Binary …. yani ikilik düzeyde çarpma yapan ve bunu size adım adım gösteren C programı.
Doğu Akdeniz Üniversitesi Bilgisayar Mühendisliği 1. Sınıf ödevlerinden birisiydi.
#include <stdio.h>
#include <dos.h>
#include <conio.h>
#include <iostream.h>
#define size2 8
void first(void);
void second(void);
void result(void);
void show(void);
void add(void);
void shift(void);
void dec2bin (int ,int []);
void unsign(void);
void mm2(void);
int t,re,i=0,iz=0;
int secim;
int buffer[size2];
int deger=0,diger=0;
long res=0;
int multiplicand,multiplier,m[size2],q[size2];
int carry;
int m2[size2];
void main()
{
do
{
clrscr();
printf(”
Please Enter Which Technic you will use … “);
printf(”
=====> 1 for Unsigned <===== “);
printf(”
=====> 2 for Boot’s <===== “);
printf(”
=====> “);
scanf(“%d”,&secim);
}while((secim<0)||(secim>2));
if(secim==1)
first();
else
second();
}
void first()
{
do
{
clrscr();
printf(“Enter a Integer numer : “);
scanf(“%d”,&multiplicand);
printf(”
Enter other Integer number : “);
scanf(“%d”,&multiplier);
}while((multiplicand<0)||(multiplier<0));
dec2bin (multiplicand,q);
dec2bin (multiplier,m);
unsign();
getch();
}
void dec2bin (int dec,int arr[])
{
int input = dec;
int count = 0;
do
{
i = input%2;
arr[count] = i;
input = input/2;
count++;
}while (input > 0);
for(i=count;i<size2;i++)
{
arr[i]=0;
}
count=size2;
printf (“Binary representation is: “);
do
{
printf (“%d”, arr[count – 1]);
count–;
} while (count > 0);
printf (”
“);
}
void unsign()
{
t=size2;
carry=0;
for(i=0;i<size2;i++)
buffer[i]=0;
show();
do
{
if(q[0]==0)
{
shift();
show();
t–;
iz++;
printf(” %d .part
“,iz);
}
else if(q[0]==1)
{
add();
shift();
show();
t–;
iz++;
printf(” %d .part
“,iz);
}
}while(t>0);
result();
}
void result(void)
{
int counter=0;
diger=0;
for(i=0;i<size2;i++)
{
deger=q[i];
diger=diger*2;
if(counter==0)
diger=1;
printf(”
%d %d”,deger,diger);
res+=deger*diger;
++counter;
}
printf(”
“);
for(i=0;i<size2;i++)
{
deger=buffer[i];
diger=diger*2;
printf(”
%d %d”,deger,diger);
res+=deger*diger;
++counter;
}
printf(”
Your result is %d”,res);
}
void show(void)
{
printf(”
%d “,carry);
for(i=size2-1;i>=0;i–)
printf(“%d”,buffer[i]);
printf(” “);
for(i=size2-1;i>=0;i–)
printf(“%d”,q[i]);
printf(” “);
for(i=size2-1;i>=0;i–)
printf(“%d”,m[i]);
printf(” “);
}
void shift(void)
{
for(i=0;i<size2-1;i++)
q[i]=q[i+1];
q[size2-1]=buffer[0];
for(i=0;i<size2-1;i++)
buffer[i]=buffer[i+1];
buffer[size2-1]=carry;
}
void add(void)
{
for(i=0;i<size2-1;i++)
{
if((buffer[i]==0)&&(m[i]==0)&&(carry==0))
{
buffer[i]=0;
carry=0;
}
else if((buffer[i]==0)&&(m[i]==0)&&(carry==1))
{
buffer[i]=1;
carry=0;
}
else if((buffer[i]==0)&&(m[i]==1)&&(carry==0))
{
buffer[i]=1;
carry=0;
}
else if((buffer[i]==1)&&(m[i]==0)&&(carry==0))
{
buffer[i]=1;
carry=0;
}
else if((buffer[i]==1)&&(m[i]==1)&&(carry==1))
{
buffer[i]=1;
carry=1;
}
else if((buffer[i]==1)&&(m[i]==1)&&(carry==0))
{
buffer[i]=0;
carry=1;
}
else if((buffer[i]==1)&&(m[i]==0)&&(carry==1))
{
buffer[i]=0;
carry=1;
}
else if((buffer[i]==0)&&(m[i]==1)&&(carry==1))
{
buffer[i]=0;
carry=1;
}
}
show();
printf(” Added..”);
}
void second()
{
clrscr();
printf(“Enter a Integer numer : “);
scanf(“%d”,&multiplicand);
printf(”
Enter other Integer number : “);
scanf(“%d”,&multiplier);
dec2bin (multiplicand,q);
dec2bin (multiplier,m);
mm2();
}
void mm2()
{
for(i=size2-1;i>=0;i–)
{
deger=m[i];
if(deger==1)
m2[i]=0;
else
m2[i]=1;
}
for(i=size2-1;i>=0;i–)
{
deger=m2[i];
if((deger==1)&&(carry==0))
{
m2[i]=0;
carry=1;
}
else if((m2[i]==0)&&(carry==1))
{
m2[i]=1;
carry=0;
}
else if((m2[i]==0)&&(carry==0))
{
m2[i]=0;
carry=0;
}
else if((m2[i]==1)&&(carry==1))
m2[i]=0;
}
for(i=size2-1;i>=0;i–)
printf(“%d”,m[i]);
printf(”
“);
for(i=size2-1;i>=0;i–)
printf(“%d”,m2[i]);
getch();
}
belgesi-411
