kamalinux / monty

Monty is an interpreter of Monty ByteCodes files. Monty 0.98 is a scripting language that is first compiled into Monty byte codes (Just like Python).

0x19. C - Stacks, Queues - LIFO, FIFO - Monty

Monty

Monty is an interpreter of Monty ByteCodes files. Monty 0.98 is a scripting language that is first compiled into Monty byte codes (Just like Python).

About the Monty language

Monty is a language that aims to close the gap between scripting and programming languages. It contains specific instructions to manipulate data information (stacks or queues), where each instruction (called opcode) is sended per line. File contains Monty byte code usually ended by .m extension.

Usage

To compile all files:

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

To run the interpreter:

$ ./monty bytecode_file.m

Features

monty executes the following operation codes:

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
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
#	When the first non-space of a line is a # the line will be trated as a comment (don’t do anything)
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
queue	Sets the format of the data to a queue (FIFO)
stack	Sets the format of the data to a stack (LIFO)