XL Freak Posted November 4, 2023 Share Posted November 4, 2023 On 8/12/2023 at 3:32 PM, scorpio_ny said: As for the board, try looking at sites that cater to Raspberry Pi projects. If your upgrade doesn't need the OS Rom chip, like the Rapidus and the Antonia, you can use the Adaptus board from Lotharek in Poland which mounts the upgrade in the OS Rom socket, and gets the remaining 16 CPU signals it needs from a small ribbon cable going to a male dip socket that plugs in where the CPU was removed from. I am not 100% sure it will work with the Antonia, but it should. I've asked Simius, but haven't heard back yet. Since Lotharek has discontinued (he says out of stock) the Rapidus upgrade, I'm not sure if he'll continue to sell the Adaptus boards. If he isn't going to carry them any longer, I have started developing a similar solution. Quote Link to comment Share on other sites More sharing options...
+scorpio_ny Posted November 4, 2023 Share Posted November 4, 2023 4 hours ago, XL Freak said: If your upgrade doesn't need the OS Rom chip, like the Rapidus and the Antonia, you can use the Adaptus board from Lotharek in Poland which mounts the upgrade in the OS Rom socket, and gets the remaining 16 CPU signals it needs from a small ribbon cable going to a male dip socket that plugs in where the CPU was removed from. I am not 100% sure it will work with the Antonia, but it should. I've asked Simius, but haven't heard back yet. My upgrades in the 600XL are the Antonia and Sophia DVI. Because of of the Antonia, I had removed a bunch of chips that is no longer needed. 4 hours ago, XL Freak said: Since Lotharek has discontinued (he says out of stock) the Rapidus upgrade, I'm not sure if he'll continue to sell the Adaptus boards. If he isn't going to carry them any longer, I have started developing a similar solution. Keep us posted if you do make a new solution! I am always looking forward to makes things neater inside the computer Quote Link to comment Share on other sites More sharing options...
+scorpio_ny Posted November 21, 2023 Share Posted November 21, 2023 Hi @XL Freak, I needed to make another adapter to accommodate an install of an GTIADigitizer in one of my 600XL’s and remembered this thread. Did you have a chance to acquire or make one for your system? Quote Link to comment Share on other sites More sharing options...
XL Freak Posted November 21, 2023 Share Posted November 21, 2023 2 minutes ago, scorpio_ny said: Did you have a chance to acquire or make one for your system? yes, I ordered a cpu extension cable, but the gtia has the same # of pins so it should work. I am going to replace it with a different solution anyway, so pm me if you'd like to buy it. Quote Link to comment Share on other sites More sharing options...
dabone Posted November 22, 2023 Share Posted November 22, 2023 On 1/14/2021 at 1:37 AM, xxl said: the incompatibility issue of 65816 in Antonia or PIA in U1MB can be easily solved: Antonia PCB with 6502 processor ? works great. I tried 2 different 6502s in my Antonia and they didn't boot, is this real or a troll? One 6502 was from a bulk buy I got a ton of chips in, and the other was pulled from a Commodore 1541 floppy drive. Quote Link to comment Share on other sites More sharing options...
Clint Thompson Posted November 23, 2023 Share Posted November 23, 2023 I was just talking to someone about this the other day, regarding 4MB RAM on an A8 and noticed this thread. Since it’s topic appropriate I feel, curious if anyone ever made a demo or game that actually uses the 4MB? Quote Link to comment Share on other sites More sharing options...
Simius Posted November 23, 2023 Share Posted November 23, 2023 15 hours ago, dabone said: I tried 2 different 6502s in my Antonia and they didn't boot, is this real or a troll? One 6502 was from a bulk buy I got a ton of chips in, and the other was pulled from a Commodore 1541 floppy drive. It's real, but it is not the Antonia. It's an old Antonia PCB with special core made on xxl's demand, working with Sally CPU. Quote Link to comment Share on other sites More sharing options...
XL Freak Posted November 23, 2023 Share Posted November 23, 2023 why a Sally? if I were to switch out the 65816, I think I'd try the 65c02 Quote Link to comment Share on other sites More sharing options...
Simius Posted November 23, 2023 Share Posted November 23, 2023 Ask xxl. Quote Link to comment Share on other sites More sharing options...
Peri Noid Posted November 23, 2023 Share Posted November 23, 2023 4 hours ago, Simius said: It's an old Antonia PCB with special core made on xxl's demand, working with Sally CPU. And there's just this one that you did, didn't you? Quote Link to comment Share on other sites More sharing options...
xxl Posted November 23, 2023 Share Posted November 23, 2023 On 1/14/2021 at 7:46 AM, xxl said: I bet that only me: D Quote Link to comment Share on other sites More sharing options...
Simius Posted November 23, 2023 Share Posted November 23, 2023 1 hour ago, Peri Noid said: And there's just this one that you did, didn't Only this one. Quote Link to comment Share on other sites More sharing options...
+slx Posted November 23, 2023 Share Posted November 23, 2023 5 hours ago, XL Freak said: why a Sally? if I were to switch out the 65816, I think I'd try the 65c02 If you are concerned about missing illegal opcodes and 100% compatibility, the 65C02 isn't any better than the 65816. It has a few extra opcodes but should interpret all the illegal opcodes as NOP. Using the new instructions will allow for a bit tighter machine language code. Quote Link to comment Share on other sites More sharing options...
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