[Oberon] Other CONST.

Paul Reed paulreed at paddedcell.com
Mon Jan 7 00:16:39 CET 2019

Hi Lyall,

> MODULE Clipboard in Peter De Wachter's emulator has
> CONST control = -24; data = -20;

They are memory-mapped input/output addresses.  Normally, see the last
page of


but since -24 and -20 (0FFFFFFE8H and FFFFFFECH) are defined by the
emulator presumably for virtual machine to host clipboard purposes, you
don't see those particular addresses in Prof. Wirth's document.


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