TailChao Posted April 28, 2021 Share Posted April 28, 2021 ...and the undocumented has been documented. Mystery solved! Some of the chosen allocation is definitely suspect here, including the configuration registers. Generally I'd advise more hesitance when placing things in the lower address space (or just not do it at all) - but at least the manual is thorough enough to know what to avoid and (possibly) emulate the Cuttle Cart II and its quirks later. 2 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted April 28, 2021 Share Posted April 28, 2021 Sorry - for some reason I wasn't being alerted to the responses here like the other threads I'm in. Yep, that seems to have worked. Regarding the battery, with my *second* unit that I just modded I had to re-do the CCII settings when the menu failed. But not with the first. I'm still curious to know why that first unit worked fine after giving it time to warm up. Quote Link to comment Share on other sites More sharing options...
RevEng Posted April 28, 2021 Share Posted April 28, 2021 1 hour ago, PacManPlus said: I'm still curious to know why that first unit worked fine after giving it time to warm up. I think the question can be equally framed as "why didn't the CC2 respond to $800-$FFF after warm-up?" on your first unit. Best guess is it's along the lines of @tep392's versa problem, with timing of some signal on the device being near some edge case. The warm-up seems to push the unit into not-working side of the edge case. 1 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted May 28, 2021 Share Posted May 28, 2021 (edited) Hey Guys: I did not forget about this; I'm actually still working on the game to be played when no cartridge is inserted. Edited May 28, 2021 by PacManPlus 5 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted June 15, 2021 Share Posted June 15, 2021 (edited) Here's a sneak peek at some screenshots of the game that plays when no cartridge is inserted. I'm now at the point that I've run out of room to fit a few more features in, but I'm working on it. Please remember that this will be an 8K game, so it won't be as 'involved' as some other ones: Hope this one turns out ok. I will give it to @ZeroPage Homebrew to review once finished. It will be exclusive only to this BIOS. Thanks, guys Edited June 15, 2021 by PacManPlus 18 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted June 15, 2021 Share Posted June 15, 2021 5 hours ago, PacManPlus said: Here's a sneak peek at some screenshots of the game that plays when no cartridge is inserted. I'm now at the point that I've run out of room to fit a few more features in, but I'm working on it. Please remember that this will be an 8K game, so it won't be as 'involved' as some other ones: Hope this one turns out ok. I will give it to @ZeroPage Homebrew to review once finished. It will be exclusive only to this BIOS. Thanks, guys Looks great @PacManPlus and I can't wait to play it on the ZPH stream! Looks like a really fun port/adaption! Is there room to use the AtariVox for the voice in the game? - James 1 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted June 15, 2021 Share Posted June 15, 2021 Thank you James ? Unfortunately, no room for AtariVox. I'm actually out of space now, and I need to put a few more things in the game. Need to make room... 1 Quote Link to comment Share on other sites More sharing options...
+sramirez2008 Posted June 15, 2021 Share Posted June 15, 2021 Wow! That looks great. The red/blue enemies on the first couple screenshots look verctorish too. Very exciting. Thanks for making this. 1 Quote Link to comment Share on other sites More sharing options...
+TrekMD Posted June 15, 2021 Share Posted June 15, 2021 That looks awesome! 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted June 15, 2021 Share Posted June 15, 2021 @PacManPlus - My 7800 is ready !! 1 Quote Link to comment Share on other sites More sharing options...
juansolo Posted June 16, 2021 Share Posted June 16, 2021 7 hours ago, -^CrossBow^- said: @PacManPlus - My 7800 is ready !! Likewise my new NTSC machine is also. 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted June 21, 2021 Share Posted June 21, 2021 ZeroPage Homebrew is playing the Exclusive World Premiere of new 7800 BIOS upgrade game KiloParsec on tomorrow's (Tue Jun 22, 2021) stream LIVE on Twitch at 6PM PT | 9PM ET | 1AM GMT+1Day! Hope everyone can watch! ZPH Twitch Stream: https://www.twitch.tv/zeropagehomebrew/ Games: KiloParsec (Exclusive World Premiere | 7800) by Bob DeCrescenzo @PacManPlus and Mike Saarna @RevEng Cosmic Canyon (2021) by Ric Pryor @KaeruYojimbo Words Game (2021 WIP) by Alberto @jab Dragon Defence (2015) by Tyler Frisbee @Tyler Frisbee 4 1 Quote Link to comment Share on other sites More sharing options...
mdoerty Posted June 21, 2021 Share Posted June 21, 2021 Where will we be able to buy this new BIOS? And will someone be running an installation service for those of us who are technically deficit? 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted June 22, 2021 Share Posted June 22, 2021 26 minutes ago, mdoerty said: Where will we be able to buy this new BIOS? And will someone be running an installation service for those of us who are technically deficit? I'm sure I will offer this along with several others. I've done other BIOS swaps on the 7800 in the past (Not this exact one of course), but I would imagine the process will be the same as others. I'm sure @PacManPlus can elaborate on that more. 3 1 Quote Link to comment Share on other sites More sharing options...
