On 10 January 2017 at 19:04, Iain Buclaw via Digitalmars-d < [email protected]> wrote:
> On 10 January 2017 at 09:22, Manu via Digitalmars-d > <[email protected]> wrote: > > Can any of the GDC guys comment on how difficult it would be to get this > > toolchain build script to include building GDC? > > > > https://github.com/SaturnSDK/Saturn-SDK-GCC-SH2 > > > > I have a mate who's hacking on the Saturn and wants to build one of my > > projects. > > It'd be a really great test for embedded D; fairly small realtime > target. I > > expect binary size to be a problem ;) > > Debian already has builds for SH4, there's just no druntime support. > Cool. Obviously, this is an SH2 toolchain, and it's baremetal, not linux. Not sure what c-runtime it uses, but probably not glibc. https://goo.gl/dznZIF > > But getting druntime working on it should be trivial enough. > I'm looking for just the BetterC experience, but druntime still seems somewhat necessary... what parts need to be implemented for BetterC to work well? - Fix core.stdc.* to handle the arch-specific bits for SH (just copy > from C headers). > - There's threadasm.S if you want to implement native fiber support, > otherwise you can fall back to ucontext_t. > I expect existing SH4 code should be mostly compatible, and a good headstart. Doesn't sound too bad. I'm not using fibers though. Does double == float on this platform? That might be interesting... > I think SH2 supports double, but it would be terminally slow... Is there a way to force double == float? What would that do to D?
