On Mon, Oct 02, 2006 at 12:42:04PM +0200, Wolfgang Mües wrote: > Now it's time to give a big "thank you" to all persons involved, > ecpecially Rask Ingemann Lambertsen with his invaluable help. > > As I started this project, I feared that I would never succeed, and > now ... the modified compiler is used about 3 month now, and DSLINUX > with this crude modification is working fine with 36 MBytes RAM > available, and has a good future now.
I'm glad to hear that it works. I have a few improvements I'd like to make, but for the next few months, my focus will be on getting my 16-bit x86 into GCC 4.3. You can take a look at the relout_outqi pattern. It uses two scratch registers: One for the address and one as a scratch register for swpb. It is worth investigating if you can safely trash the input operand, since the reason we have an output reload is because a pseudo register got a stack slot instead of a hard register. I.e. reload shouldn't expect the value in operand 1 to be preserved for use in a later insn. But I think a reload expert should comment on this. -- Rask Ingemann Lambertsen
