Majdachi Posted September 27, 2016 Author Share Posted September 27, 2016 (edited) I'd dream of a Geneve or a 99/8:. There are some BBCs on ebay right now you might want to check... Edited September 27, 2016 by Majdachi Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted September 27, 2016 Share Posted September 27, 2016 I've checked in now and then, but it always comes down to the final price. Finding one in pristine condition, KA-CHING, paying the shipping, KA-CHING, then adding in the power conversion stuff, KA-CHING, and of course the mandatory item, a Retro Clinic Kit, KA-CHING! 1 Quote Link to comment Share on other sites More sharing options...
Asmusr Posted September 27, 2016 Share Posted September 27, 2016 If I was going to get any other computer than the TI... I'd love to give the BBC Microcomputer a good home. Thanks for planting that idea in my mind. 1 Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 27, 2016 Author Share Posted September 27, 2016 (edited) Don't remind me of shipping issues... if the item costs $10 i would need a hundred more to ship it... Edited September 27, 2016 by Majdachi Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 27, 2016 Author Share Posted September 27, 2016 Did anyone try emulating 99/8 or Geneve on Retropie? Any idea if it works? I'm doing well so far with 99/4A on rpi 3b... Quote Link to comment Share on other sites More sharing options...
+mizapf Posted September 27, 2016 Share Posted September 27, 2016 We have good emulations for both in MAME, so nothing for your rpi. :-/ Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 27, 2016 Author Share Posted September 27, 2016 Doesn't MAME work on rpi? Quote Link to comment Share on other sites More sharing options...
+mizapf Posted September 27, 2016 Share Posted September 27, 2016 Performance. I'm running MAME on my Core i7 (already 4 years old, of course), and I'm struggling hard in my code to keep the emulation speed above 100%. The 99/8 eats up lots of performance by the emulation of its custom chips and the big GROM library. I just added a small improvement by turning off the GROM clock when the GROMs are idle, but the MAME benchmark just keeps below 260% (without graphics rendering). With graphics rendering, you will be down to roughly 100%+x. Use the search function of this forum to find some experiments that I did on a Raspi 1 for the TI-99/4A emulation, where the benchmark ended up at about 20%. With graphics, 2-3%. The same benchmark yields some 500% on a PC. That is, with respect to this emulation, the Raspi 1 is about 25 times slower than one core of my PC. The Geneve is better off than the TI-99/8, but also slower than the TI-99/4A. Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 27, 2016 Author Share Posted September 27, 2016 (edited) Ti 99/4A is good so far on rpi 3 model b, no lag/graphics issues on all tested games... will try with MAME and see what happens... and will check your previously made tests on rpi1, thank you for the info:. Edited September 27, 2016 by Majdachi Quote Link to comment Share on other sites More sharing options...
+mizapf Posted September 27, 2016 Share Posted September 27, 2016 Mind that I'm talking about the mainline MAME release, not about some derivatives or ancient releases like advmane. MAME has invested a lot of efforts in cycle-precise emulation - the effect of which is not guaranteed to be perceivable by everyone. Also, there is a huge span of performance requirements between systems inside MAME. I compiled the MAME executable on the Raspi 1 itself, which actually needed 24 hours. Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 28, 2016 Author Share Posted September 28, 2016 Noted, also the first generation of rpi 1 came with single core processor at 500Mhz, 256Mb RAM @ 400Mhz while rpi 3 model b came with Quad core @ 1.2 Ghz, 1Gb RAM @ 900 Mhz, that should give some performance boost regarding the installation of cores... Quote Link to comment Share on other sites More sharing options...
Majdachi Posted September 29, 2016 Author Share Posted September 29, 2016 Camputers Lynx 96K on the way... supposedly boxed with a manual... will post it once received. Some great 'under the radar' systems there. Very nice. Nice to see a Mattel Aquarius in the wild too. All you are missing is a Camputers Lynx. Quote Link to comment Share on other sites More sharing options...
Arnuphis Posted September 30, 2016 Share Posted September 30, 2016 Camputers Lynx 96K on the way... supposedly boxed with a manual... will post it once received. Oh wonderful! I remember drooling over that machine back in the day and always planned to get one but they were short lived sadly. Quote Link to comment Share on other sites More sharing options...
Arnuphis Posted September 30, 2016 Share Posted September 30, 2016 I've checked in now and then, but it always comes down to the final price. Finding one in pristine condition, KA-CHING, paying the shipping, KA-CHING, then adding in the power conversion stuff, KA-CHING, and of course the mandatory item, a Retro Clinic Kit, KA-CHING! Yep the BBC Micro was a great machine. I wrote a student database program on one back at college. Never personally owned one. Sadly for us in the USA getting hold of one is a bit pricey. Might as well go for a BBC Master or Archimedes if you are planning to spend that amount of cash. Maybe the next time I head over the pond to visit the family I will keep an eye out for one and bring it back. 1 Quote Link to comment Share on other sites More sharing options...
Majdachi Posted October 13, 2016 Author Share Posted October 13, 2016 A recent addition to the collection, Camputers Lynx 96K boxed and working. 4 Quote Link to comment Share on other sites More sharing options...
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