmm1
  movsd  0x10(%rdx),%xmm5
  mov    %edi,%r9d
  movsd  0x20(%rsi),%xmm2
  movsd  0x30(%rdx),%xmm6
  pxor   %xmm0,%xmm0
  mov    %rcx,%r8
  mulsd  %xmm1,%xmm5
  movsd  (%rdx),%xmm10
  movsd  0x8(%rdx),%xmm9
  lea    0x80(%rsi),%rax
  movapd %xmm2,%xmm12
  movapd %xmm2,%xmm14
  movsd  0x38(%rdx),%xmm4
  movsd  0x20(%rdx),%xmm8
  mulsd  %xmm6,%xmm12
  movsd  0x28(%rdx),%xmm7
  movsd  0x40(%rdx),%xmm11
  movapd %xmm2,%xmm13
  mulsd  %xmm1,%xmm10
  lea    0x80(%rdx),%rdi
  mulsd  %xmm1,%xmm9
  mulsd  0x18(%rdx),%xmm1
  addsd  %xmm0,%xmm5
  mulsd  %xmm8,%xmm14
  mulsd  %xmm7,%xmm13
  addsd  %xmm5,%xmm12
  movsd  0x40(%rsi),%xmm5
  addsd  %xmm0,%xmm10
  mulsd  %xmm4,%xmm2
  addsd  %xmm0,%xmm9
  addsd  %xmm0,%xmm1
  movapd %xmm5,%xmm15
  mulsd  %xmm11,%xmm15
  addsd  %xmm10,%xmm14
  movsd  0x48(%rdx),%xmm10
  addsd  %xmm9,%xmm13
  movsd  0x50(%rdx),%xmm9
  movapd %xmm1,%xmm3
  movsd  0x28(%rsi),%xmm1
  addsd  %xmm3,%xmm2
  movsd  0x50(%rsi),%xmm3
  mulsd  %xmm1,%xmm8
  mulsd  %xmm1,%xmm7
  addsd  %xmm14,%xmm15
  mulsd  %xmm1,%xmm6
  mulsd  %xmm4,%xmm1
  movsd  0x48(%rsi),%xmm4
  movapd %xmm4,%xmm14
  addsd  %xmm0,%xmm8
  mulsd  %xmm11,%xmm14
  addsd  %xmm0,%xmm7
  mulsd  %xmm3,%xmm11
  addsd  %xmm0,%xmm6
  addsd  %xmm0,%xmm1
  addsd  %xmm8,%xmm14
  movapd %xmm5,%xmm8
  mulsd  %xmm10,%xmm8
  addsd  %xmm0,%xmm11
  addsd  %xmm8,%xmm13
  movapd %xmm4,%xmm8
  mulsd  %xmm10,%xmm8
  mulsd  %xmm3,%xmm10
  addsd  %xmm7,%xmm8
  movapd %xmm5,%xmm7
  mulsd  %xmm9,%xmm7
  addsd  %xmm0,%xmm10
  mulsd  0x58(%rdx),%xmm5
  movsd  %xmm8,-0x68(%rsp)
  addsd  %xmm7,%xmm12
  movapd %xmm4,%xmm7
  mulsd  %xmm9,%xmm7
  mulsd  %xmm3,%xmm9
  mulsd  0x58(%rdx),%xmm3
  mulsd  0x58(%rdx),%xmm4
  addsd  %xmm6,%xmm7
  movapd %xmm5,%xmm6
  movsd  0x60(%rdx),%xmm5
  addsd  %xmm2,%xmm6
  addsd  %xmm0,%xmm9
  addsd  %xmm0,%xmm3
  addsd  %xmm1,%xmm4
  movsd  %xmm7,-0x50(%rsp)
  movsd  0x78(%rsi),%xmm7
  movsd  %xmm9,-0x48(%rsp)
  movsd  %xmm3,-0x28(%rsp)
  movsd  0x60(%rsi),%xmm3
  movsd  %xmm4,-0x30(%rsp)
  movsd  0x68(%rsi),%xmm4
  movapd %xmm3,%xmm8
  movsd  %xmm6,-0x38(%rsp)
  movsd  0x70(%rsi),%xmm6
  movsd  0x68(%rdx),%xmm2
  mulsd  %xmm5,%xmm8
  movsd  0x70(%rdx),%xmm1
  movsd  0x78(%rdx),%xmm9
  addsd  %xmm15,%xmm8
  movsd  -0x68(%rsp),%xmm15
  movsd  %xmm8,-0x18(%rsp)
  movapd %xmm4,%xmm8
  mulsd  %xmm5,%xmm8
  addsd  %xmm14,%xmm8
  movapd %xmm6,%xmm14
  mulsd  %xmm5,%xmm14
  mulsd  %xmm7,%xmm5
  movsd  %xmm8,-0x78(%rsp)
  addsd  %xmm11,%xmm14
  movapd %xmm14,%xmm11
  movsd  %xmm14,-0x10(%rsp)
