Monty

Monty is a scripting language that is first compiled into monty byte codes (Just like python). It relies on a unique stack, with specific instructions to manipulate it. monty is an interpreter built specially for the Monty Bytecodes files.

More About the Monty language

This is a language that contains specific instructions to manipulate data information (stacks or queues), where each instruction (called opcode) is sended per line. Files which contains Monty byte codes usually have the .m extension.

Environment

• Language: C
• OS: Ubuntu 14.04 LTS
• Compiler: gcc 4.8.4
• Style guidelines: Betty style

Getting Started

• clone the repository git clone https://github.com/selma-belhadj/monty.git
• navigate to the repository cd monty

Usage

To compile all files:

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

The synopsis of the interpreter is the following:

$ ./monty [filename]
$

To run the interpreter:

$ ./monty file.m
2
1
0
0
3
2
1
$

Features

Opcodes

monty executes the following opcodes:

Opcode	Description
push	Pushes an element to the stack
pall	Prints all the values on 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
queue	Sets the format of the data to a queue (FIFO)
stack	Sets the format of the data to a stack (LIFO)
nop	Doesn't do anything
add	Adds the top two elements of the stack
sub	Subtracts the top element of the stack from the second top element of the stack
mul	Multiplies the second top element of the stack with the top element of the stack
div	Divides the second top element of the stack by 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

Comments, indicated with #, are not executed by the interpreter.

When a nonextistent opcode is passed, the interpreter prints an error message and stops:

$ cat errorfile.m
push 1
pint
pcx
$ ./monty errorfile.m
1
L3: unknown instruction pcx

Authors

👤 Selma Belhadj

• GitHub: @selma-belhadj
• Twitter: @Bel_Selma16
• LinkedIn: @selma-belhadj

🤝 Contributing

Contributions, issues, and feature requests are welcome!

Feel free to check the issues page.

Show your support

Give a ⭐️ if you like this project!