GET_OPERAND
GET_OPERAND(srdr, opc);
GET_OPERAND(srdr, v);
GET_OPERAND(srdr, v);
GET_OPERAND(srdr, v);
GET_OPERAND(srdr, v);
GET_OPERAND(srdr, v);
GET_OPERAND(srdr, f_name);
GET_OPERAND(srdr, l_name);
#define TERP_GET_OPERAND(v) GET_OPERAND(&terp->srdr, (v))