Macro definition program make a table
//copy below program and save file_name.c
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
struct MNT
{
char mname[20];
int mdtp;
}mnt[5];
struct MDT
{
char opcode[15],rest[35];
}mdt[30];
char arglist[15][15],apt[10][15];
int mdtp=0,mntp=0,arglistp=0;
char FName[20], TName[20];
char Buffer[80], temp[40],tok1[40];
int pp,kpp;// no. of positional and keyword parameters
FILE *fp1, *fp2;
int SearchMNT(char *s)
{ int i;
for(i=0; i<mntp; i++)
if(strcmpi(s,mnt[i].mname)==0)
return(i);
return(-1);
}
int SearchPNT(char *s)
{ int i;
for(i=0;i<arglistp;i++)
if(strcmpi(arglist[i],s)==0)
return(i);
return(-1);
}
void Print_MNT()
{ int i;
printf("\n\n----------MACRO NAME TABLE---------------------");
printf("\n#\tMName\t#MDTP");
printf("\n-----------------------------------------------");
for(i=0;i<mntp;i++)
printf("\n%d\t%s\t%d",
i,mnt[i].mname,mnt[i].mdtp);
printf("\n------------------------------------------------");
getch();
}
void Print_PNT()
{ int i;
printf("\n\n------PARAMETER NAME TABLE--------");
printf("\n#\tPName");
printf("\n----------------------------------");
for(i=0;i<arglistp;i++)
printf("\n%d\t%s\t%s",i,arglist[i],apt[i]);
printf("\n----------------------------------");
getch();
}
void Print_MDT()
{ int i;
printf("\n\n-----------MACRO DEFINITION TABLE--------------");
printf("\nOpcode\tRest");
printf("\n-----------------------------------------------");
for(i=0;i<mdtp;i++)
printf("\n%d\t%s\t%s",i,mdt[i].opcode,mdt[i].rest);
printf("\n-----------------------------------------------");
getch();
}
char * nexttoken(char *str , char *token)
{
int i;
while(*str==' ')
str++;
if(*str==',' || *str=='=')
{
*token=*str;
token++;
str++;
*token='\0';
return(str);
}
while(isalnum(*str) || *str=='#' || *str=='&')
{
*token=*str;
token++;
str++;
}
*token='\0';
return(str);
}
void make_arglist(char *s)
{
int k;
pp=kpp=0;//no. of postional and keyword parameters
arglistp=0;
while(*s)
{
s=nexttoken(s,temp);
k = SearchPNT(temp+1);
if(k==-1)
strcpy(arglist[arglistp++],temp+1);
else
{
printf("\nError: Multiple Declaration of Symbol %s in Argument List",temp);
exit(0);
}
s=nexttoken(s,temp);
if(*temp=='=')
{ kpp++;
break; //handle keyword parameter
}
pp++;
}
if(*temp=='=')//handle keyword parameter
while(*s)
{
s=nexttoken(s,temp);
if(*temp!=',' )
strcpy(apt[arglistp-1],temp);
else
strcpy(apt[arglistp-1],"");
s=nexttoken(s,temp);
if(*temp=='\0')
break;
k = SearchPNT(temp+1);
if(k==-1)
strcpy(arglist[arglistp++],temp+1);
else
{
printf("\nError: Multiple Declaration of Symbol %s in Argument List",temp);
exit(0);
}
}
}
void Expand(int n)
{
int a;
int MEC;
char *pointer;
MEC = mnt[n].mdtp+1;
while(strcmpi(mdt[MEC].opcode,"MEND")!=0)
{ fprintf(fp2,"+%s ",mdt[MEC].opcode);
pointer=mdt[MEC].rest;
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
if(tok1[0]=='#')
{
a=atoi(tok1+1);
fprintf(fp2,"%s",apt[a]);
}
else
fprintf(fp2,"%s",tok1);
pointer=nexttoken(pointer,tok1);
}
fprintf(fp2,"\n");
MEC++;
}
}
void main()
{
int i=0,j=0,k=0,n;
char *pointer;//pointer for the array buffer
clrscr();
printf("\nEnter Source File Name: ");
scanf("%s",FName);
printf("\nEnter Target File Name: ");
scanf("%s",TName);
if((fp1=fopen(FName,"r"))==NULL)
{ printf("\nCannot Open Source File...%s",FName);
exit(0);
}
if((fp2=fopen(TName,"w"))==NULL)
{
printf("\nCannot Create Intermediate File...%s",TName);
exit(0);
}
while(fgets(Buffer,80,fp1))
{
pointer=Buffer;
nexttoken(pointer,tok1);
if(strcmpi(tok1,"MACRO")==0)
{
fgets(Buffer,80,fp1); //read the parameter line
pointer=nexttoken(pointer,tok1);
strcpy(mnt[mntp].mname,tok1);
mnt[mntp].mdtp = mdtp;
