Yeah, we're talking real old-school microcontroller stuff here, and my guess is that what I'm looking to do is pretty much impossible.
But the old Mostek 3870 was a 1970's/1980's microcontroller with an internal masked ROM section to it. Later on they came out with the 38P70, which had an EPROM socket on the back of the chip. IIRC it used the old Fairchild F8 assembly language.
I'm looking to see if I can extract the code from the original 3870's, so that I can do repair work and burn it into an EPROM for the 'piggyback' version, to replace the original masked version if necessary.
Anybody ever worked with these antiques?
But the old Mostek 3870 was a 1970's/1980's microcontroller with an internal masked ROM section to it. Later on they came out with the 38P70, which had an EPROM socket on the back of the chip. IIRC it used the old Fairchild F8 assembly language.
I'm looking to see if I can extract the code from the original 3870's, so that I can do repair work and burn it into an EPROM for the 'piggyback' version, to replace the original masked version if necessary.
Anybody ever worked with these antiques?