Write a Python program using the PLY package to implement an interpreter for RAM programs. Here are some sample RAM programs:

Addition (p1.ram)

# Program to add two numbers # inputs are in r1 and r2 # output, as always, is in r1 # # initialize input registers r1 = 9 R2 = 3 # # begin program n0 R2 JMP N1b INC R1 DEC R2 JMP N0a N1 CONTINUE 

Integer Division (p2.ram)

R1=7 R2=3 MOV R3, R2 N1 R1 JMP N4b MOV R2, R3 N2 R2 JMP N3b DEC R1 R1 JMP N1a DEC R2 JMP N2a N3 INC R4 JMP N1a N4 MOV R1, R4 CONTINUE 

Exponentiation (p3.ram)

R1=3 R2=5 MOV R3, R1 N1 DEC R2 R2 JMP N4b MOV R6, R3 MOV R5, R1 N2 DEC R5 R5 JMP N1a MOV R4, R6 N3 R4 JMP N2a INC R3 DEC R4 JMP N3a N4 MOV R1, R3 CONTINUE 

Sample Runs

mirage:ram-python raj$ python3 RAM.py p1.ram Input: R1 ==> 9 R2 ==> 3 Output: R1 = 12 mirage:ram-python raj$ python3 RAM.py -d p1.ram Input: R1 ==> 9 R2 ==> 3 Executing: N0 R2 JMP N1B Executing: INC R1 Executing: DEC R2 Executing: JMP N0A Executing: N0 R2 JMP N1B Executing: INC R1 Executing: DEC R2 Executing: JMP N0A Executing: N0 R2 JMP N1B Executing: INC R1 Executing: DEC R2 Executing: JMP N0A Executing: N0 R2 JMP N1B Executing: N1 CONTINUE Output: R1 = 12 

Submit the following files: RAM.py, RAMLexer.py, RAMParser.py, and README