OP3
op3 = OP3(text[j]);
if (OP3(instructp) != JMPL)
conditional_expression { $$ = OP3($1, $3, $5); }
switch (OP3(instr)) {
uint32_t op3 = OP3(instr);
!(OP(instr) == 2 && OP3(instr) == OP3_RETURN)))