SainT Posted August 24, 2017 Author Share Posted August 24, 2017 How come people don't use the GCC suite including linker for the Jag? I'm not sure why RLN is needed when we have LD (and yes, I have added the RISC word swap relocation to LD), but RMAC is essential of course. Is there something I'm missing? Quote Link to comment Share on other sites More sharing options...
Stage_1_Boss Posted August 24, 2017 Share Posted August 24, 2017 Features? 1 Quote Link to comment Share on other sites More sharing options...
SainT Posted August 24, 2017 Author Share Posted August 24, 2017 How come people don't use the GCC suite including linker for the Jag? I'm not sure why RLN is needed when we have LD (and yes, I have added the RISC word swap relocation to LD), but RMAC is essential of course. Is there something I'm missing? The only issue I can see, which is irritating, is that the a.out versions of GCC using the BSD object format don't have the ability to specify an alignment for a segment. This largely doesn't matter as any specific variables which need phrase alignment etc... are likely to be handled by assembler code anyway. But its still irritating. If you have any q/d/phrase alignment in a source file it should be respected by the segment. As RMAC supports ELF it would probably be better to switch to the ELF build of GCC... I think I'll give that a try soon. Although, I do have a working GCC toolchain! So that's a start. Quote Link to comment Share on other sites More sharing options...
Zerosquare Posted August 24, 2017 Share Posted August 24, 2017 (edited) I'm not sure why RLN is needed when we have LDRLN is lightweight, simple, and backwards compatible with ALN (which has been used since the very beginning of Jaguar homebrew development, 20 years ago). Unless you're using the GCC compiler, what would be the point of switching to ld? As for using GCC itself - some people do/did, but it never got much traction. One reason is that it can't generate code for the GPU and the DSP. The other reason is that older developers didn't mind having to use assembler that much, and now those who prefer easier tools can use rB+. Edited August 24, 2017 by Zerosquare 3 Quote Link to comment Share on other sites More sharing options...
SainT Posted August 26, 2017 Author Share Posted August 26, 2017 Ok, I'm happy now. I have m68k-unknown-elf built with an added R_68K_JAG_RISC relocation for the word swap. I've modified RMAC to output R_68K_JAG_RISC for the specific RISC relocations and LD picks this up correctly. RMAC has also been modified to record the largest alignment during compilation for each section and output this correctly in the ELF section header, which is how it should be done. This results in a nice stable toolchain which always aligns correctly -- I had lots of weird crashes initially due to misaligned data, which took me a while to realise. To be fair, I'm not sure if this is any better than GCC / RMAC / VLINK, however I know if I want to use libraries or anything else the GCC bintools can offer, it's all there. Well that was a fun aside while waiting for the new PCB's to arrive, I've been meaning to do that for ages. 5 Quote Link to comment Share on other sites More sharing options...
+Saturn Posted August 26, 2017 Share Posted August 26, 2017 You rock. Just know I'm setting aside stupid amounts of money for when this is released Quote Link to comment Share on other sites More sharing options...
+atari2600land Posted August 26, 2017 Share Posted August 26, 2017 I want one. I can't wait to see what my game looks like on a real Jaguar. Quote Link to comment Share on other sites More sharing options...
LianneJaguar64 Posted August 26, 2017 Share Posted August 26, 2017 In just to play Battlesphere XD Quote Link to comment Share on other sites More sharing options...
Krip316 Posted August 26, 2017 Share Posted August 26, 2017 Don't start people! There is no list as clearly stated in the first post, "There are no pre-order lists or anything like that, and I will ask for posts relating to this to be removed as it's just way too early. However if anyone wants to ask any questions, or if I have any progress updates, this thread is a good place for them." Some of us get notifications and don't need you blowing up our phones/computers because you failed to read the first post. 1 Quote Link to comment Share on other sites More sharing options...
+atari2600land Posted August 26, 2017 Share Posted August 26, 2017 I know, sorry. I guess my last post could have been taken as though I'd like to buy one, but I know it's not ready yet. Quote Link to comment Share on other sites More sharing options...
Krip316 Posted August 26, 2017 Share Posted August 26, 2017 I know, sorry. I guess my last post could have been taken as though I'd like to buy one, but I know it's not ready yet. It's all good. It's just once somebody posts that, then there's a billion followers who frankly don't care. I just wanted to stop it before it got outta hand. Quote Link to comment Share on other sites More sharing options...
moggsie Posted August 27, 2017 Share Posted August 27, 2017 All good stuff SainT. Take your time though. I need to raise money for this and the NeoGeo SD cart. This hobby isn't for the light of wallet. Quote Link to comment Share on other sites More sharing options...
