lucifershalo Posted April 23, 2021 Share Posted April 23, 2021 Hello, all please please please think about us and keep working on Robotron for pal console I know there was a project to do it, it would also be cool to have a joystick accessory with 2 joysticks on it to play Robotron and T:Me Salvo Quote Link to comment Share on other sites More sharing options...
+slx Posted April 24, 2021 Share Posted April 24, 2021 13 hours ago, lucifershalo said: Hello, all please please please think about us and keep working on Robotron for pal console I know there was a project to do it, it would also be cool to have a joystick accessory with 2 joysticks on it to play Robotron and T:Me Salvo I wasn't even aware there isn't a Robotron for PAL. If you search for 7800 on Thingiverse, you'll find a Robotron bracket for the painline controllers. Quote Link to comment Share on other sites More sharing options...
RevEng Posted April 28, 2021 Share Posted April 28, 2021 It's only tested in emulation so far, but give this a shot and let me know. Robotron 2084 (PAL HACK).a78 It's a (fairly involved) hex-edit hack that fixes the display to run on PAL, so no speed tweaks. (I don't know if speed tweaks are even possible.) Technical details ahead... The display and NMI for this game is a bit unconventional. There are mulitple NMI, and the NMI that's supposed to run at the bottom of the screen looks to see if a vblank transition happens soon, to ensure it actually is running at the bottom of the screen. If that transition doesn't come, it assumes the NMI order is off, and shifts the order. But if the vblank transition is never seen in any of the NMI positions, the shifting never ends. Due to this NMI scheme, this PAL hack hangs on NTSC consoles, for the same reason the NTSC retail release hangs on PAL. (no vblank transition near the NMIs) 4 1 Quote Link to comment Share on other sites More sharing options...
marauder666 Posted April 28, 2021 Share Posted April 28, 2021 Played 5 levels, a little slow but thats expected, and not a problem. Fantastic. 5 Quote Link to comment Share on other sites More sharing options...
+Trebor Posted April 28, 2021 Share Posted April 28, 2021 Excellent work, @RevEng! The slight slowness is somewhat offset by changing the skill level. As each increment (or decrement) in difficulty adjust the speed of the enemies. So for NTSC the speeds of... NOVICE <--> INTERMEDIATE <--> ADVANCE <--> EXPERT ... under PAL the speed is more like... TEDDY BEAR <--> NOVICE <--> INTERMEDIATE <--> ADVANCE. The only negative (or not - depending on preference/perspective) is 'INTERMEDIATE NTSC-like speed', "ADVANCE" label under PAL, furnishes only 3 (instead of 5) lives. 3 1 Quote Link to comment Share on other sites More sharing options...
fragsinatra420 Posted April 29, 2021 Share Posted April 29, 2021 Wow, this is great news ;D @lucifershalo will this work on the Dragonfly Multicart for the 7800 with a PAL system? Quote Link to comment Share on other sites More sharing options...
fragsinatra420 Posted April 29, 2021 Share Posted April 29, 2021 eeehhhmmm sorry, I mean @RevEng Quote Link to comment Share on other sites More sharing options...
marauder666 Posted April 29, 2021 Share Posted April 29, 2021 34 minutes ago, fragsinatra420 said: Wow, this is great news ;D @lucifershalo will this work on the Dragonfly Multicart for the 7800 with a PAL system? Thats what i’m running it with. Quote Link to comment Share on other sites More sharing options...
fragsinatra420 Posted April 29, 2021 Share Posted April 29, 2021 ahhhh, now I see it on the picture ? Thanks! Quote Link to comment Share on other sites More sharing options...
fragsinatra420 Posted April 29, 2021 Share Posted April 29, 2021 @marauder666 did you save the ROM into the HB, Original or YM2151 folder? Is it NTSC or PAL now ;P? Quote Link to comment Share on other sites More sharing options...
fragsinatra420 Posted April 29, 2021 Share Posted April 29, 2021 I can't believe it, finally on the real hardware with the best controller ? for it thanks, works fine @RevEng 3 Quote Link to comment Share on other sites More sharing options...
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