strcpy(mdt[mdtp].opcode,tok1);
strcpy(mdt[mdtp].rest,pointer);
mdtp++;
make_arglist(pointer);
mntp++;
while(fgets(Buffer,80,fp1)) //store the body of the macro
{
pointer=Buffer;
pointer=nexttoken(pointer,tok1);
if(strcmpi(tok1,"MEND")==0)
{
strcpy(mdt[mdtp].opcode,"MEND");
strcpy(mdt[mdtp++].rest,"");
arglistp=0;;
break;
}
else
{
strcpy(mdt[mdtp].opcode,tok1);
strcpy(mdt[mdtp].rest,"");
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
if(tok1[0]=='&')
{
k = SearchPNT(tok1+1);
if(k==-1)
{
printf("\nError: Parameter %s not found",tok1+1);
exit(0);
}
temp[0]='#';
temp[1]=k+48;//convert to ASCII
temp[2]='\0';
strcat(mdt[mdtp].rest,temp);
}
else
strcat(mdt[mdtp].rest,tok1);
pointer=nexttoken(pointer,tok1);
}
}
mdtp++;
}
}
else
{
k = SearchMNT(tok1);
if(k==-1)
fprintf(fp2,"%s",Buffer);
else
{
arglistp=0;
pointer=mdt[mnt[k].mdtp].rest;
make_arglist(pointer);
pointer=nexttoken(pointer,tok1);
//Handle positional parameters
pointer=Buffer;
pointer=nexttoken(pointer,tok1);//skip macro name
for(i=0;i<pp;i++)
{
pointer=nexttoken(pointer,tok1);
strcpy(apt[i],tok1);
pointer=nexttoken(pointer,tok1);//skip ,
}
//Handle keyword parameters
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
j=SearchPNT(tok1);//get location of the keyword parameter
//get the new value of the keyword parameter
pointer=nexttoken(pointer,tok1);//skip =
pointer=nexttoken(pointer,tok1);
strcpy(apt[j],tok1);
pointer=nexttoken(pointer,tok1);//skip ,
pointer=nexttoken(pointer,tok1);//read next parameter
}
Print_PNT();
Expand(k);
}//macro expansion
}
}
Print_MNT();
Print_MDT();
fcloseall();
}
//copy below macro and file save file_name.txt
MACRO
INCR &X, &Y,®=AREG
MOVER ®,&X
ADD ®,&Y
MOVEM ®,&X
MEND
MACRO
DECR &A,&B,®=BREG
MOVER ®,&A
SUB ®,&B
MOVEM ®,&A
MEND
START 100
READ N1
READ N2
INCR N1,N2,REG=CREG
DECR N1,N2
STOP
N1 DS 1
N2 DS 1
END
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
struct MNT
{
char mname[20];
int mdtp;
}mnt[5];
struct MDT
{
char opcode[15],rest[35];
}mdt[30];
char arglist[15][15],apt[10][15];
int mdtp=0,mntp=0,arglistp=0;
char FName[20], TName[20];
char Buffer[80], temp[40],tok1[40];
int pp,kpp;// no. of positional and keyword parameters
FILE *fp1, *fp2;
int SearchMNT(char *s)
{ int i;
for(i=0; i<mntp; i++)
if(strcmpi(s,mnt[i].mname)==0)
return(i);
return(-1);
}
int SearchPNT(char *s)
{ int i;
for(i=0;i<arglistp;i++)
if(strcmpi(arglist[i],s)==0)
return(i);
return(-1);
}
void Print_MNT()
{ int i;
printf("\n\n----------MACRO NAME TABLE---------------------");
printf("\n#\tMName\t#MDTP");
printf("\n-----------------------------------------------");
for(i=0;i<mntp;i++)
printf("\n%d\t%s\t%d",
i,mnt[i].mname,mnt[i].mdtp);
printf("\n------------------------------------------------");
getch();
}
void Print_PNT()
{ int i;
printf("\n\n------PARAMETER NAME TABLE--------");
printf("\n#\tPName");
printf("\n----------------------------------");
for(i=0;i<arglistp;i++)
printf("\n%d\t%s\t%s",i,arglist[i],apt[i]);
printf("\n----------------------------------");
getch();
}
void Print_MDT()
{ int i;
printf("\n\n-----------MACRO DEFINITION TABLE--------------");
printf("\nOpcode\tRest");
printf("\n-----------------------------------------------");
for(i=0;i<mdtp;i++)
printf("\n%d\t%s\t%s",i,mdt[i].opcode,mdt[i].rest);
printf("\n-----------------------------------------------");
getch();
}
char * nexttoken(char *str , char *token)
{
int i;
while(*str==' ')
str++;
if(*str==',' || *str=='=')
{
*token=*str;
token++;
str++;
*token='\0';
return(str);
}
while(isalnum(*str) || *str=='#' || *str=='&')
{
*token=*str;
token++;
str++;
}
*token='\0';
return(str);
}
