user: 请从给定的汇编指令推导出C源代码:

```asm
<rdfreverserxn>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x20,%rsp
  mov    %rdi,%r13
  mov    %rsi,%rbx
  mov    %edx,%r12d
  movapd %xmm0,%xmm5
  movsd  %xmm0,0x10(%rsp)
  movapd %xmm2,%xmm7
  movsd  %xmm2,0x18(%rsp)
  mulsd  D54(%rip),%xmm0
  mulsd  %xmm5,%xmm0
  mulsd  %xmm5,%xmm0
  movsd  D103(%rip),%xmm2
  movapd %xmm2,%xmm6
  divsd  %xmm0,%xmm6
  movsd  %xmm6,0x8(%rsp)
  ucomisd D22(%rip),%xmm1
  jp     L14
  movapd %xmm6,%xmm0
  jne    L14
  test   %edx,%edx
  jle    L41
  mulsd  %xmm7,%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,(%rsp)
  mov    %rdi,%rbp
  lea    -0x1(%rdx),%eax
  lea    (%rdi,%rax,8),%r12
L65:
  movsd  0x0(%rbp),%xmm1
  divsd  0x10(%rsp),%xmm1
  movapd %xmm1,%xmm0
  xorpd  D60(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  D12(%rip),%xmm0
  call   <exp@plt>
  mulsd  (%rsp),%xmm0
  addsd  (%rbx),%xmm0
  movsd  %xmm0,(%rbx)
  mov    %rbp,%rax
  add    $0x8,%rbp
  add    $0x8,%rbx
  cmp    %r12,%rax
  jne    L65
L41:
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L14:
  divsd  0x10(%rsp),%xmm1
  movsd  %xmm1,(%rsp)
  pxor   %xmm0,%xmm0
  ucomisd 0x0(%r13),%xmm0
  jp     L74
  je     L32
L74:
  mov    $0x0,%eax
L90:
  cmp    %eax,%r12d
  jle    L41
  movsd  0x8(%rsp),%xmm2
  mulsd  0x18(%rsp),%xmm2
  movq   %xmm2,%r14
  movslq %eax,%rdx
  lea    0x0(,%rdx,8),%rcx
  lea    0x0(%r13,%rcx,1),%rbp
  add    %rcx,%rbx
  sub    $0x1,%r12d
  sub    %eax,%r12d
  add    %rdx,%r12
  lea    0x8(%r13,%r12,8),%r12
L45:
  movsd  0x0(%rbp),%xmm0
  divsd  0x10(%rsp),%xmm0
  movsd  %xmm0,0x8(%rsp)
  movapd %xmm0,%xmm1
  subsd  (%rsp),%xmm1
  movapd %xmm1,%xmm4
  xorpd  D60(%rip),%xmm4
  movapd %xmm4,%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  D12(%rip),%xmm0
  call   <exp@plt>
  movq   %xmm0,%r13
  movsd  (%rsp),%xmm3
  addsd  0x8(%rsp),%xmm3
  movapd %xmm3,%xmm5
  xorpd  D60(%rip),%xmm5
  movapd %xmm5,%xmm0
  mulsd  %xmm3,%xmm0
  mulsd  D12(%rip),%xmm0
  call   <exp@plt>
  movapd %xmm0,%xmm2
  movq   %r14,%xmm6
  divsd  0x8(%rsp),%xmm6
  movapd %xmm6,%xmm0
  divsd  (%rsp),%xmm0
  movq   %r13,%xmm1
  subsd  %xmm2,%xmm1
  mulsd  %xmm1,%xmm0
  addsd  (%rbx),%xmm0
  movsd  %xmm0,(%rbx)
  add    $0x8,%rbp
  add    $0x8,%rbx
  cmp    %r12,%rbp
  jne    L45
  jmp    L41
L32:
  movapd %xmm1,%xmm0
  xorpd  D60(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  D12(%rip),%xmm0
  call   <exp@plt>
  movapd %xmm0,%xmm1
  movsd  0x8(%rsp),%xmm0
  mulsd  0x18(%rsp),%xmm0
  addsd  %xmm0,%xmm0
  mulsd  %xmm1,%xmm0
  addsd  (%rbx),%xmm0
  movsd  %xmm0,(%rbx)
  mov    $0x1,%eax
  jmp    L90
```

tool_calls: name: read_data
arguments: data_label: D54
type_infered: byte[8]
name: read_data
arguments: data_label: D103
type_infered: f64
name: read_data
arguments: data_label: D22
type_infered: byte[8]
name: read_data
arguments: data_label: D60
type_infered: byte[16]
name: read_data
arguments: data_label: D12
type_infered: byte[8]

tool: {"D54": [0xaf,0xac,0xf2,0xdf,0xcc,0x7f,0x3f,0x40]}

tool: D103: 1

tool: {"D22": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D60": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D12": [0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0x3f]}

assistant: ```c
void rdfreverserxn(double *r, double *rdf, int n, double step, double b, double flux) {
  int i;
  double rr, k;
  k = 1.0 / (4.0 * 3.14159265358979323846 * 2.50662827462 * step * step * step);
  if (b == 0) {
    for (i = 0; i < n; i++) {
      rr = r[i] / step;
      rdf[i] += flux * k * 2.0 * exp(-rr * rr / 2.0);
    }
  } else {
    b /= step;
    if (r[i = 0] == 0)
      rdf[i++] += flux * k * 2.0 * exp(-b * b / 2.0);
    for (; i < n; i++) {
      rr = r[i] / step;
      rdf[i] += flux * k / rr / b * (exp(-(rr - b) * (rr - b) / 2.0) - exp(-(rr + b) * (rr + b) / 2.0));
    }
  }
  return;
}
```