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Hi, I have a user submitted port of RTEMS to the PowerPC (IBM 403) and it uses some instructions (or alternate names) he added to his local gas. I am using binutils 2.6 configured for powerpc-elf. I know of the following based on the error messages: /usr1/tmp/cca004pL.s: Assembler messages: /usr1/tmp/cca004pL.s:54: Error: Unrecognized opcode: `mtsprg3' /usr1/tmp/cca004pL.s:56: Error: Unrecognized opcode: `mtsprg2' /usr1/tmp/cca004pL.s:131: Error: Unrecognized opcode: `mtexier' /usr1/tmp/cca004pL.s:137: Error: Unrecognized opcode: `mttsr' /usr1/tmp/cca004pL.s:143: Error: Unrecognized opcode: `mttsr' I am not a PowerPC expert by any definition. (OK I do own a few PowerPC manuals :).) What is the best thing for me to do? I see two options: 1. Merge his patches. 2. If possible, change the instruction names to standard ones. +----------------------------------------+--------------------------------+ | Joel Sherrill | Sr. Computer Scientist | | joel@merlin.gcs.redstone.army.mil | On-Line Applications Research | | Ask me about RTEMS: a free real-time | Huntsville AL 35805 | | multiprocessor executive! | (205) 883-0131 | +----------------------------------------+--------------------------------+