i was just wondering if there was ever a Nibbler high score save kit made.
if so where do i get one.
i would like to have my scores saved.
Peace
Buffett
if so where do i get one.
i would like to have my scores saved.
Peace
Buffett
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Looks like all the work RAM, likely including the high score(s), is in a single 4118. The pinout of which appears ideal for drop in replacement with a DS1220 or silimar. So the only thing to do is a little 6502 code hacking to preserve them from boot-time RAM testing/init and copying of defaults...
Is there a Nibbler owner out there with desoldering equipment & skills, AND EPROM erasing/programming equipment?
OK, I've been informed that it seems some (most?) Nibbler boards have the RAM @ IC13 socketed.
So now here's the criteria for the tester I need:.
I'll have to look at my pcb after work tonight, but if not socketed, I'll make it so.-need a working nibbler PCB with a socketed RAM @ IC13 (either factory socketed, or by you)
Not sure if I have any of these on hand, might have to order.-need one 2k NVRAM, such as DS1220 or M48Z02
I should have some 2732's on hand.-need an EPROM eraser & programmer, and ideally some EPROMs of the same type as IC7 & IC10 (2732 according to the schems)
Not sure which code revision I have. How can you tell (besides getting past wave 32, I'm not that good at Nibbler yet!)?-need to be able to determine which revision of the nibbler code you have.
Not sure which code revision I have. How can you tell (besides getting past wave 32, I'm not that good at Nibbler yet!)?
Push the joystick up (or down?) during attract mode.
Not sure which code revision I have. How can you tell (besides getting past wave 32, I'm not that good at Nibbler yet!)?
Another dumb question: I probably have some M48z02's laying around. Is there any way to test them to see if the battery is good?
Does your programmer support M48Z02? (Mine does!). If so, just program any 2k file to it, pull it out of the programmer, put it back in and try to verify it. If not, try reading it as a 2716 to see if anything is on it.
I think I have a source to borrow a new one from.