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Apple II plus memory map needed + other help :)
- Subject: Apple II plus memory map needed + other help :)
- From: "andy welburn" <warlords@ntlworld.com>
- Date: Sun, 24 Feb 2002 13:29:30 -0000
- Newsgroups: comp.sys.apple2
- Organization: ntl Cablemodem News Service
- Xref: archiver1.google.com comp.sys.apple2:17772
Hi all..
first post here.. so don't flame me, i have lookedm but i can't understand
the memory maps and other information that i am finding..
I have an apple 2 plus sitting here that i am trying to bring back to life,
the power supply is good, that i do know, the cpu is running ok (no resets)
but no video output..
I fix video arcade pcb's all the time, and have a Fluke 9100 digital test
system, and a 6502 pod.. i could do preliminary tests to work out whats
wrong, if only i had a reliable memory map..
for example, Missile Command (6502 based) is like this:
0000-3FFF = ram
5000-7FFF = Program ROM
i'm only really interested in ram/rom locations as i can run tests on those,
i don't need to know input ports or other stuff..
The only other thing i need to know is if there's any banked memory or rom
or something, need to know if and where the switches are..
thanks.
Andy