DEFINITION MODULE ModXBTRV;
FROM SYSTEM IMPORT ADDRESS,WORD,BYTE,CODE,SWI,SETREG,GETREG,ADR,
		   AX,BX,DX,DS;
EXPORT QUALIFIED BTRV;
PROCEDURE BTRV (OP: CARDINAL; POS, DATA: ADDRESS; VAR DATALEN: CARDINAL;
				KBUF: ADDRESS; KEY: INTEGER): INTEGER;
END ModXBTRV.
