Re: FIG-Forth on CP/M

From	"Ed" <invalid@nospam.com>
Newsgroups	comp.lang.forth
Subject	Re: FIG-Forth on CP/M
Date	2012-07-11 14:10 +1000
Organization	Aioe.org NNTP Server
Message-ID	<jtiuav$2ei$2@speranza.aioe.org> (permalink)
References	<13ba64a5-3977-4ce2-bbd1-d5648e0a8577@googlegroups.com> <jtgikf$hd7$1@speranza.aioe.org> <a634dhFr1bU1@mid.individual.net>

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vandys@vsta.org wrote:
> Ed <invalid@nospam.com> wrote:
> > BTW "block 0" doesn't *have* to start at track 0 sector 0.  By modifying
> > the disk r/w code you could, for example, have "block 0" begin at track 3.
>
> If memory serves, the user variable "off" was added to the requested block
> number.  So on a per-task basis you could hae different views of the same
> underlying disk.

That rings a bell.  Checking FORTH110.ASM the user variable was called
OFFSET which appears to be set by commands DR0 DR1.

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FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-09 08:49 -0700
  Re: FIG-Forth on CP/M "Elizabeth D. Rather" <erather@forth.com> - 2012-07-09 08:01 -1000
  Re: FIG-Forth on CP/M Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-07-09 13:18 -0500
  Re: FIG-Forth on CP/M "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-07-10 02:27 -0400
    Re: FIG-Forth on CP/M Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-10 18:40 +0000
      Re: FIG-Forth on CP/M Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-07-10 16:22 -0500
        Re: FIG-Forth on CP/M Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-11 01:08 +0000
  Re: FIG-Forth on CP/M "Ed" <invalid@nospam.com> - 2012-07-10 16:38 +1000
    Re: FIG-Forth on CP/M vandys@vsta.org - 2012-07-10 16:43 +0000
      Re: FIG-Forth on CP/M "Ed" <invalid@nospam.com> - 2012-07-11 14:10 +1000
        Re: FIG-Forth on CP/M vandys@vsta.org - 2012-07-11 15:56 +0000
    Re: FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-13 05:25 -0700
      Re: FIG-Forth on CP/M David Schultz <abuse@127.0.0.1> - 2012-07-13 18:10 -0500
      Re: FIG-Forth on CP/M "Ed" <invalid@nospam.com> - 2012-07-14 14:34 +1000
      Re: FIG-Forth on CP/M Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-14 11:13 +0000
      Re: FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-15 05:14 -0700
        Re: FIG-Forth on CP/M "Elizabeth D. Rather" <erather@forth.com> - 2012-07-15 08:31 -1000
          Re: FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-15 12:22 -0700
  Re: FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-10 04:41 -0700
    Re: FIG-Forth on CP/M albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2012-07-10 20:29 +0000
      Re: FIG-Forth on CP/M Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-10 21:20 +0000
      Re: FIG-Forth on CP/M "Ed" <invalid@nospam.com> - 2012-07-11 14:10 +1000
        Re: FIG-Forth on CP/M smp <stephen.m.pereira.sr@gmail.com> - 2012-07-11 04:15 -0700

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