  movapd %xmm5,%xmm14
  addsd  %xmm0,%xmm14
  movsd  %xmm14,-0x70(%rsp)
  movapd %xmm3,%xmm14
  mulsd  %xmm2,%xmm14
  addsd  %xmm13,%xmm14
  movapd %xmm14,%xmm8
  movapd %xmm4,%xmm14
  mulsd  %xmm2,%xmm14
  addsd  %xmm14,%xmm15
  movapd %xmm6,%xmm14
  mulsd  %xmm2,%xmm14
  mulsd  %xmm7,%xmm2
  addsd  %xmm10,%xmm14
  addsd  %xmm0,%xmm2
  movsd  %xmm14,-0x68(%rsp)
  movsd  %xmm2,-0x60(%rsp)
  movapd %xmm3,%xmm2
  mulsd  %xmm1,%xmm2
  mulsd  %xmm9,%xmm3
  addsd  %xmm12,%xmm2
  movsd  %xmm2,-0x58(%rsp)
  movapd %xmm4,%xmm2
  mulsd  %xmm1,%xmm2
  addsd  -0x50(%rsp),%xmm2
  mulsd  %xmm9,%xmm4
  movsd  %xmm2,-0x50(%rsp)
  movapd %xmm6,%xmm2
  mulsd  %xmm1,%xmm2
  mulsd  %xmm7,%xmm1
  addsd  -0x48(%rsp),%xmm2
  mulsd  %xmm9,%xmm7
  mulsd  %xmm9,%xmm6
  movsd  %xmm2,-0x48(%rsp)
  movsd  -0x38(%rsp),%xmm2
  addsd  -0x28(%rsp),%xmm6
  addsd  %xmm0,%xmm1
  addsd  %xmm3,%xmm2
  movsd  %xmm6,-0x28(%rsp)
  movsd  %xmm1,-0x40(%rsp)
  movsd  -0x30(%rsp),%xmm1
  movsd  %xmm2,-0x38(%rsp)
  addsd  %xmm4,%xmm1
  movsd  %xmm1,-0x30(%rsp)
  movapd %xmm7,%xmm1
  addsd  %xmm0,%xmm1
  movsd  %xmm1,-0x20(%rsp)
  cmp    $0x8,%r9d
  jle    L4
  sub    $0x9,%r9d
  movapd %xmm15,%xmm9
  movsd  -0x18(%rsp),%xmm15
  movapd %xmm8,%xmm7
  shr    $0x2,%r9d
  lea    0x2(%r9),%rdx
  shl    $0x7,%rdx
  lea    (%rsi,%rdx,1),%rcx
  mov    %rdi,%rdx
  nopw   0x0(%rax,%rax,1)
L24:
  movsd  (%rdx),%xmm0
  movsd  (%rax),%xmm4
  sub    $0xffffffffffffff80,%rax
  sub    $0xffffffffffffff80,%rdx
  movsd  -0x70(%rax),%xmm2
  movsd  -0x78(%rdx),%xmm14
  movapd %xmm4,%xmm13
  movsd  -0x78(%rax),%xmm3
  movsd  -0x70(%rdx),%xmm5
  movapd %xmm2,%xmm8
  movsd  -0x68(%rax),%xmm1
  movsd  -0x68(%rdx),%xmm6
  movapd %xmm2,%xmm10
  mulsd  %xmm0,%xmm8
  movapd %xmm3,%xmm12
  mulsd  %xmm0,%xmm13
  mulsd  %xmm0,%xmm12
  mulsd  %xmm1,%xmm0
  addsd  -0x78(%rsp),%xmm12
  addsd  -0x70(%rsp),%xmm0
  mulsd  %xmm14,%xmm10
  addsd  %xmm8,%xmm11
  movapd %xmm4,%xmm8
  addsd  -0x68(%rsp),%xmm10
  mulsd  %xmm14,%xmm8
  addsd  %xmm15,%xmm13
  movapd %xmm3,%xmm15
  mulsd  %xmm14,%xmm15
  mulsd  %xmm1,%xmm14
  addsd  -0x60(%rsp),%xmm14
  addsd  %xmm7,%xmm8
  movapd %xmm4,%xmm7
  mulsd  %xmm5,%xmm7
  addsd  %xmm9,%xmm15
  movapd %xmm2,%xmm9
  movsd  %xmm14,-0x78(%rsp)
  addsd  -0x58(%rsp),%xmm7
  mulsd  %xmm6,%xmm4
  addsd  -0x38(%rsp),%xmm4
  mulsd  %xmm5,%xmm9
  mulsd  %xmm6,%xmm2
  addsd  -0x48(%rsp),%xmm9
  movsd  %xmm7,-0x70(%rsp)
  movapd %xmm3,%xmm7
  addsd  -0x28(%rsp),%xmm2
  mulsd  %xmm5,%xmm7
