Team Members

Rohit Patil   17110126
Anubhav Jain  17110021
Chandan Maji  17110037
Harshil Jain  17110060

How to compile:

rm lex.yy.c calc.tab.c calc.tab.h a.out
bison --debug -d calc.y
flex --debug tok.l
gcc calc.tab.c lex.yy.c -lfl

How to run:

./a.out<strln.prog

Features :

if-else (nested support)
While loop (nested support)
For loop (nested support)
break statement

.prog file syntax

if-else syntax:

	e.g.
	condition should be only of this form: a<b

	if(a<b){
	t = t+1
	}else{
	j = j+1
	}

while loop syntax:
	
	e.g
	while(a<b){
	a=a+1
	}

for loop syntax:

	e.g
	for(i=0;i<j;i=i+1){   
	k = k+1
	}

Break statement syntax:
	
	e.g
	if(a<b)break

---

How to run: ./a.out<[program_name]

e.g
./a.out<strln.prog

Sample programs

We have provided these example programs:
	double.prog
	double_while_example.prog
	while_break_example.prog
	for_break_example.prog
	while_for_example.prog
	nested_for_example.prog
	nested_if_example.prog
	for_if_example.prog
	strln.prog

The output will be asmb.asm. Load asmb.asm in Mars, assemble and run.

1. What is the output? The last expression is the output.

2. Put a nextline character at the end of the last statement.

3. The condition inside the while loop needs to of atomic nature (var relop var).