operand data address translation means coupled to said operand fetch unit for translating {HEAD ~ only logical addresses} for reading out data words stored in the MMU into {TAIL ~ corresponding real addresses} of the MMU 
into
operand data address translation means coupled to said operand fetch unit for translating { HEAD ~ only logical addresses } for reading out data words stored in the MMU into { TAIL ~ corresponding real addresses } of the MMU
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH