README.md

MacroProcessor (2 Passes)

Creating a 2 Pass MacroProcessor using C language as a part of college Coursework.

This Repo contains all the input and output files for both the passes of the macroprocessor.

To run it :

Place macropass1.c, macropass2.c and minp2.txt(input file in the same folder

Run macropass1.c

Run macropass2.c

Algorithm for pass 1 of macro processor :-

1. Initialize MNTC ( Macro Name Table ) Counter = 0 and MDTC ( Macro Definition Table

Counter ) = 0

2. Scanning of all macro definitions one by one . If MACRO found in program then for each macro perform:

3. MNTC = MNTC + 1 and enter name of MACRO in MNTC ( Macro Name Table ).

4. For every model statement MDTC = MDTC + 1 in definition of macro

5. Generate argument list array.

Algorithm for pass 2 of macro processor:-

1. Scan main program for macro call. For each macro call perform.

2. Scan MNT to detect Macro Name and its address in MDT ( Macro Definition Table ).

3. Replacement of all formal parameters by actual parameters.

4. Replace macro call by model statements from MDT.