EXP Exchange Rabbit 4000 Instruction Opcode Instruction Clocks Operation ED D9 EXP 4(2,2) PW <-> PW' PX <-> PX' PY <-> PY' PZ <-> PZ' Flags ALTD IOI/IOE S Z L/V C F R SP S D - - - - Description Exchanges PW, PX, PY and PZ with their respective alternate registers, PW', PX', PY' and PZ'.
ED D9
EXP
4(2,2)
PW <-> PW' PX <-> PX' PY <-> PY' PZ <-> PZ'
Exchanges PW, PX, PY and PZ with their respective alternate registers, PW', PX', PY' and PZ'.