Zajerko-McKee, Nick wrote: > Hi, > > I'm trying to use the following opcodes: movz, movn, clo, clz, madd, msub on > both a 4KC and 4KeC core. What gas options should I use to get the above > opcodes to work (mips4? mips32?) With a modern toolchain: -march=mips32. > How would one link against closed source > libraries that were compiled for mips2? This will just work if you use a recent binutils version, and if the libraries are O32 ABI conformant. > Is there a list of what opcodes > correspond to the various ISA's and gas flags? The best reference I saw was > from fsf that just mentions the -mips1/-mips2/-mips3/-mips4. I did notice > in the latest gas docs -march option, -mips32 is retained as an alias for -march=mips32. > but I don't see that available in my > toolchain. I'm running on a development system with gas 2.9.5 and gcc 2.96. gas 2.9.5 is _very_ old. It might be possible to use "-mips4 -mgp32" for movn, movz, but I'm not sure if this actually works. For the other opcodes the toolchain is just too old. Thiemo
