Turn in code, screen prints of successful execution. (MUST HAVE)

and write up the uses of Byte programming.

This is the code:

Program to show byte order.

Run the code

In class assignme

nt

The C++ language Bit

-

Wise

operations give

you the ability to work with endian.

//

BYTE ORDER PROGRAM

.cpp : Defines the entry point for the console application.

#include

"stdafx.h"

// PC Visual Studios only. Other comment out

/* $begin show

-

bytes */

#include

/* $end show

-

bytes */

#include

#include

/* $begin show

-

bytes */

typedef

unsigned

char

*byte_pointer;

void

show_bytes(byte_pointer start,

int

len) {

int

i;

for

(i = 0; i < len; i++)

printf(

" %.2x"

, start[i]);

//line:data:show_bytes_printf

printf(

"

\

n"

);

}

void

show_int(

int

x) {

show_bytes((byte_pointer) &x,

sizeof

(

int

));

//line:data:show_bytes_amp1

}

void

show_float(

float

x) {

show_bytes((byte_pointer) &x,

sizeof

(

float

));

//line:data:show_by

tes_amp2

}

void

show_pointer(

void

*x) {

show_bytes((byte_pointer) &x,

sizeof

(

void

*));

//line:data:show_bytes_amp3

}

/* $end show

-

bytes */

/* $begin test

-

show

-

bytes */

void

test_show_bytes(

int

val) {

int

ival = val;

float

fval = (

float

) ival;

int

*pval = &ival;

show_int(ival);

show_float(fval);

show_pointer(pval);

}

/* $end test

-

show

-

bytes */

void

simple_show_a() {

/* $begin simple

-

show

-

a */

int

val = 0x87654321;

byte_pointer valp = (byte_pointer) &val;

show_bytes(valp, 1);

/* A. */

show_bytes(valp, 2);

/* B. */

show_bytes(valp, 3);

/* C. */

/* $end simple

-

show

-

a */

}

void

simple_show_b() {

/* $begin simple

-

show

-

b */

int

val = 0x12345678;

byte_pointer valp = (byte_pointer) &val;

show_bytes(valp, 1);

/* A. */

show_bytes(valp, 2);

/* B. */

show_bytes(valp, 3);

/* C. */

/* $end simple

-

show

-

b */

}

void

float_eg() {

int

x = 3490593;

float

f = (

float

) x;

printf(

"

\

n For x = %d

\

n

\

n"

, x);

show_int(x);

show_float(f);

x = 3510593;

f = (

float

) x;

printf(

"

\

n

For x = %d

\

n

\

n"

, x);

show_int(x);

show_float(f);

}

void

string_ueg() {

/* $begin show

-

ustring */

const

char

*s =

"ABCDEF"

;

show_bytes((byte_pointer) s, strlen(s));

/* $end show

-

ustring */

}

void

string_leg() {

/* $begin show

-

lstring */

const

char

*s =

"abcdef"

;

show_bytes((byte_pointer) s, strlen(s));

/* $end show

-

lstring */

}

void

show_twocomp()

{

/* $begin show

-

twocomp */

short

x = 12345;

short

mx =

-

x;

show_bytes((byte_pointer) &x,

sizeof

(

short

));

show_bytes((byte_pointer) &

mx,

sizeof

(

short

));

/* $end show

-

twocomp */

}

int

main(

int

argc,

char

*argv[])

{

int

val = 12345;

if

(argc > 1) {

if

(argc > 1) {

val = strtol(argv[1], NULL, 0);

}

printf(

"

\

ncalling test_show_bytes

\

n

\

n"

);

test_show_bytes(val);

}

else

{

printf(

"

\

ncalling show two comp function

\

n

\

n"

);

show_twocomp();

printf(

"

\

nCalling simple show a function

\

n

\

n"

);

simple_show_a();

printf(

"

\

nCalling simple show b function

\

n

\

n"

);

simple_show_b();

printf(

"

\

nCalling float eg function

\

n

\

n"

);

float_eg();

printf(

"

\

nCalling string ueg function

\

n

\

n"

);

string_ueg();

printf(

"

\

nCalling string leg function

\

n

\

n"

);

string_leg();

}

system(

"pause"

);

// For PC Visual Studios Only

return

0;

}