Monty

Description

This repository contains the files for the Monty project, which is part of the curriculum of the low-level programming and algorithm track at alx-africa. In this project, we were required to build an interpreter for Monty ByteCodes files.

Files

• monty.h - Header file containing all the function prototypes and data structures used in this project.

• main.c - Entry point of the program.

• addfirst.c - Contains the function that adds a new node at the beginning of a stack_t list.

• free_stack.c - Contains the function that frees a stack_t list.

• parse_line.c - Contains the function that parses a line of Monty ByteCodes and calls the appropriate function to execute the line.

• push.c - Contains the function that pushes an element to the stack.

• pall.c - Contains the function that prints all the elements of the stack.

Usage

To use the program, clone this repository into your local repository:

git clone https://github.com/4MR4N11/monty.git

Compile the program using the following command:

gcc -Wall -Werror -Wextra -pedantic *.c -o monty

Run the program using the following command:

./monty <file>

Opcode Functions

Opcode	Description
push	Pushes an element to the stack.
pall	Prints all the elements of the stack.
pint	Prints the value at the top of the stack.
pop	Removes the top element of the stack.
swap	Swaps the top two elements of the stack.
add	Adds the top two elements of the stack.
nop	Does nothing.
sub	Subtracts the top element of the stack from the second top element of the stack.
div	Divides the second top element of the stack by the top element of the stack.
mul	Multiplies the second top element of the stack with the top element of the stack.
mod	Computes the rest of the division of the second top element of the stack by the top element of the stack.
pchar	Prints the char at the top of the stack.
pstr	Prints the string starting at the top of the stack.
rotl	Rotates the stack to the top.
rotr	Rotates the stack to the bottom.
stack	Sets the format of the data to a stack (LIFO).
queue	Sets the format of the data to a queue (FIFO).

Examples

$ cat bytecodes/00.m
push 1
push 2
push 3
pall
$ ./monty bytecodes/00.m
3
2
1

$ cat bytecodes/01.m
push 1
push 2
push 3
pall
swap
pall
$ ./monty bytecodes/01.m
3
2
1
2
3
1

$ cat bytecodes/02.m
stack
push 1
push 2
push 3
pall
queue
push 4
push 5
push 6
pall
$ ./monty bytecodes/02.m
3
2
1
6
5
4