Re: Cross compiling

[Francesco Ariis]

Il 28 febbraio 2021 alle 19:06 Bernd Paysan ha scritto:
> Am Sonntag, 28. Februar 2021, 19:02:17 CET schrieb Francesco Ariis:
> > Il 28 febbraio 2021 alle 18:51 Bernd Paysan ha scritto:
> > > Am Sonntag, 28. Februar 2021, 17:04:16 CET schrieb Francesco Ariis:
> > > > I was reading the manual section on cross-compiling [1], but the
> > > > documentation seems a bit outdated (e.g. `kernl-8086.fi` target is not
> > > > present in my `gforth-0.7.3`).
> > > 
> > > Yes, it is. It's a kernl-%.fi: target. It will expand to
> > > 
> > > ./preforth -p ".:~+:." -e 's" arch/8086/mach.fs"' ./kernel/main.fs -e
> > > "save- cross kernl-8086.fi- /usr/local/bin/gforth-0.7.3 bye"
> > 
> >     f@extensa:~/spool/gforth-0.7.3_$ make kernl-8086.fi
> >     make: *** No rule to make target 'kernl-8086.fi'.  Stop.
> > 
> > Gforth 0.7.3 downloaded from https://gforth.org/ , running on Debian
> > Buster
> 
> Did you build the hosting Forth?  You need to run
> 
> ./configure; make
> 
> first.

I did. Maybe this output can be helpful in diagnosing:

    f@extensa:~/spool/gforth-0.7.3_$ ls arch/
    386     6502   amd64  generic  ia64  mips  power  sharc   sparc
    4stack  alpha  arm    hppa     m68k  misc  r8c    shboom

> > > For such older hardware, you need to port an assembler and the primitives
> > > (which is exactly what Klaus Kohl-Schöpe did for the 8086).
> > 
> > Pardon the naïvete, but what does «port an assembler» mean? Write (on
> > my host machine) an assembler that works on the target machine?
> 
> You don't have to write one, because for Z80, there already are existing 
> Forth 
> assemblers out there.  The problem nowadays is more to find this old code ;-).

Thanks. I would like to port Forth to some hardware and wanted to know
the fastest way to a working interpreter.