KE11-E Extended Instruction Set - Revision history

Ashlin4010: Added Note on ECO

2025-12-24T08:07:17Z

Added Note on ECO

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	The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)		The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)

			==ECO M7238-0004==

			The diagnostics module CKBI includes a test specifically to check for ECO M7238-0004, it has this to say on the matter:
			<pre>
			9.0 PROGRAM DESCRIPTION

			THIS IS A TEST OF THE ASH INSTRUCTION. IT TESTS ASH
			WITH DIFFERENT SHIFT COUNTS IN ALL THE REGISTERS.

			9.1 NOTE: THE LAST ROUTINE IN THIS DIAGNOSTIC IS DESIGNED TO
			VERIFY THAT ECO M7238-0004/FCO M7238-0004 (11/40 ONLY)
			HAS BEEN IMPLEMENTED AND IS FUNCTIONING PROPERLY. THIS ECO/FCO
			AFFECTS THE 11/40 EIS (M7238) OPTION ONLY. THUS, ALL 11/40'S
			MUST PASS THIS ROUTINE. ALSO, THE ECO HAS BEEN PHASED INTO
			PRODUCTION SO ALL 11/40'S WITH THE M7238 MODULE MUST PASS THE
			ROUTINE IN MANUFACTURING.
			FIELD SERVICE - ALL M7238 MODULES INCORPORATING THIS ECO OR FCO
			WILL HAVE CS REVISION E OR ABOVE AND MUST PASS THIS ROUTINE.
			ANY M7238 MODULE BELOW THIS CS REVISION LEVEL WILL FAIL THE
			ROUTINE. THIS IS ACCEPTABLE ONLY IF THE CUSTOMER SOFTWARE
			DOES NOT MAKE USE OF THE DECREMENTED OPERAND RESULTING FROM
			THE EXECUTION OF AN EXTENDED INSTRUCTION (ASH, ASHC, MUL OR DIV)
			USING DESTINATION MODE FIVE. IF THE CUSTOMER SOFTWARE DOES
			MAKE USE OF THIS DECREMENTED OPERAND THEN FCO M7238-0004
			(CS REV. E) MUST BE INCORPORATED AND THE LAST ROUTINE IN THE
			DIAGNOSTIC MUST PASS. IF THE FIELD SERVICE TECHNICIAN HAS
			DETERMINED FROM THE ABOVE CRITERIA THAT A PARTICULAR M7238
			MODULE IS NOT REQUIRED TO PASS THE LAST ROUTINE, THEN HE
			MAY INSERT THE APPROPRIATE CODE TO JUMP FROM THE 'SCOPE'
			INSTRUCTION TO 'ENDPAS', THUS BYPASSING THE ROUTINE. SEE
			THE ECO OR FCO FOR MORE INFORMATION.
			</pre>
			No known copies of the ECO exist.

	==External links==		==External links==

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2022-10-12T00:33:27Z

Better cat

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	* [http://www.bitsavers.org/pdf/dec/pdp11/1140/KE11-E_Engineering_Drawings.pdf KE11-E extended instruction set (EIS) option engineering drawings] <!-- also https://manx-docs.org/collections/hcps/KE11-EIS.pdf -->		* [http://www.bitsavers.org/pdf/dec/pdp11/1140/KE11-E_Engineering_Drawings.pdf KE11-E extended instruction set (EIS) option engineering drawings] <!-- also https://manx-docs.org/collections/hcps/KE11-EIS.pdf -->

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

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2021-11-19T16:59:07Z

+manual, eng drwngs

← Older revision		Revision as of 16:59, 19 November 2021
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	The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)		The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)

	==~~Further reading~~==		==External links==

	* "KE11-E and KE11-F ~~Instruction Set Options Manual",~~ EK-KE11E-TM-002		* [http://www.bitsavers.org/pdf/dec/pdp11/1140/KE11_RefMan.pdf KE11-E and KE11-F instruction set options user's manual] (EK-KE11E-OP-001) <!-- also http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/EK-KE11E-OP-001%20KE11-E%20and%20KE11-F%20Instruction%20Set%20Options%20User's%20Manual.pdf -->
			* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/EK-KE11E-TM-002%20KE11-E%20and%20KE11-F%20Instruction%20Set%20Options%20Manual.pdf KE11-E and KE11-F instruction set options manual] (EK-KE11E-TM-002)
			* [http://www.bitsavers.org/pdf/dec/pdp11/1140/KE11-E_Engineering_Drawings.pdf KE11-E extended instruction set (EIS) option engineering drawings] <!-- also https://manx-docs.org/collections/hcps/KE11-EIS.pdf -->

