24 Dec
2016
24 Dec
'16
7:46 a.m.
On Fri, 23 Dec 2016, Cameron Kaiser wrote:
It also saved the 100% compatibility problem (in this case, with Commodore's
CP/M cartridge by designing it onto the board, and with Commodore Magic Voice,
which fouled banking by altering the memory configuration lines in realtime:
the 8502 would crash, but the Z80's activity would not be detected and the
C= key could be checked to force a C64 memory map).
Yep. The group actively kept one step ahead of management to keep them
Commodore's Z80 in the 128 was due to unnecessary
fear that they might lose
market share to CP/M, when IBM should have been their big worry.
I don't know all of the details of the ST/Amiga technology swap, but BOTH
were too late, if the primary goal was competing with IBM.
That might be Commodore marketing - Bil Herd said that he threw the Z-80
into the design essentially because he could. :) He's done a few talks on
how the C-128 came about. It's pretty interesting. from screwing with the project too badly. :)
g.
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