Short:    Amiga Doom for PowerPC/ELF
Author:   frank@phoenix.owl.de (Frank Wille)
Uploader: frank@phoenix.owl.de
Version:  0.3
Type:     game/shoot
Replaces: game/shoot/VDoomPPC*
Requires: Cyberstorm-PPC, ppc.library V45.5

VDoom was compiled by vbcc 0.6 (PPC code generator V0.2i) and is
based on the source codes of Peter McGavin's ADoom V0.8. Besides
fixed point arithmetics, little-endian conversion and chunky-to-
planar, there were no assembler optmimizations done (even the com-
piler was run without them :). I included c2p_ppc.s as an example
(now, it really works for all cases).


The following features of ADoom are missing:
- Special c2p-hacks, using blitter-support and so on. Because of the
  PPC's speed, this is not worth the effort. :)
- Low detail mode was deactivated, because it gives not the slightest
  advantage on PPC.
- Music is missing. I have not the time for playing human M68k-PPC
  translator. :(
  Maybe I can run it as an asynchronous M68k-process in future?
- VDoomPPC can not be started from Workbench. You have to provide a
  shell script by IconX, if you really want that. This is not a bug,
  but the WB-startup code for vbcc-AmigaPPC still has to be written...


Fixed bugs from last Aminet release, VDoomPPC V0.1:
- AGA display was incorrect (some bits were swapped)
- Palette change for ECS-EHB didn't work.
- Texture name comparison function had a bug, which caused doom2.wad,
  and some others, to fail.


New features refering to ADoom:
- Game is more or less resolution sensitive. So I can compile VDoomPPC
  for 320x200, 640x400, 960x600 and so on. A 640x400-version,
  VDoomPPC_HiRes, is included.


Bugs:
- I played some hours the last two days and the stability of the
  game seems to be acceptable with my system (A3000, CSPPC/060-
  50/604-200, CV64, 80MB). Only one or two random crashes, when a
  new game was started (ppc.library cache bug?).
- There are reports from some users, that AGA crashes after some
  time and ECS is not much better. As I have no AGA and ECS works
  very well, I decided to ignore this and release VDoomPPC never-
  theless.
- Network support is implemented, but untested. I would be surprised,
  if it works. ;)
- I have one report, that VDoomPPC didn't run with ppc.library V45.2
  (crashes after selecting screen mode), but I haven't checked this.
  Generally, any ppc.library since V44 should work...
- The screen mode requester shows low resolutions (320x200) even if
  MinWidth=640 for VDoomPPC_HiRes is set - strange...


Starting Doom:

VDoomPPC is an ELF object and requires a loader like runelf or
ppcrun (the last one is included). And, of course, you have to
put a valid WAD file into the same directory.

I really don't know, how much stack is required. I'm using 65536
bytes as default in my shell and have no problems.

Start it by typing:

PPCRun VDoomPPC [options]


Some options:
-forcedemo      Force demo replaying.
-fps            Show frames per second in upper left edge.
-mouse          Activates mouse control.
-rotatemap      Auto mapper display rotates around the player's
                position.
-maponhu        Display the auto map directly onto the HU-display.
-file <name>    Play a custom WAD (requires registered doom.wad or
                doom2.wad).
(... for more options refer to the ADoom instructions :)


Thanks to:

Peter McGavin, for his great ADoom and giving me the permission
to use his source for my PPC-Doom.

Volker Barthelmann, for the vbcc compiler and for fixing compiler
bugs in record time.

id-Software, for making the Doom source publically available.


--
Frank Wille, 31.01.98
frank@phoenix.owl.de