README.md

lol lang

Lol lang is a basic stack-based interpreted language with its syntax inspired from assembly.

• Currently works only with integers
• supports the following features
• Refer the examples folder for code examples

Feature	Description
PUSH	Push to the stack
POP	Pop from the stack
ADD	add last 2 values from the stack
SUB	subtracts last 2 values from the stack
PRINT	prints things to the screen
READ	read input from the user
JUMP.EQ.0	jump if top of the stack is zero
JUMP.GT.0	jump if the top of the stack is greater than zero
HALT	marks the end of the program

Usage

# download the binary release from the releases page
# or just clone the repo and build the project

# build the project
make build

# execute your lol program
bin/lol <file_name>.lol

Examples

as given in the examples folder

# example.lol
PRINT "hello world"
HALT

# result
hello world

# example.lol
PRINT "enter first number"
READ
PRINT "enter second number"
READ
SUB
JUMP.EQ.0 L1
PRINT "not equal"
HALT

L1:
PRINT "equal"
HALT

# result
enter first number
12
enter second number
12
equal

# example.lol
PUSH 232
PUSH 1
ADD
JUMP.EQ.0 L1

LOOP:
PUSH 2
SUB
JUMP.EQ.0 L1
JUMP.GT.0 LOOP
PRINT "even"
HALT

L1:
PRINT "odd"
HALT

# result
even

# example.lol
PUSH 69
JUMP.EQ.0 L2
JUMP.GT.0 L0
PRINT "A"
HALT

L0:
PUSH 3
SUB
JUMP.EQ.0 L1
JUMP.GT.0 L0
PRINT "B"
HALT

L1:
PRINT "C"
HALT

L2:
PRINT "D"
HALT

# result
C