Re: [MiNT] GCC return register

[Paul Wratt <paul.wratt@gmail.com>]

On Wed, Nov 16, 2011 at 11:50 AM, Alan Hourihane <alanh@fairlite.co.uk> wrote:
> On 11/15/11 22:46, Vincent Rivière wrote:
>> Alan Hourihane wrote:
>>> What was the outcome of this topic as I can't see what happened in my
>>> thread archives.
>>
>> Finally we chose the compatible way:
>> - integers are returned into d0
>> - pointers are returned into d0 (not a0)
>> - float/doubles are returned into d0/d1 (not fp0)
>>
>> The above applies to m6800/m68020-60/m5475.
>> So mixing the libraries is now compatible (while not recommended). The
>> only exception is the "long double" type for ColdFire.
>>
>> The rule above is consistently used in the GCC libs, the MiNTLib and
>> PML. As a result POV-Ray (as a testcase) works fine when compiled for
>> the 3 targets.
>>
> O.k. thanks Vincent !
>
> Alan.
>
Thanks also, now I can look at producing updated libraries, for use
with cross-tools too (just did PCLinuxOS install of Vincents Oneiria
deb packages - recompile from source to come later)

Cheers for that..

Paul