On Sat, May 2, 2009 at 4:50 PM, Joachim Thiemann
<joachim.thiemann at gmail.com> wrote:
Then of course there were those programmers that
thought they were
clever, using the top 8 bits to store flags in pointers, etc. ?Royally
messed up when upgrading to 68020 and up.
I remember reading a warning against such practices the original Mac
system manuals (the "hernia manuals"), but faced with 128K of RAM,
early programmers did not universally heed the warning.
Somehow this seemed only a problem on Macs - the
"dirty" ROMs issue on
the SE30 and some others. ?I don't recall the Amiga ever having those
issues, and I have no clue about the Atari...
I don't know about the Atari either, but I think Amiga folks learned
from the mess in the Mac world, or perhaps there were
68K programmers a year or two later who didn't feel the need to
things like that, or perhaps it was because the base Amiga 1000 came
with twice the memory as the first Mac and was trivial to upgrade to
four times the memory of the original Mac.