user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x78,%rsp
  mov    %edi,-0x74(%rbp)
  mov    %rsi,-0x80(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  cmpl   $0x2,-0x74(%rbp)
  jne    L100
  mov    -0x80(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <atoi@plt>
  jmp    L124
L100:
  mov    $0x7d0,%eax
L124:
  mov    %eax,-0x6c(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  sub    $0x1,%rax
  mov    %rax,-0x58(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  mov    %rax,-0x90(%rbp)
  movq   $0x0,-0x88(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  mov    %rax,-0xa0(%rbp)
  movq   $0x0,-0x98(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L125:
  cmp    %rdx,%rsp
  je     L138
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L125
L138:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L25
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L25:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  sub    $0x1,%rax
  mov    %rax,-0x48(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  mov    %rax,%r14
  mov    $0x0,%r15d
  mov    -0x6c(%rbp),%eax
  cltq
  mov    %rax,%r12
  mov    $0x0,%r13d
  mov    -0x6c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L121:
  cmp    %rdx,%rsp
  je     L108
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L121
L108:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L4
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L4:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x40(%rbp)
  movl   $0x0,-0x70(%rbp)
  jmp    L33
L103:
  mov    -0x50(%rbp),%rax
  mov    -0x70(%rbp),%edx
  movslq %edx,%rdx
  movsd  D7(%rip),%xmm0
  movsd  %xmm0,(%rax,%rdx,8)
  addl   $0x1,-0x70(%rbp)
L33:
  mov    -0x70(%rbp),%eax
  cmp    -0x6c(%rbp),%eax
  jl     L103
  movl   $0x0,-0x70(%rbp)
  jmp    L146
L43:
  mov    -0x40(%rbp),%rdx
  mov    -0x50(%rbp),%rcx
  mov    -0x6c(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <eval_AtA_times_u@plt>
  mov    -0x50(%rbp),%rdx
  mov    -0x40(%rbp),%rcx
  mov    -0x6c(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <eval_AtA_times_u@plt>
  addl   $0x1,-0x70(%rbp)
L146:
  cmpl   $0x9,-0x70(%rbp)
  jle    L43
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x60(%rbp)
  movsd  -0x60(%rbp),%xmm0
  movsd  %xmm0,-0x68(%rbp)
  movl   $0x0,-0x70(%rbp)
  jmp    L134
L7:
  mov    -0x50(%rbp),%rax
  mov    -0x70(%rbp),%edx
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm1
  mov    -0x40(%rbp),%rax
  mov    -0x70(%rbp),%edx
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x68(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x68(%rbp)
  mov    -0x40(%rbp),%rax
  mov    -0x70(%rbp),%edx
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm1
  mov    -0x40(%rbp),%rax
  mov    -0x70(%rbp),%edx
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x60(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x60(%rbp)
  addl   $0x1,-0x70(%rbp)
L134:
  mov    -0x70(%rbp),%eax
  cmp    -0x6c(%rbp),%eax
  jl     L7
  movsd  -0x68(%rbp),%xmm0
  divsd  -0x60(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  call   <sqrt@plt>
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  lea    D12(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  mov    %rbx,%rsp
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L22
  call   <__stack_chk_fail@plt>
L22:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D7
type: byte[8]
name: disassemble_data
arguments: data_tag: D12
type: string

tool: {"D7": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

tool: D12: %0.9f


assistant: ```c
int main(int argc, char *argv[]) {
  int i;
  const int N = ((argc == 2) ? atoi(argv[1]) : 2000);
  double u[N], v[N], vBv, vv;
  for (i = 0; i < N; i++)
    u[i] = 1;
  for (i = 0; i < 10; i++) {
    eval_AtA_times_u(N, u, v);
    eval_AtA_times_u(N, v, u);
  }
  vBv = vv = 0;
  for (i = 0; i < N; i++) {
    vBv += u[i] * v[i];
    vv += v[i] * v[i];
  }
  printf("%0.9f\n", sqrt(vBv / vv));
  return 0;
}
```