user: 这段汇编代码用C语言表示是什么样的:

```asm
<rmsub_stride>:
  endbr64
  push   %r15
  lea    (%rcx,%r8,1),%eax
  push   %r14
  add    %r9d,%eax
  mov    %ecx,%r14d
  push   %r13
  mov    %rdi,%r13
  push   %r12
  mov    %r8d,%r12d
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x58,%rsp
  cmp    $0xc0,%eax
  jle    L91
  mov    %rsi,(%rsp)
  mov    %rdi,%rbp
  mov    %r9d,%ebx
  mov    %rdx,%r13
L72:
  mov    %r14d,%eax
  sub    $0x8,%rsp
  mov    %r13,%rdx
  mov    %rbp,%rdi
  shr    $0x1f,%eax
  add    %r14d,%eax
  sar    %eax
  mov    %eax,%r14d
  mov    %r12d,%eax
  shr    $0x1f,%eax
  mov    %r14d,%ecx
  add    %r12d,%eax
  sar    %eax
  mov    %eax,%r12d
  mov    %ebx,%eax
  shr    $0x1f,%eax
  mov    %r12d,%r8d
  add    %ebx,%eax
  sar    %eax
  mov    %eax,%ebx
  mov    0xa8(%rsp),%eax
  mov    %ebx,%r9d
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    0x20(%rsp),%r15
  mov    %r15,%rsi
  call   <rmsub_stride>
  movslq %r12d,%rax
  mov    %ebx,%r9d
  mov    %r12d,%r8d
  mov    %rax,0x30(%rsp)
  lea    0x0(,%rax,4),%rdi
  add    $0x18,%rsp
  mov    %r14d,%ecx
  mov    0xa8(%rsp),%eax
  lea    0x0(%r13,%rdi,1),%rdx
  lea    (%r15,%rdi,1),%rsi
  add    %rbp,%rdi
  mov    %r15,0x8(%rsp)
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  call   <rmsub_stride>
  mov    %ebx,%r9d
  mov    %r12d,%r8d
  mov    %r14d,%ecx
  mov    0xc0(%rsp),%eax
  mov    0xb8(%rsp),%r11d
  add    $0x18,%rsp
  imul   %r14d,%eax
  imul   %r14d,%r11d
  movslq %eax,%r15
  mov    0xa8(%rsp),%eax
  movslq %r11d,%r11
  lea    0x0(,%r15,4),%rsi
  mov    %r11,0x10(%rsp)
  lea    0x0(%r13,%rsi,1),%rdx
  add    0x8(%rsp),%rsi
  lea    0x0(%rbp,%r11,4),%rdi
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  mov    0xa8(%rsp),%eax
  push   %rax
  call   <rmsub_stride>
  mov    0x30(%rsp),%rax
  mov    0x28(%rsp),%r11
  add    %rax,%r15
  add    %r11,%rax
  lea    0x0(%rbp,%rax,4),%rbp
  lea    (%r14,%r12,1),%eax
  shl    $0x2,%r15
  add    %r15,0x20(%rsp)
  add    %ebx,%eax
  add    %r15,%r13
  add    $0x20,%rsp
  cmp    $0xc0,%eax
  jg     L72
  mov    %r13,%rax
  mov    (%rsp),%rbx
  mov    %rbp,%r13
  mov    %rax,%rbp
L91:
  test   %r14d,%r14d
  jle    L114
  test   %r12d,%r12d
  jle    L114
  movslq 0x90(%rsp),%rax
  xor    %ecx,%ecx
  mov    %r13,%rdx
  xor    %r10d,%r10d
  movl   $0x0,(%rsp)
  xor    %r9d,%r9d
  xor    %r8d,%r8d
  xor    %edi,%edi
  mov    %rax,0x20(%rsp)
  shl    $0x2,%rax
  xor    %esi,%esi
  mov    %rax,0x28(%rsp)
  movslq 0x98(%rsp),%rax
  mov    %r14d,0x38(%rsp)
  mov    %rax,0x10(%rsp)
  movslq 0xa0(%rsp),%rax
  mov    %r12d,0x8(%rsp)
  mov    %rax,0x18(%rsp)
  lea    -0x1(%r12),%eax
  mov    %eax,0x3c(%rsp)
  mov    %r12d,%eax
  shr    $0x2,%eax
  sub    $0x1,%eax
  add    $0x1,%rax
  shl    $0x4,%rax
  mov    %rax,%r11
  mov    %r12d,%eax
  and    $0xfffffffc,%eax
  mov    %eax,0x40(%rsp)
  mov    %r12d,%eax
