ah, you have to invert the polarity, then run it with the BASIC cart inserted, I was trying to get it to verify, before even trying it with the BASIC.

[Linked Image from mamedev.emulab.it] [Linked Image from mamedev.emulab.it]
[Linked Image from mamedev.emulab.it] [Linked Image from mamedev.emulab.it]

it still seems to stop loading before the end, but maybe it's meant to..

also if I do 'V' (verify) instead of 'L' it says checksum error immediately after trying to load the header still (which is weird because at that point it really doesn't have much to checksum)

it's some kind of graphing program, written in basic, I have no idea if it works properly.

http://mamedev.emulab.it/haze/