Talk:PDP-11 Extended Instruction Set: Difference between revisions

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Created page with "==XOR?== When talking about the PDP-11 EIS, it's a little complicated. You have the KE-11, which was the separate EIS option for the PDP-11/40, and you have all the other PDP-..."
 
XOR?: XOR is in the base KD11-A
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==XOR?==
==XOR?==
When talking about the PDP-11 EIS, it's a little complicated. You have the KE-11, which was the separate EIS option for the PDP-11/40, and you have all the other PDP-11s with EIS by default. The complication is that the instructions provided differ in that XOR was not included in the KE-11, but on all other models.
When talking about the PDP-11 EIS, it's a little complicated. You have the KE-11, which was the separate EIS option for the PDP-11/40, and you have all the other PDP-11s with EIS by default. The complication is that the instructions provided differ in that XOR was not included in the KE-11, but on all other models.
So the question is, should XOR be mentioned on this page or not?
So the question is, should XOR be mentioned on this page or not? --[[User:Bqt|Bqt]] ([[User talk:Bqt|talk]]) 18:36, 27 October 2022 (CEST)
--[[User:Bqt|Bqt]] ([[User talk:Bqt|talk]]) 18:36, 27 October 2022 (CEST)
 
: Actually, XOR ''was'' included in the base [[KD11-A]] of the -11/40, which is why it's not in the KE11-A. And there's also SOB, SXT, MARK, and RTT in the base KD11-A, which are not in the -11/20, -11/05 and -11/04, but are in all the later machines, including the LSI-11. Those are covered [[PDP-11 architecture#Added later|here]]. So I'm not sure there is an error? [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 22:43, 27 October 2022 (CEST)

Revision as of 20:44, 27 October 2022

XOR?

When talking about the PDP-11 EIS, it's a little complicated. You have the KE-11, which was the separate EIS option for the PDP-11/40, and you have all the other PDP-11s with EIS by default. The complication is that the instructions provided differ in that XOR was not included in the KE-11, but on all other models. So the question is, should XOR be mentioned on this page or not? --Bqt (talk) 18:36, 27 October 2022 (CEST)

Actually, XOR was included in the base KD11-A of the -11/40, which is why it's not in the KE11-A. And there's also SOB, SXT, MARK, and RTT in the base KD11-A, which are not in the -11/20, -11/05 and -11/04, but are in all the later machines, including the LSI-11. Those are covered here. So I'm not sure there is an error? Jnc (talk) 22:43, 27 October 2022 (CEST)