SainT Posted September 1, 2017 Author Share Posted September 1, 2017 Hurrah, new PCB's received and have built one up enough to boot from the flash again. Yay, I'm back to where I was, but this time with no bodge wires! Now though hopefully I'll be able to get much further. More updates soon. 16 Quote Link to comment Share on other sites More sharing options...
falconsfan79 Posted September 1, 2017 Share Posted September 1, 2017 Hurrah, new PCB's received and have built one up enough to boot from the flash again. Yay, I'm back to where I was, but this time with no bodge wires! Now though hopefully I'll be able to get much further. More updates soon. Nice to hear Saint... looking forward to hearing more. Keep up the great work. Quote Link to comment Share on other sites More sharing options...
Glen's Retro Show Posted September 1, 2017 Share Posted September 1, 2017 Awesome Saint Quote Link to comment Share on other sites More sharing options...
XC-3730C Posted September 1, 2017 Share Posted September 1, 2017 I'm looking forward to this. My Jaguar + JagCD needs some love! Quote Link to comment Share on other sites More sharing options...
Hastor Posted September 1, 2017 Share Posted September 1, 2017 I'm looking forward to this. My Jaguar + JagCD needs some love! If I understand what this cart will likely be able to do, your JagCD itself may never see love again (which means it will stay in working condition for much longer). I never had a JagCD, so I'm hoping this will open that world up to me as well. Quote Link to comment Share on other sites More sharing options...
ccordial Posted September 2, 2017 Share Posted September 2, 2017 There is a project to make JagCD's run off cartridge memory, its not 100% but something like this will give it a place to shine. Also +1 for interest. Great work Saint Quote Link to comment Share on other sites More sharing options...
Bratwurst Posted September 2, 2017 Share Posted September 2, 2017 Will the circuitboard design be conducive to installing it inside of an injection molded Jaguar cartridge shell, or will it be exclusively made for / sold with a 3D printed case? With the cartridge shells available now, especially the clear ones and potentially other colors, I know what I'd prefer, even if I had to cut out a slot for the SD card. Also will it use SRAM or flash? 1 Quote Link to comment Share on other sites More sharing options...
JagChris Posted September 2, 2017 Share Posted September 2, 2017 Will the circuitboard design be conducive to installing it inside of an injection molded Jaguar cartridge shell, or will it be exclusively made for / sold with a 3D printed case? With the cartridge shells available now, especially the clear ones and potentially other colors, I know what I'd prefer, even if I had to cut out a slot for the SD card. Also will it use SRAM or flash? These questions answered earlier. Quote Link to comment Share on other sites More sharing options...
Bratwurst Posted September 2, 2017 Share Posted September 2, 2017 (edited) These questions answered earlier. Where? If you know the answers, why not reiterate them instead of expecting someone to wade through 28 pages of me-too posts? Edited September 2, 2017 by Bratwurst Quote Link to comment Share on other sites More sharing options...
The Yar Posted September 2, 2017 Share Posted September 2, 2017 Where? If you know the answers, why not reiterate them instead of expecting someone to wade through 28 pages of me-too posts? My guess is because he/she had greater interest in this post/project than the person who can't be bothered to "wade through" previous posts. If you were as pumped about it as they were, you wouldn't complain about reading up on it. As it is, it is bothersome to get notifications of new posts only to find they are questions on things that have already been answered. 5 Quote Link to comment Share on other sites More sharing options...
grimm Posted September 2, 2017 Share Posted September 2, 2017 Where? If you know the answers, why not reiterate them instead of expecting someone to wade through 28 pages of me-too posts? Sadly thats not how this subforum works. Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted September 2, 2017 Share Posted September 2, 2017 Sadly thats not how this subforum works. Because google. And search. And sorry for making this thread update again. 2 Quote Link to comment Share on other sites More sharing options...
Bratwurst Posted September 2, 2017 Share Posted September 2, 2017 My guess is because he/she had greater interest in this post/project than the person who can't be bothered to "wade through" previous posts. If you were as pumped about it as they were, you wouldn't complain about reading up on it. As it is, it is bothersome to get notifications of new posts only to find they are questions on things that have already been answered. Amusing that you'd take umbrage with me asking a question that'd dredge latent info back to the surface, and not the monotony of people posting their enthusiasm without really contributing anything. If you're subbed to this thread that's the majority of the notifications you're getting bothered with. Not that I'm gonna discourage folk because it's an exciting product, just if I know something pertinent and someone asks, I'm generally not going to keep them in the dark. Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.