On Wed, Nov 27, 2013 at 6:58 AM, Butterfly Close
<closebutter...@gmail.com> wrote:
> 2013/11/26 Rugxulo <rugx...@gmail.com>
>> What about Descent??
>> http://www.classicdosgames.com/game/Descent.html
> Descent works well; both music (MIDI) and sound; (By the way, Descend have
> utility "setup.exe", which is useful to see "BLASTER=" variables....
> probably)
> But some troubles exist. First - Descent can not see correct memory size.
> Add "-NoMemCheck" to avoid this.

I haven't checked, but I'm assuming it uses DOS4GW.EXE (or maybe the
professional version bundled to the main .EXE), which may be the
culprit since it's somewhat old and limited (64 MB?). If so, you could
try some better alternatives (DOS32A.EXE or WDOSX or Causeway). Oops,
I forgot, professional may use some features not supported by others.
Oh well, still maybe worth a shot. IIRC, at least Doom still worked.

> Second -Descend freeze; when I play with options (descent.exe --help), I
> disable joystick to avoid this; "-NoJoystick"; this two options I added to
> "Descent.bat":

No idea, but since "most" (?) PCs don't come with serial nor parallel
ports anymore, your best bet for joystick is probably just to use
DOSBox emulator.

> And third trouble: it seems to CPU too fast.  Some "slow rocking" of
> spaceship - has turned into a "fast shaking". I just need to find some
> CPU-slow utility, my usual "slowdown.exe" not help in this case... I do it
> later...

Again, this is where DOSBox shines. It lets you adjust the frameskip
or cpu cycles or even emulation core. Though to be honest, by default
it's like a "fast" 486 DX, which is slow enough for most old '90s
games. You could maybe also use DOSEMU, but I think DOSBox is better
since it's more tested (and meant only) for games.

I'm not that much of a gamer, but I did play the Chasm: The Rift demo
(CHASM-SW.RAR) two years ago, and I had to do a few minor things to
get it to work in real (native) DOS. It's an old '90s game that used
BP7's 16-bit DPMI stuffs, so I had to load HDPMI16 and then "FDAPM
SPEED3" before it would work (albeit without sound, natch). IIRC,
emulation was more enjoyable, but it's still nice to be able to run
natively (for when emulation doesn't work or is too slow).

I'm sure there are other slowdown utils (e.g.
http://www.bretjohnson.us has "SLOWDOWN", aka slodn310.zip), but I
haven't tested them recently.

P.S. Oops, almost forgot, it could be some timing issue with some
driver or TSR in the background (e.g. some games don't like IDLEDPMS),
so you could also try temporarily disabling most things and only
booting (fairly) clean before playing.

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