Re: [hatari-devel] New SCC 85C30 support for MegaSTE/TT/Falcon

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 15.9.2023 10.55, Nicolas Pomarède wrote:
> Le 15/09/2023 à 01:23, Eero Tamminen a écrit :
> > > As you often use/work with linux for Atari, do you know if it uses SCC ?
> >
> > Hatari's partial SCC support has been enough to boot Linux on Falcon, 
> > but on TT it would require VME SCU support, that is still missing from 
> > Hatari.
> >
> > As you can see from this:
> > https://github.com/torvalds/linux/blob/master/arch/m68k/kernel/head.S#L2744
>
> Indeed, SCU support is far from complete,

Above comment was about Atari & Mac SCC support in Linux, not about VME SCU.

> vme.c is full of "TODO" ;)

Yeah, I wrote it just to be able to trace VME/SCU reg accesses, so that 
I could debug why Linux and TOS usage differences.  Actually 
implementing that autovector etc stuff was beyond me. :-)


	- Eero