H902 on-directive is ON on-stuff H903 on-stuff is home [ , resident-clause ] [ , new-clause ] H904 on-construct is directive-origin block-on-directive block directive-origin end-on-directive H905 block-on-directive is ON on-stuff BEGIN H906 end-on-directive is END ON H907 home is HOME ( variable )
or HOME ( template-elmt )
or ( processors-elmt )H908 template-elmt is template-name [ ( section-subscript-list ) ] H909 processors-elmt is processors-name [ ( section-subscript-list ) ]