TITLE UPPER TO LOWER CASE
.MODEL SMALL
.STACK 64
.DATA
MAXCHR DB 20
ACTCHR DB ?
ACTSTR DB 20 DUP(?)
RESULT DB 20 DUP('$')
.CODE
MAIN PROC FAR
MOV AX,@DATA
MOV DS,AX
MOV DX,OFFSET MAXCHR
MOV AH,0AH
INT 21H
LEA SI,ACTSTR
LEA DI,RESULT
MOV CX,0000H
MOV BX,0000H
LEA BX,ACTCHR
MOV CX,[BX]
L2:
MOV AL,[SI]
CMP AL,41H
JB L1
CMP AL,5AH
JA L1
ADD AL,20H
L1:
MOV [DI],AL
INC SI
INC DI
LOOP L2
MOV DL,0AH
MOV AH,02H
INT 21H
LEA DX,RESULT
MOV AH,09H
INT 21H
MOV...
Monday, August 7, 2017
Monday, July 31, 2017
Tic tac toe game in C
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include <windows.h>
int board[10] = {2,2,2,2,2,2,2,2,2,2};
int turn = 1,flag = 0;
int player,comp;
void menu();
void go(int n);
void start_game();
void check_draw();
void draw_board();
void player_first();
void put_X_O(char ch,int pos);
COORD coord={0,0}; // this is global variable
...
Simple quiz in C
#include<stdio.h>
#include<conio.h>
#include <windows.h>
#include<ctype.h>
#include<stdlib.h>
#include<time.h>
#include<dos.h>
void displayscore()
{
char name[20];
float s;
FILE *f;
system("cls");
f=fopen("score.txt","r");
fscanf(f,"%s%f",&name,&s);
printf("\n\n\t\t ");
printf("\n\n\t\t %s has secured the Highest Score %.2f",name,s);
printf("\n\n\t\t...
Graphics in C
#include <windows.h>
#include <stdio.h>
void SetColorAndBackground(int ForgC, int BackC);
void main()
{
int f,b;
system("cls");
printf("Enter fore and background color code : ");
scanf("%d",&f);
SetColorAndBackground(f,16); //color value range 0 up-to 256
printf("what is...
Check if a string is palindrome or not in C ?
#include<stdio.h>
#include<string.h>
void main()
{
char word[50];
int i,j,l,c=0;
printf("Enter a word : ");
gets(word);
l=strlen(word);
for(i=0,j=l-1;i<l/2;i++,j--)
{
if(word[i]-word[j]>0)
{
c=1;
...
Check if 3rd digit of a no. is prime or not in C ?
#include<stdio.h>
int digitcount(int x)
{
int r,c=0,i=0,y=x;
while(x!=0)
{
r=x%10;
x=x/10;
c++;
}
while(y!=0)
{
r=y%10;
y=y/10;
i++;
if(i==c-2)
...
Application of struct in C
#include<stdio.h>
#include<string.h>
struct student
{
char name[20];
int roll;
};
void main()
{
struct student s[10],t;
int i,n,j;
printf("Enter no. of students : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("Enter %dth student's name and roll : ",i+1);
scanf("%s%d",s[i].name,&s[i].roll);
}
for(i=0;i<=n-2;i++)
...
Check if a no. is prime or not in C ?
#include<stdio.h>
int testprime(int ,int);
void main()
{
int n,prime;
printf("Enter a positive number : ");
scanf("%d",&n);
prime=testprime(n,n/2);
if(prime==1)
printf("%d is prime number.",n);
else
printf("%d is not a prime number.",n);
getch();
}
int testprime(int num, int i)
{
...
Find HCF in C
#include<stdio.h>
int hcf(int a,int b,int c)
{
if(a%c==0 && b%c==0)
return c;
hcf(a,b,c-1);
}
void main()
{
int h,x,y;
printf("Enter two numbers x and y : ");
scanf("%d%d",&x,&y);
if(x>y)
{
h=hcf(x,y,y);
}
else
{
h=hcf(y,x,x);
...
Find fibonacci series in C
#include<stdio.h>
void fibonacci(int);
void main()
{
int n,first=0,second=1;
printf("Enter the number of fibonacci series to be printed : ");
scanf("%d",&n);
printf("%d\t%d\t",first,second);
fibonacci(n);
getch();
}
void fibonacci(int n)
{
static int first=0,second=1,sum=0;
if(n-2>0)
{
...
Find no. of vowels in a string in C
#include<stdio.h>
void strcount(char []);
void main()
{
char str[50];
char c;
while(1)
{
printf("enter string\n");
//gets(str);
scanf("%s",str);
strcount(str);
printf("want to run again? press y/n \n");
scanf("%s",&c);
if(c == 'n' || c == 'N')
break;
}
}
void strcount(char str[50])
{
int...
