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Be great to have an online up to date set but I guess it’s legal thing, copyrighted roms and all that J

I reckon they should work John, the protection was set to Barcrest and it got rid of the chr alarm so hopefully. J

Yeah I have a fairly up to date set mate. I can either send you a one drive link or stick on usb when I see you J

Ta very much mate I'll try patch those tonight, and update here and post them if they patch ok - hopefully should

All good to know info, thanks mate When you say 'in the archive'.. is this like an official centralised FME rom archive that can be browsed/downloaded from somewhere? I guess ultimately I could end up batch-patching all MPU3/4 ROMs in that archive, doing some sort of automated verification with an emulator, then adding them to the archive...

Whoever wanted them, these are the BWB 10p £6 jackpot version. They are CHR protected at present. It seems to be a Barcrest CHR protection so maybe John could work his magic. They boot in MFME. It shouldn't matter that they are BWB, but to be fair this is probably the version you have, I believe most if not all rebuilds where carried out by BWB. Hope it helps ;) J vv_10_k_.rar

I imagine we have a 10p £6 version. I won’t be getting involved in any rom hacking any time soon. It would be easier to replace the decal than hack these stake dedicated roms. I will check though as I’m pretty sure there will be a 10p £6 version in the archive, I’ve certainly played many on that setting in the wild, these lower stake rebuilds aren’t usually switchable, so hacking is just a labour of love J

Wow man. I fumbled with my real life BWB and was able to clone the chr and patch other to work on the Monte Carlo chr chip It was a lot of luck involved for me though. Your method seems the way forward for sure Great work bud, really this will help anyone that has real hardware but not a lot of original game boards J

Your old favourite working Chr free for another quick test Nice layout

The 128k roms aren’t doable yet. I think John has limited time to look into this project. Wait and see if he gets time I guess. J

Just wee update mabby2000 has agreed to burn a me a new sound thing for a small fee , will update after I recieve the chip 🙏

You can try prying the eprom out carefully- cleaning the legs lightly and having a look at the socket and you might get lucky. But it's probably a fault

Hi, its a difficult one to advise you further- it's not picking up the sound prom but without anything more to go on its difficult. Reasons might be Sound Eprom fault (someone has fitted it backwards at some point and toasted it) Game card Faulty (sound processing is on the card) Main board fault (the checks or responses to sound area the mainboard are expecting it's not getting. Apologies I can't narrow it down anymore. Ideally you want to fit the game card in another machine and see if it does the same thing.

Thanks J Don't have the means to burn this or have any chips unless someone fancies a quick jobby lol😂😂😂 Mine is 20p/£4.80 with Blue Moon jp tune.

Hard drives usually present problems reading or writing if they're failing. If your drive is not running at all I'd check that it's receiving power. For a general check to see if it's working I'd connect it to another PC. Also worth looking at my suggestion in this thread: Hope you get it sorted, good luck.

Ok- I was hoping for 4. Can we have a pic square on of the game card? I still think the same it's not picking up the sound program

Not sure of the pattern - but I've not seen a rom bigger than 64k work yet I don't think, and I tested a few... plus their sigs looked odd... suspect I'll need to do more R&D to get the bigger ones working, dunno when I'll get round to it though. If anyone could find some hacked 128k roms from the archives (hacked stakes or whatever), then we could analyse them and see how it was done (unless it was never done) Or if anyone can deal with debugging the 6809, with time more hacks could be developed... it's all time-consuming though innit, I'll probably just keep fettling the 64k stuff when I get a spare hour here and there for now Another option is to automate MFME or MAME, to load/run the roms - so if you have say 300 possible branch instructions that you might want to try messing with, you automate trying each one in turn, then skipping onto next if you get Bad Chr message on the vfd, or if you detect beeping on the audio etc... Plus tat could be done threaded, so you could have 4 concurrent instances - as a slow but not terrible way to attempt some brute force tactics. Another way would be using MAME and logging the PC for the 6809 to text file with good/hacked rom - see where the divergence(s) are etc... Anyone wants to get involved, please do! I've not the time to invest unfortunately - though I'd imagine the ones that don't work yet can be understood I'm just throwing out ideas other coders could try if the manual debugging ends up being crazy... Another idea could even be: Use cheat engine or whatever to slow MFME down, run and screen capture video of boot process with debugger showing... maybe takes 8-24 hours or something, but then you have a video of it with every instruction being run. Then do the same for the patched rom that breaks. With the vidoe editing software, get both streams synced to the start frame - then just scan through and find the divergence visually. Bit bodgy, but I guess it save having to get a compiled Mame up and running. It is super bodgy though lol

Tested a few more BWBs - definitely works on quite a few BWB Andy Capp FAIL BWB Super Hyper Viper OK BWB Viva Espana OK BWB Viz OK BWB Voodoo Express 256k (tried it - Characterise error) BWB Winner Takes All OK BWB Big 40 Poker (MPU4 VIDEO) OK

Had a very quick look at trying it on BWB machines... since they also have the characteriser and the lamp stuff on the chr chip. So I tried Andy Capp BWB and it didn't work, but the Barcrest one does... but, then tried Super Hyper Viper BWB... and it worked! So based on that massive trial of 2 machines, it shows that it can patch at least some BWBs... I'll do some more tests at some point, it's just getting the time at the mo. If anyone has a BWB machine they need a patch for, hit me up and I can check pretty quickly if it'll work with this early version of the patcher - and sort you out a Chr free version of your Rom if it does Here's Super Hyper Viper BWB version running without Chr chip installed:

If you want to try it, here's a Chr free patched version - it's v2.3 from the latest MFME layout. So you could remove your old ROM and try this one (as it should work without Chr), if you have the means to burn it to a spare chip... Blue Moon v2.3 ROM Chr Free.zip

Hello came down a rabbit hole found out that many fruit machines are emulated. After being raped religiously during the 80s and 90s in pubs i thought i'd get some free play. incidentally Bar Crest was just down the road from where i lived back then...happy days

Still a fair bit of work to do on all this, but here's a demo of doing a patch. MFME won't be needed (for real machine users who don't use emulators), as that dropdown list will grow as I build something to scrape in the 8x 'magic' numbers per game (used for the lamp mapping). So they select their MPU4 ROM file, select the name of the game from the list, then click 'Patch' button. I use MFME here to show what's going on with the Rom it is using, and then to show the patched ROM working with a completely zero'd Chr chip (same as when machine has no chip installed) at the end