bataais Posted August 20, 2013 Share Posted August 20, 2013 Beamrider now working.. It's 274 Scanlines and runs at 57.37 Mhz, almost 60. That's the best I could get without kneeling too deep into the disassembly. Tested on the Harmony Cart up to Sector 10. Beamrider_PAL60_V4.bin 1 Quote Link to comment Share on other sites More sharing options...
BrianC Posted August 20, 2013 Share Posted August 20, 2013 Does the Telegames US version of Bump 'n Jump count as PAL 60? It plays fine on US TVs, but seems to have the PAL colors. It's definitely different from the PAL ROM since I tried it on harmony and had a rolling screen, which didn't happen with my actual cart. Quote Link to comment Share on other sites More sharing options...
PFL Posted August 21, 2013 Share Posted August 21, 2013 Thanks bataais for the new version of Beamrider. I'm looking forward to trying it out later. @ BrianC; I've never heard of that. I suppose if it's using the PAL palette and it runs at 60Hz then I would qualify it as PAL60. It's pretty unusual though to see on a commercial cart. Telegames are such a strange company for such things though. Funnily enough I just got Urban Yeti for the GBA brand new this morning. The box is the PAL release but the cart is the US one... Quote Link to comment Share on other sites More sharing options...
bataais Posted August 21, 2013 Share Posted August 21, 2013 That's very strange about the Telegames Bump 'n' Jump. It's an 8K rom, while the original M Network / INTV is a 16K (E7) cart with additional 2x 1K RAM. BrianC, if your cart looks like the attached rom, then you have a rare PAL60 cart Bump 'n' Jump (Telegames)_PAL60.bin Quote Link to comment Share on other sites More sharing options...
bataais Posted August 21, 2013 Share Posted August 21, 2013 Another quick one: Robot Tank_PAL60.bin Quote Link to comment Share on other sites More sharing options...
BrianC Posted August 22, 2013 Share Posted August 22, 2013 (edited) That's very strange about the Telegames Bump 'n' Jump. It's an 8K rom, while the original M Network / INTV is a 16K (E7) cart with additional 2x 1K RAM. BrianC, if your cart looks like the attached rom, then you have a rare PAL60 cart cool. Thanks. That is exactly what my cart looks like. Funnily enough I just got Urban Yeti for the GBA brand new this morning. The box is the PAL release but the cart is the US one... Do you mean it has a US style label, or that it plays on US systems? GBA has no region protection, so the game itself may be exactly the same. However, if it's the former, it could be a bootleg. Edited August 22, 2013 by BrianC Quote Link to comment Share on other sites More sharing options...
BrianC Posted August 22, 2013 Share Posted August 22, 2013 (edited) I wonder what the case is with the 8k ROMs for Telegames games. Burgertime PAL seems to be 8k as well. I heard M-Network Burgertime wasn't as optimized as much as it could have been, so maybe they were able to fit the whole game in 8k bankswitching? Did you just hack the PAL ROM, or is that the actual Telegames ROM? I don't mean anything by this, it's just that it behaves exactly like the cart, right down to the slightly sped up music. Edited August 22, 2013 by BrianC Quote Link to comment Share on other sites More sharing options...
bataais Posted August 22, 2013 Share Posted August 22, 2013 @BrianC, I hacked the Telegames PAL rom (changed the TIM64T to the same values as the original M Network NTSC ones). But I didn't change any color values. Quote Link to comment Share on other sites More sharing options...
bataais Posted August 22, 2013 Share Posted August 22, 2013 Just converted some more roms to PAL60. For the first time, we PAL gamers can now play Checkers (Activision) and Indy 500 in the original colors (& speed) Strange that Atari didn't adjust the color values in Indy 500. Checkers_PAL60.bin Fathom_PAL60.bin Indy 500_PAL60.bin Quote Link to comment Share on other sites More sharing options...
san-d-2000 Posted August 22, 2013 Share Posted August 22, 2013 Great thanks! Quote Link to comment Share on other sites More sharing options...
BrianC Posted August 22, 2013 Share Posted August 22, 2013 @BrianC, I hacked the Telegames PAL rom (changed the TIM64T to the same values as the original M Network NTSC ones). But I didn't change any color values. oh cool. I have a feeling that this is what Telegames did, as well. Quote Link to comment Share on other sites More sharing options...
bataais Posted August 23, 2013 Share Posted August 23, 2013 Today some oldies but goldies, this time hacking the colors of the NTSC roms Basketball_PAL60.bin Maze Craze_PAL60.bin Sky Diver_PAL60.bin Quote Link to comment Share on other sites More sharing options...
PFL Posted August 23, 2013 Share Posted August 23, 2013 Thanks for the above ROMs. Just a question though. I've tried out Beamrider v4 on a couple of tellys but the picture rolls on both of them. They're both old 14" CRT's and they have no problem with other games. Is anyone else having this issue? Quote Link to comment Share on other sites More sharing options...
