user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x78,%rsp
  mov    %edi,%ebp
  mov    %rsi,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  lea    D81(%rip),%rdi
  call   <puts@plt>
  lea    D49(%rip),%rdi
  call   <puts@plt>
  cmp    $0x1,%ebp
  jle    L72
  mov    0x8(%rbx),%rdx
  lea    0x10(%rsp),%rbp
  lea    D78(%rip),%rsi
  mov    %rbp,%rdi
  call   <sprintf@plt>
  mov    %rbp,%rsi
  lea    D54(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D116(%rip),%rsi
  mov    %rbp,%rdi
  call   <fopen@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L7
L85:
  mov    0x8(%rbx),%rdx
  lea    0x40(%rsp),%rbx
  lea    D92(%rip),%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  mov    %rbx,%rsi
  lea    D19(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D79(%rip),%rsi
  mov    %rbx,%rdi
  call   <fopen@plt>
  mov    %rax,%r13
  test   %rax,%rax
  je     L32
L30:
  mov    $0x0,%ebx
  lea    0xc(%rsp),%rbp
  jmp    L21
L7:
  mov    %rbp,%rsi
  lea    D52(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L85
L32:
  mov    %rbx,%rsi
  lea    D77(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L30
L72:
  lea    D44(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D120(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L30
L89:
  movzbl 0xc(%rsp),%eax
  movzbl 0xf(%rsp),%edx
  mov    %dl,0xc(%rsp)
  mov    %al,0xf(%rsp)
  movzbl 0xd(%rsp),%eax
  movzbl 0xe(%rsp),%edx
  mov    %dl,0xd(%rsp)
  mov    %al,0xe(%rsp)
  mov    %r13,%rcx
  mov    $0x4,%edx
  mov    $0x1,%esi
  mov    %rbp,%rdi
  call   <fwrite@plt>
  add    $0x1,%rbx
L21:
  mov    %r12,%rcx
  mov    $0x4,%edx
  mov    $0x1,%esi
  mov    %rbp,%rdi
  call   <fread@plt>
  test   %rax,%rax
  jne    L89
  mov    %rbx,%rsi
  lea    D53(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdi
  call   <fclose@plt>
  mov    %r13,%rdi
  call   <fclose@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  mov    0x68(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L24
  mov    $0x0,%eax
  add    $0x78,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L24:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D81
type: string
name: parse_data
arguments: tag: D49
type: string
name: parse_data
arguments: tag: D78
type: string
name: parse_data
arguments: tag: D54
type: string
name: parse_data
arguments: tag: D116
type: string
name: parse_data
arguments: tag: D92
type: string
name: parse_data
arguments: tag: D19
type: string
name: parse_data
arguments: tag: D79
type: string
name: parse_data
arguments: tag: D52
type: string
name: parse_data
arguments: tag: D77
type: string
name: parse_data
arguments: tag: D44
type: string
name: parse_data
arguments: tag: D120
type: string
name: parse_data
arguments: tag: D53
type: string

tool: D81: 

Swap a Big-Endian Data file to Little Endian

tool: D49:           or vise-versa.  (32 bit data only)

tool: D78: %s

tool: D54: 
Reading data from "%s".


tool: D116: r+b

tool: D92: %s_swapped

tool: D19: Writing data to "%s".



tool: D79: w+b

tool: D52: 
Can't open "%s", exiting.


tool: D77: 
Can't open %s, exiting.


tool: D44: 

Please enter a filename for the input data file

tool: D120:  after "readdata".

tool: D53: Converted %ld points.



assistant: ```c
int main(int argc, char *argv[]) {
  unsigned char buffer[4];
  int tmp;
  long ct = 0;
  char innm[40], outnm[40];
  FILE *infile, *outfile;
  printf("\n\nSwap a Big-Endian Data file to Little Endian\n");
  printf("          or vise-versa.  (32 bit data only)\n");
  if (argc > 1) {
    sprintf(innm, "%s", argv[1]);
    printf("\nReading data from \"%s\".\n", innm);
    if (NULL == (infile = fopen(innm, "r+b"))) {
      printf("\nCan't open \"%s\", exiting.\n", innm);
      exit(1);
    }
    sprintf(outnm, "%s_swapped", argv[1]);
    printf("Writing data to \"%s\".\n\n", outnm);
    if (NULL == (outfile = fopen(outnm, "w+b"))) {
      printf("\nCan't open %s, exiting.\n", outnm);
      exit(1);
    }
  } else {
    printf("\n\nPlease enter a filename for the input data file");
    printf(" after \"readdata\".\n");
    exit(1);
  }
  ct = 0;
  while (fread(buffer, sizeof(unsigned char), 4, infile)) {
    tmp = buffer[0];
    buffer[0] = buffer[3];
    buffer[3] = tmp;
    tmp = buffer[1];
    buffer[1] = buffer[2];
    buffer[2] = tmp;
    fwrite(buffer, sizeof(unsigned char), 4, outfile);
    ct++;
  }
  printf("Converted %ld points.\n\n", ct);
  fclose(infile);
  fclose(outfile);
  exit(0);
}
```