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.
| 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 |
| Code | Effects |
|---|---|
| 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 |
| Command line argument | Effect |
|---|---|
| -timedemo demo3 | Run benchmark |
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Install Open Watcom V2.0 and NASM on Ubuntu.
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Change the paths in
setenvwc.shand runsource ./setenvwc.shto set the environment variables. -
Build the ELKS C Library for the medium memory model.
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Run
./compelks.shto compileelksdoom.os2.