Hi, I am studying about porting of GDB simulator to support MIPS ISA32 bit instrictions. I have come across the following statement in mips.igen file. :model:::mips32:mipsisa32: :model:::mips64:mipsisa64: What is the meaning of the above specified syntax and What 'mips32', 'mipsisa32' denotes. Can any one list out some documents on this syntax? Regards Monika