.TITLE MC21.. STRING PROCEDURES FOR CORAL IN MACRO ; .IDENT /MC21../ ; .PAGE .SBTTL CLEAR OUT CHARACTER STRING (CLEAR) PROCEDURE ; CLEAR:: ; MOV 2(R5),R0 ;HOLD STRING ADDRESS CALL R$ADDRESS ;CHECK IF ADDRESS VALID IFERROR 140$ ;J IF INVALID ADDRESS ; CALL R$CLEAR ;CLEAR STRING ; ; PROGRAM EXIT 140$: RETURN ;RETURN TO CALLING PROGRAM ; ; ; .END ; ;