  mulsd  %xmm6,%xmm3
  addsd  -0x50(%rsp),%xmm7
  movsd  %xmm4,-0x50(%rsp)
  movsd  -0x60(%rax),%xmm4
  mulsd  %xmm1,%xmm5
  addsd  -0x30(%rsp),%xmm3
  movsd  %xmm9,-0x60(%rsp)
  mulsd  %xmm6,%xmm1
  addsd  -0x40(%rsp),%xmm5
  movsd  %xmm2,-0x40(%rsp)
  movsd  -0x50(%rax),%xmm2
  addsd  -0x20(%rsp),%xmm1
  movsd  %xmm7,-0x68(%rsp)
  movapd %xmm4,%xmm14
  movsd  %xmm3,-0x48(%rsp)
  movsd  -0x58(%rax),%xmm3
  movsd  %xmm5,-0x58(%rsp)
  movsd  %xmm1,-0x38(%rsp)
  movsd  -0x48(%rax),%xmm1
  movsd  -0x60(%rdx),%xmm7
  movsd  -0x58(%rdx),%xmm6
  movsd  -0x50(%rdx),%xmm5
  mulsd  %xmm7,%xmm14
  movsd  -0x48(%rdx),%xmm9
  addsd  %xmm13,%xmm14
  movapd %xmm3,%xmm13
  mulsd  %xmm7,%xmm13
  addsd  %xmm12,%xmm13
  movapd %xmm2,%xmm12
  mulsd  %xmm7,%xmm12
  mulsd  %xmm1,%xmm7
  addsd  %xmm12,%xmm11
  addsd  %xmm0,%xmm7
  movapd %xmm4,%xmm0
  mulsd  %xmm6,%xmm0
  addsd  %xmm0,%xmm8
  movapd %xmm3,%xmm0
  mulsd  %xmm6,%xmm0
  movapd %xmm0,%xmm12
  movapd %xmm2,%xmm0
  mulsd  %xmm6,%xmm0
  addsd  %xmm15,%xmm12
  movsd  -0x78(%rsp),%xmm15
  mulsd  %xmm1,%xmm6
  addsd  %xmm0,%xmm10
  movapd %xmm4,%xmm0
  mulsd  %xmm5,%xmm0
  addsd  %xmm6,%xmm15
  movsd  -0x48(%rsp),%xmm6
  addsd  -0x70(%rsp),%xmm0
  mulsd  %xmm9,%xmm4
  addsd  -0x50(%rsp),%xmm4
  movsd  %xmm15,-0x78(%rsp)
  movsd  %xmm0,-0x70(%rsp)
  movapd %xmm3,%xmm0
  mulsd  %xmm9,%xmm3
  movsd  %xmm4,-0x50(%rsp)
  movsd  -0x30(%rdx),%xmm4
  mulsd  %xmm5,%xmm0
  addsd  -0x68(%rsp),%xmm0
  addsd  %xmm3,%xmm6
  movsd  -0x40(%rax),%xmm3
  movsd  %xmm0,-0x68(%rsp)
  movapd %xmm2,%xmm0
  mulsd  %xmm9,%xmm2
  addsd  -0x40(%rsp),%xmm2
  mulsd  %xmm5,%xmm0
  movapd %xmm3,%xmm15
  movsd  %xmm6,-0x48(%rsp)
  movsd  -0x40(%rdx),%xmm6
  mulsd  %xmm1,%xmm5
  addsd  -0x60(%rsp),%xmm0
  mulsd  %xmm9,%xmm1
  addsd  -0x58(%rsp),%xmm5
  movsd  -0x28(%rdx),%xmm9
  mulsd  %xmm6,%xmm15
  movsd  %xmm2,-0x40(%rsp)
  movsd  -0x38(%rax),%xmm2
  addsd  -0x38(%rsp),%xmm1
  movsd  %xmm0,-0x60(%rsp)
  movsd  -0x28(%rax),%xmm0
  movsd  %xmm5,-0x58(%rsp)
  movsd  -0x38(%rdx),%xmm5
  movsd  %xmm1,-0x38(%rsp)
  movsd  -0x30(%rax),%xmm1
  addsd  %xmm14,%xmm15
  movapd %xmm2,%xmm14
  mulsd  %xmm6,%xmm14
  addsd  %xmm13,%xmm14
  movapd %xmm1,%xmm13
  mulsd  %xmm6,%xmm13
  mulsd  %xmm0,%xmm6
  addsd  %xmm13,%xmm11
  movsd  -0x78(%rsp),%xmm13
  addsd  %xmm6,%xmm7
  movapd %xmm3,%xmm6
  mulsd  %xmm5,%xmm6
  addsd  %xmm6,%xmm8
  movapd %xmm2,%xmm6
  mulsd  %xmm5,%xmm6
  addsd  %xmm6,%xmm12
  movapd %xmm1,%xmm6
  mulsd  %xmm5,%xmm6
  mulsd  %xmm0,%xmm5
