user: 下面的汇编指令对应的C源代码是什么:

```asm
<calc_mean_and_covariance2>:
  endbr64
  push   %rbx
  mov    %rcx,%rbx
  test   %edx,%edx
  jle    L72
  lea    -0x1(%rdx),%r11d
  pxor   %xmm5,%xmm5
  mov    %rsi,%r9
  mov    %rsi,%rcx
  lea    (%r11,%r11,4),%rax
  mov    %rdi,%rsi
  movaps %xmm5,%xmm2
  mov    %edx,%edx
  lea    (%r11,%rax,4),%rax
  movaps %xmm5,%xmm3
  lea    0x54(%rdi,%rax,4),%r10
  cs nopw 0x0(%rax,%rax,1)
L115:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L119:
  movss  (%rcx,%rax,8),%xmm0
  ucomiss D17(%rip),%xmm0
  jp     L122
  je     L104
L122:
  movss  0x4(%rcx,%rax,8),%xmm1
  ucomiss D17(%rip),%xmm1
  jp     L74
  je     L104
L74:
  movss  (%rsi,%rax,4),%xmm4
  mulss  %xmm4,%xmm0
  addss  %xmm4,%xmm5
  mulss  %xmm4,%xmm1
  addss  %xmm0,%xmm3
  addss  %xmm1,%xmm2
L104:
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L119
  add    $0x54,%rsi
  add    $0xa8,%rcx
  cmp    %r10,%rsi
  jne    L115
  lea    0x0(,%r11,4),%rax
  movss  %xmm3,(%rbx)
  pxor   %xmm4,%xmm4
  lea    0x4(%r9),%rsi
  lea    (%rax,%r11,1),%rdx
  movss  %xmm2,0x4(%rbx)
  movaps %xmm4,%xmm6
  movaps %xmm4,%xmm7
  lea    (%r11,%rdx,2),%rdx
  movq   $0x0,(%r8)
  lea    0x4(%rdi,%rax,1),%rcx
  movq   $0x0,0x8(%r8)
  lea    0x58(%rdi,%rdx,8),%r9
  mov    $0xfffffffffffffffc,%rdi
  sub    %rax,%rdi
  nopl   (%rax)
L25:
  lea    (%rdi,%rcx,1),%rdx
  mov    %rsi,%rax
  nop
L29:
  movss  -0x4(%rax),%xmm0
  ucomiss D17(%rip),%xmm0
  jp     L77
  je     L61
L77:
  movss  (%rax),%xmm1
  ucomiss D17(%rip),%xmm1
  jp     L96
  je     L61
L96:
  subss  %xmm3,%xmm0
  subss  %xmm2,%xmm1
  mulss  %xmm0,%xmm0
  mulss  (%rdx),%xmm0
  mulss  %xmm1,%xmm1
  addss  %xmm0,%xmm7
  movss  %xmm7,(%r8)
  mulss  (%rdx),%xmm1
  addss  %xmm1,%xmm6
  movss  %xmm6,0xc(%r8)
  movss  -0x4(%rax),%xmm0
  movss  (%rax),%xmm1
  subss  %xmm3,%xmm0
  subss  %xmm2,%xmm1
  mulss  %xmm1,%xmm0
  mulss  (%rdx),%xmm0
  addss  %xmm0,%xmm4
  movss  %xmm4,0x4(%r8)
L61:
  add    $0x4,%rdx
  add    $0x8,%rax
  cmp    %rcx,%rdx
  jne    L29
  add    $0x54,%rcx
  add    $0xa8,%rsi
  cmp    %r9,%rcx
  jne    L25
L87:
  divss  %xmm5,%xmm4
  pop    %rbx
  divss  %xmm5,%xmm7
  movss  %xmm4,0x4(%r8)
  movss  %xmm4,0x8(%r8)
  divss  %xmm5,%xmm6
  movss  %xmm7,(%r8)
  movss  %xmm6,0xc(%r8)
  ret
L72:
  pxor   %xmm6,%xmm6
  movq   $0x0,(%rcx)
  movaps %xmm6,%xmm4
  movaps %xmm6,%xmm7
  movaps %xmm6,%xmm5
  jmp    L87
```

tool_calls: name: extract_symbolic_data
arguments: label: D17
type_guessed: f32

tool: D17: 100

assistant: ```c
void calc_mean_and_covariance2(float weights[21][21], float velocities[21][21][2], int weighted_size, float mean[2], float covariance[2][2]) {
  int i, j, k, Q, fdr, a, b;
  float vx, vy, w_sum;
  w_sum = vx = vy = 0.0;
  for (i = 0; i < weighted_size; i++)
    for (j = 0; j < weighted_size; j++) {
      if (velocities[i][j][0] != 100.0 && velocities[i][j][1] != 100.0) {
        w_sum += weights[i][j];
        vx += weights[i][j] * velocities[i][j][0];
        vy += weights[i][j] * velocities[i][j][1];
      }
    }
  mean[0] = vx;
  mean[1] = vy;
  for (i = 0; i < 2; i++)
    for (j = 0; j < 2; j++)
      covariance[i][j] = 0.0;
  for (i = 0; i < weighted_size; i++)
    for (j = 0; j < weighted_size; j++) {
      if (velocities[i][j][0] != 100.0 && velocities[i][j][1] != 100.0) {
        covariance[0][0] += (velocities[i][j][0] - vx) * (velocities[i][j][0] - vx) * weights[i][j];
        covariance[1][1] += (velocities[i][j][1] - vy) * (velocities[i][j][1] - vy) * weights[i][j];
        covariance[0][1] += (velocities[i][j][0] - vx) * (velocities[i][j][1] - vy) * weights[i][j];
      }
    }
  covariance[0][0] /= w_sum;
  covariance[0][1] /= w_sum;
  covariance[1][1] /= w_sum;
  covariance[1][0] = covariance[0][1];
}
```