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

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    D91(%rip),%rdi
  call   <printf@plt>
  lea    0x8(%rsp),%rsi
  lea    D108(%rip),%rbx
  mov    %rbx,%rdi
  call   <scanf@plt>
  lea    D89(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x10(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  lea    D49(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0xc(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  lea    D47(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x14(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  mov    0x14(%rsp),%r8d
  mov    0xc(%rsp),%ecx
  mov    0x10(%rsp),%edx
  mov    0x8(%rsp),%esi
  lea    D15(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D41(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x10(%rsp),%edx
  mov    %edx,%ebx
  sub    0x14(%rsp),%ebx
  mov    0x8(%rsp),%eax
  mov    %eax,%ebp
  sub    0xc(%rsp),%ebp
  pxor   %xmm0,%xmm0
  cvtsi2ss %ebx,%xmm0
  pxor   %xmm1,%xmm1
  cvtsi2ss %ebp,%xmm1
  divss  %xmm1,%xmm0
  pxor   %xmm1,%xmm1
  cvtsi2ss %edx,%xmm1
  pxor   %xmm2,%xmm2
  cvtsi2ss %eax,%xmm2
  mulss  %xmm0,%xmm2
  subss  %xmm2,%xmm1
  cvtss2sd %xmm1,%xmm1
  movq   %xmm1,%r14
  pxor   %xmm3,%xmm3
  cvtss2sd %xmm0,%xmm3
  movq   %xmm3,%r15
  movapd %xmm3,%xmm0
  lea    D31(%rip),%rdi
  mov    $0x2,%eax
  call   <printf@plt>
  movq   %r14,%xmm0
  mov    %ebp,%edx
  mov    %ebx,%esi
  lea    D86(%rip),%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  movq   %r15,%xmm0
  mov    %ebp,%edx
  mov    %ebx,%esi
  lea    D76(%rip),%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  movq   %r14,%xmm1
  mov    0x8(%rsp),%edx
  movq   %r15,%xmm0
  mov    0x10(%rsp),%esi
  lea    D14(%rip),%rdi
  mov    $0x2,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  call   <getch@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  mov    $0x0,%eax
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r14
  pop    %r15
  ret
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D91
datatype: string
name: extract_symbolic_data
arguments: data_tag: D108
datatype: string
name: extract_symbolic_data
arguments: data_tag: D89
datatype: string
name: extract_symbolic_data
arguments: data_tag: D49
datatype: string
name: extract_symbolic_data
arguments: data_tag: D47
datatype: string
name: extract_symbolic_data
arguments: data_tag: D15
datatype: string
name: extract_symbolic_data
arguments: data_tag: D41
datatype: string
name: extract_symbolic_data
arguments: data_tag: D31
datatype: string
name: extract_symbolic_data
arguments: data_tag: D86
datatype: string
name: extract_symbolic_data
arguments: data_tag: D76
datatype: string
name: extract_symbolic_data
arguments: data_tag: D14
datatype: string

tool: D91: x1 = 

tool: D108: %d

tool: D89: y1 = 

tool: D49: x2 = 

tool: D47: y2 = 

tool: D15: Calculating Equation of (%d,%d) (%d,%d) ...

tool: D41: 
-----------Answer-----------

tool: D31: 
y = (%.3f)x + (%.3f)

tool: D86: 
y = %d/%d x + %.3f

tool: D76: 
Slope = %d/%d or %.3f

tool: D14: 
b = %d-(%.2f*%d) = %.3f

assistant: ```c
main() {
  int x1, x2, y1, y2, a, d;
  float slope = 0.0f;
  float b = 0.0f;
  printf("x1 = ");
  scanf("%d", &x1);
  printf("y1 = ");
  scanf("%d", &y1);
  printf("x2 = ");
  scanf("%d", &x2);
  printf("y2 = ");
  scanf("%d", &y2);
  printf("Calculating Equation of (%d,%d) (%d,%d) ...", x1, y1, x2, y2);
  printf("\n-----------Answer-----------");
  a = (y1 - y2);
  d = (x1 - x2);
  slope = (float)a / (float)d;
  b = y1 - (slope * x1);
  printf("\ny = (%.3f)x + (%.3f)", slope, b);
  printf("\ny = %d/%d x + %.3f", a, d, b);
  printf("\nSlope = %d/%d or %.3f", a, d, slope);
  printf("\nb = %d-(%.2f*%d) = %.3f", y1, slope, x1, b);
  getch();
}
```