user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %r15
  lea    D45(%rip),%rdx
  mov    $0x2580,%esi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x458,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x448(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  lea    0x10(%rsp),%rbx
  lea    0x40(%rsp),%r15
  call   <initSerial@plt>
  mov    (%rsp),%edi
  lea    0x4(%rsp),%rsi
  xor    %eax,%eax
  mov    $0x1,%edx
  movq   $0x0,0x10(%rsp)
  movq   $0x5,0x18(%rsp)
  movq   $0xff0,0x20(%rsp)
  movq   $0x0,0x28(%rsp)
  movq   $0x80,0x30(%rsp)
  movq   $0xff0,0x38(%rsp)
  movl   $0xa3,0x4(%rsp)
  call   <write@plt>
  nopl   0x0(%rax,%rax,1)
L14:
  mov    (%rsp),%edi
  mov    %rbx,%rsi
  mov    $0x2,%edx
  xor    %eax,%eax
  add    $0x8,%rbx
  call   <write@plt>
  cmp    %rbx,%r15
  jne    L14
  mov    (%rsp),%edi
  lea    0x8(%rsp),%r13
  mov    $0x2,%edx
  xor    %ebp,%ebp
  mov    %r13,%rsi
  lea    D59(%rip),%r14
  movq   $0x0,0x8(%rsp)
  lea    D26(%rip),%r12
  call   <myReadfull@plt>
  mov    0x8(%rsp),%rdx
  test   %rdx,%rdx
  jle    L1
  nopw   0x0(%rax,%rax,1)
L0:
  mov    (%rsp),%edi
  mov    %r15,%rsi
  xor    %ebx,%ebx
  call   <myReadfull@plt>
  cmpq   $0x0,0x8(%rsp)
  jle    L12
  nopl   (%rax)
L30:
  mov    0x4(%r15,%rbx,4),%eax
  pxor   %xmm2,%xmm2
  pxor   %xmm1,%xmm1
  mov    %r12,%rdi
  pxor   %xmm0,%xmm0
  shl    $0x8,%eax
  or     (%r15,%rbx,4),%eax
  cvtsi2sd %eax,%xmm2
  mov    0x18(%rsp),%rax
  mulsd  D46(%rip),%xmm2
  imul   %rbx,%rax
  add    $0x2,%rbx
  sar    %rax
  cvtsi2sd %rax,%xmm1
  mov    0x30(%rsp),%rax
  mulsd  D31(%rip),%xmm1
  imul   %rbp,%rax
  cvtsi2sd %rax,%xmm0
  mulsd  D41(%rip),%xmm0
  mov    $0x3,%eax
  call   <printf@plt>
  cmp    %rbx,0x8(%rsp)
  jg     L30
L12:
  mov    %r14,%rdi
  add    $0x1,%rbp
  call   <puts@plt>
  mov    (%rsp),%edi
  mov    $0x2,%edx
  mov    %r13,%rsi
  call   <myReadfull@plt>
  mov    0x8(%rsp),%rdx
  test   %rdx,%rdx
  jg     L0
L1:
  mov    0x448(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L27
  add    $0x458,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L27:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D45
type: string
name: unpack_data
arguments: tag: D59
type: string
name: unpack_data
arguments: tag: D26
type: string
name: unpack_data
arguments: tag: D46
type: byte[8]
name: unpack_data
arguments: tag: D31
type: f64
name: unpack_data
arguments: tag: D41
type: f64

tool: D45: /dev/ttyUSB0

tool: D59: 


tool: D26: %e	%e	%e


tool: {"D46": [0x62,0xec,0x14,0x3b,0x76,0xb2,0xd3,0x3e]}

tool: D31: 0.0007326007326007326

tool: D41: 0.0014716888142523364

assistant: ```c
int main(int argc, char **argv) {
  volatile int fd;
  initSerial(&fd, 9600, "/dev/ttyUSB0");
  uint16_t out[6];
  out[0] = 0x0000;
  out[1] = 0x0005;
  out[2] = 0x1000 - 0x0010;
  out[3] = 0x0000;
  out[4] = 0x0080;
  out[5] = 0x1000 - 0x0010;
  uint8_t magic = 0xA3;
  write(fd, &magic, 1);
  int i = 0;
  for (i = 0; i < 6; i++) {
    write(fd, &(out[i]), 2);
  }
  i = 0;
  uint16_t nBytes = 0;
  myReadfull(fd, (void *)&nBytes, 2);
  while (nBytes > 0) {
    uint8_t returnValues[129 * 2];
    myReadfull(fd, (void *)returnValues, nBytes);
    int j = 0;
    for (j = 0; j < nBytes; j += 2) {
      double VDS = 0.0, IDS = 0.0, VGS = 0.0;
      VDS = (double)(j * out[1] >> 1) * 0.0007326007326007326;
      VGS = (double)(i * out[4]) * 0.00147168881425233645;
      IDS = (double)((returnValues[j + 1] << 8) | (returnValues[j])) * 4.69615854231238846623e-6;
      printf("%e\t%e\t%e\n", VGS, VDS, IDS);
    }
    printf("\n\n");
    myReadfull(fd, (void *)&nBytes, 2);
    i++;
  }
  return 0;
}
```