user: 这段汇编代码用C语言表示是什么样的：

```asm
<qrupdate>:
  endbr64
  push   %r15
  pxor   %xmm2,%xmm2
  mov    %rdx,%r15
  push   %r14
  mov    %esi,%r14d
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  mov    %rcx,%rbp
  lea    -0x1(%rsi),%ecx
  push   %rbx
  movslq %ecx,%rax
  lea    0x0(,%rax,8),%rdi
  sub    $0x28,%rsp
  ucomisd (%rdx,%rax,8),%xmm2
  mov    $0x0,%edx
  mov    %ecx,0x10(%rsp)
  mov    %rdi,0x18(%rsp)
  setnp  %al
  cmovne %edx,%eax
  test   %al,%al
  je     L37
  test   %ecx,%ecx
  jle    L37
  lea    -0x2(%rsi),%eax
  xor    %edi,%edi
  cltq
  nopl   0x0(%rax,%rax,1)
L54:
  ucomisd (%r15,%rax,8),%xmm2
  mov    %eax,0x10(%rsp)
  setnp  %dl
  cmovne %edi,%edx
  test   %eax,%eax
  setg   %sil
  sub    $0x1,%rax
  test   %sil,%dl
  jne    L54
L37:
  movslq 0x10(%rsp),%rax
  mov    %eax,%r12d
  sub    $0x1,%r12d
  js     L181
  movq   D12(%rip),%xmm6
  lea    (%r15,%rax,8),%rbx
  movaps %xmm6,(%rsp)
  jmp    L78
  nopl   0x0(%rax,%rax,1)
L60:
  movsd  (%rbx),%xmm0
  andpd  D9(%rip),%xmm0
L156:
  sub    $0x1,%r12d
  movsd  %xmm0,-0x8(%rbx)
  sub    $0x8,%rbx
  cmp    $0xffffffff,%r12d
  je     L181
L78:
  movsd  (%rbx),%xmm1
  movsd  -0x8(%rbx),%xmm0
  mov    %r12d,%edx
  mov    %r14d,%esi
  xorpd  (%rsp),%xmm1
  mov    %r13,%rdi
  call   <jrotate@plt>
  movsd  -0x8(%rbx),%xmm0
  pxor   %xmm2,%xmm2
  ucomisd %xmm2,%xmm0
  jp     L51
  je     L60
L51:
  movsd  (%rbx),%xmm1
  mulsd  %xmm0,%xmm0
  mulsd  %xmm1,%xmm1
  addsd  %xmm1,%xmm0
  ucomisd %xmm0,%xmm2
  ja     L15
  sqrtsd %xmm0,%xmm0
  jmp    L156
  nopl   0x0(%rax)
L181:
  test   %r14d,%r14d
  jle    L163
  movslq %r14d,%rdx
  lea    0x8(%r15),%rsi
  lea    0x0(%r13,%rdx,8),%rax
  cmp    %rax,%r15
  setae  %al
  cmp    %rsi,%r13
  setae  %sil
  or     %sil,%al
  je     L91
  lea    0x8(%rbp),%rax
  cmp    %rax,%r13
  setne  %sil
  cmp    $0x1,%r14d
  setne  %al
  test   %al,%sil
  je     L91
  movsd  (%r15),%xmm1
  mov    %r14d,%edx
  xor    %eax,%eax
  shr    %edx
  unpcklpd %xmm1,%xmm1
  shl    $0x4,%rdx
  nopw   0x0(%rax,%rax,1)
L108:
  movupd 0x0(%rbp,%rax,1),%xmm0
  movupd 0x0(%r13,%rax,1),%xmm5
  mulpd  %xmm1,%xmm0
  addpd  %xmm5,%xmm0
  movups %xmm0,0x0(%r13,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rdx
  jne    L108
  mov    %r14d,%eax
  and    $0xfffffffe,%eax
  test   $0x1,%r14b
  je     L163
  movsd  0x0(%rbp,%rax,8),%xmm0
  lea    0x0(%r13,%rax,8),%rdx
  mulsd  (%r15),%xmm0
  addsd  (%rdx),%xmm0
  movsd  %xmm0,(%rdx)
L163:
  mov    0x10(%rsp),%eax
  test   %eax,%eax
  jle    L79
  mov    0x18(%rsp),%rax
  movq   D12(%rip),%xmm7
  mov    %r14d,%r15d
  xor    %ebx,%ebx
  lea    0x10(%rax),%rcx
  lea    0x8(%r13,%rax,1),%rbp
  movaps %xmm7,(%rsp)
  mov    %rcx,0x10(%rsp)
  movslq %r14d,%rcx
  neg    %rcx
  lea    0x0(,%rcx,8),%r12
  nopw   0x0(%rax,%rax,1)
L12:
  movsd  0x0(%rbp),%xmm1
  xorpd  (%rsp),%xmm1
  mov    %ebx,%edx
  mov    %r14d,%esi
  movsd  0x0(%rbp,%r12,1),%xmm0
  mov    %r13,%rdi
  add    $0x1,%ebx
  call   <jrotate@plt>
  mov    %r15d,%eax
  add    0x10(%rsp),%rbp
  add    %r14d,%r15d
  cmp    %eax,%ebx
  jl     L12
L79:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L91:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L97:
  movsd  0x0(%rbp,%rax,8),%xmm0
  mulsd  (%r15),%xmm0
  addsd  0x0(%r13,%rax,8),%xmm0
  movsd  %xmm0,0x0(%r13,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L97
  jmp    L163
L15:
  call   <sqrt@plt>
  jmp    L156
```

tool_calls: name: disassemble_data
arguments: data_label: D12
type_guessed: byte[8]
name: disassemble_data
arguments: data_label: D9
type_guessed: qword[2]

tool: {"D12": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80]}

tool: {"D9": [0x7fffffffffffffff,0x0000000000000000]}

assistant: ```c
void qrupdate(double *R, int N, double *u, double *v) {
  int i, j, k;
  k = N - 1;
  while (u[k] == 0 && k > 0) {
    k--;
  }
  for (i = k - 1; i >= 0; --i) {
    jrotate(R, N, u[i], -u[i + 1], i);
    if (u[i] == 0) {
      u[i] = fabs(u[i + 1]);
    } else {
      u[i] = sqrt(u[i] * u[i] + u[i + 1] * u[i + 1]);
    }
  }
  for (i = 0; i < N; ++i) {
    R[i] += u[0] * v[i];
  }
  for (i = 0; i <= k - 1; ++i) {
    j = i * N;
    k = j + N;
    jrotate(R, N, R[j + i], -R[k + i], i);
  }
}
```