Monty Language Interpreter

About

• This is an introductory project that explains:
• What do LIFO and FIFO mean
• What is a stack, and when to use it
• What is a queue, and when to use it
• What are the common implementations of stacks and queues
• What are the most common use cases of stacks and queues
• What is the proper way to use global variables
• How to work with git submodules

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Requirements

• Ubuntu 20.04 LTS
• gcc version 9.4.0 flags: -Wall -Werror -Wextra and -pedantic

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Installation

1. Clone the repository https://github.com/fatimasgit/holbertonschool-monty

2. Compile the program gcc -Wall -Werror -Wextra -pedantic *.c -o monty

3. Run the program as follows:

• Usage: monty <file.m>
• Ex: ./monty ./bytecodes/00.m

There are multiple .m files to choose from in the bytcodes files that run different Opcode functionality. Below is a table of all the Opcode options. Each file in the bytcodes folder contains different Opcodes that run their specific functionality.

Opcode Name	Opcode Description
push	pushes an element on to the stack
pall	prints all the values on the stack, starting from the top
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	doesn't do anything
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 modulus of the second top element of the stack by the top element of the stack
comments (#)	add a # to the beginning of the line to comment in the file
pchar	prints the ASCII equivalent of the number at the top of the stack
pstr	prints the ASCII equivalent of the numbers stored in each element in the stack, starting from the top
rotl	rotates the top element of the stack to the bottom of the stack
rotr	rotates the bottom element of the stack to the top of the stack

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Example

$ cat -e bytecodes/000.m
push 0$
push 1$
push 2$
  push 3$
                   pall    $
push 4$
    push 5    $
      push    6        $
pall$
$ ./monty ./bytecodes/000.m
3
2
1
0
6
5
4
3
2
1
0
$
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Other files

• monty.h - Header file; Contains function, struct and global variable declarations
• bytecodes - A directory containing test files used while making this program

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Technologies Used

• Language: C
• Operating System: gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1) (Trusty64)
• Style: Betty
• Compiler: GCC

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Author

Sakina Mammadzade Fatima Mammadova