MD/DOOM

Microfirmware for the SidecarTridge Multi-device by Neil Rackett

Introduction

The SidecarTridge Multi-device is brilliant, but can it run DOOM?

MD/DOOM brings full speed, fully playable Doom to your Atari ST via your SidecarT. Sound effects use the STE DMA chip if you have one or the YM2149 if you don't. No music at the moment.

See README.md for more information.

Installation

You can install MD/DOOM from the official SidecarTridge Multi-device store using the Booster web app, or manually if you prefer. Either way you'll need to download the shareware level packs below.

Manual installation

1. Download the latest .uf2, .json and shareware level packs below.
2. Copy both the .uf2 and .json into the /apps folder of your SidecarT's microSD card, and extract all of the E1M*.whx files into a /doom folder.
3. On the Booster screen, press ESC for the app list and select MD/DOOM.
4. To return to Booster, power on your ST while holding the SELECT button on your SidecarT.

Controls

Controls match the original PC Doom:

Key	Action
↑ ↓ ← →	Move and turn (the keypad works too)
Control	Fire
Space	Use (doors, switches)
Alternate	Strafe
Shift	Run
1 to 7	Weapons
Esc	Menu
Tab	Automap
F1 to F10	Help, save, load, volume, detail, quick-save, end game, messages, quick-load, quit
Help	Gamma (F11 on a PC)
Undo	Pause
- and +	Screen size
Keypad * and /	Cycle through dither and palette options (see below); your choice is remembered

A joystick in port 1 moves, turns and fires.

Quit from the menu (or pressing F10) returns you to GEM.

Dither options: nearest colour, 2×2 Bayer, 4×4 Bayer (default), halftone, blue noise.
Colour palettes: STDOOM (default), generated, greyscale, EGA, CGA, C64, ZX Spectrum, PICO-8.