Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!exodus!appserv!sun!amdahl!starsoft!david
From: david@starsoft.hou.tx.us (Dave Lowrey)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Standard for long hex numbers? (Was: Re: Amiga and its memory map)
Message-ID: <david.0369@starsoft.hou.tx.us>
Date: 21 Feb 91 01:02:01 GMT
References: <2207@ria.ccs.uwo.ca> <18881@cbmvax.commodore.com> <887@cbmger.UUCP> <1991Feb14.063939.28350@zorch.SF-Bay.ORG>
Followup-To: comp.sys.amiga.hardware
Organization: Starbound Software Group
Lines: 54

In article <1991Feb14.063939.28350@zorch.SF-Bay.ORG> xanthian@zorch.SF-Bay.ORG (Kent Paul Dolan) writes:
>
>
>  daveh@cbmvax.commodore.com (Dave Haynie) writes:
>
> >Cheap-ass A3000 memory map:
> >
> >$ff010000-$ffffffff  Reserved
>
>  peterk@cbmger.UUCP (Peter Kittel GERMANY) writes:
>
> > I always have big difficulties reading such big hex numbers. Couldn't
> > there be developed a standard to insert delimiters as in long decimal
> > numbers (there all 3 digits) all 4 digits?
>
> > How about $ff01'0000 (or comma or hyphen instead of "'")?
>
> > We only would have to avoid the colon so that it couldn't be mixed up
> > with Intel-like segment addressing.
>
> > (And I myself would like to avoid comma and dot, because their use in
> > decimal numbers is already reverse in USA and Germany. That produces
> > big trouble enough, and I wouldn't like to cause such crap again with
> > hex numbers.)
>
> > Or is there already existing such a standard, only I don't know it and
> > nobody uses it?
>
> Yes, there does exist a very nice international standard for this
> purpose, and I suggest we adopt it posthaste! The ANSI/ISO standard for
> the Ada programming language defines numeric literals (in any base) to
> include underscore characters at arbitrary locations, which are only for
> human readability in source code, and are ignored by the compiler. Used
> every four hex characters, this makes Dave's table much more readable,
> and a lot easier to type from error free:
>
>
> Cheap-ass A3000 memory map:
>
> $_ff01_0000 - $_ffff_ffff   Reserved

Yuck!

Why not use spaces? Many debuggers and such allow them.
I understand that underscores are easier to parse, but it looks awfull.

ff01 0000  ff ab cc e1 .....

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These words be mine. The company doesn't care, because I am the company! :-)

      Dave Lowrey        |  david@starsoft.hou.tx.us
Starbound Software Group |
      Houston, TX        | "Dare to be stupid!" -- Weird Al Yankovic