  addsd  %xmm10,%xmm6
  movapd %xmm1,%xmm10
  mulsd  %xmm4,%xmm10
  addsd  %xmm5,%xmm13
  movapd %xmm3,%xmm5
  mulsd  %xmm4,%xmm5
  mulsd  %xmm9,%xmm3
  movsd  %xmm13,-0x30(%rsp)
  addsd  -0x70(%rsp),%xmm5
  addsd  -0x50(%rsp),%xmm3
  mulsd  %xmm9,%xmm1
  movsd  -0x60(%rsp),%xmm13
  addsd  -0x40(%rsp),%xmm1
  addsd  %xmm10,%xmm13
  movsd  %xmm5,-0x28(%rsp)
  movapd %xmm2,%xmm5
  movsd  -0x58(%rsp),%xmm10
  movsd  %xmm3,-0x8(%rsp)
  movsd  -0x20(%rax),%xmm3
  mulsd  %xmm4,%xmm5
  mulsd  %xmm0,%xmm4
  movsd  %xmm1,0x8(%rsp)
  movsd  -0x10(%rax),%xmm1
  addsd  -0x68(%rsp),%xmm5
  mulsd  %xmm9,%xmm2
  movsd  %xmm13,-0x18(%rsp)
  movapd %xmm3,%xmm13
  mulsd  %xmm9,%xmm0
  movsd  -0x20(%rdx),%xmm9
  addsd  -0x48(%rsp),%xmm2
  addsd  -0x38(%rsp),%xmm0
  movsd  %xmm5,-0x20(%rsp)
  movsd  -0x18(%rdx),%xmm5
  mulsd  %xmm9,%xmm13
  movsd  %xmm2,(%rsp)
  movsd  -0x18(%rax),%xmm2
  addsd  %xmm4,%xmm10
  movsd  -0x10(%rdx),%xmm4
  movsd  %xmm0,0x10(%rsp)
  movsd  -0x8(%rax),%xmm0
  movsd  %xmm10,-0x10(%rsp)
  movsd  -0x8(%rdx),%xmm10
  addsd  %xmm13,%xmm15
  movapd %xmm2,%xmm13
  mulsd  %xmm9,%xmm13
  addsd  %xmm14,%xmm13
  movapd %xmm1,%xmm14
  mulsd  %xmm9,%xmm14
  mulsd  %xmm0,%xmm9
  movsd  %xmm13,-0x78(%rsp)
  addsd  %xmm14,%xmm11
  addsd  %xmm7,%xmm9
  movapd %xmm3,%xmm7
  mulsd  %xmm5,%xmm7
  movsd  %xmm9,-0x70(%rsp)
  movapd %xmm2,%xmm9
  mulsd  %xmm5,%xmm9
  addsd  %xmm8,%xmm7
  movapd %xmm1,%xmm8
  mulsd  %xmm5,%xmm8
  mulsd  %xmm0,%xmm5
  addsd  %xmm12,%xmm9
  movsd  -0x30(%rsp),%xmm12
  addsd  %xmm6,%xmm8
  addsd  %xmm5,%xmm12
  movapd %xmm2,%xmm5
  mulsd  %xmm4,%xmm5
  addsd  -0x20(%rsp),%xmm5
  movsd  %xmm8,-0x68(%rsp)
  mulsd  %xmm10,%xmm2
  movsd  %xmm12,-0x60(%rsp)
  movapd %xmm3,%xmm12
  mulsd  %xmm4,%xmm12
  addsd  -0x28(%rsp),%xmm12
  mulsd  %xmm10,%xmm3
  movsd  %xmm12,-0x58(%rsp)
  movsd  %xmm5,-0x50(%rsp)
  movapd %xmm1,%xmm5
  addsd  (%rsp),%xmm2
  movsd  -0x8(%rsp),%xmm6
  mulsd  %xmm4,%xmm5
  addsd  -0x18(%rsp),%xmm5
  mulsd  %xmm0,%xmm4
  addsd  %xmm3,%xmm6
  mulsd  %xmm10,%xmm0
  movsd  %xmm2,-0x30(%rsp)
  mulsd  %xmm10,%xmm1
  movsd  %xmm5,-0x48(%rsp)
  movsd  -0x10(%rsp),%xmm5
  addsd  0x8(%rsp),%xmm1
  movsd  %xmm6,-0x38(%rsp)
  addsd  %xmm4,%xmm5
  movsd  0x10(%rsp),%xmm4
  movsd  %xmm1,-0x28(%rsp)
  addsd  %xmm0,%xmm4
  movsd  %xmm5,-0x40(%rsp)
  movsd  %xmm4,-0x20(%rsp)
  cmp    %rcx,%rax
  jne    L24
  add    $0x1,%r9
  movsd  %xmm15,-0x18(%rsp)
  movapd %xmm7,%xmm8
  movapd %xmm9,%xmm15
  shl    $0x7,%r9
  movsd  %xmm11,-0x10(%rsp)
