xotmatrix

Deck

A TweetDeck-like dashboard, but for any website or window

scripts

GMLscripts.com scripts for GameMaker Studio

4cade

100s of games at your fingertips, as long as your fingertips are on an Apple ][

4sports

Total Replay II: Instant Replay

adtpro

Apple Disk Transfer ProDOS (ADTPro)

adventure-replay

apple2shader

Port(s) of the OpenEmulator NTSC/PAL GPU shader

appleII_deadtest

ROM based March-U RAM test for the Apple II

AppleWin

Apple II emulator for Windows

PQ_priority_queue

GML implementation of ds_priority functions

xotmatrix.github.io

AppleII-VGA

VGA card for Apple II+/IIe computer

Cathode-Retro

A collection of shaders to emulate the display of an NTSC signal through a CRT TV

ciderpress

CiderPress Apple II archive utility for Windows

Deathlord-Relorded

The greatly misunderstood RPG Deathlord reskinned, upgraded, updated for Win10+

docs

documentations, slides decks...

emu6502

FluxBB_by_Visman

My modification of FluxBB

fonts

GameMaker-HTML5

GameMaker HTML5 runtime

HelpfulGMLScripts

An open source resource for GameMaker scripts

hoard-of-bitfonts

turns out I like bitmap fonts

LanguageCard

An Apple II Language Card. Based on a design by iz8dwf

LPG

mame

MAME

mb-audit

NTSC-CRT

NTSC encoding/decoding in C89 using only integers and fixed point math. Can be used as an image filter for games or real-time applications.

ProcessorTests

An instruction-by-instruction test suite for the 6502 and 65c02 that includes bus activity.

tiny-expression-runtime

Sample project from the interpreters guide. Also see https://yal.cc/interpreters-guide-2/

wizard-replay