parm_dch
((parm_dch != 0) \
&& (delete_character || parm_dch)) ? TRUE : FALSE;
SP_PARM->_dch_cost = NormalizedCost(TIPARM_1(parm_dch, 23), 1);
((parm_dch != 0) \
if (parm_dch) {
TIPARM_1(parm_dch, count),
PAIRED(parm_ich, parm_dch);