  add    %r9,%rdi
L15:
  movsd  (%rcx),%xmm12
  movsd  0x8(%rdi),%xmm1
  movsd  0x8(%rcx),%xmm6
  movsd  0x10(%rcx),%xmm13
  movapd %xmm12,%xmm2
  movsd  0x10(%rdi),%xmm0
  movsd  0x18(%rcx),%xmm14
  movapd %xmm12,%xmm5
  mulsd  %xmm1,%xmm2
  movapd %xmm6,%xmm4
  movsd  (%rdi),%xmm7
  movsd  0x28(%rdi),%xmm10
  mulsd  %xmm1,%xmm4
  movsd  0x18(%rdi),%xmm3
  movapd %xmm13,%xmm9
  movsd  0x20(%rcx),%xmm11
  mulsd  %xmm0,%xmm5
  movsd  %xmm7,-0x8(%rsp)
  movapd %xmm12,%xmm7
  mulsd  %xmm3,%xmm7
  mulsd  %xmm3,%xmm9
  addsd  -0x38(%rsp),%xmm7
  addsd  %xmm8,%xmm2
  movapd %xmm6,%xmm8
  addsd  -0x28(%rsp),%xmm9
  addsd  %xmm15,%xmm4
  movsd  0x30(%rcx),%xmm15
  mulsd  %xmm3,%xmm8
  mulsd  %xmm14,%xmm3
  addsd  -0x30(%rsp),%xmm8
  movsd  %xmm2,(%rsp)
  movapd %xmm13,%xmm2
  addsd  -0x20(%rsp),%xmm3
  mulsd  %xmm1,%xmm2
  movsd  %xmm4,0x8(%rsp)
  movapd %xmm6,%xmm4
  addsd  -0x68(%rsp),%xmm2
  mulsd  %xmm14,%xmm1
  addsd  -0x60(%rsp),%xmm1
  mulsd  %xmm0,%xmm4
  movsd  %xmm15,-0x60(%rsp)
  movsd  0x38(%rcx),%xmm15
  addsd  -0x50(%rsp),%xmm4
  movsd  %xmm10,-0x50(%rsp)
  movsd  0x30(%rdi),%xmm10
  movsd  %xmm2,0x10(%rsp)
  movsd  -0x58(%rsp),%xmm2
  movsd  %xmm1,0x18(%rsp)
  movsd  0x28(%rcx),%xmm1
  addsd  %xmm5,%xmm2
  movapd %xmm13,%xmm5
  mulsd  %xmm0,%xmm5
  movsd  %xmm1,-0x68(%rsp)
  mulsd  %xmm14,%xmm0
  addsd  -0x48(%rsp),%xmm5
  addsd  -0x40(%rsp),%xmm0
  movsd  0x38(%rdi),%xmm1
  movsd  %xmm11,-0x58(%rsp)
  mulsd  %xmm10,%xmm11
  addsd  %xmm2,%xmm11
  movsd  %xmm11,-0x48(%rsp)
  movsd  -0x68(%rsp),%xmm11
  movapd %xmm11,%xmm2
  mulsd  %xmm10,%xmm2
  addsd  %xmm4,%xmm2
  movsd  -0x60(%rsp),%xmm4
  movsd  %xmm2,-0x40(%rsp)
  movapd %xmm4,%xmm2
  mulsd  %xmm10,%xmm2
  mulsd  %xmm15,%xmm10
  addsd  %xmm5,%xmm2
  movapd %xmm10,%xmm5
  movsd  0x50(%rdi),%xmm10
  addsd  %xmm0,%xmm5
  movsd  -0x58(%rsp),%xmm0
  movsd  %xmm2,-0x38(%rsp)
  movapd %xmm4,%xmm2
  movsd  0x48(%rcx),%xmm4
  mulsd  %xmm1,%xmm0
  movsd  %xmm5,-0x30(%rsp)
  movsd  0x40(%rcx),%xmm5
  mulsd  %xmm1,%xmm2
  addsd  %xmm0,%xmm7
  movapd %xmm11,%xmm0
  movapd %xmm5,%xmm11
  mulsd  %xmm1,%xmm0
  addsd  %xmm2,%xmm9
  movsd  0x58(%rcx),%xmm2
  mulsd  %xmm15,%xmm1
  mulsd  %xmm10,%xmm5
  addsd  %xmm0,%xmm8
  movsd  0x58(%rdi),%xmm0
  addsd  %xmm3,%xmm1
  movsd  0x50(%rcx),%xmm3
  mulsd  %xmm0,%xmm11
  addsd  %xmm7,%xmm11
  movapd %xmm4,%xmm7
  mulsd  %xmm0,%xmm7
  mulsd  %xmm10,%xmm4
  addsd  %xmm7,%xmm8
  movapd %xmm3,%xmm7
  mulsd  %xmm0,%xmm7
  mulsd  %xmm2,%xmm0
  mulsd  %xmm10,%xmm3
