doctorclu Posted January 3, 2017 Author Share Posted January 3, 2017 Does that same happen for the Kool Aid Man Hack that fixed the glitch when Stella was a young'un? That controls work with that hack. Don't know what is going on but the character moves all directions. (Adding that to the compatibility list.) OH YEAH!! Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 4, 2017 Share Posted January 4, 2017 (edited) It was one of the tougher issues for Stella to emulate. Not surprising the portable has problems with it. BTW how does the Star Raiders prototype fare in the production model? Pushed downward as well? http://www.atariprotos.com/2600/software/starraiders/strr.htm StarRaiders(Prototype).zip Edited January 4, 2017 by Nukey Shay Quote Link to comment Share on other sites More sharing options...
doctorclu Posted January 4, 2017 Author Share Posted January 4, 2017 Just tried it out, the effect is the same. On the pre-production model you see about 2/3rd of the control bar on the bottom. On the production bar you don't see the control bar. (Just like the other version we've been playing.) BTW, thanks for switching the controls over on the prototype model. Will make a good casual shooter without having to warp around. Quote Link to comment Share on other sites More sharing options...
KevinMos3 Posted January 5, 2017 Share Posted January 5, 2017 I tried both Kool Aid Man ROMs listed here at AA (NTSC & PAL) and both are not playable on my "Production" model. Yes, you have to hit the game reset button to start the game on real hardware, but if you hit the reset button on the portable, it goes to the Kool Aid Man crashing into the wall scene. Once the game starts, Kool Aid Man is stuck in the upper left hand corner and is not playable. Kevin, is yours a "Pre-Production" model? Maybe that's why it works on yours? No, mine is a production model, but with the screen swapped out from a Genesis portable. It looks to me like the same screen was used in the Genesis portable as in the pre-production Atari portables, and yes, the screens are interchangeable (as mine demonstrates). However, I have the same screen migration issues with the larger screen as with the smaller production screen. We need someone who has both models to compare the PCBs, as I suspect they were changed. It could be a software change, but I'm guessing there's a hardware change that if we can spot, perhaps we can modify to be like the pre-production models for better compatibility. Does that same happen for the Kool Aid Man Hack that fixed the glitch when Stella was a young'un? I just ran a compare of that hack with the ROM that was on my SD card, and they are the same. I may have unknowingly picked up that ROM in the past, but I could have sworn it was the one from the ROM pack uploaded by DoctorClu in the other Flashback Portable thread. Anyway, that ROM works. Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 5, 2017 Share Posted January 5, 2017 BTW, thanks for switching the controls over on the prototype model. The prototype ROM was not altered. It doesn't do multiple checks of SWCHA...so no gripes from the portable's Dpad. No clue why the programmer intentionally made the routine worse for the release version :-/ Quote Link to comment Share on other sites More sharing options...
Asaki Posted January 5, 2017 Share Posted January 5, 2017 (edited) Weird about the screen issues...I was playing yesterday and noticed some games are kind of bad. The title screens for Winter and Summer Games are really low, and they bounce around a bit...seems like they get better once the game starts, though. Does that same happen for the Kool Aid Man Hack that fixed the glitch when Stella was a young'un? Were there other hacks like that? Might come in handy. Edited January 5, 2017 by Asaki Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 5, 2017 Share Posted January 5, 2017 Before I go moving stuff around, maybe just replacing the sync with a more-generic version? Any change here? StarRaiders(NoKeypad).bin 4 Quote Link to comment Share on other sites More sharing options...
doctorclu Posted January 5, 2017 Author Share Posted January 5, 2017 Amazing! Pre-Production: Production: Nice work! What did you do? 2 Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 6, 2017 Share Posted January 6, 2017 Remembering what was said in early emulation...what works there doesn't necessarily work on real hardware (i.e. you must unlearn). BTW that one probably won't work on an actual console. 1 Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 6, 2017 Share Posted January 6, 2017 It's vblank. For whatever reason, the portable doesn't like it. Quote Link to comment Share on other sites More sharing options...
