maybe the detection stops at 300 as it finds there and doesn't go further.
what happens if mpu-401 port is lower than sb's port?

maybe that's the case... I tested today with only the mpu401at connected and I get music... I wouldn't like to have roland@300 and sb16@330 since it will affect 99% of the roland games... maybe the cd-rom version I have is upgraded or something, I'll test it later as I forgot I had it 🤣 🤣 🤣

and a bit OT, I can't seem to find info on that Titus collection, I am missing vol4 of the 5 ... searching for it but no luck so far...

i wasn't suggesting that as a solution but as a testing case, for further investigation, so i still wonder if it will work that way.

Hmmm...odd, that a program should try to detect a Roland sound option at port 300. I wonder if there are other games that do this or this is an isolated one.

may be taken from for example "set blaster" setting and that one tells 300 i guess. but has to be tested first to tell anythiing 😀

I did test with no SB16 variables/init stuff, it still bangs port300 and plays through sb-mpu... will test robertmo's port theory so we know the deal

it's checking port 300 first and then 330.
it doesn't check 330 if something responds on port 300 in the "right" way.
to change that behavior requires that someone writes a program to intercept the access (edit: like the included one).

Keropi have you played around with JUST a Sound Blaster on 330 and using that new TSR utility to emulate intelligent mode?

@peterferrie
thanks for that! will try in on my DOS machine and report back

@Mau1wurf1977
I don't think it's an intelligent mode issue (after all I use a mpu401) , music works fine but through the DB-50XG, as you can imagine it does not sound that good 🤣

Sorry I didn't express myself well. Remove the MPU and set the Sound Blaster 16 to 330. And become a beta tester for that TSR programs. What games work and just test as many games as you can 😀

ah you mean connect the cm-32L on the sb16? I need to get a cable for that... 😀

keropi wrote:

ah you mean connect the cm-32L on the sb16? I need to get a cable for that... 😀

Yea! They are available for little money on eBay. I will also test compatibility soon with an AWE64 GOLD. Could be a good combination.

@peterferrie

just tested your fix and it works great on my p1 DOS build, thanks for making it!!!

edit:
As a sidenote the cd-rom version I have is pure crap. The games don't run on my p1 build even with L1 cache disabled. There is a crappy loader that loads the games executables that are not SQZ files. I believe the loader just fails to do it's job and you get dumped to DOS....
It's a shame really because I have to revert to other means of playing the games on the collection cds 🙁 , 8 unusable games sharing the same crappy loader and all of them work if you try non-loader versions.... bah

Yes, that new loader has serious issues. I can't see how it ever worked.
I'll see about unpacking the files instead.

^ now that you mention it I could not even make the games run on my 386sx IBM PS1... :\
hope you succeed in unpacking them!

Here's the unpacked loader. It can run from hard disk.
If you copy the CDs to the HD, you can copy this file over cdrun.com and you don't need to change anything else.

@peterferrie

you Sir are a saint, you effectively rendered an almost non-working games collection to a working one!
thanks a mil for that, I'll check it later and report back!

edit: tested and working perfect on a 486/66 build! thanks again! 😊

I have the exact same problem. How would I be able to run PREHISFX.COM with the CD-version? It looks by the source of PREHISFX.ASM that it is for the floppy-version, since it looks for PREHISTO.COM. Any help appreciated!