Reply 40 of 121, by voodoo5_6k
nice Idea for the jumpers. I like it.
Thanks! It becomes really handy once you start experimenting with the CPU settings and by the same time want to have a clean desk. And it is really fast now, just a matter of a few seconds to change the CPU configuration.
I am just reporting back in from my first testing session this weekend. And it looks good! 😀
But first, what did I do? I wanted to rule out incompatibilities etc. between the games and the stuff I've been loading for DOS to keep a very low memory footprint. So I simply reinstalled DOS 6.22 and just used what is there by default. I have added lines for EMM386 and the CD-ROM driver, as well as the mouse driver. I have installed the AWE64G drivers and configured the card. Then I have optimized the config.sys and autoexec.bat, without loading anything "modern" or special from 3rd parties. The result is this:
Then I disabled the L1 cache and tested Sam & Max again, and everything worked, no system freeze.
Next was Day Of The Tentacle, and now it worked too. I fired up Monkey Island 1 & 2, and they worked flawlessly. Indiana Jones And The Fate Of Atlantis too, MIDI and SFX + speech, all working. That's really great news for me 😀
Now I can move on to identify the best CPU settings for DOS (the fastest settings on which everything still works). If everything works with a single CPU setting (e.g. Pentium MMX @133MHz), and the rest can be dealt with by disabling the L1 cache in addition, that would be really cool. Then I would just have to change the CPU settings to "DOS" if I wanted to play in DOS, and back to normal (233MHz) when booting into Windows 95. Not too complicated. If I can keep the system bus frequency @66MHz (it worked for now), then I just have to toggle one or two switches to change the CPU internal multiplier.
I still have to test a few more games under DOS but those weren't exactly troublemakers in the past (Monkey Island 1 CD-ROM, Full Throttle, The Dig). Maybe I can get through the DOS testing this weekend. That would be great. I could then aim for reinstalling Windows 95 and setting that up on the next weekend.
- - System bus @66MHz
- CPU internal multiplier @2.0
- CPU clock rate @133MHz
Test results (MS-DOS 6.22):
- + The Secret Of Monkey Island (EGA): Soundeffects (AWE64G) + MIDI (CM-32L) working
- The Secret Of Monkey Island (CD-ROM): TBD
+ Monkey Island 2: Soundeffects (AWE64G) + MIDI (CM-32L) working
+ Indiana Jones And The Fate Of Atlantis: Soundeffects & speech (AWE64G) + MIDI & special soundeffects (CM32L) working
+ Day Of The Tentacle: Soundeffects & speech (AWE64G) + MIDI & special soundeffects (CM-32L) working
+ Sam & Max Hit The Road: Soundeffects & speech (AWE64G) + General MIDI (SC-55) working (with L1 cache disabled only)
- Full Throttle: TBD
- The Dig: TBD