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Groups > comp.arch.embedded > #27763
| From | Grant Edwards <invalid@invalid.invalid> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: Use of soft float? |
| Date | 2018-05-20 23:39 +0000 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <pdt0v8$huq$1@reader1.panix.com> (permalink) |
| References | <pdrgnm$6lg$1@solani.org> |
On 2018-05-20, Philipp Klaus Krause <pkk@spth.de> wrote: > While those who make heavy use of floating-point computations in > embedded sytems probably go for systems with hardware support for > floating-point calculations, there are plenty of systems without such > support out there. > And the existence of soft float implementations indicates that there is > a real need for doing floating-point computations on systems without > hardware floating-point support. I'd like to know a bit more about that. > > * What kind of computations do people use soft float for? Any real-world > examples? In my personal experience, all sorts of real-time process-measurement calculations (pressure, temperature, flow, etc.). > * Which types of soft float do they use? IEEE 32- or 64-bit? Low end systems often use 32-bit only. > Some other C standard-compliant type? Not that I've ever seen. > 16-bit IEEE? No. > Other 16-bit? IIRC, I've seen some custom 24-bit FP types. -- Grant
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Use of soft float? Philipp Klaus Krause <pkk@spth.de> - 2018-05-20 11:56 +0200
Re: Use of soft float? Dimiter_Popoff <dp@tgi-sci.com> - 2018-05-20 14:24 +0300
Re: Use of soft float? Clifford Heath <no.spam@please.net> - 2018-05-21 09:24 +1000
Re: Use of soft float? Dimiter_Popoff <dp@tgi-sci.com> - 2018-05-21 10:35 +0300
Re: Use of soft float? Clifford Heath <no.spam@please.net> - 2018-05-22 09:33 +1000
Re: Use of soft float? Grant Edwards <invalid@invalid.invalid> - 2018-05-20 23:39 +0000
Re: Use of soft float? David Brown <david.brown@hesbynett.no> - 2018-05-21 12:12 +0200
Re: Use of soft float? upsidedown@downunder.com - 2018-05-22 00:36 +0300
Re: Use of soft float? Grant Edwards <invalid@invalid.invalid> - 2018-05-21 21:49 +0000
Re: Use of soft float? upsidedown@downunder.com - 2018-05-22 01:41 +0300
Re: Use of soft float? Clifford Heath <no.spam@please.net> - 2018-05-22 09:39 +1000
Re: Use of soft float? David Brown <david.brown@hesbynett.no> - 2018-05-22 11:23 +0200
Re: Use of soft float? Luke A. Guest <laguest@archeia.com> - 2018-06-06 04:37 +0100
Re: Use of soft float? Reinhardt Behm <rbehm@hushmail.com> - 2018-06-06 12:54 +0800
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