user: Demonstrate the C code that generates the assembly output below:

```asm
<simple_trsml>:
  endbr64
  push   %r15
  mov    %esi,%r10d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  movslq 0x40(%rsp),%rsi
  mov    %edi,-0x1c(%rsp)
  mov    %ecx,-0x20(%rsp)
  test   %edi,%edi
  jle    L249
  test   %r10d,%r10d
  jle    L249
  mov    %rdx,%r11
  mov    %r8d,%ebp
  mov    %r9,%rbx
  cmp    $0x1,%esi
  jne    L199
  mov    %r10d,%eax
  mov    %r10d,%edx
  lea    0x8(%r11),%rdi
  shr    %eax
  and    $0xfffffffe,%edx
  lea    -0x1(%rax),%ecx
  movslq %r10d,%rax
  lea    (%rbx,%rax,8),%rax
  cmp    %rax,%r11
  setae  %al
  cmp    %rdi,%rbx
  setae  %dil
  or     %dil,%al
  je     L138
  cmp    $0x1,%r10d
  je     L138
  movsd  (%r11),%xmm1
  add    $0x1,%rcx
  mov    %rbx,%rax
  shl    $0x4,%rcx
  unpcklpd %xmm1,%xmm1
  add    %rbx,%rcx
  nopl   0x0(%rax)
L163:
  movupd (%rax),%xmm0
  add    $0x10,%rax
  divpd  %xmm1,%xmm0
  movups %xmm0,-0x10(%rax)
  cmp    %rcx,%rax
  jne    L163
  cmp    %edx,%r10d
  je     L8
  movslq %edx,%rax
  lea    (%rbx,%rax,8),%rax
  movsd  (%rax),%xmm0
  divsd  (%r11),%xmm0
  movsd  %xmm0,(%rax)
L8:
  cmpl   $0x1,-0x1c(%rsp)
  je     L249
  cmpl   $0x1,0x38(%rsp)
  jne    L190
  cmp    $0x1,%ebp
  jne    L190
  mov    -0x20(%rsp),%r14d
  lea    0x0(,%rsi,8),%r9
  mov    $0x1,%r12d
  mov    $0x1,%esi
  lea    0x1(%r14),%r15d
  mov    %r15d,%r13d
L116:
  movslq %r13d,%rax
  mov    %rbx,%rcx
  lea    (%rbx,%r12,8),%rdx
  xor    %r8d,%r8d
  lea    (%r11,%rax,8),%rbp
  movslq %r14d,%rax
  lea    (%r11,%rax,8),%rdi
  nopl   0x0(%rax)
L10:
  movsd  (%rdx),%xmm1
  xor    %eax,%eax
  cs nopw 0x0(%rax,%rax,1)
L63:
  movsd  (%rdi,%rax,8),%xmm0
  mulsd  (%rcx,%rax,8),%xmm0
  add    $0x1,%rax
  subsd  %xmm0,%xmm1
  movsd  %xmm1,(%rdx)
  cmp    %eax,%esi
  jg     L63
  add    $0x1,%r8d
  divsd  0x0(%rbp),%xmm1
  add    %r9,%rcx
  movsd  %xmm1,(%rdx)
  add    %r9,%rdx
  cmp    %r8d,%r10d
  jne    L10
  add    $0x1,%esi
  add    %r15d,%r13d
  add    -0x20(%rsp),%r14d
  add    $0x1,%r12
  cmp    %esi,-0x1c(%rsp)
  jne    L116
L249:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L138:
  lea    -0x1(%r10),%edx
  mov    %rbx,%rax
  lea    0x8(%rbx,%rdx,8),%rdx
  xchg   %ax,%ax
L6:
  movsd  (%rax),%xmm0
  add    $0x8,%rax
  divsd  (%r11),%xmm0
  movsd  %xmm0,-0x8(%rax)
  cmp    %rdx,%rax
  jne    L6
  jmp    L8
L199:
  movslq %esi,%rcx
  movslq %r10d,%r8
  mov    %r10d,%r12d
  xor    %r13d,%r13d
  lea    0x0(,%rcx,8),%rdx
  mov    %r10d,%edi
  mov    %esi,%eax
  mov    %r13,%r9
  shr    %edi
  sub    $0x1,%r8
  and    $0xfffffffe,%r12d
  shl    $0x4,%rcx
  imul   %rdx,%r8
  imul   %r12d,%eax
  test   %esi,%esi
  cmovs  %r8,%r9
  add    %rbx,%r9
