VOGONS


Reply 20 of 25, by Dark Knight ez

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if your pc is too fast to get a good 100MHz-200Mz feeling,
why don't you use a program like Turbo or MoSlow?

those programs keep your CPU busy (a percentage of your
CPU-power, which you can set, actually).
by doing that, they "slow down" the computer. worth a shot.

... // bda. very bda!
... // but only if you turn godo into csah.

Reply 21 of 25, by Snover

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🤣. Turbo and Mo'Slo will NOT work to slow a system down that much, and in either case they don't cause uniform slowness, they eat up X clock cycles which means for those X clock cycles the programs trying to run can't and then for the other Y clock cycles they can.

Yes, it’s my fault.

Reply 22 of 25, by Guest

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omfg you don't like Ultima 7?

I mean, sure, I liked Ultima 5 the best of all, but Ultima 7 was really good, the last of the great role playing games. Ultima 7 part 2 was really good too, and I kinda bundle them together as one long game.

I didn't like Ultima 7 at first either, because I used to like jotting down notes and such. With the mouse point and click it was a lot easier. But it was still a lot of fun and the storyline and challenge made it one of those games I'll never forget. You could "touch" almost everything in the game, there were tons of sub-plots and quests, references to the old ultimas, tons of dialogue.. I mean, the game is huge.

But yea, if you want to play U7 on a modern PC, you wouldn't use DOSBox anyways, you'd use Exult. Exult uses the U7 or U7-2's data files and plays the game flawlessly, and in my opinion, quite a bit better then the original. They even fixed a bunch of bugs in the original. Honestly, with Exult the game is a lot of fun and I urge you to play it through, without hacks or cheats. When the end of the game comes, you'll want more. I promise..

But *anyways*.... I don't quite follow the need for someone to get "33Mhz" from DOSBox. There's far too many factors to even begin to think about how fast/slow it should run a game.

First you have your unique system, with your own speeds of ram, cpu, video, etc etc, running in a multitasking OS. So like, your setting for "33Mhz old 486 pc with a trident video board" (if you ever found such a setting) would be completely different from mine or anyone else's.

Then you want to match it to a speed of an old PC, which was running a single-task OS, completely different everything - not to mention the fact that not all 33Mhz 486's were created equal either. When you look at it that way, there's no way to do it.

Even getting the timing right on a Commodore 64 emulator, which mind you was a .97Mhz machine, is impossible and uses a lot of CPU cycles trying to get it "close enough."

So I just think, run the game. If it runs too fast, slow down the emulator. If it runs too slow, speed it up. No biggie really.

About VDMSound, it's worked for me in varying degrees for some things, but for the most part stuff just doesn't like to run in a Windows NT/2k/XP dos box. There's a lot of reasons - video modes, EMS/XMS memory, "off-limits" cpu and memory calls, etc. DOSBox overcomes these things with a fully emulated environment, and I've had awesome success with it. However, this full emulation comes at a performance cost. For me, it's not a big deal since the stuff I use it with are fairly old games. You know, Prince of Persia, The Incredible Machine, Dune 2, etc.

And to add to this already too-long post: If any of ya'll had a GUS and miss the old GUS music sound, grab yourself a copy of twsynth and MIDI Yoke. twsynth is a modification of timidity which uses GUS patches. It's sweet playing these games with the same music I remember. And one thing I just don't understand is how good the GUS sounded compared to even my new soundblaster with 100MB soundfonts..

Reply 23 of 25, by Stiletto

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Anonymous wrote:

And to add to this already too-long post: If any of ya'll had a GUS and miss the old GUS music sound, grab yourself a copy of twsynth and MIDI Yoke. twsynth is a modification of timidity which uses GUS patches. It's sweet playing these games with the same music I remember. And one thing I just don't understand is how good the GUS sounded compared to even my new soundblaster with 100MB soundfonts..

OR... Try the already great - and will be getting better - GUS emulation that is part of DOSBox! Thanks, canadacow!

Of course, you need to compile the CVS to get it currently - but it should be in the next release...

"I see a little silhouette-o of a man, Scaramouche, Scaramouche, will you
do the Fandango!" - Queen

Stiletto

Reply 24 of 25, by ldaneels

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Hi,
The reason why I asked if it was possible to approximate a 20/33Mhz computer with Dosbox was to evaluate how interesting it would be port Dosbox to the Zodiac handheld. The general idea is that it could go up to 20Mhz full speed & 33Mhz with FS.
At that point, the games I am mostly interested in playing with Dosbox are Ultima 7 & Ultima Underworld 1 & 2 (all the previous ones are emulated perfectly with ST & C64 emus, so I don't need to worry about them). On the original boxes (yep, I still own all the Ultimas - I never could bear to part with them...) it states that a 20Mhz computer is the minimum requirement. Quite honestly I have my doubts the games would run well enough at that speed, that is why I wanted to try for myself, or at least to get an opinion from someone who played the games at these speeds.
Hopefully this clarifies everything. If not, just understand that I have very good (and logical) reasons to want to approximate a 20/33Mhz.

Loic

Reply 25 of 25, by ldaneels

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Oops, I meant to follow up on my original post.
Sorry for the multiple topics.
Could a moderator move this message to "any way to simulate a 20Mhz & a 33Mhz computer ?" ?
Thanks,

Loic