From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Mart van de Wege Newsgroups: comp.lang.ada Subject: Re: Forth and others (Was Re: How to get Ada to ?cross the chasm??) Date: Sun, 13 May 2018 12:21:19 +0200 Message-ID: <86fu2v3lgg.fsf@gaheris.avalon.lan> References: <87h8njmk4r.fsf@nightsong.com> <87po27fbv9.fsf@nightsong.com> <87in7x62vw.fsf@nightsong.com> <878t8szdtk.fsf@nightsong.com> <87tvrdhl5v.fsf@nightsong.com> <87sh6w7mac.fsf@nightsong.com> <874ljcthwk.fsf@nightsong.com> <7ebffd54sqr4keref28a9afllq4aj293kh@4ax.com> <87vabsmdoa.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain X-Trace: individual.net eBBiyAQL0qWLtGSiMd9gxwU+dCxSdPU+QbcbtqFz98zdZQ06Wb X-Orig-Path: gaheris.avalon.lan!not-for-mail Cancel-Lock: sha1:jQW/s0DCcdEoP16XycswW39atLE= sha1:g3b7D50HIhAxY8rhxkNZ/TEhStg= User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) Xref: reader02.eternal-september.org comp.lang.ada:52334 Date: 2018-05-13T12:21:19+02:00 List-Id: Paul Rubin writes: > Dennis Lee Bieber writes: >> 6502 could access the first page using an 8-bit immediate offset. > > Ah ok, similar but not quite the same issue. Thanks. I never > programmed the 6502 in assembler but I remember people who did > discussing putting the frequently accessed stuff on the first page, due > to hoops needed to get to the higher pages. (I have done 6502 assembly programming) Not really hoops. The 6502 could do direct indexed addressing, it's just that using the zero-page methods were faster and more flexible. Mart -- "We will need a longer wall when the revolution comes." --- AJS, quoting an uncertain source.