This is the mail archive of the
newlib@sourceware.org
mailing list for the newlib project.
Re: I query about quality of SuperH-port of newlib
- From: Israel Jacquez <mrkotfw at gmail dot com>
- To: johtobsch at gmail dot com
- Cc: newlib at sourceware dot org
- Date: Wed, 17 Oct 2018 11:52:51 -0700
- Subject: Re: I query about quality of SuperH-port of newlib
- References: <e9t04hej6bd6607899l65s0r.1539802052708@gmail.com>
On Wed, Oct 17, 2018 at 11:47 AM Johann-Tobias Schäg <johtobsch@gmail.com>
wrote:
> Hello,
>
> I am looking for a demonstration idea for the "new" J-Core cpu
> architecture which is actually just open source implementation of a
> slightly modified SuperH (whose patents expired).
> I was thinking about porting eLua which depends on newlib.
> What SH versions do you support?
> (SH1, SH2, SH3, SH4, SH2a)
>
I've been able to use Newlib just fine on SH-2 (Sega Saturn, no MMU).
Though, 90% of the functionality from Newlib is beyond the scope of the
hardware.
> If not what would be necessary to port it to J2 (being SH2 + new atomic
> CAS Instruction + back ported shift instructions from SH3)
> Does newlib depend on features which require an mmu?
>
Please correct me if I'm wrong, but there's a way to override syscalls,
specifically *sbrk()?
Sincerely Johann-Tobias Schäg
>
>
>