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

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  movabs $0xd20014000f000c,%rax
  mov    %rax,(%rsp)
  movabs $0x9c00360010007c,%rax
  mov    %rax,0x8(%rsp)
  movabs $0xf000700150086,%rax
  mov    %rax,0x10(%rsp)
  movabs $0xa100540061002e,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <print_timer@plt>
  xor    %eax,%eax
  call   <print_timer@plt>
  xor    %eax,%eax
  call   <print_timer@plt>
  mov    0x30000000,%eax
  test   %eax,%eax
  jne    L81
  nopl   0x0(%rax,%rax,1)
L68:
  mov    0x30000080,%eax
  mov    %eax,0x30000090
  mov    0x30000000,%eax
  test   %eax,%eax
  je     L68
L81:
  mov    %rsp,%r13
  lea    0x2(%rsp),%r14
  lea    0x20(%rsp),%rbp
  mov    $0xc,%esi
  mov    %r13,%rbx
  mov    %r14,%r15
  lea    D15(%rip),%r12
  jmp    L50
  nopw   0x0(%rax,%rax,1)
L52:
  movzwl (%r15),%esi
  add    $0x2,%r15
L50:
  mov    %r12,%rdi
  call   <my_printf@plt>
  cmp    %rbp,%r15
  jne    L52
  xor    %eax,%eax
  call   <print_timer@plt>
  mov    $0xc,%eax
  mov    $0xff,%esi
  xor    %edx,%edx
  jmp    L91
  nopw   0x0(%rax,%rax,1)
L35:
  movzwl (%r14),%eax
  add    $0x2,%r14
L91:
  cmp    %eax,%edx
  cmovb  %eax,%edx
  cmp    %eax,%esi
  cmova  %eax,%esi
  cmp    %rbp,%r14
  jne    L35
  mov    %edx,%ecx
  mov    $0xff00,%eax
  xor    %edx,%edx
  sub    %esi,%ecx
  div    %ecx
  mov    %r13,%rcx
  mov    $0xc,%edx
  jmp    L99
  xchg   %ax,%ax
L63:
  movzwl (%rcx),%edx
L99:
  sub    %esi,%edx
  add    $0x2,%rcx
  imul   %eax,%edx
  shr    $0x8,%edx
  mov    %dx,-0x2(%rcx)
  cmp    %rbp,%rcx
  jne    L63
  xor    %eax,%eax
  call   <print_timer@plt>
  nop
L86:
  movzwl (%rbx),%esi
  mov    %r12,%rdi
  add    $0x2,%rbx
  call   <my_printf@plt>
  cmp    %rbp,%rbx
  jne    L86
  xor    %eax,%eax
  call   <print_timer@plt>
  lea    D1(%rip),%rdi
  call   <puts@plt>
  xor    %eax,%eax
  call   <stop@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L79
  add    $0x38,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L79:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: tag: D15
datatype: string
name: read_data
arguments: tag: D1
datatype: string

tool: D15:  val=> 

tool: D1: MAIN FINISHED


assistant: ```c
int main(void) {
  unsigned short int data[16] = {12, 15, 20, 210, 124, 16, 54, 156, 134, 21, 7, 15, 46, 97, 84, 161};
  unsigned int i;
  print_timer();
  print_timer();
  print_timer();
  unsigned int max = 0;
  unsigned int min = 255;
  unsigned int beta;
  while (!(*(volatile unsigned int *)(0x30000000))) {
    int value = (*(volatile unsigned int *)(0x30000080));
    *(volatile unsigned int *)(0x30000090) = (value);
  }
  for (i = 0; i < 16; i++) {
    my_printf(" val=> ", data[i]);
  }
  print_timer();
  for (i = 0; i < 16; i++) {
    if (data[i] > max)
      max = data[i];
    if (data[i] < min)
      min = data[i];
  }
  beta = 255 << 8;
  beta = beta / (max - min);
  for (i = 0; i < 16; i++) {
    data[i] = (beta * (data[i] - min)) >> 8;
  }
  print_timer();
  for (i = 0; i < 16; i++) {
    my_printf(" val=> ", data[i]);
  }
  print_timer();
  puts("MAIN FINISHED\n");
  stop();
}
```