42bs Posted March 9 Share Posted March 9 Just like to know, if it is a firmware thing or electrical problem that JagGD cannot work when plugged into the CD unit. Quote Link to comment Share on other sites More sharing options...
+ls650 Posted March 9 Share Posted March 9 The FAQ seems pretty clear that it is a hardware conflict: Question: Does the JagGD work when plugged into the JagCD? Answer: No. It seems the same interrupt lines used by the JagCD for the coming CD emulation feature. Quote Link to comment Share on other sites More sharing options...
42bs Posted March 9 Author Share Posted March 9 (edited) Not really. If the software would ignore the interrupt. Edit: Plus the sentence makes no sense to me. Edited March 9 by 42bs Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted March 9 Share Posted March 9 Just give up the JCD, or are you that hooked on Highlander? 1 2 Quote Link to comment Share on other sites More sharing options...
42bs Posted March 9 Author Share Posted March 9 30 minutes ago, CyranoJ said: Just give up the JCD, or are you that hooked on Highlander? Actually, I never really used it, only for VLM. I think I have only Blue Lightning. It just bugs me. Anyway, switched currently to Lynx development. Lynx needs a quick running STNICCC port 🙂 3 Quote Link to comment Share on other sites More sharing options...
SainT Posted March 9 Share Posted March 9 No, that sentence didn't make much sense. But, no, the interrupts I use for the data transfer from the console to the cart are the same which are used by the CD unit for data transfer. Plugging the cart through the CD unit disconnects the interrupts required and therefore it hangs when trying to do data transfer. It is possible to do a non-interrupt based loader when the CD unit is plugged in, which is quite a bit slower, but it is possible. 1 Quote Link to comment Share on other sites More sharing options...
42bs Posted March 9 Author Share Posted March 9 Ha, this is much clearer, than: 6 hours ago, ls650 said: . It seems the same interrupt lines used by the JagCD for the coming CD emulation feature. 3 minutes ago, SainT said: It is possible to do a non-interrupt based loader when the CD unit is plugged in, which is quite a bit slower, but it is possible. Ok, so there is at least an option. (Some day). Quote Link to comment Share on other sites More sharing options...
SainT Posted March 9 Share Posted March 9 10 minutes ago, 42bs said: Ok, so there is at least an option. (Some day). Yes, I'll be getting back to the JagGD before too long (one the 7800GD is finally out!). 6 1 Quote Link to comment Share on other sites More sharing options...
chris_greece Posted March 12 Share Posted March 12 On 3/9/2023 at 1:55 PM, SainT said: Yes, I'll be getting back to the JagGD before too long (one the 7800GD is finally out!). We need update because we cant play Hover Strike: Unconquered Lands and World Tour Racing 1 Quote Link to comment Share on other sites More sharing options...
SainT Posted March 12 Share Posted March 12 (edited) I am aware, yes. There is no guarantee that either game will ever work on the JagGD, however, but I will be looking into it again. Although this thread has absolutely nothing to do with that, it’s to do with being able to run ROM games on the JagGD while plugged into a CD drive. Edited March 12 by SainT 1 2 Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted March 20 Share Posted March 20 (edited) On 3/9/2023 at 3:38 AM, SainT said: It is possible to do a non-interrupt based loader when the CD unit is plugged in, which is quite a bit slower, but it is possible. FWIW, given how fast ROMs load now, I'd take, say, ~half-quarter speed or so ROM loads/other transfers for the convenience of not having to unplug my JagCD to use the JagGD, potentially with a warning dialog at boot so non-power users understand why it's slow. Not a huge priority, and I bought fully understanding the limitations, so I'm not expecting it or anything, but if there's a list of feature requests that may or may not happen, would be nice if this was on it somewhere. Edit: For some motivation beyond my laziness, there are some things, like developers verifying a final, "encrypted" ROM boots on both the bare Jaguar and a Jaguar CD before building some physical cartridges, @42bs hacking up ever-faster fast-boot headers, etc., where speed is not that important but the functionality the GameDrive provides is better than anything else can do, so this would be a genuinely helpful feature in some niche use cases. Edited March 20 by cubanismo More info. 2 Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted March 20 Share Posted March 20 As long as it is full speed without the CD. I don't want to be stuck in Sinclair C5 mode 2 2 Quote Link to comment Share on other sites More sharing options...
SainT Posted March 20 Share Posted March 20 21 minutes ago, CyranoJ said: As long as it is full speed without the CD. I don't want to be stuck in Sinclair C5 mode Yep, I can detect the CD drive and switch to a software mode. Not sure how slow it will be… 1 Quote Link to comment Share on other sites More sharing options...
42bs Posted March 20 Author Share Posted March 20 1 hour ago, CyranoJ said: As long as it is full speed without the CD. I don't want to be stuck in Sinclair C5 mode As long as it outperforms BJL , I am fine 🙂 3 Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted March 20 Share Posted March 20 7 minutes ago, 42bs said: As long as it outperforms BJL , I am fine 🙂 Assigning $0-$f on the buttons on the controller and typing it in directly is probably quicker than BJL 2 Quote Link to comment Share on other sites More sharing options...
Zerosquare Posted March 20 Share Posted March 20 If I had to choose between using BJL and using the JagCD, I'd choose BJL, no questions asked. 1 Quote Link to comment Share on other sites More sharing options...
doctorclu Posted April 21 Share Posted April 21 When it comes to JagCD support, all I really want is Battlemorph with game save ability. Though other notables would be Maybe Baldies or a a good copy of Soulstar. Quote Link to comment Share on other sites More sharing options...
SainT Posted April 21 Share Posted April 21 I'll be back to working on the Jag in a few weeks. Getty very close to getting the 7800GD out in the wild. Finally. 😆 6 2 Quote Link to comment Share on other sites More sharing options...
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