  cmp    %r9,%r11
  setb   %r9b
  test   %esi,%esi
  cmovs  %r13,%r8
  add    %rbx,%r8
  cmp    %r8,%r11
  seta   %r8b
  or     %r9b,%r8b
  je     L95
  lea    -0x1(%r10),%r8d
  cmp    $0x2,%r8d
  seta   %r9b
  test   %esi,%esi
  setne  %r8b
  test   %r8b,%r9b
  je     L95
  movsd  (%r11),%xmm1
  mov    %rbx,%r8
  xor    %r9d,%r9d
  unpcklpd %xmm1,%xmm1
  nopl   0x0(%rax)
L143:
  movsd  (%r8),%xmm0
  add    $0x1,%r9d
  movhpd (%r8,%rdx,1),%xmm0
  divpd  %xmm1,%xmm0
  movlpd %xmm0,(%r8)
  movhpd %xmm0,(%r8,%rdx,1)
  add    %rcx,%r8
  cmp    %r9d,%edi
  jne    L143
  cmp    %r12d,%r10d
  je     L8
  cltq
  lea    (%rbx,%rax,8),%rax
  movsd  (%rax),%xmm0
  divsd  (%r11),%xmm0
  movsd  %xmm0,(%rax)
  jmp    L8
L95:
  mov    %rbx,%rax
  xor    %ecx,%ecx
L144:
  add    $0x1,%ecx
  movsd  (%rax),%xmm0
  divsd  (%r11),%xmm0
  movsd  %xmm0,(%rax)
  add    %rdx,%rax
  cmp    %ecx,%r10d
  jne    L144
  jmp    L8
L190:
  mov    -0x20(%rsp),%ecx
  movslq %ebp,%r8
  lea    0x0(,%rsi,8),%rdi
  mov    0x38(%rsp),%esi
  shl    $0x3,%r8
  mov    $0x1,%r9d
  lea    0x0(%rbp,%rcx,1),%eax
  mov    %ecx,-0x10(%rsp)
  movslq 0x38(%rsp),%rbp
  mov    %eax,-0xc(%rsp)
  mov    %esi,-0x14(%rsp)
  shl    $0x3,%rbp
  mov    %eax,-0x18(%rsp)
L209:
  movslq -0x18(%rsp),%rax
  movslq -0x14(%rsp),%r13
  xor    %r12d,%r12d
  lea    (%r11,%rax,8),%r15
  movslq -0x10(%rsp),%rax
  shl    $0x3,%r13
  lea    (%rbx,%r13,1),%rsi
  lea    (%r11,%rax,8),%r14
  nopl   (%rax)
L171:
  mov    %rsi,%rcx
  movsd  (%rsi),%xmm1
  mov    %r14,%rdx
  xor    %eax,%eax
  sub    %r13,%rcx
  nopw   0x0(%rax,%rax,1)
L15:
  movsd  (%rcx),%xmm0
  mulsd  (%rdx),%xmm0
  add    $0x1,%eax
  add    %r8,%rdx
  add    %rbp,%rcx
  subsd  %xmm0,%xmm1
  movsd  %xmm1,(%rsi)
  cmp    %eax,%r9d
  jg     L15
  add    $0x1,%r12d
  divsd  (%r15),%xmm1
  movsd  %xmm1,(%rsi)
  add    %rdi,%rsi
  cmp    %r12d,%r10d
  jne    L171
  mov    -0xc(%rsp),%esi
  add    $0x1,%r9d
  add    %esi,-0x18(%rsp)
  mov    0x38(%rsp),%esi
  add    %esi,-0x14(%rsp)
  mov    -0x20(%rsp),%esi
  add    %esi,-0x10(%rsp)
  cmp    %r9d,-0x1c(%rsp)
  jne    L209
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void simple_trsml(int m, int n, double *a, int a_row_stride, int a_col_stride, double *b, int b_row_stride, int b_col_stride) {
  int i, j, p;
  for (i = 0; i < m; i++) {
    for (j = 0; j < n; j++) {
      for (p = 0; p < i; p++) {
        b[(i)*b_row_stride + (j)*b_col_stride] = b[(i)*b_row_stride + (j)*b_col_stride] - a[(i)*a_row_stride + (p)*a_col_stride] * b[(p)*b_row_stride + (j)*b_col_stride];
      }
      b[(i)*b_row_stride + (j)*b_col_stride] = b[(i)*b_row_stride + (j)*b_col_stride] / a[(i)*a_row_stride + (i)*a_col_stride];
    }
  }
}
```