Find triangular no. in C
#include<stdio.h>
void main()
{
int n1,n2,i,t;
printf("Enter two numbers : ");
scanf("%d%d",&n1,&n2);
for(i=1;i<=n2;i++)
{
t = i*(i+1)/2;
if(t>=n1 && t<=n2)
{
printf("%d ",t);
}
}
...
Find highest paid employee in C
#include<stdio.h>
struct emp
{
char name[50];
int salary;
};
void main()
{
int n,i,sum=0,avg;
struct emp e[20],ls,hs;
printf("Enter the number of employee : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("Enter the name and salary of employees : ");
scanf("%s%d",e[i].name,&e[i].salary);
...
Operations on complex numbers in C
#include<stdio.h>
struct cmplx
{
float real;
float img;
};
struct cmplx add(struct cmplx x, struct cmplx y)
{
struct cmplx z;
z.real = x.real + y.real;
z.img = x.img + y.img;
return(z);
}
struct cmplx sub(struct cmplx x, struct cmplx y)
{
struct cmplx z;
z.real = x.real - y.real;
z.img = x.img - y.img;
...
Arranging numbers in ascending and descending order in C
#include<stdio.h>
void main()
{
int x[5],i,j,temp;
for(i=0;i<=4;i++)
{
printf("Enter x[%d]th number : ",i);
scanf("%d",&x[i]);
}
for(i=0;i<=5-2;i++)
{
for(j=i+1;j<=5-1;j++)
{
if(x[i]>x[j])
...
Find largest and smallest no. in C
#include<stdio.h>
void main()
{
int x[10],i,j,temp;
for(i=0;i<=9;i++)
{
printf("Enter %dth number : ",i+1);
scanf("%d",&x[i]);
}
for(i=0;i<=8;i++)
{
for(j=i+1;j<=9;j++)
{
if(x[i]<x[j])
...
Display string after deleting vowels in it in C
#include<stdio.h>
void main()
{
char str[50],i;
printf("Enter a string : ");
gets(str);
printf("\nAfter deleting vowels :\t");
for(i=0;str[i]!='\0';i++)
{
if(str[i]=='a'||str[i]=='A'||str[i]=='e'||str[i]=='E'||str[i]=='i'||str[i]=='I'||str[i]=='o'||str[i]=='O'||str[i]=='u'||str[i]=='U')
{
...
Count no. of words in a sentence in C
#include<stdio.h>
void main()
{
char str[50],i,wordcount=0;
printf("Enter a line of text : ");
gets(str);
for(i=0;str[i]!='\0';i++)
{
if(str[i]==32)
{
wordcount++;
}
if(str[i]==' ' && str[i-1]==' ')
...
Sorting names in C
#include<stdio.h>
//#include<string.h>
void copystring(char txt1[], char txt2[])
{
int k;
for(k=0;txt2[k]!='\0';k++)
{
txt1[k]=txt2[k];
}
txt1[k]='\0';
}
int comparestring(char str1[], char str2[])
{
int p,difference;
for(p=0;str1[p]!='\0' || str2[p]!='\0';p++)
{
difference=str1[p]-str2[p];
...
Copying string 2 to string 1
#include<stdio.h>
void copystr(char [],char []);
void main()
{
char str1[50],str2[50];
printf("Enter 1st string,str1 : ");
gets(str1);
printf("\nEnter 2nd string,str2 : ");
gets(str2);
copystr(str1,str2);
printf("\n\nAfter copying str2 in str1\n\nstr1 is %s ",str1);
getch();
}
void copystr(char txt1[], char txt2[])
{
...
Concatenation of two string in C
#include<stdio.h>
void catstr(char [],char []);
void main()
{
char str1[50],str2[50];
printf("Enter 1st string (str1) :");
gets(str1);
printf("\nEnter 2nd string (str2) :");
gets(str2);
catstr(str1,str2);
printf("\n\nAfter concatenating(joining) these strings\n\nFinal string is ");
puts(str1);
getch();
}
void catstr(char...
Code in C to multiply two matrix
#include<stdio.h>
void matmultiply(int m[3][3], int n[3][3]);
void read(int x[3][3]);
//void read2(int y[3][3]);
void main()
{
int a[3][3],b[3][3],l,w;
printf("\nFor matrix a :-\n");
read(a);
printf("\nFor matrix b :-\n");
read(b);
printf("\nMatrix a :\n");
for(l=0;l<3;l++)
{
for(w=0;w<3;w++)
...
