MDFields: CEDAR DEFINITIONS =BEGINOneBit: TYPE = [0..1];Dti: TYPE = MACHINE DEPENDENT RECORD [	-- Dorado target instructiondti0 (0): DimWord0,dti1 (1): DimWord1,dti2 (2): DimWord2];DimWord0: TYPE = MACHINE DEPENDENT RECORD [rstk (0: 0..3): [0..17B],	-- RM address or stack controlaluf (0: 4..7): [0..17B],	-- ALU functionbsel (0: 8..10): [0..7],	-- BMux selectionlc (0: 11..13): [0..7],	-- T_ and R_ controlasel0thru1 (0: 14..15): [0..3]  -- AMux selection];DimWord1: TYPE = MACHINE DEPENDENT RECORD [asel2 (0: 0..0): OneBit,  	-- AMux selectionblk (0: 1..1): OneBit,	-- BLOCK or stack selection bitff (0: 2..9): [0..377B],	-- Function, constant, or extension for branch addressjcn (0: 10..15): SELECT OVERLAID * FROM	-- Jump control and addressjcnLocal => [jcLocal (0: 10..11): [0..3], jnLocal2thru5(0: 12..15): [0..17B] ],jcnGlobal => [jcGlobal (0: 10..11): [0..3], jnGlobal2thur5(0: 12..15): [0..17B] ],jcnLong => [jcLong (0: 10..13): [0..17B], jnLong4thru5(0: 14..15): [0..3B] ],jcnFast => [jcFast (0: 10..10): OneBit,jnFast2thru3 (0: 11..12): [0..3],jnFast5thru6 (0: 13..14): [0..3],jcCond0 (0: 15..15): [0..1]],ENDCASE];DimWord2: TYPE = MACHINE DEPENDENT RECORD [jcn6thru7 (0: 0..1): [0..3],	 -- bottom two bits of Jump control and addressbrkP (0: 2..3): [0..3],		-- Breakpoint (bad parity) bitsblank (0: 4..15): [0..7777B] _ 0];jcLocalValue: WORD = 2;jcLongValue: WORD = 0;jcGlobalValue: WORD = 3;jcFastValue: WORD = 0;-- IFUM layoutTifum: TYPE = MACHINE DEPENDENT RECORD[tifum0 (0): TifumWord0,tifum1 (1): TifumWord1];TifumWord0: TYPE = MACHINE DEPENDENT RECORD[pa (0: 0..5): [0..77B],		-- only uses low bitnotIFADr2 (0: 6..15): [0..1777B]	-- not (address rshift 2)];TifumWord1: TYPE = MACHINE DEPENDENT RECORD[sgn (0: 0..0): OneBit,iPar (0: 1..3): [0..7B],notLength (0: 4..5): [0..3],notRBaseB (0: 6..6): OneBit,memB (0: 7..9): [0..7B],notTPause (0: 10..10): OneBit,notTJump (0: 11..11): OneBit,nValue (0: 12..15): [0..17B]];END.    ô  MDFields.mesaCopyright c 1986 by Xerox Corporation.  All rights reserved.Willie-Sue, May 6, 1986 1:18:56 pm PDTmicroinstruction field definitions for MicroD, ONLY for Dorado Model 1Dorado Instruction Memory wordsJCN format valuesÊˆ  ˜ šœ™Icodešœ
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