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But id personally prefer the jackpot to be limited to £100 ed .its in keeping with the machine original design

Found the gamble limit Spent some time on this last night. Tried a different approach to find the gamble limit. I have looked at the RAM data in the emulator and found the bytes that are associated with the gamble winnings pot. I found that the data was stored in two bytes split between tens and units. So memory address 76 is the tens and 77 in the units so £6 would be 76 = 00 and 77 = 60 then there are addresses 86 and 87 that store the same information. On the emulator I am able to change the data in the RAM, so when a gamble is live I can set addresses 77 & 87 to 45 to make the gamble pot to £4.50. This made testing easier. I found that the limit for automatic collection was £5. Once I knew the RAM address I could look at the decompiled code to see where this is written to. So I looked for the variable M0086 & M0087 and found the following code: I changed the line CMPA #$50 to CMPA #$90 and the limit increased from £5 to £9. I decided to remove the limit all together so removed the lines in the code simply by duplicating the LDA commands like this: With the revised code I then ran the emulator to check and there is now no limit on the gamble. It will not auto collect and will go past £100 Heres the video of the emulator running: I will burn the file to an eprom and try it in my machine over the weekend. Should be fine, but need to test some more. Here's a copy of the work in progress rom file if anyone wants to play on the emulator. 🙂 spls9f 20 credit No limit.bin.zip

This is great stuff. Good job Eddie