I've found the MMIX port to be a good place to start. It's a bit old but the archtecture is nice and simple and the implementation nice and brief. Watch out though as it is a pure 64 bit machine - you'll need to think SI every time you see DI.
The trick past there is to compare the significant features of your machine with existing machines. For example, GCC prefers a 68000 style machine with a set of condition codes, however many machines only have one condition flag that changes meaning based on what you are doing. -- Michael 2009/6/6 Graham Reitz <grahamre...@gmail.com>: > > Is there a machine description template in the gcc file source tree? > > If there is also template for the 'C header file of macro definitions' that > would be good to know too. > > I did a file search for '.md' and there are tons of examples. Although, I > was curious if there was a generic template. > > graham >
