user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<kernel_strsv_t_4_lib4>:
  endbr64
  test   %edi,%edi
  jle    L55
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  mov    %rsi,%r9
  mov    %rcx,%r10
  shl    $0x2,%edx
  movslq %edx,%r8
  lea    0x0(,%r8,4),%r11
  lea    (%rsi,%r11,1),%rax
  lea    0x10(%rcx),%rdi
  cmp    $0x8,%ebx
  jle    L5
  shl    $0x3,%r8
  lea    (%rax,%r11,1),%rcx
  lea    -0x9(%rbx),%r13d
  shr    $0x3,%r13d
  mov    %r13d,%r12d
  mov    %r12,%rdx
  shl    $0x5,%rdx
  lea    0x30(%r10,%rdx,1),%rbp
  mov    %rdi,%rsi
  mov    %rax,%rdx
  pxor   %xmm4,%xmm4
  movaps %xmm4,%xmm7
  movaps %xmm4,%xmm5
  movaps %xmm4,%xmm6
L3:
  movss  (%rsi),%xmm3
  movss  0x4(%rsi),%xmm2
  movss  0x8(%rsi),%xmm1
  movss  0xc(%rsi),%xmm0
  movaps %xmm3,%xmm8
  mulss  (%rdx),%xmm8
  addss  %xmm6,%xmm8
  movaps %xmm3,%xmm6
  mulss  0x10(%rdx),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm3,%xmm5
  mulss  0x20(%rdx),%xmm5
  addss  %xmm7,%xmm5
  mulss  0x30(%rdx),%xmm3
  addss  %xmm4,%xmm3
  movaps %xmm2,%xmm4
  mulss  0x4(%rdx),%xmm4
  addss  %xmm8,%xmm4
  movaps %xmm2,%xmm7
  mulss  0x14(%rdx),%xmm7
  addss  %xmm6,%xmm7
  movaps %xmm2,%xmm6
  mulss  0x24(%rdx),%xmm6
  addss  %xmm5,%xmm6
  mulss  0x34(%rdx),%xmm2
  addss  %xmm3,%xmm2
  movaps %xmm1,%xmm5
  mulss  0x8(%rdx),%xmm5
  addss  %xmm4,%xmm5
  movaps %xmm1,%xmm4
  mulss  0x18(%rdx),%xmm4
  addss  %xmm7,%xmm4
  movaps %xmm1,%xmm3
  mulss  0x28(%rdx),%xmm3
  addss  %xmm6,%xmm3
  mulss  0x38(%rdx),%xmm1
  addss  %xmm2,%xmm1
  movaps %xmm0,%xmm6
  mulss  0xc(%rdx),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm0,%xmm5
  mulss  0x1c(%rdx),%xmm5
  addss  %xmm4,%xmm5
  movaps %xmm0,%xmm8
  mulss  0x2c(%rdx),%xmm8
  addss  %xmm3,%xmm8
  mulss  0x3c(%rdx),%xmm0
  addss  %xmm1,%xmm0
  movaps %xmm0,%xmm3
  movss  0x10(%rsi),%xmm2
  movss  0x14(%rsi),%xmm1
  movss  0x18(%rsi),%xmm0
  movss  0x1c(%rsi),%xmm4
  movaps %xmm2,%xmm7
  mulss  (%rcx),%xmm7
  addss  %xmm6,%xmm7
  movaps %xmm2,%xmm6
  mulss  0x10(%rcx),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm2,%xmm5
  mulss  0x20(%rcx),%xmm5
  addss  %xmm8,%xmm5
  mulss  0x30(%rcx),%xmm2
  addss  %xmm3,%xmm2
  movaps %xmm1,%xmm3
  mulss  0x4(%rcx),%xmm3
  addss  %xmm7,%xmm3
  movaps %xmm1,%xmm7
  mulss  0x14(%rcx),%xmm7
  addss  %xmm6,%xmm7
  movaps %xmm1,%xmm6
  mulss  0x24(%rcx),%xmm6
  addss  %xmm5,%xmm6
  mulss  0x34(%rcx),%xmm1
  addss  %xmm2,%xmm1
  movaps %xmm0,%xmm5
  mulss  0x8(%rcx),%xmm5
  addss  %xmm3,%xmm5
  movaps %xmm0,%xmm3
  mulss  0x18(%rcx),%xmm3
  addss  %xmm7,%xmm3
  movaps %xmm0,%xmm2
  mulss  0x28(%rcx),%xmm2
  addss  %xmm6,%xmm2
  mulss  0x38(%rcx),%xmm0
  addss  %xmm1,%xmm0
  movaps %xmm4,%xmm6
