ER      sta_tsk ( ID tskid, VP_INT stacd );

 ER      ista_tsk ( ID tskid, VP_INT stacd );

 MOVW    BC, #stacd_lo

 MOVW    DE, #stacd_hi

 MOV     A, #tskid

 CALL    !!_sta_tsk

 MOVW    BC, #stacd_lo

 MOVW    DE, #stacd_hi

 MOV     A, #tskid

 CALL    !!_ista_tsk

 ID      tskid;

 VP_INT  stacd;