KevinMos3 Posted January 6, 2017 Share Posted January 6, 2017 That's awesome. Do you think the same/similar thing could help other games with that issue, like Tapper, Enduro, etc.? Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 6, 2017 Share Posted January 6, 2017 Yup...if that's the only issue (there were two here). Quote Link to comment Share on other sites More sharing options...
doctorclu Posted January 6, 2017 Author Share Posted January 6, 2017 Remembering what was said in early emulation...what works there doesn't necessarily work on real hardware (i.e. you must unlearn). BTW that one probably won't work on an actual console. It's vblank. For whatever reason, the portable doesn't like it. You were thinking it was the vblank I remember that from earlier. If you don't mind, did you have to adjust the vblank or just substitute other code to do what the vblank would do? That's awesome. Do you think the same/similar thing could help other games with that issue, like Tapper, Enduro, etc.? Yup...if that's the only issue (there were two here). Poor Tapper, was playing that last night. You can see the heads of the people on the bottom bar but that's about it. I played the game anyway since Tapper is fun, but just hoped no one on the lower bar sent back a mug. Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 6, 2017 Share Posted January 6, 2017 The hack is setting/clearing VSYNC in one go -without- VBLANK being used at all. ;original game: ;LF159: ; ldx INTIM ;4 ; bne LF159 ;2 ;LF15E: ; dex ;2 ; lda #$38 ;2 ; sta WSYNC ;3 ; stx VBLANK;3 ; stx VSYNC ;3 ; sta TIM64T;4 ;hack: LF159: ldy INTIM ;4 bne LF159 ;2 LF15E: ldx #$02 ;2 lda #$38 ;2 sta WSYNC ;3 stx VSYNC ;3 sta WSYNC ;3 sta WSYNC ;3 sta WSYNC ;3 sty VSYNC ;3 sta TIM64T;4 LF1BB: ldx #$00 ;2 ;3 removed instructions... ; sta WSYNC ;3 ; stx VBLANK;3 ; stx VSYNC ;3This put the scanline count at 265, so I bumped the timer value down a little to get back to 262. 1 Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 6, 2017 Share Posted January 6, 2017 try it Tapper(NoVBLANK).bin 2 Quote Link to comment Share on other sites More sharing options...
doctorclu Posted January 6, 2017 Author Share Posted January 6, 2017 Much better. Definitely better than what it was. If I had to be critical I say the display could be lowered just a tad to show the 1/3rd portion of the score missing at the top. Quote Link to comment Share on other sites More sharing options...
+LS650 Posted January 6, 2017 Share Posted January 6, 2017 I'll have to check this out when I get home tonight... Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 7, 2017 Share Posted January 7, 2017 Sho'nuf. Regular and Alex_79's beer versions. Might need to start labeling these as "portable" as skipping VBLANK will cause rolling problems on televisions. Tapper(Portable).bin BudTapper(Portable).bin 5 Quote Link to comment Share on other sites More sharing options...
doctorclu Posted January 7, 2017 Author Share Posted January 7, 2017 Bud-Tapper Tapper Looks like you nailed it. So was that just an adjustment of the scan-line? 2 Quote Link to comment Share on other sites More sharing options...
xybot67 Posted January 7, 2017 Share Posted January 7, 2017 Thanks Nukey, I was so disappointed with the original rom not being playable. Quote Link to comment Share on other sites More sharing options...
atarifan88 Posted January 7, 2017 Share Posted January 7, 2017 Can anyone tell me if Defender 2 fixable? Quote Link to comment Share on other sites More sharing options...
+LS650 Posted January 7, 2017 Share Posted January 7, 2017 Just tried out 'Tapper' - it works great now on my AFP. Thanks! 1 Quote Link to comment Share on other sites More sharing options...
Nukey Shay Posted January 7, 2017 Share Posted January 7, 2017 Can anyone tell me if Defender 2 fixable? I don't know. Defender 2/Stargate has added RAM. If an original game is hacked, an emulator would not be able to identify it. Does the portable allow you to update a game profile to select the banking method used? Quote Link to comment Share on other sites More sharing options...
iesposta Posted January 7, 2017 Share Posted January 7, 2017 What is incorrect with Stargate? I saw it boot and play, You wouldn't be able to use joystick 2 for its options without hacking to color, etc... Bob DeCrecenzo's Stargate to Defender de-make doesn't boot at all.. Quote Link to comment Share on other sites More sharing options...
atarifan88 Posted January 7, 2017 Share Posted January 7, 2017 (edited) I don't know. Defender 2/Stargate has added RAM. If an original game is hacked, an emulator would not be able to identify it. Does the portable allow you to update a game profile to select the banking method used? I don't think so. The game itself works but I was just looking to see if there was a way you could remap the smart bomb button from the player two fire to a difficulty or b&w switch within the game code itself? Edited January 7, 2017 by atarifan88 1 Quote Link to comment Share on other sites More sharing options...
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.