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Commodore Amiga A500 - Page 236

Commodore Amiga A500
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DESCRIPTION
THE CLOCK IS
NOW TILED THROUGHOUI THE SPACE fD80000-DBFFFF. IF
MORE PRECISE SELECTION TO BD8000r BD8FFFF IS REALLY NEEDED, THEN
THIS MUST BE DONE EXTERNALLY USING THE /CS INPUT ON THE CLOCK CHIP
DTACK FOR THE CLOCK IS HANDLED IN THE MYRAME
EQUATION BECAUSE THE DTACK
EQUATION ALREADY HAS
7
OR TERMS! THIS MEANS THAT CLOCK ACESSES WILL BE
SYNCHRONIZED
TO
VIDEO CYCLES, BUTbTHIS SHOULD CREATE NO MAJOR PROBLEMS.
THE IMPLEMENTATION OF
ROME/MYRAME MATCHES THE A1000
-
IT MIGHT BE
~ES~RABLE TO HAVE THE ADDRESS RANGE IN HYRAME MATCH THE ROn SELECT
ADDRESS RANGE
...
MYRAME CUTPUT IS NOT USED EXTERNALLY
-
ONLY INTERNAL USAGE!!!

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