Pinmame debugger issue with WPC roms

[RalphButler]

Sometimes when I'm looking at the $4000-$7FFF range in pinmame and use J xxxx to look at the disassembly window it shows NEG $00 for the disassembly instead of the actual mnemonics. This is version 2.0.1 of pinmame; makes it inconvenient to do a DASM test.txt 4000 7fff when I'm in the correct bank. The bank is loaded and confirmed by looking in the data window I can see the opcodes. Do newer version exist of pinmame debug that don't have this issue?

[mrglee]

I had this same problem today while testing a tilt-warning fix on Dr. Who. I assumed that I did something wrong and didn't consider it to be problem in pinmame. It only happened while running the hack code I inserted at the very end of the bank near the 7ffff. I figure there's some architectural issue that pinmame is correctly simulating and it causes the memory to all read as 00s. Never thought of trying a different version of pinmame, I was just going to change the tilt-fix so it doesn't try to run code near the 7ffff boundary.