  mulss  0xc(%rcx),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm4,%xmm5
  mulss  0x1c(%rcx),%xmm5
  addss  %xmm3,%xmm5
  movaps %xmm4,%xmm7
  mulss  0x2c(%rcx),%xmm7
  addss  %xmm2,%xmm7
  mulss  0x3c(%rcx),%xmm4
  addss  %xmm0,%xmm4
  add    %r8,%rdx
  add    $0x20,%rsi
  add    %r8,%rcx
  cmp    %rsi,%rbp
  jne    L3
  lea    0x1(%r12),%rdx
  imul   %rdx,%r8
  add    %r8,%rax
  shl    $0x5,%rdx
  add    %rdx,%rdi
  lea    0xc(,%r13,8),%ecx
L21:
  cmp    %ecx,%ebx
  jle    L54
  lea    -0x1(%rbx),%edx
  sub    %ecx,%edx
  shr    $0x2,%edx
  add    $0x1,%edx
  mov    %edx,%edx
  shl    $0x4,%rdx
  add    %rdi,%rdx
L27:
  movss  (%rdi),%xmm2
  movss  0x4(%rdi),%xmm1
  movss  0x8(%rdi),%xmm0
  movss  0xc(%rdi),%xmm3
  movaps %xmm2,%xmm8
  mulss  (%rax),%xmm8
  addss  %xmm6,%xmm8
  movaps %xmm2,%xmm6
  mulss  0x10(%rax),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm2,%xmm5
  mulss  0x20(%rax),%xmm5
  addss  %xmm7,%xmm5
  mulss  0x30(%rax),%xmm2
  addss  %xmm4,%xmm2
  movaps %xmm1,%xmm4
  mulss  0x4(%rax),%xmm4
  addss  %xmm8,%xmm4
  movaps %xmm1,%xmm7
  mulss  0x14(%rax),%xmm7
  addss  %xmm6,%xmm7
  movaps %xmm1,%xmm6
  mulss  0x24(%rax),%xmm6
  addss  %xmm5,%xmm6
  mulss  0x34(%rax),%xmm1
  addss  %xmm2,%xmm1
  movaps %xmm0,%xmm5
  mulss  0x8(%rax),%xmm5
  addss  %xmm4,%xmm5
  movaps %xmm0,%xmm4
  mulss  0x18(%rax),%xmm4
  addss  %xmm7,%xmm4
  movaps %xmm0,%xmm2
  mulss  0x28(%rax),%xmm2
  addss  %xmm6,%xmm2
  mulss  0x38(%rax),%xmm0
  addss  %xmm1,%xmm0
  movaps %xmm3,%xmm6
  mulss  0xc(%rax),%xmm6
  addss  %xmm5,%xmm6
  movaps %xmm3,%xmm5
  mulss  0x1c(%rax),%xmm5
  addss  %xmm4,%xmm5
  movaps %xmm3,%xmm7
  mulss  0x2c(%rax),%xmm7
  addss  %xmm2,%xmm7
  movaps %xmm3,%xmm1
  mulss  0x3c(%rax),%xmm1
  addss  %xmm0,%xmm1
  movaps %xmm1,%xmm4
  add    %r11,%rax
  add    $0x10,%rdi
  cmp    %rdx,%rdi
  jne    L27
L54:
  movss  0xc(%r10),%xmm1
  subss  %xmm4,%xmm1
  mulss  0x3c(%r9),%xmm1
  movss  %xmm1,0xc(%r10)
  movaps %xmm1,%xmm2
  mulss  0x2c(%r9),%xmm2
  movss  0x8(%r10),%xmm0
  subss  %xmm2,%xmm0
  subss  %xmm7,%xmm0
  mulss  0x28(%r9),%xmm0
  movss  %xmm0,0x8(%r10)
  movaps %xmm0,%xmm2
  mulss  0x8(%r9),%xmm2
  movaps %xmm1,%xmm3
  mulss  0xc(%r9),%xmm3
  addss  %xmm3,%xmm2
  addss  %xmm6,%xmm2
  mulss  0x18(%r9),%xmm0
  mulss  0x1c(%r9),%xmm1
  addss  %xmm1,%xmm0
  addss  %xmm5,%xmm0
  movss  0x4(%r10),%xmm1
  subss  %xmm0,%xmm1
  movaps %xmm1,%xmm0
  mulss  0x14(%r9),%xmm0
  movss  %xmm0,0x4(%r10)
  mulss  0x4(%r9),%xmm0
  movss  (%r10),%xmm1
  subss  %xmm0,%xmm1
  subss  %xmm2,%xmm1
  mulss  (%r9),%xmm1
  movss  %xmm1,(%r10)
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L5:
  pxor   %xmm4,%xmm4
  movaps %xmm4,%xmm7
  movaps %xmm4,%xmm5
  movaps %xmm4,%xmm6
