ELKSDOOM

Doom was originally designed in 1993 for 32-bit DOS computers with 4 MB of RAM. It's mostly written in C code with very little assembly code. It has been ported to all kinds of systems. Usually these systems are 32-bit or more and have a flat memory model.

ELKSDOOM is a port for ELKS. It's based on Doom8088. Download ELKSDOOM here.

Controls:

Action	Keys
Fire	/
Use	Enter & Space
Walk	Arrow keys & 8 & 2 & 4 & 6 & A & S & D & F & H & J & K & L
Strafe left and right	< & >
Automap	Tab
Automap zoom in and out	+ & -
Automap follow mode	F
Weapon up and down	[ & ]
Menu	Esc
Quit to ELKS	Ctrl + Q

Cheats:

Code	Effects	Notes
IDCHOPPERS	Chainsaw
IDDQD	God mode
IDKFA	Ammo & Keys
IDKA	Ammo
IDSPISPOPD	No Clipping
IDBEHOLDV	Invincibility
IDBEHOLDS	Berserk
IDBEHOLDI	Invisibility
IDBEHOLDR	Radiation shielding suit
IDBEHOLDA	Auto-map
IDBEHOLDL	Lite-Amp Goggles
IDCLEV	Exit Level
IDEND	Show end text
IDROCKET	Enemy Rockets	(GoldenEye)
IDRATE	Toggle FPS counter	Divide by 10 to get the real FPS

Command line arguments:

Command line argument	Effect
-timedemo demo3	Run benchmark

Building:

1. Install Open Watcom V2.0 and NASM on Ubuntu.

2. Change the paths in setenvwc.sh and run source ./setenvwc.sh to set the environment variables.

3. Build the ELKS C Library for the medium memory model.

4. Run ./compelks.sh to compile elksdoom.os2.