japanese 64 kernal disassembled

From: vossi <vossi_at_ceffy.de>
Date: Tue, 10 Apr 2018 01:46:49 -0700 (MST)
Message-ID: <1523350009265-0.post@n4.nabble.com>
Hi Friends,
I disassembled the japanese C64 kernal and interpreted the diffs. Only the
keyboard decoding, frame, screen and textcolor is different. They switched
the basic start to $1000 and don't use the 2kB free area!!!
I think they did it to be compatible to the VIC1001!
I modded the J64-kernal with only one byte and now it should be mostly
compatible to the western 64 (except the different char-rom)!

Christian
<http://cbm-hackers.2304266.n4.nabble.com/file/t374762/j64-modded.png> 



-----
greets
Christian
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Received on 2018-04-10 11:00:02

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