#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*/ printf(char *);
void usage() {
  printf("x6502: a simple 6502 emulator\n");
  printf("usage: x6502 [OPTION]... [FILE] \n");
  printf("options:\n");
  printf("\t-b addr\t\tthe base address at which code will be loaded\n");
  printf("\t-d file\t\ta binary file to back the block device\n");
  printf("\t\t\t(optional, defaults to zero)\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xef8(%rip),%rdi
call   1030 <printf@plt>
lea    0xf0e(%rip),%rdi
call   1030 <printf@plt>
lea    0xf0c(%rip),%rdi
call   1030 <printf@plt>
lea    0xf39(%rip),%rdi
call   1030 <printf@plt>
lea    0xf5f(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xefa(%rip),%rdi
call   1030 <puts@plt>
lea    0xf0f(%rip),%rdi
call   1030 <puts@plt>
lea    0xf0c(%rip),%rdi
call   1030 <puts@plt>
lea    0xf38(%rip),%rdi
call   1030 <puts@plt>
lea    0xf5d(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [31 x i8] c"x6502: a simple 6502 emulator\0A\00"
@.str.1 = [34 x i8] c"usage: x6502 [OPTION]... [FILE] \0A\00"
@.str.2 = [10 x i8] c"options:\0A\00"
@.str.3 = [57 x i8] c"\09-b addr\09\09the base address at which code will be loaded\0A\00"
@.str.4 = [50 x i8] c"\09-d file\09\09a binary file to back the block device\0A\00"
@.str.5 = [33 x i8] c"\09\09\09(optional, defaults to zero)\0A\00"
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.5, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [30 x i8] c"x6502: a simple 6502 emulator\00"
@str.6 = [33 x i8] c"usage: x6502 [OPTION]... [FILE] \00"
@str.7 = [9 x i8] c"options:\00"
@str.8 = [56 x i8] c"\09-b addr\09\09the base address at which code will be loaded\00"
@str.9 = [49 x i8] c"\09-d file\09\09a binary file to back the block device\00"
@str.10 = [32 x i8] c"\09\09\09(optional, defaults to zero)\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.6, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.7, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([56 x i8], [56 x i8]* @str.8, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.9, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.10, i64 0, i64 0))
ret void
}