Path: ...!feeds.phibee-telecom.net!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro Newsgroups: comp.arch Subject: Re: Misc: Applications of small floating point formats. Date: Sat, 3 Aug 2024 21:09:43 -0000 (UTC) Organization: A noiseless patient Spider Lines: 15 Message-ID: References: <61e1f6f5f04ad043966b326d99e38928@www.novabbs.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Sat, 03 Aug 2024 23:09:43 +0200 (CEST) Injection-Info: dont-email.me; posting-host="461a22efc661e416b053d4dcc2a44527"; logging-data="3822192"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/GAwR7phaGEUXaj24oTA9s" User-Agent: Pan/0.159 (Vovchansk; ) Cancel-Lock: sha1:61cBQ3gqtCdjMb/Kerb4SklaM1Q= Bytes: 1727 On Sat, 3 Aug 2024 11:40:23 +0200, Terje Mathisen wrote: > MitchAlsup1 wrote: > >> So, you have identified the problem:: 8-bits contains insufficient >> exponent and fraction widths to be considered standard format. Thus, in >> order to utilize 8-bit FP one needs several incarnations. >> This just points back at the problem:: FP needs at least 10 bits. > > I agree that fp10 is probably the shortest sane/useful version, but > 1:3:4 does in fact contain enough exponent and mantissa bits to be > considered an ieee754 format. The AI folks are quite happy with 8-bit floats for many applications. In fact, they prefer more exponent bits and fewer in the mantissa.