it often crashes in the rerun of the course sunbeach hill

Dragonmaster (and maybe anyone having crash problems in MC): maybe i've found the source of the problem. Could you please try the following:

- After starting Magic Carpet, change the Sound Card to "Sound Blaster Compatible", and the Music Card to "General MIDI" (btw, which sound settings did you use for your previous tests?).
- Set cycles to around 40.000, core to dynamic (it would be interesting with which cycles setting you had your crashes)

Try playing the game. For my tests, i've used "ems=false" and "umb=false", but these settings seem to have nothing to do with the crashes. I did my tests with DOS32A (latest version) instead of the original DOS4GW. MC runs much smoother when using DOS32A.

With the above settings, i was able to play 4 or 5 maps without a single crash.

Before, i was using "SB16" for sound. With these settings, and with DOS32A, i got crashes every few minutes (in low resolution mode). I believe the crashes are related to the "SB16"-setting of MC.

Maybe you should try changing the soundcard for Screamer, too (i don't have this game here for testing).

And, to make that clear: i'm talking about MC1 here. MC2 is a different topic.

BTW: DOSFreak seems to be right about MC2 being an unstable game. Wikipedia says: "Magic Carpet 2 was rushed to completion by EA in order to make the holiday season and the release shipped with many bugs including a fatal bug that often caused the game to crash. This fallout prompted Bullfrog designer Peter Molyneux to part ways with EA.".

for screamer i think it isnt the case because, i have tested even without soundcard and the crashes seems to be still there.

For magic Carpet 2, the bug is only present with highres not with lowres, so I dont think its caused by the game, but it could be

I got it crashing with lowres as well
We are still investigating. It is hard to figure out why it breaks.

The more videodetails are shown the higher the resolution is the more crashes the dynamic core, so it seems that the bug in the dyncore effects the emulation of the videorendering, it has nothing to do with the audioemulation

And i know that the bug was already present before the dyncoreoptimazion

And i know that the bug was already present before the dyncoreoptimazion

What is the earliest that shows the bug and what the latest that
runs fine for you?

i think the bug was present since the very beginning: since the dyncore supports screamer imo, but i ll test older version for you

<Sigh>.... This is starting to be a hodge-podge of rather undefined information. Is this thread about MC1? MC2? Screamer? Dyncore bugs? Re-Programming MC2 in order to get it bugfree? I'm confused.

Dragonmaster, are you able to actually test the things i described in my previous message? Just saying "it has nothing to do with audioemulation" is not exactly helpful.

I'll write it again, slowly: my crash probs with MC1 are nearly gone after changing MC's soundcard setting. I've tested this over several hours, with different versions of DOSBox.

OK, and to complete the confusion: i've just tested Screamer (installed from CD) with different builds of DOSBox. The first three tracks (the ones that are available from the start) ran without problems, i completed several races on each track in VGA and SVGA mode. I even tried using DOS32A, and had no troubles at all.

But on the track "SunBeach Hill", DOSBox will crash very often. These crashes "feel" different to the ones i'm seeing (or saw, to be precise) in MC. The crashes are so "hard" that i need to close DOSBox with the task manager most of the time. The crashes occur with the original DOS4GW. The Screamer problem happens with the special RC build i got for testing, too - even when the sound is completely disabled via Screamers setup app.

IMHO, the Screamer problem is different from the MC problem, though the logfile output looks kinda similar in both cases. My tests were not very extensive, maybe dragonmaster can provide more details.

in 0.62 it crash short after the beginning of the race with ab pachalyte? failure or so

You shouldn't post in a forum after drinking alcohol. 😀

I tested screamer with the aep cvs from 22.02. after the stonekeep fix, but it still crashes only the error message has changes a bit , now it says: DYNX86:Can't run code in this page and the usally illegal reads and writes

2nd crash error message: Exit to error: INT:Gate Selector points to illegal descriptor with type 0

Bad news Stonekeep still crashes with dyncore 😵

Hmm Stonekeep is working for me just fine now.

Well i found/fixed the bug that kept it crashing randomly, but there
seems to be something else just happening much more rarely
(when going down the stairs). No idea when that happens though.
Yet it is quite playable for me.

it crashs often when you meet somebody or fight sombody

when it crashs, there is a horrible sound going on 🙄 , it doesnt crash dosbox per se but it crashs back to normal dos with a loud beep

this bug may be rare, but it happens much to often for playing stonekeep enjoyably