Hi all, I am new to this 'porting gcc to a new architecture' field. I have problem that I know there is CC mode for status register in GCC, but i don't know how to specify mode for a particular bit of the status register. Like for Carry bit only i want to specify the mode. How to do that. Please help me in this. I have written 'CC_MODE (CC_C);' in machine-modes.def file. And defined SELECT_CC_MODE macro in '.h' file also. But still error is undefined CC_C mode. I am using gcc-4.3.0. Regards, Rajiv Kumar -- View this message in context: http://old.nabble.com/specifying-mode-tp26673029p26673029.html Sent from the gcc - Help mailing list archive at Nabble.com.