  mulsd  %xmm10,%xmm2
  addsd  %xmm9,%xmm7
  movsd  0x68(%rcx),%xmm9
  addsd  %xmm1,%xmm0
  movsd  0x60(%rcx),%xmm1
  movsd  %xmm7,-0x28(%rsp)
  movsd  0x78(%rdi),%xmm7
  mulsd  %xmm7,%xmm9
  mulsd  %xmm7,%xmm1
  addsd  %xmm8,%xmm9
  movsd  0x70(%rcx),%xmm8
  addsd  %xmm11,%xmm1
  mulsd  %xmm7,%xmm8
  mulsd  0x78(%rcx),%xmm7
  addsd  -0x28(%rsp),%xmm8
  addsd  %xmm0,%xmm7
  movapd %xmm12,%xmm0
  movsd  -0x8(%rsp),%xmm12
  mulsd  %xmm12,%xmm0
  addsd  -0x18(%rsp),%xmm0
  mulsd  %xmm12,%xmm13
  movsd  %xmm0,(%r8)
  movapd %xmm6,%xmm0
  mulsd  %xmm12,%xmm0
  addsd  -0x78(%rsp),%xmm0
  mulsd  %xmm14,%xmm12
  movsd  %xmm0,0x8(%r8)
  movsd  -0x10(%rsp),%xmm0
  addsd  %xmm13,%xmm0
  movsd  -0x58(%rsp),%xmm13
  movsd  %xmm0,0x10(%r8)
  movsd  -0x70(%rsp),%xmm0
  addsd  %xmm12,%xmm0
  movsd  %xmm0,0x18(%r8)
  movsd  -0x50(%rsp),%xmm6
  movsd  -0x68(%rsp),%xmm0
  addsd  -0x48(%rsp),%xmm5
  addsd  -0x40(%rsp),%xmm4
  movsd  %xmm1,0x60(%r8)
  mulsd  %xmm6,%xmm0
  addsd  -0x38(%rsp),%xmm3
  addsd  -0x30(%rsp),%xmm2
  movsd  %xmm9,0x68(%r8)
  addsd  0x8(%rsp),%xmm0
  mulsd  %xmm6,%xmm13
  movsd  %xmm8,0x70(%r8)
  mulsd  %xmm6,%xmm15
  addsd  (%rsp),%xmm13
  movsd  %xmm5,0x40(%r8)
  addsd  0x18(%rsp),%xmm15
  movsd  %xmm4,0x48(%r8)
  movsd  %xmm0,0x28(%r8)
  movsd  -0x60(%rsp),%xmm0
  movsd  %xmm13,0x20(%r8)
  mulsd  %xmm6,%xmm0
  movsd  %xmm15,0x38(%r8)
  addsd  0x10(%rsp),%xmm0
  movsd  %xmm3,0x50(%r8)
  movsd  %xmm2,0x58(%r8)
  movsd  %xmm7,0x78(%r8)
  movsd  %xmm0,0x30(%r8)
  add    $0x20,%rsp
  ret
  nopl   0x0(%rax,%rax,1)
L4:
  mov    %rax,%rcx
  jmp    L15
```

assistant: ```c
void kernel_dttmm_uu_nt_4x4_lib4(int kmax, double *A, double *B, double *C) {
  const int bs = 4;
  int k = 0;
  double a_0, a_1, a_2, a_3, b_0, b_1, b_2, b_3, c_00 = 0, c_01 = 0, c_02 = 0, c_03 = 0, c_10 = 0, c_11 = 0, c_12 = 0, c_13 = 0, c_20 = 0, c_21 = 0, c_22 = 0, c_23 = 0, c_30 = 0, c_31 = 0, c_32 = 0, c_33 = 0;
  a_0 = A[0 + bs * 0];
  b_0 = B[0 + bs * 0];
  b_1 = B[1 + bs * 0];
  b_2 = B[2 + bs * 0];
  b_3 = B[3 + bs * 0];
  c_00 += a_0 * b_0;
  c_01 += a_0 * b_1;
  c_02 += a_0 * b_2;
  c_03 += a_0 * b_3;
  a_0 = A[0 + bs * 1];
  a_1 = A[1 + bs * 1];
  b_0 = B[0 + bs * 1];
  b_1 = B[1 + bs * 1];
  b_2 = B[2 + bs * 1];
  b_3 = B[3 + bs * 1];
  c_00 += a_0 * b_0;
  c_10 += a_1 * b_0;
  c_01 += a_0 * b_1;
  c_11 += a_1 * b_1;
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  a_0 = A[0 + bs * 2];
  a_1 = A[1 + bs * 2];
  a_2 = A[2 + bs * 2];
  b_0 = B[0 + bs * 2];
  b_1 = B[1 + bs * 2];