  mov    %rax,0x48(%rsp)
  lea    0x4(%rbx),%rax
  mov    %rax,0x30(%rsp)
  mov    %r12d,%eax
  mov    %rcx,%r12
  and    $0x3,%eax
  mov    %eax,0x44(%rsp)
  nopw   0x0(%rax,%rax,1)
L59:
  lea    0x0(%rbp,%r10,4),%rcx
  lea    0x4(%rdx),%r15
  mov    %rcx,%r14
  lea    0x0(,%r9,4),%rax
  sub    %r15,%r14
  cmp    $0x8,%r14
  seta   %r15b
  cmpl   $0x1,0x8(%rsp)
  setne  %r14b
  test   %r14b,%r15b
  je     L84
  mov    0x30(%rsp),%r15
  mov    %rcx,%r14
  add    %rax,%r15
  sub    %r15,%r14
  cmp    $0x8,%r14
  jbe    L84
  cmpl   $0x2,0x3c(%rsp)
  jbe    L31
  add    %rbx,%rax
  xor    %r14d,%r14d
  nopw   0x0(%rax,%rax,1)
L5:
  movups (%rdx,%r14,1),%xmm0
  movups (%rax,%r14,1),%xmm2
  subps  %xmm2,%xmm0
  movups %xmm0,(%rcx,%r14,1)
  add    $0x10,%r14
  cmp    %r14,%r11
  jne    L5
  mov    0x40(%rsp),%eax
  mov    0x8(%rsp),%ecx
  cmp    %ecx,%eax
  je     L95
  mov    0x44(%rsp),%ecx
  mov    %ecx,%r14d
  cmp    $0x1,%ecx
  je     L139
  mov    %eax,%ecx
L109:
  lea    (%r12,%rcx,1),%r15
  movq   0x0(%r13,%r15,4),%xmm0
  lea    (%r9,%rcx,1),%r15
  add    %r10,%rcx
  movq   (%rbx,%r15,4),%xmm1
  subps  %xmm1,%xmm0
  movlps %xmm0,0x0(%rbp,%rcx,4)
  mov    %r14d,%ecx
  and    $0xfffffffe,%ecx
  add    %ecx,%eax
  cmp    %ecx,%r14d
  je     L95
L139:
  lea    (%r8,%rax,1),%ecx
  lea    (%rsi,%rax,1),%r14d
  add    %edi,%eax
  movslq %r14d,%r14
  cltq
  movslq %ecx,%rcx
  movss  0x0(%r13,%r14,4),%xmm0
  subss  (%rbx,%rax,4),%xmm0
  movss  %xmm0,0x0(%rbp,%rcx,4)
L95:
  addl   $0x1,(%rsp)
  add    0x28(%rsp),%rdx
  mov    (%rsp),%eax
  add    0x90(%rsp),%esi
  add    0x98(%rsp),%edi
  add    0xa0(%rsp),%r8d
  add    0x20(%rsp),%r12
  add    0x10(%rsp),%r9
  add    0x18(%rsp),%r10
  cmp    0x38(%rsp),%eax
  jne    L59
L114:
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L84:
  mov    0x48(%rsp),%r15
  add    %rbx,%rax
  xor    %r14d,%r14d
  nopl   0x0(%rax,%rax,1)
L88:
  movss  (%rdx,%r14,4),%xmm0
  subss  (%rax,%r14,4),%xmm0
  movss  %xmm0,(%rcx,%r14,4)
  add    $0x1,%r14
  cmp    %r15,%r14
  jne    L88
  jmp    L95
L31:
  mov    0x8(%rsp),%r14d
  xor    %eax,%eax
  xor    %ecx,%ecx
  jmp    L109
```

assistant: ```c
void rmsub_stride(float *A, float *B, float *C, int rows, int cols, int p, int sA, int sB, int sC) {
  int i, j, u, v, w;
  if (rows + cols + p <= 192) {
    for (i = 0; i < rows; ++i) {
      u = i * sC;
      v = i * sA;
      w = i * sB;
      for (j = 0; j < cols; j++) {
        C[j + u] = A[j + v] - B[j + w];
      }
    }
  } else {
    rows /= 2;
    cols /= 2;
    p /= 2;
    rmsub_stride(A, B, C, rows, cols, p, sA, sB, sC);
    rmsub_stride(A + cols, B + cols, C + cols, rows, cols, p, sA, sB, sC);
    rmsub_stride(A + rows * sB, B + rows * sC, C + rows * sC, rows, cols, p, sA, sB, sC);
    rmsub_stride(A + rows * sB + cols, B + rows * sC + cols, C + rows * sC + cols, rows, cols, p, sA, sB, sC);
  }
}
```