  mov    $0x4,%ecx
  jmp    L21
L55:
  ret
```

assistant: ```c
void kernel_strsv_t_4_lib4(int kmax, float *A, int sda, float *x) {
  if (kmax <= 0)
    return;
  const int lda = 4;
  const int bs = 4;
  int k;
  float *tA, *tx;
  tA = A;
  tx = x;
  float x_0, x_1, x_2, x_3, y_0 = 0, y_1 = 0, y_2 = 0, y_3 = 0;
  k = 4;
  A += 4 + (sda - 1) * lda;
  x += 4;
  for (; k < kmax - 4; k += 8) {
    x_0 = x[0];
    x_1 = x[1];
    x_2 = x[2];
    x_3 = x[3];
    y_0 += A[0 + lda * 0] * x_0;
    y_1 += A[0 + lda * 1] * x_0;
    y_2 += A[0 + lda * 2] * x_0;
    y_3 += A[0 + lda * 3] * x_0;
    y_0 += A[1 + lda * 0] * x_1;
    y_1 += A[1 + lda * 1] * x_1;
    y_2 += A[1 + lda * 2] * x_1;
    y_3 += A[1 + lda * 3] * x_1;
    y_0 += A[2 + lda * 0] * x_2;
    y_1 += A[2 + lda * 1] * x_2;
    y_2 += A[2 + lda * 2] * x_2;
    y_3 += A[2 + lda * 3] * x_2;
    y_0 += A[3 + lda * 0] * x_3;
    y_1 += A[3 + lda * 1] * x_3;
    y_2 += A[3 + lda * 2] * x_3;
    y_3 += A[3 + lda * 3] * x_3;
    A += sda * bs;
    x += 4;
    x_0 = x[0];
    x_1 = x[1];
    x_2 = x[2];
    x_3 = x[3];
    y_0 += A[0 + lda * 0] * x_0;
    y_1 += A[0 + lda * 1] * x_0;
    y_2 += A[0 + lda * 2] * x_0;
    y_3 += A[0 + lda * 3] * x_0;
    y_0 += A[1 + lda * 0] * x_1;
    y_1 += A[1 + lda * 1] * x_1;
    y_2 += A[1 + lda * 2] * x_1;
    y_3 += A[1 + lda * 3] * x_1;
    y_0 += A[2 + lda * 0] * x_2;
    y_1 += A[2 + lda * 1] * x_2;
    y_2 += A[2 + lda * 2] * x_2;
    y_3 += A[2 + lda * 3] * x_2;
    y_0 += A[3 + lda * 0] * x_3;
    y_1 += A[3 + lda * 1] * x_3;
    y_2 += A[3 + lda * 2] * x_3;
    y_3 += A[3 + lda * 3] * x_3;
    A += sda * bs;
    x += 4;
  }
  for (; k < kmax; k += 4) {
    x_0 = x[0];
    x_1 = x[1];
    x_2 = x[2];
    x_3 = x[3];
    y_0 += A[0 + lda * 0] * x_0;
    y_1 += A[0 + lda * 1] * x_0;
    y_2 += A[0 + lda * 2] * x_0;
    y_3 += A[0 + lda * 3] * x_0;
    y_0 += A[1 + lda * 0] * x_1;
    y_1 += A[1 + lda * 1] * x_1;
    y_2 += A[1 + lda * 2] * x_1;
    y_3 += A[1 + lda * 3] * x_1;
    y_0 += A[2 + lda * 0] * x_2;
    y_1 += A[2 + lda * 1] * x_2;
    y_2 += A[2 + lda * 2] * x_2;
    y_3 += A[2 + lda * 3] * x_2;
    y_0 += A[3 + lda * 0] * x_3;
    y_1 += A[3 + lda * 1] * x_3;
    y_2 += A[3 + lda * 2] * x_3;
    y_3 += A[3 + lda * 3] * x_3;
    A += sda * bs;
    x += 4;
  }
  A = tA;
  x = tx;
  y_3 = x[3] - y_3;
  y_3 *= A[3 + lda * 3];
  x[3] = y_3;
  y_2 = x[2] - A[3 + lda * 2] * y_3 - y_2;
  y_2 *= A[2 + lda * 2];
  x[2] = y_2;
  y_0 += A[2 + lda * 0] * y_2 + A[3 + lda * 0] * y_3;
  y_1 += A[2 + lda * 1] * y_2 + A[3 + lda * 1] * y_3;
  y_1 = x[1] - y_1;
  y_1 *= A[1 + lda * 1];
  x[1] = y_1;
  y_0 = x[0] - A[1 + lda * 0] * y_1 - y_0;
  y_0 *= A[0 + lda * 0];
  x[0] = y_0;
}
```