Two Pass Assembler

#include< stdio.h>
#include< string.h>
#include< conio.h>


void main()
{
char *code[9][4]={
{"PRG1","START","",""},
{"","USING","*","15"},
{"","L","",""},
{"","A","",""},
{"","ST","",""},
{"FOUR","DC","F",""},
{"FIVE","DC","F",""},
{"TEMP","DS","1F",""},
{"","END","",""}
};
char av[2],avail[15]={'N','N','N','N','N','N','N','N','N','N','N','N','N','N','N'};
int i,j,k,count[3],lc[9]={0,0,0,0,0,0,0,0,0},loc=0;
clrscr();
printf("----------------------------------------------------\n");
printf("LABEL\t\tOPCODE\n");
printf("----------------------------------------------------\n\n");
for(i=0;i< =8;i++)
{
for(j=0;j< =3;j++)
{
printf("%s\t\t",code[i][j]);
}
j=0;
printf("\n");
}
getch();
printf("-----------------------------------------------------");
printf("\nVALUES FOR LC : \n\n");
for(j=0;j< =8;j++)
{
if((strcmp(code[j][1],"START")!=0)&&(strcmp(code[j][1],"USING")!=0)&&(strcmp(code[j][1],"L")!=0))
lc[j]=lc[j-1]+4;
printf("%d\t",lc[j]);
}
printf("\n\nSYMBOL TABLE:\n----------------------------------------------------\n");
printf("SYMBOL\t\tVALUE\t\tLENGTH\t\tR/A");
printf("\n----------------------------------------------------\n");

for(i=0;i< 9;i++)
{
if(strcmp(code[i][1],"START")==0)
{
printf("%s\t\t%d\t\t%d\t\t%c\n",code[i][0],loc,4,'R');
}
else if(strcmp(code[i][0],"")!=0)
{
printf("%s\t\t%d\t\t%d\t\t%c\n",code[i][0],loc,4,'R');
loc=4+loc;
}
else if(strcmp(code[i][1],"USING")==0){}
else
{loc=4+loc;}
}
printf("----------------------------------------------------");

printf("\n\nBASE TABLE:\n-------------------------------------------------------\n");
printf("REG NO\t\tAVAILIBILITY\tCONTENTS OF BASE TABLE");
printf("\n-------------------------------------------------------\n");
for(j=0;j< =8;j++)
{
if(strcmp(code[j][1],"USING")!=0)
{}
else
{
strcpy(av,code[j][3]);
}
}
count[0]=(int)av[0]-48;
count[1]=(int)av[1]-48;
count[2]=count[0]*10+count[1];
avail[count[2]-1]='Y';

for(k=0;k< 16;k++)
{
printf(" %d\t\t %c\n",k,avail[k-1]);
}

printf("-------------------------------------------------------\n");
printf("Continue..??");
getchar();
printf("PASS2 TABLE:\n\n");
printf("LABEL\t\tOP1\t\tLC\t\t");
printf("\n----------------------------------------------------\n");
loc=0;
for(i=0;i< =8;i++)
{
for(j=0;j< =3;j++)
{
printf("%s\t\t",code[i][j]);
}
j=0;
printf("\n");
}
printf("-----------------------------------------------------");

getch();

}
/*
----------------------------------------------------
LABEL OPCODE
----------------------------------------------------

PRG1 START
USING * 15
L
A
ST
FOUR DC F
FIVE DC F
TEMP DS 1F
END



-----------------------------------------------------
VALUES FOR LC :

0 0 0 4 8 12 16 20 24

SYMBOL TABLE:
----------------------------------------------------
SYMBOL VALUE LENGTH R/A
----------------------------------------------------

PRG1 0 4 R
FOUR 12 4 R
FIVE 16 4 R
TEMP 20 4 R


----------------------------------------------------

BASE TABLE:
-------------------------------------------------------
REG NO AVAILIBILITY CONTENTS OF BASE TABLE
-------------------------------------------------------
0 -----------------------------------
1 N
2 N
3 N
4 N
5 N
6 N
7 N
8 N
9 N
10 N
11 N
12 N
13 N
14 N
15 Y

-------------------------------------------------------
Continue..??
PASS2 TABLE:

LABEL OP1 LC
----------------------------------------------------
PRG1 START
USING * 15
L
A
ST
FOUR DC F
FIVE DC F
TEMP DS 1F
END
-----------------------------------------------------


*/