user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<rdfreverserxn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %edx,-0x44(%rbp)
  movsd  %xmm0,-0x50(%rbp)
  movsd  %xmm1,-0x58(%rbp)
  movsd  %xmm2,-0x60(%rbp)
  movsd  -0x50(%rbp),%xmm1
  movsd  D67(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  -0x50(%rbp),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x50(%rbp),%xmm1
  movsd  D91(%rip),%xmm0
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x20(%rbp)
  pxor   %xmm0,%xmm0
  ucomisd -0x58(%rbp),%xmm0
  jp     L28
  pxor   %xmm0,%xmm0
  ucomisd -0x58(%rbp),%xmm0
  jne    L28
  movl   $0x0,-0x24(%rbp)
  jmp    L70
L39:
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  divsd  -0x50(%rbp),%xmm0
  movsd  %xmm0,-0x18(%rbp)
  movsd  -0x60(%rbp),%xmm0
  mulsd  -0x20(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,-0x68(%rbp)
  movsd  -0x18(%rbp),%xmm0
  movq   D27(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mulsd  -0x18(%rbp),%xmm0
  movsd  D28(%rip),%xmm1
  movapd %xmm0,%xmm3
  divsd  %xmm1,%xmm3
  movq   %xmm3,%rax
  movq   %rax,%xmm0
  call   <exp@plt>
  movsd  -0x68(%rbp),%xmm1
  mulsd  %xmm0,%xmm1
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x24(%rbp)
L70:
  mov    -0x24(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L39
  jmp    L72
L28:
  movsd  -0x58(%rbp),%xmm0
  divsd  -0x50(%rbp),%xmm0
  movsd  %xmm0,-0x58(%rbp)
  movl   $0x0,-0x24(%rbp)
  mov    -0x38(%rbp),%rax
  movsd  (%rax),%xmm0
  pxor   %xmm1,%xmm1
  ucomisd %xmm1,%xmm0
  jp     L9
  pxor   %xmm1,%xmm1
  ucomisd %xmm1,%xmm0
  jne    L26
  movsd  -0x60(%rbp),%xmm0
  mulsd  -0x20(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,-0x68(%rbp)
  movsd  -0x58(%rbp),%xmm0
  movq   D27(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  mulsd  -0x58(%rbp),%xmm0
  movsd  D28(%rip),%xmm1
  movapd %xmm0,%xmm4
  divsd  %xmm1,%xmm4
  movq   %xmm4,%rax
  movq   %rax,%xmm0
  call   <exp@plt>
  movsd  -0x68(%rbp),%xmm1
  mulsd  %xmm0,%xmm1
  mov    -0x24(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x24(%rbp)
  movslq %eax,%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x40(%rbp),%rdx
  add    %rcx,%rdx
  movsd  (%rdx),%xmm0
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
L26:
  jmp    L9
L7:
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  divsd  -0x50(%rbp),%xmm0
  movsd  %xmm0,-0x18(%rbp)
  movsd  -0x60(%rbp),%xmm0
  mulsd  -0x20(%rbp),%xmm0
  divsd  -0x18(%rbp),%xmm0
  divsd  -0x58(%rbp),%xmm0
  movsd  %xmm0,-0x68(%rbp)
  movsd  -0x18(%rbp),%xmm0
  subsd  -0x58(%rbp),%xmm0
  movq   D27(%rip),%xmm1
  xorpd  %xmm0,%xmm1
  movsd  -0x18(%rbp),%xmm0
  subsd  -0x58(%rbp),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  D28(%rip),%xmm1
  movapd %xmm0,%xmm5
  divsd  %xmm1,%xmm5
  movq   %xmm5,%rax
  movq   %rax,%xmm0
  call   <exp@plt>
  movq   %xmm0,%rbx
  movsd  -0x18(%rbp),%xmm0
  addsd  -0x58(%rbp),%xmm0
  movq   D27(%rip),%xmm1
  xorpd  %xmm0,%xmm1
  movsd  -0x18(%rbp),%xmm0
  addsd  -0x58(%rbp),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  D28(%rip),%xmm1
  movapd %xmm0,%xmm6
  divsd  %xmm1,%xmm6
  movq   %xmm6,%rax
  movq   %rax,%xmm0
  call   <exp@plt>
  movq   %rbx,%xmm1
  subsd  %xmm0,%xmm1
  mulsd  -0x68(%rbp),%xmm1
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x24(%rbp)
L9:
  mov    -0x24(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L7
  nop
L72:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: data_label: D67
type_infered: byte[8]
name: disassemble_data
arguments: data_label: D91
type_infered: f64
name: disassemble_data
arguments: data_label: D27
type_infered: byte[8]
name: disassemble_data
arguments: data_label: D28
type_infered: f64

tool: {"D67": [0xaf,0xac,0xf2,0xdf,0xcc,0x7f,0x3f,0x40]}

tool: D91: 1

tool: {"D27": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80]}

tool: D28: 2

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;
}
```