#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ _IONBF;
int /*<<< orphan*/ clearscreen();
int /*<<< orphan*/ exit(int);
int open_adc();
int /*<<< orphan*/ printf(char *, double);
double read_adc_voltage(int, int /*<<< orphan*/);
int /*<<< orphan*/ setvbuf(int /*<<< orphan*/, int /*<<< orphan*/ *,
                           int /*<<< orphan*/, int /*<<< orphan*/);
int /*<<< orphan*/ stdout;
int /*<<< orphan*/ usleep(int);
int main(int argc, char **argv) {
  setvbuf(stdout, NULL, _IONBF, 0);
  if (open_adc() != 1) {
    exit(1);
  }
  while (1) {
    clearscreen();
    printf("Pin 1: %G \n", read_adc_voltage(1, 0));
    printf("Pin 2: %G \n", read_adc_voltage(2, 0));
    usleep(200000);
  }
  (void)argc;
  (void)argv;
  return (0);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    0x2e4b(%rip),%rax
mov    (%rax),%edi
mov    0x2e52(%rip),%rax
mov    (%rax),%edx
xor    %eax,%eax
mov    %eax,%esi
xor    %ecx,%ecx
call   1060 <setvbuf@plt>
mov    $0x0,%al
call   1080 <open_adc@plt>
cmp    $0x1,%eax
je     11bd <main+0x4d>
mov    $0x1,%edi
call   1070 <exit@plt>
jmp    11c2 <main+0x52>
mov    $0x0,%al
call   1040 <clearscreen@plt>
mov    $0x1,%edi
xor    %esi,%esi
call   1030 <read_adc_voltage@plt>
lea    0xe24(%rip),%rdi
call   1050 <printf@plt>
mov    $0x2,%edi
xor    %esi,%esi
call   1030 <read_adc_voltage@plt>
lea    0xe18(%rip),%rdi
call   1050 <printf@plt>
mov    $0x30d40,%edi
call   1090 <usleep@plt>
jmp    11c2 <main+0x52>

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
mov    0x2e5d(%rip),%rax
mov    (%rax),%edi
mov    0x2e64(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
xor    %ecx,%ecx
call   1060 <setvbuf@plt>
xor    %eax,%eax
call   1080 <open_adc@plt>
cmp    $0x1,%eax
jne    11eb <main+0x7b>
lea    0xe5e(%rip),%r14
lea    0xe63(%rip),%rbx
nopl   0x0(%rax)
xor    %eax,%eax
call   1040 <clearscreen@plt>
mov    $0x1,%edi
xor    %esi,%esi
call   1030 <read_adc_voltage@plt>
mov    %r14,%rdi
call   1050 <printf@plt>
mov    $0x2,%edi
xor    %esi,%esi
call   1030 <read_adc_voltage@plt>
mov    %rbx,%rdi
call   1050 <printf@plt>
mov    $0x30d40,%edi
call   1090 <usleep@plt>
jmp    11b0 <main+0x40>
mov    $0x1,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
@stdout = global i32 0
@_IONBF = global i32 0
@.str = [12 x i8] c"Pin 1: %G \0A\00"
@.str.1 = [12 x i8] c"Pin 2: %G \0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* @stdout
%7 = load i32, i32* @_IONBF
%8 = call i32 @setvbuf(i32 %6, i32* null, i32 %7, i32 0)
%9 = call i32 (...) @open_adc()
%10 = icmp ne i32 %9, 1
br i1 %10, label %11, label %13
11: ; preds = %2
%12 = call i32 @exit(i32 1)
unreachable
13: ; preds = %2
br label %14
14: ; preds = %13, %14
%15 = call i32 (...) @clearscreen()
%16 = call double @read_adc_voltage(i32 1, i32 0)
%17 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), double %16)
%18 = call double @read_adc_voltage(i32 2, i32 0)
%19 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), double %18)
%20 = call i32 @usleep(i32 200000)
br label %14
}

LLVM IR (-O2):
@stdout = global i32 0
@_IONBF = global i32 0
@.str = [12 x i8] c"Pin 1: %G \0A\00"
@.str.1 = [12 x i8] c"Pin 2: %G \0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = load i32, i32* @stdout
%4 = load i32, i32* @_IONBF
%5 = tail call i32 @setvbuf(i32 %3, i32* null, i32 %4, i32 0)
%6 = tail call i32 (...) @open_adc()
%7 = icmp eq i32 %6, 1
br i1 %7, label %10, label %8
8: ; preds = %2
%9 = tail call i32 @exit(i32 1)
unreachable
10: ; preds = %2, %10
%11 = tail call i32 (...) @clearscreen()
%12 = tail call double @read_adc_voltage(i32 1, i32 0)
%13 = tail call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), double %12)
%14 = tail call double @read_adc_voltage(i32 2, i32 0)
%15 = tail call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), double %14)
%16 = tail call i32 @usleep(i32 200000)
br label %10
}