<> <> <> <> DIRECTORY PrincOps USING [zMISC, aRPRINTER, aWPRINTER]; Printer: DEFINITIONS = BEGIN OPEN PrincOps; ReadPrinter: SAFE PROC RETURNS [CARDINAL] = TRUSTED MACHINE CODE {zMISC, aRPRINTER}; WritePrinter: SAFE PROC [WORD] = TRUSTED MACHINE CODE {zMISC, aWPRINTER}; END.