  b_2 = B[2 + bs * 2];
  b_3 = B[3 + bs * 2];
  c_00 += a_0 * b_0;
  c_10 += a_1 * b_0;
  c_20 += a_2 * b_0;
  c_01 += a_0 * b_1;
  c_11 += a_1 * b_1;
  c_21 += a_2 * b_1;
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_22 += a_2 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  a_0 = A[0 + bs * 3];
  a_1 = A[1 + bs * 3];
  a_2 = A[2 + bs * 3];
  a_3 = A[3 + bs * 3];
  b_0 = B[0 + bs * 3];
  b_1 = B[1 + bs * 3];
  b_2 = B[2 + bs * 3];
  b_3 = B[3 + bs * 3];
  c_00 += a_0 * b_0;
  c_10 += a_1 * b_0;
  c_20 += a_2 * b_0;
  c_30 += a_3 * b_0;
  c_01 += a_0 * b_1;
  c_11 += a_1 * b_1;
  c_21 += a_2 * b_1;
  c_31 += a_3 * b_1;
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_22 += a_2 * b_2;
  c_32 += a_3 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  c_33 += a_3 * b_3;
  A += 4 * bs;
  B += 4 * bs;
  k = 4;
  for (; k < kmax - 4; k += 4) {
    a_0 = A[0 + bs * 0];
    a_1 = A[1 + bs * 0];
    a_2 = A[2 + bs * 0];
    a_3 = A[3 + bs * 0];
    b_0 = B[0 + bs * 0];
    b_1 = B[1 + bs * 0];
    b_2 = B[2 + bs * 0];
    b_3 = B[3 + bs * 0];
    c_00 += a_0 * b_0;
    c_10 += a_1 * b_0;
    c_20 += a_2 * b_0;
    c_30 += a_3 * b_0;
    c_01 += a_0 * b_1;
    c_11 += a_1 * b_1;
    c_21 += a_2 * b_1;
    c_31 += a_3 * b_1;
    c_02 += a_0 * b_2;
    c_12 += a_1 * b_2;
    c_22 += a_2 * b_2;
    c_32 += a_3 * b_2;
    c_03 += a_0 * b_3;
    c_13 += a_1 * b_3;
    c_23 += a_2 * b_3;
    c_33 += a_3 * b_3;
    a_0 = A[0 + bs * 1];
    a_1 = A[1 + bs * 1];
    a_2 = A[2 + bs * 1];
    a_3 = A[3 + bs * 1];
    b_0 = B[0 + bs * 1];
    b_1 = B[1 + bs * 1];
    b_2 = B[2 + bs * 1];
    b_3 = B[3 + bs * 1];
    c_00 += a_0 * b_0;
    c_10 += a_1 * b_0;
    c_20 += a_2 * b_0;
    c_30 += a_3 * b_0;
    c_01 += a_0 * b_1;
    c_11 += a_1 * b_1;
    c_21 += a_2 * b_1;
    c_31 += a_3 * b_1;
    c_02 += a_0 * b_2;
    c_12 += a_1 * b_2;
    c_22 += a_2 * b_2;
    c_32 += a_3 * b_2;
    c_03 += a_0 * b_3;
    c_13 += a_1 * b_3;
    c_23 += a_2 * b_3;
    c_33 += a_3 * b_3;
    a_0 = A[0 + bs * 2];
    a_1 = A[1 + bs * 2];
    a_2 = A[2 + bs * 2];
    a_3 = A[3 + bs * 2];
    b_0 = B[0 + bs * 2];
    b_1 = B[1 + bs * 2];
    b_2 = B[2 + bs * 2];
    b_3 = B[3 + bs * 2];
    c_00 += a_0 * b_0;
    c_10 += a_1 * b_0;
    c_20 += a_2 * b_0;
    c_30 += a_3 * b_0;
    c_01 += a_0 * b_1;
    c_11 += a_1 * b_1;
    c_21 += a_2 * b_1;
    c_31 += a_3 * b_1;
    c_02 += a_0 * b_2;
    c_12 += a_1 * b_2;
    c_22 += a_2 * b_2;
    c_32 += a_3 * b_2;
