Difference between revisions of "RK11 disk controller"

Revision as of 00:39, 17 May 2007

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The RK11 is the UNIBUS controller for the RK05 moving-head magnetic disk drive.

Register	Abbreviation	Address
Drive Status Register	RKDS	777400
Error Register	RKER	777402
Control Status Register	RKCS	777404
Word Count Register	RKWC	777406
Current Bus Address Register	RKBA	777410
Disk Address Register	RKDA	777412
Maintenance Register	RKMR	777414
Data Buffer Register	RKDB	777416

I know the octal data is correct, but I'm not sure about the mnemonics and the description.

Address	Data	Mnemonic	Description
1000	012700	MOV #177406,r0	Move the top of the address of the controller into r0
1002	177406		(constant)
1004	012710	MOV #177400,(r0)	Move 177400 into 177406
1006	177400		(constant)
1010	012740	MOV #000005,-(r0)	Move 5 into 177404
1012	000005		(constant)
1014	105710	TSTB (r0)	Test byte at 177404
1016	100376	BPL *-1	Jump backward if positive
1020	005007	CLR PC	Jump to zero

Address	Data	Mnemonic
1000	012700	MOV #177406, R0
1002	177406	(constant)
1004	012760	MOV xxxxxx, 000004(R0)
1006	xxxxxx	(disk ID number)
1010	000004	(index)
1012	012700	MOV #177406, R0
1014	177406	(constant)
1016	012710	MOV #177400, (R0)
1020	177400	(constant)
1022	012740	MOV #000005, -(R0)
1024	000005	(constant)
1026	105710	TSTB (R0)
1030	100376	BPL *-1
1032	005007	CLR PC

@@ Line 4: / Line 4: @@
 ==Device registers==
+{| border=1
+! Register !! Abbreviation !! Address
+|-
+|Drive Status Register          || RKDS || 777400
+|-
+|Error Register                 || RKER || 777402
+|-
+|Control Status Register        || RKCS || 777404
+|-
+|Word Count Register            || RKWC || 777406
+|-
+|Current Bus Address Register   || RKBA || 777410
+|-
+|Disk Address Register          || RKDA || 777412
+|-
+|Maintenance Register           || RKMR || 777414
+|-
+|Data Buffer Register           || RKDB || 777416
+|}