EXTERNAL SIMPLE PROCEDURE ARYEL(INTEGER A);
EXTERNAL SIMPLE INTEGER PROCEDURE ARCOP(INTEGER A);

EXTERNAL SIMPLE PROCEDURE $GETB(INTEGER SIZ);
EXTERNAL SIMPLE PROCEDURE $DELB(INTEGER B);

EXTERNAL SIMPLE INTEGER PROCEDURE $FXSPC(INTEGER MXSIZ,OKSIZ,BKS);
EXTERNAL SIMPLE PROCEDURE $FXBLD(REFERENCE INTEGER CHN;INTEGER TEMPL);

EXTERNAL SIMPLE PROCEDURE $FSADD(INTEGER SPC);
EXTERNAL SIMPLE PROCEDURE $FSINS(REFERENCE INTEGER OWNR;INTEGER BLK);
EXTERNAL SIMPLE PROCEDURE $FUNLK(INTEGER BLK);