In article <[email protected]>, Leo Smiers
<[email protected]> wrote:
> In message <[email protected]> Jim Lesurf
>           <[email protected]> wrote:
[snip]
> > 
> > I'm not sure if this is a rounding difference when turning doubles
> > into a displayable decimal, or due to something else. Anyone have any
> > idea or explanation?

> Could this have something todo with a different FP emulator? 

That may well be the case. I recall ensuring in the past that the
FPEmulator was IEEE compliant. (And that some versions were not.)

> If you compare the rpcemu output with a 'real' RISC PC' do you still
> have these differences?

At the moment I can't tell as I don't have a working RiscPC at home. My
checking that will have to wait until I can organise myself and take the
software 'to work' and try it there. Probably some time next week.

Alternatively, if you (or anyone else) is interested I can put !WAV_FFTScan
up on the web for others to try out and compare RPCEmu with a real RiscPC.

I'll also see if I can refind the IEEE routines I used to check in the
past, and give that a go on RPCEmu. Has anyone already done that?

At present I assume RPCEmu just used the default version of the FPE module
that came with RO4.02. I'll check when I get a chance. Although as I said,
the discrepency isn't enough to give me any problem or worry, just a curio.

Slainte,

Jim

-- 
Electronics  http://www.st-and.ac.uk/~www_pa/Scots_Guide/intro/electron.htm
Armstrong Audio  http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc  http://www.audiomisc.co.uk/index.html


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