void
do_unshift(ary,arglast)
register ARRAY *ary;
int *arglast;
{
    register STR **st = stack->ary_array;
    register int sp = arglast[1];
    register int items = arglast[2] - sp;
    register STR *TARG;
    register int i;

    aunshift(ary,items);
    i = 0;
    for (st += ++sp; i < items; i++,st++) {
	TARG = Str_new(27,0);
	str_sset(TARG,*st);
	(void)astore(ary,i,TARG);
    }
}