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Post by bjonte on Apr 20, 2018 6:53:51 GMT
I would be interested to hear any results, but you should test it on a real SuperCPU... Conclusion - all 3 computers were not putting out the necessary 4.95 volts minimum for the SCPU... or... the SCPU is failing! Aw, I'm sad to hear that! |
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Post by robertb on Jun 13, 2018 19:03:01 GMT
I brought over the C128DCR with internally-installed SuperMMU adapter and the SuperCPU 128 to the FCUG meeting on Sunday. No boot-up with the SCPU 128 attached! (snip) Thus, the full test of Tempest will have to wait until then. Ray Carlsen has fixed my C128DCR! It was not the power supply but a faulty cartridge port. I will try Tempest again at this Sunday's FCUG meeting when I bring in the C128DCR. Truly, Robert Bernardo Fresno Commodore User Group - www.dickestel.com/fcug.htmSouthern California Commodore & Amiga Network - www.portcommodore.com/sccanAug. 11-12 Commodore Vegas Expo v14 2018 - www.portcommodore.com/commvex |
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badco
Windows User
Posts: 8 
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Post by badco on Aug 3, 2018 18:32:27 GMT
Interesting find.. the problem with most vector ports to the 64, were that the hardware really just wasn't fast enough to make a great experience in the port... Trying to play star wars on a 64 is painful, especially once you have a good number of objects being rendered on the screen... The 128 does for faster processing and in 80 columns higher fidelity graphics... but pushing bits around in the VDC is not exactly quick....
But if someone is dedicated, this base project could be a decent starting point.
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Post by hydrophilic on Apr 15, 2019 23:34:46 GMT
What? My Tempest port is so awesome that it crashed 3 Commies?
My code employees no hardware tricks, so this is a mystery. Or maybe just bad luck?
-- OR -- I have accidentally discovered a method to brick hardware! This was NOT my intention, but it would be a cool discovery if true...
Seriously -- I probably fouled up the code to invoke SuperCPU... but it should run on stock C128... it works for me...
BTW, my Tempest port will NOT run on C64. It uses MMU banking and page-redirection features only available to C128 (impossible on C64)
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Post by hydrophilic on Jan 16, 2021 10:16:29 GMT
Sorry for reviving an old thread, but TEMPEST is one of my favorites. I've had many ideas to improve my "proof of concept" but -- as you might imagine -- I've been totally distracted from anything CBM-related due to global pandemic = Covid-19. However, I wanted to share with you some videos I found about this arcade classic and retro-engineering...
Part 1
Part 2
Part 3
Part 4
Part 5
[VAPORWARE = Promised in part 4 but never published!]
Although "Dave", a Micro$oft employee, explains many things, none of them are C128-specific. But he explains the general idea of reverse-engineering TEMPEST much like I did for the C128.
Anyway, I hope you find his videos informative or entertaining. With any luck I'll be able to produce a version of TEMPEST that runs in real time on C128... maybe even C64...
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