    c_03 += a_0 * b_3;
    c_13 += a_1 * b_3;
    c_23 += a_2 * b_3;
    c_33 += a_3 * b_3;
    a_0 = A[0 + bs * 3];
    a_1 = A[1 + bs * 3];
    a_2 = A[2 + bs * 3];
    a_3 = A[3 + bs * 3];
    b_0 = B[0 + bs * 3];
    b_1 = B[1 + bs * 3];
    b_2 = B[2 + bs * 3];
    b_3 = B[3 + bs * 3];
    c_00 += a_0 * b_0;
    c_10 += a_1 * b_0;
    c_20 += a_2 * b_0;
    c_30 += a_3 * b_0;
    c_01 += a_0 * b_1;
    c_11 += a_1 * b_1;
    c_21 += a_2 * b_1;
    c_31 += a_3 * b_1;
    c_02 += a_0 * b_2;
    c_12 += a_1 * b_2;
    c_22 += a_2 * b_2;
    c_32 += a_3 * b_2;
    c_03 += a_0 * b_3;
    c_13 += a_1 * b_3;
    c_23 += a_2 * b_3;
    c_33 += a_3 * b_3;
    A += 4 * bs;
    B += 4 * bs;
  }
  a_0 = A[0 + bs * 0];
  a_1 = A[1 + bs * 0];
  a_2 = A[2 + bs * 0];
  a_3 = A[3 + bs * 0];
  b_0 = B[0 + bs * 0];
  b_1 = B[1 + bs * 0];
  b_2 = B[2 + bs * 0];
  b_3 = B[3 + bs * 0];
  c_00 += a_0 * b_0;
  c_10 += a_1 * b_0;
  c_20 += a_2 * b_0;
  c_30 += a_3 * b_0;
  c_01 += a_0 * b_1;
  c_11 += a_1 * b_1;
  c_21 += a_2 * b_1;
  c_31 += a_3 * b_1;
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_22 += a_2 * b_2;
  c_32 += a_3 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  c_33 += a_3 * b_3;
  a_0 = A[0 + bs * 1];
  a_1 = A[1 + bs * 1];
  a_2 = A[2 + bs * 1];
  a_3 = A[3 + bs * 1];
  b_1 = B[1 + bs * 1];
  b_2 = B[2 + bs * 1];
  b_3 = B[3 + bs * 1];
  c_01 += a_0 * b_1;
  c_11 += a_1 * b_1;
  c_21 += a_2 * b_1;
  c_31 += a_3 * b_1;
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_22 += a_2 * b_2;
  c_32 += a_3 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  c_33 += a_3 * b_3;
  a_0 = A[0 + bs * 2];
  a_1 = A[1 + bs * 2];
  a_2 = A[2 + bs * 2];
  a_3 = A[3 + bs * 2];
  b_2 = B[2 + bs * 2];
  b_3 = B[3 + bs * 2];
  c_02 += a_0 * b_2;
  c_12 += a_1 * b_2;
  c_22 += a_2 * b_2;
  c_32 += a_3 * b_2;
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  c_33 += a_3 * b_3;
  a_0 = A[0 + bs * 3];
  a_1 = A[1 + bs * 3];
  a_2 = A[2 + bs * 3];
  a_3 = A[3 + bs * 3];
  b_3 = B[3 + bs * 3];
  c_03 += a_0 * b_3;
  c_13 += a_1 * b_3;
  c_23 += a_2 * b_3;
  c_33 += a_3 * b_3;
  C[0 + bs * 0] = c_00;
  C[1 + bs * 0] = c_10;
  C[2 + bs * 0] = c_20;
  C[3 + bs * 0] = c_30;
  C[0 + bs * 1] = c_01;
  C[1 + bs * 1] = c_11;
  C[2 + bs * 1] = c_21;
  C[3 + bs * 1] = c_31;
  C[0 + bs * 2] = c_02;
  C[1 + bs * 2] = c_12;
  C[2 + bs * 2] = c_22;
  C[3 + bs * 2] = c_32;
  C[0 + bs * 3] = c_03;
  C[1 + bs * 3] = c_13;
  C[2 + bs * 3] = c_23;
  C[3 + bs * 3] = c_33;
}
```