https://github.com/rysteq/stacky

https://github.com/rysteq/stacky

Last synced: about 1 year ago
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• Host: GitHub
• URL: https://github.com/rysteq/stacky
• Owner: RysteQ
• Created: 2024-01-01T00:09:33.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2024-01-01T01:42:26.000Z (over 2 years ago)
• Last Synced: 2025-03-23T16:15:42.568Z (over 1 year ago)
• Language: C#
• Size: 17.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: ReadMe.md

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README

          
# Stacky

Stacky is a stack based interpreted language that I made in a few hours as a stepping stone in my journey to interpreters. Stacky is a simple language, only compromising of 21 instructions with 18 of them requiring no operands at all and the stack being 64 kilobytes in size.

The instructions are as follows

	

		Instruction

		Description

	

	

		PUSH

		Pushes the byte value provided into the stack

	

	

		POP

		Pops the last value pushed from the stack

	

	

		POPP

		Pops the last value pushed from the stack and prints out the integer

	

	

		POPPC

		Pops the last value pushed from the stack and prints out the ASCII character

	

	

		INC

		Pops the last value pushed from the stack, increments it, and pushes it back into the stack

	

	

		DEC

		Pops the last value pushed from the stack, decrements it, and pushes it back into the stack

	

	

		ADD

		Pops the last two values from the stack, adds them, and pushes the result into the stack

	

	

		SUB

		Pops the last two values from the stack, subtracts them, and pushes the result into the stack

	

	

		MUL

		Pops the last two values from the stack, multiplies them, and pushes the result into the stack

	

	

		DIV

		Pops the last two values from the stack, divides them, and pushes the quotient into the stack

	

	

		MOD

		Pops the last two values from the stack, divides them, and pushes the remainder into the stack

	

	

		COPY

		Pops the last value from the stack and pushes it two times into the stack

	

	

		CCF

		Clears the conditional flag

	

	

		CMPE

		Pops the last two values from the stack and compares them, if they are equal the conditional flag is set to true

	

	

		CMPL

		Pops the last two values from the stack and compares them, if the first value is smaller than the second the conditional flag is set to true

	

	

		CMPG

		Pops the last two values from the stack and compares them, if the first value is bigger than the second the conditional flag is set to true

	

	

		JC

		Jumps to the specified line if the conditional flag is set to true

	

	

		JMP

		Jumps to the specified line

	

	

		RPUSH

		Read a key character from the keyboard as input and pushes the value into the stack

	

	

		NEWL

		Prints a new line character

	

	

		HAULT

		Stops the program and sets the exit code equal to the value provided