	[[Category: PDP-11 Processors]]		[[Category: PDP-11 Processors]]

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2021-03-12T20:44:59Z

flat cable type

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	The '''KE11-E Extended Instruction Set''' is the optional [[PDP-11 Extended Instruction Set]] for the [[KD11-A CPU]] of the [[PDP-11/40]]; it implements multiply, divide, and multi-bit shift instructions. It is also used by the [[KE11-F Floating Instruction Set]] option.		The '''KE11-E Extended Instruction Set''' is the optional [[PDP-11 Extended Instruction Set]] for the [[KD11-A CPU]] of the [[PDP-11/40]]; it implements multiply, divide, and multi-bit shift instructions. It is also used by the [[KE11-F Floating Instruction Set]] option.

	Physically, it consists of a single [[DEC card form factor\|hex]] board, the M7238, which plugs into a pre-wired slot in the [[Central Processing Unit\|CPU]] [[backplane]], and also connects up to the basic CPU's [[microcode]] [[bus]] through three [[over the back]] 40-[[conductor]] [[flat cable]]s which plug into [[Berg connector]]s on the M7232 μWord card of the KD11-A.		Physically, it consists of a single [[DEC card form factor\|hex]] board, the M7238, which plugs into a pre-wired slot in the [[Central Processing Unit\|CPU]] [[backplane]], and also connects up to the basic CPU's [[microcode]] [[bus]] through three [[over the back]] BC08-R 40-[[conductor]] [[flat cable]]s which plug into [[Berg connector]]s on the M7232 μWord card of the KD11-A.

	The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)		The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)

Jnc: Add image

2019-09-19T01:30:25Z

Add image

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			[[Image:M7238KE11-EEIS.jpg\|350px\|thumb\|right\|M7238 card]]

	The '''KE11-E Extended Instruction Set''' is the optional [[PDP-11 Extended Instruction Set]] for the [[KD11-A CPU]] of the [[PDP-11/40]]; it implements multiply, divide, and multi-bit shift instructions. It is also used by the [[KE11-F Floating Instruction Set]] option.		The '''KE11-E Extended Instruction Set''' is the optional [[PDP-11 Extended Instruction Set]] for the [[KD11-A CPU]] of the [[PDP-11/40]]; it implements multiply, divide, and multi-bit shift instructions. It is also used by the [[KE11-F Floating Instruction Set]] option.

	Physically, it consists of a single [[DEC card form factor\|hex]] board, the M7238, which plugs into a pre-wired slot in the [[Central Processing Unit\|CPU]] [[backplane]], and also connects up to the basic CPU through three [[over the back]] 40-[[conductor]] [[flat cable]]s.		Physically, it consists of a single [[DEC card form factor\|hex]] board, the M7238, which plugs into a pre-wired slot in the [[Central Processing Unit\|CPU]] [[backplane]], and also connects up to the basic CPU's [[microcode]] [[bus]] through three [[over the back]] 40-[[conductor]] [[flat cable]]s which plug into [[Berg connector]]s on the M7232 μWord card of the KD11-A.

	The KE11-E includes its own [[microcode]] [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)		The KE11-E includes its own microcode [[Read-only memory\|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)

	==Further reading==		==Further reading==

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2018-12-16T14:05:19Z

+cat

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	* "KE11-E and KE11-F Instruction Set Options Manual", EK-KE11E-TM-002		* "KE11-E and KE11-F Instruction Set Options Manual", EK-KE11E-TM-002

			[[Category: PDP-11 Processors]]

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2018-05-08T04:07:04Z

A decent start

New page

The '''KE11-E Extended Instruction Set''' is the optional [[PDP-11 Extended Instruction Set]] for the [[KD11-A CPU]] of the [[PDP-11/40]]; it implements multiply, divide, and multi-bit shift instructions. It is also used by the [[KE11-F Floating Instruction Set]] option.

Physically, it consists of a single [[DEC card form factor|hex]] board, the M7238, which plugs into a pre-wired slot in the [[Central Processing Unit|CPU]] [[backplane]], and also connects up to the basic CPU through three [[over the back]] 40-[[conductor]] [[flat cable]]s.

The KE11-E includes its own [[microcode]] [[Read-only memory|ROM]], which produces an additional 24 bits width of microcode (to control the [[data path]]s and [[register]]s on the M7238), but also provides 44 bits of microcode to control registers and datapaths in the basic CPU. (The CPU's microcode is 56 bits wide; the other 12 bits are unused by the KE11-E, and are sent as 0's to the CPU.)

==Further reading==

* "KE11-E and KE11-F Instruction Set Options Manual", EK-KE11E-TM-002