PDP-11/40E - Revision history

Larsbrinkhoff: Also Interlisp-11.

2024-01-11T14:20:40Z

Also Interlisp-11.

← Older revision		Revision as of 14:20, 11 January 2024
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	The '''PDP-11/40E''' was a modified version of the basic [[PDP-11/40]], produced in small numbers at [[CMU]] for use in the [[C.mmp]] [[multi-processor]] system, which ran the [[HYDRA]] [[operating system]]. It added a writeable [[microcode]] extension (adding 1K micro-words to the original 256), [[hardware]] for general field shift and extraction, and extension of the microcode width from 56 bits to 80. The extra hardware uses the [[Central Processing Unit\|CPU]] [[backplane]] slots normally used for the [[KE11-E Extended Instruction Set\|KE11-E]] and [[KE11-F Floating Instruction Set\|KE11-F]] options.		The '''PDP-11/40E''' was a modified version of the basic [[PDP-11/40]], produced in small numbers at [[CMU]] for use in the [[C.mmp]] [[multi-processor]] system, which ran the [[HYDRA]] [[operating system]]. It added a writeable [[microcode]] extension (adding 1K micro-words to the original 256), [[hardware]] for general field shift and extraction, and extension of the microcode width from 56 bits to 80. The extra hardware uses the [[Central Processing Unit\|CPU]] [[backplane]] slots normally used for the [[KE11-E Extended Instruction Set\|KE11-E]] and [[KE11-F Floating Instruction Set\|KE11-F]] options.

			The PDP-11/40E was also used at [[BBN]] for [[INTERLISP\|Interlisp-11]].

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Jnc: typo

2022-03-16T02:45:10Z

typo

← Older revision		Revision as of 02:45, 16 March 2022
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	The '''PDP-11/40E''' was a modified version of the basic [[PDP-11/40]], produced in small numbers at [[CMU] for use in the [[C.mmp]] [[multi-processor]] system, which ran the [[HYDRA]] [[operating system]]. It added a writeable [[microcode]] extension (adding 1K micro-words to the original 256), [[hardware]] for general field shift and extraction, and extension of the microcode width from 56 bits to 80. The extra hardware uses the [[Central Processing Unit\|CPU]] [[backplane]] slots normally used for the [[KE11-E Extended Instruction Set\|KE11-E]] and [[KE11-F Floating Instruction Set\|KE11-F]] options.		The '''PDP-11/40E''' was a modified version of the basic [[PDP-11/40]], produced in small numbers at [[CMU]] for use in the [[C.mmp]] [[multi-processor]] system, which ran the [[HYDRA]] [[operating system]]. It added a writeable [[microcode]] extension (adding 1K micro-words to the original 256), [[hardware]] for general field shift and extraction, and extension of the microcode width from 56 bits to 80. The extra hardware uses the [[Central Processing Unit\|CPU]] [[backplane]] slots normally used for the [[KE11-E Extended Instruction Set\|KE11-E]] and [[KE11-F Floating Instruction Set\|KE11-F]] options.

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Jnc: /* External links */ +Microprogramming Reference Manual

2022-03-11T02:07:24Z

External links: +Microprogramming Reference Manual

← Older revision		Revision as of 02:07, 11 March 2022
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	** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/Oakley_A_Comparison_of_Two_Microprogrammable_Processors_May75.pdf A Comparison of Two Microprogrammable Processors]		** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/Oakley_A_Comparison_of_Two_Microprogrammable_Processors_May75.pdf A Comparison of Two Microprogrammable Processors]
	** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/A_PDP1140E_Microprogramming_Primer_Jul78.pdf A PDP-11/40E Micro-programming Primer]		** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/A_PDP1140E_Microprogramming_Primer_Jul78.pdf A PDP-11/40E Micro-programming Primer]
			* [https://kilthub.cmu.edu/articles/journal_contribution/PDP-11_40E_microprogramming_reference_manual/6608333/1 PDP-11/40E Microprogramming Reference Manual]

	{{PDP-11}}		{{PDP-11}}

	[[Category: UNIBUS PDP-11s]]		[[Category: UNIBUS PDP-11s]]

Jnc: Brief synopsis

2022-03-09T16:23:19Z

Brief synopsis

New page

The '''PDP-11/40E''' was a modified version of the basic [[PDP-11/40]], produced in small numbers at [[CMU] for use in the [[C.mmp]] [[multi-processor]] system, which ran the [[HYDRA]] [[operating system]]. It added a writeable [[microcode]] extension (adding 1K micro-words to the original 256), [[hardware]] for general field shift and extraction, and extension of the microcode width from 56 bits to 80. The extra hardware uses the [[Central Processing Unit|CPU]] [[backplane]] slots normally used for the [[KE11-E Extended Instruction Set|KE11-E]] and [[KE11-F Floating Instruction Set|KE11-F]] options.

{{semi-stub}}

==External links==

* [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/ 1140E] - BitSavers -11/40E collection
** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/Oakley_A_Comparison_of_Two_Microprogrammable_Processors_May75.pdf A Comparison of Two Microprogrammable Processors]
** [http://www.bitsavers.org/pdf/dec/pdp11/1140/1140E/A_PDP1140E_Microprogramming_Primer_Jul78.pdf A PDP-11/40E Micro-programming Primer]

{{PDP-11}}

[[Category: UNIBUS PDP-11s]]