I intend to remove the gating mod from the EUP board and then load sideways ram with images using the loader built into either the PRES or Slogger Plus 1 roms (these are what is fitted to my two Plus 1s).MartinB wrote:John - what are you going to use (are using perhaps?) as your benchmark 'evil Plus 1' test?
I hadn't considered that the loading method might be significant - although if you remember back far enough, I originally encountered this problem using a hacked-together routine of my own design which I think should have worked but in reality induced really bad corruption. So perhaps the chance of finding an evil Plus 1 is:I ask because whilst I have been slightly sidetracking your thread with Colin, the eeprom utils I'm about to re-release include a rom image loader which can be used to load 'normal' SWR, not just eeprom.:
(chance of bad ls/als configuration) x (chance that chip timings are worst case) x (chance you're not using the best method for loading) = a small number. This could explain why the problem is quite rare.
How does your new method work?