void make_arglist(char *s)
{
int k;
pp=kpp=0;//no. of postional and keyword parameters
arglistp=0;
while(*s)
{
s=nexttoken(s,temp);
k = SearchPNT(temp+1);
if(k==-1)
strcpy(arglist[arglistp++],temp+1);
else
{
printf("\nError: Multiple Declaration of Symbol %s in Argument List",temp);
exit(0);
}
s=nexttoken(s,temp);
if(*temp=='=')
{ kpp++;
break; //handle keyword parameter
}
pp++;
}
if(*temp=='=')//handle keyword parameter
while(*s)
{
s=nexttoken(s,temp);
if(*temp!=',' )
strcpy(apt[arglistp-1],temp);
else
strcpy(apt[arglistp-1],"");
s=nexttoken(s,temp);
if(*temp=='\0')
break;
k = SearchPNT(temp+1);
if(k==-1)
strcpy(arglist[arglistp++],temp+1);
else
{
printf("\nError: Multiple Declaration of Symbol %s in Argument List",temp);
exit(0);
}
}
}
void Expand(int n)
{
int a;
int MEC;
char *pointer;
MEC = mnt[n].mdtp+1;
while(strcmpi(mdt[MEC].opcode,"MEND")!=0)
{ fprintf(fp2,"+%s ",mdt[MEC].opcode);
pointer=mdt[MEC].rest;
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
if(tok1[0]=='#')
{
a=atoi(tok1+1);
fprintf(fp2,"%s",apt[a]);
}
else
fprintf(fp2,"%s",tok1);
pointer=nexttoken(pointer,tok1);
}
fprintf(fp2,"\n");
MEC++;
}
}
void main()
{
int i=0,j=0,k=0,n;
char *pointer;//pointer for the array buffer
clrscr();
printf("\nEnter Source File Name: ");
scanf("%s",FName);
printf("\nEnter Target File Name: ");
scanf("%s",TName);
if((fp1=fopen(FName,"r"))==NULL)
{ printf("\nCannot Open Source File...%s",FName);
exit(0);
}
if((fp2=fopen(TName,"w"))==NULL)
{
printf("\nCannot Create Intermediate File...%s",TName);
exit(0);
}
while(fgets(Buffer,80,fp1))
{
pointer=Buffer;
nexttoken(pointer,tok1);
if(strcmpi(tok1,"MACRO")==0)
{
fgets(Buffer,80,fp1); //read the parameter line
pointer=nexttoken(pointer,tok1);
strcpy(mnt[mntp].mname,tok1);
mnt[mntp].mdtp = mdtp;
strcpy(mdt[mdtp].opcode,tok1);
strcpy(mdt[mdtp].rest,pointer);
mdtp++;
make_arglist(pointer);
mntp++;
while(fgets(Buffer,80,fp1)) //store the body of the macro
{
pointer=Buffer;
pointer=nexttoken(pointer,tok1);
if(strcmpi(tok1,"MEND")==0)
{
strcpy(mdt[mdtp].opcode,"MEND");
strcpy(mdt[mdtp++].rest,"");
arglistp=0;;
break;
}
else
{
strcpy(mdt[mdtp].opcode,tok1);
strcpy(mdt[mdtp].rest,"");
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
if(tok1[0]=='&')
{
k = SearchPNT(tok1+1);
if(k==-1)
{
printf("\nError: Parameter %s not found",tok1+1);
exit(0);
}
temp[0]='#';
temp[1]=k+48;//convert to ASCII
temp[2]='\0';
strcat(mdt[mdtp].rest,temp);
}
else
strcat(mdt[mdtp].rest,tok1);
pointer=nexttoken(pointer,tok1);
}
}
mdtp++;
}
}
else
{
k = SearchMNT(tok1);
if(k==-1)
fprintf(fp2,"%s",Buffer);
else
{
arglistp=0;
pointer=mdt[mnt[k].mdtp].rest;
make_arglist(pointer);
pointer=nexttoken(pointer,tok1);
//Handle positional parameters
pointer=Buffer;
pointer=nexttoken(pointer,tok1);//skip macro name
for(i=0;i<pp;i++)
{
pointer=nexttoken(pointer,tok1);
strcpy(apt[i],tok1);
pointer=nexttoken(pointer,tok1);//skip ,
}
//Handle keyword parameters
pointer=nexttoken(pointer,tok1);
while(tok1[0]!='\0')
{
j=SearchPNT(tok1);//get location of the keyword parameter
//get the new value of the keyword parameter
pointer=nexttoken(pointer,tok1);//skip =
pointer=nexttoken(pointer,tok1);
strcpy(apt[j],tok1);
pointer=nexttoken(pointer,tok1);//skip ,
pointer=nexttoken(pointer,tok1);//read next parameter
}
Print_PNT();
Expand(k);
}//macro expansion
}
}
Print_MNT();
Print_MDT();
fcloseall();
}
//copy below macro and file save file_name.txt
MACRO
INCR &X, &Y,®=AREG
MOVER ®,&X
ADD ®,&Y
MOVEM ®,&X
MEND
MACRO
DECR &A,&B,®=BREG
MOVER ®,&A
SUB ®,&B
MOVEM ®,&A
MEND
START 100
READ N1
READ N2
INCR N1,N2,REG=CREG
DECR N1,N2
STOP
N1 DS 1
N2 DS 1
END