parm_down_cursor
parm_down_cursor = ABSENT_STRING;
parm_down_cursor = ABSENT_STRING;
SP_PARM->_cud_cost = CostOf(TIPARM_1(parm_down_cursor, 23), 1);
if (parm_down_cursor
TIPARM_1(parm_down_cursor, n))) {
scroll_fwd = parm_down_cursor;
ANDMISSING(parm_down_cursor, cursor_down);
if (PRESENT(parm_down_cursor)) {
list[count++] = parm_down_cursor;
EXPECTED(parm_down_cursor);