+sramirez2008 Posted June 22, 2021 Share Posted June 22, 2021 3 minutes ago, -^CrossBow^- said: I'm sure I will offer this along with several others. I've done other BIOS swaps on the 7800 in the past (Not this exact one of course), but I would imagine the process will be the same as others. I'm sure @PacManPlus can elaborate on that more. My 7800 is in on its way to you.? 2 Quote Link to comment Share on other sites More sharing options...
juansolo Posted June 22, 2021 Share Posted June 22, 2021 I'd be happy to do it for people in the UK (I can't imagine there'd be many...), depending on availability and what have you. I'll certainly be doing my own regardless. 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted June 22, 2021 Share Posted June 22, 2021 To be clear, I can offer the installation but I can't offer making the BIOS ROM chips as I haven't an eprom burner of my own. Just never really had a need for one and I really don't see myself buying one for the few of these that I would likely get tasked with doing. Assuming the actual installation is about the same, I'm sure this will be a mostly kit parts cost + return shipping type of pricing for most. 2 Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted June 22, 2021 Share Posted June 22, 2021 EPROM burner? ✅ Soldering iron? ✅ Inability to avoid tinkering with a working system? ✅ Where do I sign up? 2 3 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted June 22, 2021 Share Posted June 22, 2021 36 minutes ago, DrVenkman said: EPROM burner? ✅ Soldering iron? ✅ Inability to avoid tinkering with a working system? ✅ Where do I sign up? Guess well send them all to you then. Again, I've only had need for an eprom burner like 3x ever in the past 20 years so it isn't something I've bothered getting. Having said that, the 3x I needed one I either found someone to burn the chips for me I needed, or was able to borrow a burner long enough for the job I needed it for. 1 Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted June 22, 2021 Share Posted June 22, 2021 24 minutes ago, -^CrossBow^- said: Guess well send them all to you then. LOL, no. I just muck about in the guts of my own systems or rarely helping out a local retro-pal (pre-COVID). I bought the EPROM burner for the 576NUC+ beta team project, so I could write my own OS EPROMs, MMU and EMMU GAL chips, etc. I have since used it to put Altirra BASIC inside a 600XL and a couple other miscellaneous hobby projects. Of which this sounds like a great example. 1 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted June 22, 2021 Share Posted June 22, 2021 Hi guys: I'm not sure about how this is going to work out, need to talk with @RevEng to see what he agrees upon. The BIOS+Game will be open source, but as far as burning EPROMS, I could probably take care of that end of it. 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted June 22, 2021 Share Posted June 22, 2021 15 minutes ago, PacManPlus said: Hi guys: I'm not sure about how this is going to work out, need to talk with @RevEng to see what he agrees upon. The BIOS+Game will be open source, but as far as burning EPROMS, I could probably take care of that end of it. I figured it could be offered as a kit through AA similar to the pause mod kits for the 2600? Al has the ability to make the ROMs provided he has the chips. Could also perhaps reach out to TBA as they currently make and sell the PAL/NTSC Asteroids BIOS kits now. 1 Quote Link to comment Share on other sites More sharing options...
juansolo Posted June 22, 2021 Share Posted June 22, 2021 2 hours ago, PacManPlus said: I'm not sure about how this is going to work out, need to talk with @RevEng to see what he agrees upon. The BIOS+Game will be open source, but as far as burning EPROMS, I could probably take care of that end of it. That would be marvellous. The last time I touched an EPROM burner was about 30 years ago... I just haven't had need for one. Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted June 23, 2021 Share Posted June 23, 2021 (edited) Thanks so much guys - that was fun to watch. Now to figure out: - Why the cavern closes up (it doesn't in emulation) - Why the second player starts off in a random wave within the level. BTW, during the show there seems to be a delay between when I type something and when it appears on screen... so if I seem to take a long time to reply, that is why. EDIT - Fun fact: If they would have made it through the collapsed cave somehow, the game would have crashed. Edited June 23, 2021 by PacManPlus 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted June 23, 2021 Share Posted June 23, 2021 1 hour ago, PacManPlus said: Thanks so much guys - that was fun to watch. You're so welcome! KiloParsec was a TON of fun to play and definitely a good challenge, especially on the non-easy setting. Thank you once again for letting us debut it on the show, it's going to be a great 'pack-in' game for the new 7800 BIOS chips! 1 hour ago, PacManPlus said: Now to figure out: - Why the cavern closes up (it doesn't in emulation) - Why the second player starts off in a random wave within the level. If you need further off-line testing let me know, especially if the issue is console revision dependent. 1 hour ago, PacManPlus said: BTW, during the show there seems to be a delay between when I type something and when it appears on screen... so if I seem to take a long time to reply, that is why. EDIT - Fun fact: If they would have made it through the collapsed cave somehow, the game would have crashed. Uh-oh, guaranteed death no matter how skilled I was!! Hahah. - James Quote Link to comment Share on other sites More sharing options...
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