Two Pass Assembler

#include<stdio.h>

#include<conio.h>

#include<string.h>

#define lines_in_program 9

void print(char *p,int loc,int len,char ra)

{

            printf("%s\t%d\t%d\t%c\n",p,loc,len,ra);

}

void main()

{

            char *p[9][4] = {

                                                {"PRG1","START","",""},{"","USING","*","15"},

                                                {"","L","1","FIVE"}, {"","A","1","FOUR"},

                                                {"","ST","1","TEMP"}, {"FOUR","DC","F'4'",""},

                                                {"FIVE","DC","F'5'",""}, {"TEMP","DS","1F",""},

                                                {"","END","",""}

                                     };

            int i,j=0,location_counter=0;

            clrscr();

            for (i=0;i< 9;i++)

            {

                        for(j=0;j< 4;j++)

                        printf("%s\t",p[i][j]);

                        printf("\n");

            }

            printf("\n\n\n\n Symbol ");

            printf("Table:\nSYMBOL\tVALUE\tLENGTH\tRelocatable/Absolute\n");

            printf("---------------------------------------------\n");

           

            for(i=0;i< 9;i++)

            {

                        if(strcmp(p[i][1],"START")==0)

                        print(p[i][0],location_counter,1,'R');

                        else if(strcmp(p[i][0],"")!=0)

                        {

                                    print(p[i][0],location_counter,4,'R');

                                    location_counter=4+location_counter;

                        }

                        else if(strcmp(p[i][1],"USING")==0)

                        { }

                        else{

                                    location_counter=4+location_counter;

                        }

            }

            getch();

}

Output: