Win32k Foating Point

[James Tabor]

Hi,
I've tooled up libm from http://www.netlib.org/fdlibm/ and a hacked
floatlib.c in lib/3rdparty. With -msoft-float added in win32k.rbuild,
it works. I built the lib separate on XP mingw build environment and I
compiled and ran a fp test program (tst-ieee754.c) than compared the
results with standard gcc. The results are almost the same. The thing
even boots and draws okay. Floatlib.c is very old and I will soon
start testing with SoftFloat to replace the gcc soft float math.

So,,,,, is it posiable to build our build environment (RosBE) to
support full soft-float? So we can avoid more source in ReactOS.....
Well, except libm.a ~ 93k.

or,,,

Just support the hardware floating point and move on........

Thanks,
James

[KJK::Hyperion]

James Tabor wrote:
> So,,,,, is it posiable to build our build environment (RosBE) to
> support full soft-float? So we can avoid more source in ReactOS.....

Oppose. Depending on -msoft-float will make a Visual C++ build
impossible. Let's find a code/library solution instead

[James Tabor]

Ok,
I've ported libm from http://www.netlib.org/fdlibm/ and working on
SoftFloat from http://www.jhauser.us/arithmetic/SoftFloat.html .  I
have the gcc libgcc wrapper files for SoftFloat too. I guess for VC we
can include wrappers..... I'm not a VC++ expert~.

Depends on Dr. Timo. We have the resources, now we need to plan
something for a later time once the basic Win32k Thread/Process, etc,
stuff is finishes or in a state of ~.

On Tue, Oct 28, 2008 at 11:51 AM, KJK::Hyperion [e-mail] wrote:
> James Tabor wrote:
> > So,,,,, is it posiable to build our build environment (RosBE) to
> > support full soft-float? So we can avoid more source in ReactOS.....
>
> Oppose. Depending on -msoft-float will make a Visual C++ build
> impossible. Let's find a code/library solution instead

Thanks,
James