15 Aug
2006
15 Aug
'06
3:14 p.m.
From: "Al Kossow" <aek at bitsavers.org>
That one is much clearer, though I cannot find the logic in it
(if any) that inhibits reads when using the bootstrap cards.
The bootstrap ROM in my 8/e is a diode matrix ROM that doesn't appear in
the memory map. When you flip the 'SW' switch, the boot ROM pretends to
be a front panel and copies itself into the appropriate bit of core.
-tony