Re: [hatari-devel] compiling with ahcc from Hatari and command line ?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 12/09/2023 à 15:06, Thomas Huth a écrit :
> On 12/09/2023 12.40, Nicolas Pomarède wrote:
> > Le 10/09/2023 à 23:53, Eero Tamminen a écrit :
> > > Hi,
> > >
> > > On 10.9.2023 16.33, Nicolas Pomarède wrote:
> > > > I'd like to check a change in some program included in Hatari's test 
> > > > directory.
> > > > .c files are compiled with ahcc and I wondered if there's a way to 
> > > > run the compilation from linux through hatari using the .TTP binary 
> > > > maybe ?
> > > >
> > > > for example I'd like to change/compile "scc_ser.c" from tests/serial 
> > > > and it would be much faster if I could do it from my pc with command 
> > > > line and not interacting with editor/menus.
> > >
> > > Assuming AHCC, project file and sources are in same directory, you 
> > > can use something like this:
> > > $ hatari-prg-args -m --cpulevel 3 --trace os_base  -- ahcc_p.ttp 
> > > mfp_ser.prj
> > >
> > > (With AHCC ST version, you can "drop --cpulevel 3".)
> >
> > Hi
> >
> > thanks for the infos, it worked.
> >
> > So, I added a sleep to scc_ser.c in main() :
> >
> >          Super(sp);
> >
> > +        sleep(2);
> >
> >          return 0;
>
> Why do you need a sleep here?

because in my tests I see that some bytes (1 or 2) can still be 
transferring by the SCC at the time scc_ser.prg exits, we need to wait a 
little to be sure all pending transfer are completed

> The VBL counter at $466 is maintained by TOS - i.e. this won't work with 
> FakeTOS. If you really need a delay, your best bet is likely to use " 
> stop #$2300 " to wait for VBLs in a loop.

I could use stop #$2300, but it's not very convenient from a .C program

So I committed a change to faketos.s to support a minimal VBL counter at 
$462 (will write in a different mail to keep track of this)

Nicolas