bataais Posted August 24, 2013 Share Posted August 24, 2013 @PFL, maybe it's because beamrider_v4 has 274 instead of 262 scanlines. I have no problems on my old philips CRT. There are 2 ways to convert a rom to PAL60: 1. Taking the NTSC rom and changing all the color values to the corresponding PAL ones. This can be difficult. You have to find all the color code locations. 2. Taking the PAL rom and changing the amount of scanlines. Mostly by chaning the TIM64T values. Colors are already in PAL palette. This can be easy, but sometimes it's not enough to only change the timer.. Beamrider NTSC and PAL differ in more than 290 bytes. My fist attempt was to spot all the colors and adjust them to PAL. But as there are so many, I missed some of them. My second attempt was to change the timer, but I reduced it too much, getting an unstable image. V4 has this problem solved, but because of the Activision-logo there are now 274 scanlines.. The version below is a hack of V4, I had to get rid of the Activision-logo and making the life indicator ships smaller. It runs now with 262 scanlines, at 60 Hz. I think Beamrider PAL is speed-adjusted, so this version may well be faster than even the original NTSC Beamrider. I hope it works now on your older CRTs. Beamrider_PAL60_hack.bin Quote Link to comment Share on other sites More sharing options...
bataais Posted August 24, 2013 Share Posted August 24, 2013 To my knowledge this is the first attempt at converting a PAL60 version of Spy Hunter. And yet another version of Demon Attack, changing only 3 bytes in the original PAL rom. I have now converted 30 roms to PAL60 in one week and will take a break for a while. Have fun. BASICProgramming_PAL60.bin Cosmic Ark_PAL60.bin Demon Attack_PAL60.bin Outlaw_PAL60.bin Spy Hunter_PAL60.bin Warlords_PAL60.bin Quote Link to comment Share on other sites More sharing options...
bataais Posted August 24, 2013 Share Posted August 24, 2013 I checked Spy Hunter_PAL60 above on the Harmony Cart, and it was BW. That's strange, because Stella showed me the adjusted 262 Scanlines. When I put it back to 261 as in the original NTSC rom, it's now in color on my CRT. What is going on with that cart? Spy Hunter_PAL60.bin Quote Link to comment Share on other sites More sharing options...
bataais Posted September 5, 2013 Share Posted September 5, 2013 Some more classics (mostly Activision): Boxing_PAL60.bin Chopper Command_PAL60.bin Fishing Derby_PAL60.bin Laser Blast_PAL60.bin Skiing_PAL60.bin SpaceMaster X-7_PAL60.bin Tennis_PAL60.bin Quote Link to comment Share on other sites More sharing options...
Aydan Posted September 5, 2013 Share Posted September 5, 2013 Awesome stuff so far guys Any chance of Pal 60 versions of: DigDug Commando HERO Joust Mario Bros Pole Position Secret Quest Wizard of Wor ? If not then is there a place to look up so Ican see how to change NTSC into PAL60? Thanks guys! Quote Link to comment Share on other sites More sharing options...
bataais Posted September 5, 2013 Share Posted September 5, 2013 @Aydan, if I have the time, I will convert those too. If you want to try yourself: I learned a lot from these posts: http://atariage.com/forums/topic/202970-hacking-ntsc-roms-to-create-pal60-versions/ I'm using a HEX editor, comparing PAL and NTSC versions, and Stella's debugger with disassembly. Quote Link to comment Share on other sites More sharing options...
Aydan Posted September 5, 2013 Share Posted September 5, 2013 Thank you, I'm very new to all this so I'm going to have a read and see. It seems quite complicated so everyones effort is truly appreciated! One thing I noticed testing these games on STELLA, the colours aren't matching their NTSC originals, even when selecting it to be PAL 60 in the emulator! Quote Link to comment Share on other sites More sharing options...
+stephena Posted September 5, 2013 Share Posted September 5, 2013 PAL60 is "PAL colours" at "NTSC framerate" (aka, 60 fps). The colour information (at least at the base level) is hardcoded into the console. So anything that runs on a PAL console is going to use PAL colours, regardless of whether it's running at normal 50Hz rate (PAL or so-called PAL50), or at 60Hz (PAL60). So it's entirely possible that the PAL60 colours don't match the NTSC ones, since they'd be coming from two different consoles. All that being said, I don't have a PAL console, and don't have a way to view it even if I did. So it's possible the PAL emulation isn't as accurate as it could be. Quote Link to comment Share on other sites More sharing options...
Aydan Posted September 5, 2013 Share Posted September 5, 2013 Yeah I understand that's how it works from reading up What I mean is, people are making PAL60 versions of these games, which means the colours should be correct to their NTSC counterparts and be full screen. The gameplay and screen are full/fast but the colours aren't correct, so I'm wondering if it's emulation or if people just made the colours as close as possible but couldn't make them 100% accurate. Just wondering Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted September 5, 2013 Share Posted September 5, 2013 Its both. The PAL color palette is a bit limited (e.g. it doesn't have a real yellow) and the remaining colors do not match exactly the NTSC colors. Also not even the NTSC palette is "correctly" emulated, because each TV and each console are slightly different. Quote Link to comment Share on other sites More sharing options...
bataais Posted September 5, 2013 Share Posted September 5, 2013 Even some original PAL roms have very bad color conversions, take Battlezone or Pole Position, also Wizard of Wor. @Aydan, here are 3 of your wish list. Quick and dirty. Changing the PAL TIM64s. Pole Position will need a better color conversion, following soon. The others on the list look a bit difficult at the moment. H.E.R.O._PAL60.bin Pole Position_PAL60.bin Wizard of Wor_PAL60.bin Quote Link to comment Share on other sites More sharing options...
bataais Posted September 5, 2013 Share Posted September 5, 2013 And some 2K-oldies I converted earlier this day: Steeplechase_PAL60.bin Stampede_PAL60.bin Bowling_PAL60.bin Quote Link to comment Share on other sites More sharing options...
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