Quote:
Originally Posted by hooverphonique
It supports 512K of chip ram, but also slow ram, so you can put the traditional A501-style 512K expansion board in such an A500.
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Yup, the trapdoor was basically created for the A501, which was released at the same time as the A500. To the best of my knowledge C= did not release a clock-only expansion.
And this led to the evil practice of games authors assuming that any expansion memory would be located at the $c0... "Ranger" memory address range. It was so bad that even many later A500s that shipped with an ECS Agnus would use the A501 as Slow ranger memory by default.