aiiadict@gmail.com wrote:
trace the address and data lines on the card (http://osites.tripod.com/peripheral.html) A0-A15 and D0-D7 If the Eprom is mapped to the Apple II slot, you should be able to: 1)put it in slot 7 2)boot to basic prompt 3)type CALL-151 (enter machine language monitor) 4)type C700L (list the code at C700, which would be on the card in slot 7) 5)you should see the code on screen from the basic prompt, type BSAVE EPROMDUMP,a$c700,L256
But I'm guessing that it's at least a 2KB EPROM, so the expansion space would also be of interest. To capture that is a little trickier, since I/O will switch the expansion ROM space off. It has to be copied into RAM before viewing or saving it. BTW, unless it was left outside in the sun, or under a fluorescent light for months, the lack of a window covering for the EPROM is almost certainly not an issue. It'll be fine. -michael Music synthesis for 8-bit Apple II's! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it is seriously underused."