RegMuxSpec.tioga
Copyright Ó 1987 by Xerox Corporation. All rights reserved.
by Mark Ross April 1, 1987
Last Edited by: Ross April 1, 1987 11:25:44 am PST
Proposed Register Mux Specification:
AR0 AR1 INDEX
RAddr ← ARn, IBUFN, OPCODE<4>, K
WAddr ← ARn', IBUFN, OPCODE<4>, K
ARn' ← ARn, ARn +- 1, ARn +- INDEX, MUXBUS
INDEX ← INDEX, MUXBUS
MUXBUS ← IBUFN, OPCODE, K, D1<8>, AR0, AR1, INDEX
D1 ← MUXBUS (one of the RD1Addrs)
UpDate Options
AR0 AR1 INDEX #
+-1 +-1 NOP 2
+-1 NOP NOP 2
NOP +-1 NOP 2
+-INDEX +-INDEX NOP 2
+-INDEX NOP NOP 2
NOP +-INDEX NOP 2
MUXBUS NOP NOP 1
NOP MUXBUS NOP 1
NOP NOP MUXBUS 1
Total UCode Bits
RAddr/WAddr = 4
UpDate = 4
MuxBus = 3
——————————————
Total = 11