Re: [Qemu-devel] [PATCH v9 00/10] 8bit AVR cores

[Michael Rolnik]

1. AT90CAN - http://www.atmel.com/images/doc7679.pdf
        4. Memories
        Figure 4-2. Data Memory Map
        29. Register Summary
2. AT90USB - http://www.atmel.com/images/doc7593.pdf
        6. Atmel AVR AT90USB64/128 memories
        33. Register summary

in the "register summary" table you can see that some registers have both
memory address and io address and some only io address.



as for static, I will fix it.




On Tue, Jul 5, 2016 at 11:39 PM, Peter Maydell <address@hidden>
wrote:

> On 5 July 2016 at 21:31, Michael Rolnik <address@hidden> wrote:
> > Hi Peter,
> >
> > <quote>
> >     You're probably better off having the device in one
> >     patch and the board model in another, rather than combining them.
> >
> >     Generally, device models don't live in hw/<arch>, only board
> >     models. Put the device model in the appropriate subdirectory
> >     of hw/, which is 'misc' for this one.
> >
> >     So what actually is this device? Is it something that
> >     corresponds to real hardware, or to some other emulator's
> >     debug/test device, or something we've just made up?
> >     This is a good place to put a comment answering this kind of
> >     question (with links or references to documentation if relevant).
> > </quote>
> >
> > as far as I understand from AVR specs each board has its own mapping of
> IO
> > registers, so this sample_io device is a part of the board itself.
> > Generally a device, as I see it, can be put on any board regardless of
> CPU,
> > here in AVR some IO registers are mapped into CPU registers.
> > So it makes it a part of the architecture itself.
>
> Do you have a link to the specs that define how this works?
>
> > <quote>
> >     If you order things the other way up you won't need all these
> >     forward declarations.
> > </quote>
> >
> > I am compiling on MAC, and gcc/clang keeps complaining that the function
> do
> > not have declaration, regardless of their order.
>
> This sounds like you haven't been marking functions local
> to the file as "static". The compiler will complain if
> you have a function that's not static and doesn't have a
> prototype, because it expects you to have put a prototype
> in a header so other source files can access it.
>
> thanks
> -- PMM
>



-- 
Best Regards,
Michael Rolnik