user: What would the C source look like for the assembly code provided here?

```asm
<traparea>:
  endbr64
  push   %rbp
  pxor   %xmm4,%xmm4
  movaps %xmm0,%xmm5
  mov    %rdi,%rbp
  cvtss2sd %xmm1,%xmm4
  sub    $0x60,%rsp
  movsd  D20(%rip),%xmm1
  subss  D23(%rip),%xmm5
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  lea    0x44(%rsp),%rdx
  movss  %xmm0,0x10(%rsp)
  lea    0x24(%rsp),%rsi
  mulsd  %xmm4,%xmm1
  movsd  %xmm4,0x18(%rsp)
  movaps %xmm5,%xmm0
  movss  %xmm5,0x14(%rsp)
  addsd  %xmm4,%xmm1
  mulsd  D50(%rip),%xmm1
  cvtsd2ss %xmm1,%xmm1
  movss  %xmm1,0x8(%rsp)
  call   <phi2xy@plt>
  movss  0x10(%rsp),%xmm2
  movss  0x8(%rsp),%xmm1
  mov    %rbp,%rdi
  movss  D23(%rip),%xmm3
  lea    0x48(%rsp),%rdx
  lea    0x28(%rsp),%rsi
  addss  %xmm2,%xmm3
  movaps %xmm3,%xmm0
  movss  %xmm3,0x10(%rsp)
  call   <phi2xy@plt>
  movsd  0x18(%rsp),%xmm4
  movss  0x10(%rsp),%xmm3
  mov    %rbp,%rdi
  lea    0x4c(%rsp),%rdx
  lea    0x2c(%rsp),%rsi
  pxor   %xmm1,%xmm1
  movapd %xmm4,%xmm2
  divsd  D20(%rip),%xmm2
  addsd  %xmm4,%xmm2
  movaps %xmm3,%xmm0
  mulsd  D50(%rip),%xmm2
  cvtsd2ss %xmm2,%xmm1
  movss  %xmm1,0x8(%rsp)
  call   <phi2xy@plt>
  movss  0x14(%rsp),%xmm5
  movss  0x8(%rsp),%xmm1
  mov    %rbp,%rdi
  lea    0x50(%rsp),%rdx
  lea    0x30(%rsp),%rsi
  movaps %xmm5,%xmm0
  call   <phi2xy@plt>
  movss  0x28(%rsp),%xmm3
  movss  0x48(%rsp),%xmm2
  movss  0x24(%rsp),%xmm0
  movss  0x4c(%rsp),%xmm1
  subss  %xmm3,%xmm0
  subss  %xmm2,%xmm1
  mulss  %xmm1,%xmm0
  movss  0x44(%rsp),%xmm1
  subss  %xmm2,%xmm1
  movss  0x2c(%rsp),%xmm2
  subss  %xmm3,%xmm2
  mulss  %xmm2,%xmm1
  subss  %xmm1,%xmm0
  cvttss2si %xmm0,%edi
  call   <fabs@plt>
  movss  0x50(%rsp),%xmm2
  movss  0x30(%rsp),%xmm3
  movss  0x4c(%rsp),%xmm1
  movsd  %xmm0,0x8(%rsp)
  movss  0x24(%rsp),%xmm0
  subss  %xmm2,%xmm1
  subss  %xmm3,%xmm0
  mulss  %xmm1,%xmm0
  movss  0x44(%rsp),%xmm1
  subss  %xmm2,%xmm1
  movss  0x2c(%rsp),%xmm2
  subss  %xmm3,%xmm2
  mulss  %xmm2,%xmm1
  subss  %xmm1,%xmm0
  cvttss2si %xmm0,%edi
  call   <fabs@plt>
  addsd  0x8(%rsp),%xmm0
  mulsd  D50(%rip),%xmm0
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  add    $0x60,%rsp
  cvtsd2ss %xmm0,%xmm0
  pop    %rbp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_label: D20
datatype: byte[8]
name: read_data
arguments: data_label: D23
datatype: byte[4]
name: read_data
arguments: data_label: D50
datatype: f64

tool: {"D20": [0x29,0x5c,0x8f,0xc2,0xf5,0x28,0xf0,0x3f]}

tool: {"D23": [0x35,0xfa,0x0e,0x3c]}

tool: D50: 0.5

assistant: ```c
float traparea(float a[], float cphi, float r) {
  float phi2xy(float phi, float r, float a[], float *x, float *y);
  float x[5], y[5], area, delphi;
  delphi = 1.0 / 180. * 3.14159265352982;
  phi2xy(cphi - delphi / 2., (r * (1 + 0.01) + r) / 2., a, &x[1], &y[1]);
  phi2xy(cphi + delphi / 2., (r * (1 + 0.01) + r) / 2., a, &x[2], &y[2]);
  phi2xy(cphi + delphi / 2., (r / (1 + 0.01) + r) / 2., a, &x[3], &y[3]);
  phi2xy(cphi - delphi / 2., (r / (1 + 0.01) + r) / 2., a, &x[4], &y[4]);
  area = 0.5 * (fabs((x[1] - x[2]) * (y[3] - y[2]) - (y[1] - y[2]) * (x[3] - x[2])) + fabs((x[1] - x[4]) * (y[3] - y[4]) - (y[1] - y[4]) * (x[3] - x[4])));
  return (area);
}
```