Re: [cc65] Support for the EMMA II system?

On Wed, Apr 28, 2004 at 03:01:50PM +0300, Mats Byggmastar wrote:
> Just joined the list, as I found CC65 a couple of days ago.

Welcome!

> I've done some simple tests with the CC65 tools and found that the
> assembler and linker would be usable as is. However, it would be
> extremely cool to also be able to use the C compiler and parts
> of the standard librarys. Maybe someone has done something already
> for EMMA II ? If not, where would I start, making the appropriate
> changes in crt0.s and so on. Any hints and help would be
> appreciated.

You will have to come up with a memory layout, and generate a linker config
for it. With a linker config and a working crt0 file, you can start writing C
programs. But keep in mind that 1.5K of RAM is not much, there are C functions
with almost that size (the printf family of functions for example).

As for the crt0 file, the best approach would be to have a look at one of the
existing ones, for example that of the c16 (it's a good example because it is
rather small).

There is no documentation on "how to create the necessary code for a new
system", but the minimum requirements are rather small as said above.

If you have any more specific questions, feel free to ask.

Regards


        Uz


-- 
Ullrich von Bassewitz                                  uz@musoftware.de
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