Path: csiph.com!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.lang.c++ Subject: Re: What does the "L" mean Date: Fri, 06 Dec 2019 22:20:54 -0800 Organization: A noiseless patient Spider Lines: 16 Message-ID: <86zhg44px5.fsf@linuxsc.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: reader02.eternal-september.org; posting-host="dc2463479761dea98da7667c87edc47e"; logging-data="15778"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19pPlBQTD6C8z0liMnqtusHfHCHDSeT+3w=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:7FVmsPYoUBHDKr0O8b+z8WefsCQ= sha1:q4lffXsDLQMuqOuuJB6FNqOepog= Xref: csiph.com comp.lang.c++:70326 Vir Campestris writes: > On 04/12/2019 09:20, T wrote: > >> 36 bit? My brain hurts > > I've used systems where the native word size is 16, 24, 32, 36 and 64 > bit. Other values are available :( [...] > > The one with 36 bits (DECSystem10) an address was the address of a > word, and you couldn't point to a character inside the word. The PDP-10 did have a format, and instructions that used that format, to access any contiguous set of bits within a 36-bit word. They were called, IIRC, byte pointers, and would serve perfectly well as a representation for 'char *' and 'void *'.