user: 请从给定的汇编指令推导出C源代码：

```asm
<barnsley>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  lea    (%rdi,%rdi,1),%ebx
  shl    $0x4,%edi
  call   <malloc@plt>
  pxor   %xmm0,%xmm0
  xor    %edi,%edi
  movups %xmm0,(%rax)
  mov    %rax,%r12
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  cmp    $0x2,%ebx
  jle    L43
  sub    $0x3,%ebx
  mov    %r12,%rbp
  shr    %ebx
  add    $0x1,%ebx
  shl    $0x4,%rbx
  add    %r12,%rbx
  jmp    L42
  nopl   0x0(%rax,%rax,1)
L30:
  movsd  0x0(%rbp),%xmm0
  movsd  0x8(%rbp),%xmm1
  cmp    $0x55,%eax
  jg     L6
  movsd  D23(%rip),%xmm3
  movsd  D117(%rip),%xmm4
  movapd %xmm0,%xmm2
  mulsd  D43(%rip),%xmm0
  mulsd  %xmm1,%xmm4
  mulsd  %xmm3,%xmm2
  mulsd  %xmm3,%xmm1
  addsd  %xmm4,%xmm2
  addsd  %xmm1,%xmm0
  addsd  D81(%rip),%xmm0
  movsd  %xmm2,0x10(%rbp)
L55:
  movsd  %xmm0,0x18(%rbp)
  add    $0x10,%rbp
  cmp    %rbx,%rbp
  je     L43
L42:
  xor    %eax,%eax
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x51eb851f,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x25,%rdx
  sub    %ecx,%edx
  imul   $0x64,%edx,%ecx
  sub    %ecx,%eax
  jns    L30
  movsd  D87(%rip),%xmm0
  mulsd  0x8(%rbp),%xmm0
  movq   $0x0,0x10(%rbp)
  add    $0x10,%rbp
  movsd  %xmm0,0x8(%rbp)
  cmp    %rbx,%rbp
  jne    L42
L43:
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L6:
  cmp    $0x5c,%eax
  jg     L16
  movsd  D103(%rip),%xmm2
  movsd  D53(%rip),%xmm3
  mulsd  %xmm0,%xmm2
  mulsd  %xmm1,%xmm3
  mulsd  D26(%rip),%xmm0
  mulsd  D51(%rip),%xmm1
  subsd  %xmm3,%xmm2
  addsd  %xmm1,%xmm0
  addsd  D81(%rip),%xmm0
  movsd  %xmm2,0x10(%rbp)
  jmp    L55
  nopw   0x0(%rax,%rax,1)
L16:
  movsd  D61(%rip),%xmm2
  movsd  D101(%rip),%xmm3
  mulsd  %xmm0,%xmm2
  mulsd  %xmm1,%xmm3
  mulsd  D53(%rip),%xmm0
  mulsd  D30(%rip),%xmm1
  addsd  %xmm3,%xmm2
  addsd  %xmm1,%xmm0
  addsd  D120(%rip),%xmm0
  movsd  %xmm2,0x10(%rbp)
  jmp    L55
```

tool_calls: name: parse_data
arguments: data_tag: D23
type_guessed: f64
name: parse_data
arguments: data_tag: D117
type_guessed: f64
name: parse_data
arguments: data_tag: D43
type_guessed: byte[8]
name: parse_data
arguments: data_tag: D81
type_guessed: f64
name: parse_data
arguments: data_tag: D87
type_guessed: f64
name: parse_data
arguments: data_tag: D103
type_guessed: f64
name: parse_data
arguments: data_tag: D53
type_guessed: f64
name: parse_data
arguments: data_tag: D26
type_guessed: f64
name: parse_data
arguments: data_tag: D51
type_guessed: f64
name: parse_data
arguments: data_tag: D61
type_guessed: byte[8]
name: parse_data
arguments: data_tag: D101
type_guessed: f64
name: parse_data
arguments: data_tag: D30
type_guessed: f64
name: parse_data
arguments: data_tag: D120
type_guessed: f64

tool: D23: 0.85

tool: D117: 0.04

tool: {"D43": [0x7b,0x14,0xae,0x47,0xe1,0x7a,0xa4,0xbf]}

tool: D81: 1.6

tool: D87: 0.16

tool: D103: 0.2

tool: D53: 0.26

tool: D26: 0.23

tool: D51: 0.22

tool: {"D61": [0x33,0x33,0x33,0x33,0x33,0x33,0xc3,0xbf]}

tool: D101: 0.28

tool: D30: 0.24

tool: D120: 0.44

assistant: ```c
double *barnsley(int n_iter) {
  int i;
  int test;
  double *points = malloc(2 * n_iter * sizeof(double));
  points[0] = 0.0;
  points[1] = 0.0;
  srand(time(NULL));
  for (i = 2; i < (2 * n_iter); i += 2) {
    test = rand() % 100;
    if (test < 0) {
      points[i] = 0.0;
      points[i + 1] = 0.16 * points[i - 1];
    } else if (test < 86) {
      points[i] = 0.85 * points[i - 2] + 0.04 * points[i - 1];
      points[i + 1] = -0.04 * points[i - 2] + 0.85 * points[i - 1] + 1.6;
    } else if (test < 93) {
      points[i] = 0.20 * points[i - 2] - 0.26 * points[i - 1];
      points[i + 1] = 0.23 * points[i - 2] + 0.22 * points[i - 1] + 1.6;
    } else {
      points[i] = -0.15 * points[i - 2] + 0.28 * points[i - 1];
      points[i + 1] = 0.26 * points[i - 2] + 0.24 * points[i - 1] + 0.44;
    }
  }
  return points;
}
```