Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro Newsgroups: comp.os.linux.misc,alt.folklore.computers Subject: Re: The "Good" Old Days - Complete Specs for DX-10 Operating System Date: Wed, 2 Oct 2024 22:28:39 -0000 (UTC) Organization: A noiseless patient Spider Lines: 10 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Thu, 03 Oct 2024 00:28:39 +0200 (CEST) Injection-Info: dont-email.me; posting-host="319a655577b0d958d85bd19ad5bdfbec"; logging-data="3576083"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18Bd1gliNZyv8cQ5ONKoEAN" User-Agent: Pan/0.160 (Toresk; ) Cancel-Lock: sha1:50jwqCfsVdbn6cEjutE78Pzl89k= Bytes: 1580 On Wed, 2 Oct 2024 17:59:40 +0100, The Natural Philosopher wrote: > The 6502 was an excellent little beast. I never programmed one myself, > but I know people who did, and my friend who worked on the original > Acorn machines said it was pretty fast compared with a Z80 etc The 6502 got its speed by restricting itself to 8-bit addressing in a lot of places. E.g. the stack was limited to 256 bytes and had to be located in memory page 1. The Z80, on the other hand, allowed for full 16-bit addresses in a lot more places.