Hello. With your helps, I could port first draft version of GCC. Thank you all. Now, I port 2nd version. At first, I ported with mips descriptions. But now i port from scratch while reading chapter 17 in GCC Internals. Now, I'm at TARGET_LEGITIMATE_ADDRESS_P. But i cannot how to define this Hook because i can not find any examples that define 'TARGET_LEGITIMATE_ADDRESS_P'. every port defines GO_IF_LEGITIMATE_ADDRESS which is deprecated instead TARGET_LEGITIMATE_ADDRESS_P. Have a good day Eunchan
