15 Aug
15 Aug
12:09 a.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.
Thanks!
Vince
12:48 a.m.
On 8/15/06, vrs <vrs at msn.com> wrote:
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.
My recollection is that PDP-8 bootstraps emulate a front-panel. They
aren't memory mapped, so you don't inhibit existing memory.
-ethan
1:22 a.m.
From: "Ethan Dicks" <ethan.dicks at gmail.com>
On 8/15/06, vrs <vrs at msn.com> wrote:
You are right, at least about the most common one. I don't know about
the rope ROM and third party cards, but I guess I can probably ignore
that, at least for now.
Vince
That one is much clearer, though I cannot find
the logic in it
(if any) that inhibits reads when using the bootstrap cards.
My recollection is that PDP-8 bootstraps emulate a front-panel. They
aren't memory mapped, so you don't inhibit existing memory.
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