user: 请从给定的汇编指令推导出C源代码:

```asm
<vol_draw_sierpinski_pyramid>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  movss  %xmm0,-0x14(%rbp)
  movss  %xmm1,-0x18(%rbp)
  movss  %xmm2,-0x1c(%rbp)
  movss  %xmm3,-0x20(%rbp)
  mov    %edi,%eax
  mov    %ax,-0x24(%rbp)
  cmpw   $0x0,-0x24(%rbp)
  jne    L1
  movss  -0x20(%rbp),%xmm2
  movss  -0x1c(%rbp),%xmm1
  movss  -0x18(%rbp),%xmm0
  mov    -0x14(%rbp),%eax
  movaps %xmm2,%xmm3
  movaps %xmm1,%xmm2
  movaps %xmm0,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_fill_pyramid@plt>
  jmp    L6
L1:
  movss  -0x20(%rbp),%xmm0
  movss  D16(%rip),%xmm1
  divss  %xmm1,%xmm0
  movss  %xmm0,-0x4(%rbp)
  movzwl -0x24(%rbp),%eax
  sub    $0x1,%eax
  movzwl %ax,%edx
  movss  -0x4(%rbp),%xmm2
  movss  -0x1c(%rbp),%xmm1
  movss  -0x18(%rbp),%xmm0
  mov    -0x14(%rbp),%eax
  mov    %edx,%edi
  movaps %xmm2,%xmm3
  movaps %xmm1,%xmm2
  movaps %xmm0,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_sierpinski_pyramid>
  movzwl -0x24(%rbp),%eax
  sub    $0x1,%eax
  movzwl %ax,%edx
  movss  -0x14(%rbp),%xmm0
  addss  -0x4(%rbp),%xmm0
  movd   %xmm0,%eax
  movss  -0x4(%rbp),%xmm2
  movss  -0x1c(%rbp),%xmm1
  movss  -0x18(%rbp),%xmm0
  mov    %edx,%edi
  movaps %xmm2,%xmm3
  movaps %xmm1,%xmm2
  movaps %xmm0,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_sierpinski_pyramid>
  movzwl -0x24(%rbp),%eax
  sub    $0x1,%eax
  movzwl %ax,%edx
  movss  -0x1c(%rbp),%xmm0
  movaps %xmm0,%xmm1
  addss  -0x4(%rbp),%xmm1
  movss  -0x4(%rbp),%xmm2
  movss  -0x18(%rbp),%xmm0
  mov    -0x14(%rbp),%eax
  mov    %edx,%edi
  movaps %xmm2,%xmm3
  movaps %xmm1,%xmm2
  movaps %xmm0,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_sierpinski_pyramid>
  movzwl -0x24(%rbp),%eax
  sub    $0x1,%eax
  movzwl %ax,%edx
  movss  -0x1c(%rbp),%xmm0
  movaps %xmm0,%xmm1
  addss  -0x4(%rbp),%xmm1
  movss  -0x14(%rbp),%xmm0
  addss  -0x4(%rbp),%xmm0
  movd   %xmm0,%eax
  movss  -0x4(%rbp),%xmm2
  movss  -0x18(%rbp),%xmm0
  mov    %edx,%edi
  movaps %xmm2,%xmm3
  movaps %xmm1,%xmm2
  movaps %xmm0,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_sierpinski_pyramid>
  movzwl -0x24(%rbp),%eax
  sub    $0x1,%eax
  movzwl %ax,%edx
  movss  -0x4(%rbp),%xmm0
  movss  D16(%rip),%xmm1
  divss  %xmm1,%xmm0
  movaps %xmm0,%xmm2
  addss  -0x1c(%rbp),%xmm2
  movss  -0x18(%rbp),%xmm0
  movaps %xmm0,%xmm4
  addss  -0x4(%rbp),%xmm4
  movss  -0x4(%rbp),%xmm0
  movss  D16(%rip),%xmm1
  divss  %xmm1,%xmm0
  addss  -0x14(%rbp),%xmm0
  movd   %xmm0,%eax
  movss  -0x4(%rbp),%xmm0
  mov    %edx,%edi
  movaps %xmm0,%xmm3
  movaps %xmm4,%xmm1
  movd   %eax,%xmm0
  call   <vol_draw_sierpinski_pyramid>
L6:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D16
type_guessed: f32

tool: D16: 2

assistant: ```c
void vol_draw_sierpinski_pyramid(float x, float y, float z, float size, unsigned short lvl) {
  if (lvl == 0) {
    vol_draw_fill_pyramid(x, y, z, size);
    return;
  }
  float half = size / 2;
  vol_draw_sierpinski_pyramid(x, y, z, half, lvl - 1);
  vol_draw_sierpinski_pyramid(x + half, y, z, half, lvl - 1);
  vol_draw_sierpinski_pyramid(x, y, z + half, half, lvl - 1);
  vol_draw_sierpinski_pyramid(x + half, y, z + half, half, lvl - 1);
  vol_draw_sierpinski_pyramid(x + (half / 2), y + half, z + (half / 2), half, lvl - 1);
}
```