[M3devel] m3back/longint/atomics

[Jay K]

NT386/longint changes are almost entirely in the m3back package.

There is also some small easy stuff in m3-libs/m3core/src/Csupport/common/hand.c.

It'd be really great if anyone could test any of this and if

anyone could review the diff between release and head.

 

Not just me.

The changes for longint are quite large, even if local.

 

I can port them, in the case of m3back, just copy, and make sure

the atomics stuff doesn't cause problems (it should be unused).

There is also a small change in m3front so that longint can be initialized.

  That affects all platforms.

 

And a small change in m3cc/parse.c for div/mod of longint on non-NT386.

 I have to test mod yet but my fix probably helps it.

 

It'd be really great if anyone could do anything with this stuff.

 ie. for now in head, then could easily port to release.

 

We can of course release either way, depending on how satisfied people

are with 32bit longint on NT386. i.e. longint isn't useful portably, but it

is useful on non-NT386 platforms.

 

 - Jay


 
> Date: Tue, 16 Feb 2010 16:12:52 +0100
> From: wagner at elegosoft.com
> To: m3devel at elegosoft.com
> Subject: Re: [M3devel] m3back/longint/atomics
> 
> Quoting Jay K <jay.krell at cornell.edu>:
> 
> >
> > As far as I know/can remember, longint and atomics should all work 
> > now on NT386.
> >
> > Atomics only currently for 32bit types.
> > There are still a few small inefficiencies to maybe deal with.
> > I'll add 64bit shortly and maybe 8 and 16.
> >
> >
> > We should probably add *a lot* more test coverage in p226 and p227.
> >
> > e.g. longint multiply/add/sub/divide, not just insert/extract like I 
> > did a bunch of.
> 
> Any volunteers to increase the test coverage?
> 
> > Still to fix the Win32 m3core/libm3 to not always truncate file sizes.
> >
> > Still maybe to do something about rd/wr...?
> >
> > Still to wonder about NT386/longint support in the release branch?
> 
> Should we / will you merge this stuff to the release branch?
> Or should we release without it? How local are the changes?
> 
> Olaf
> -- 
> Olaf Wagner -- elego Software Solutions GmbH
> Gustav-Meyer-Allee 25 / Gebäude 12, 13355 Berlin, Germany
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> 
 		 	   		  
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