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Groups > comp.sys.apple2.programmer > #6079

Re: Typo in ProDOS refTechMan

From Colin Leroy-Mira <colin@colino.net>
Newsgroups comp.sys.apple2.programmer
Subject Re: Typo in ProDOS refTechMan
Date 2023-08-23 08:23 +0200
Organization A noiseless patient Spider
Message-ID <20230823082311.3dc76fb1@laptop-sigfox> (permalink)
References <20230822221945.4eb8a091@laptop-sigfox> <yubzg2iicr9.fsf@jpen.ca>

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Hi,

>I think you're right.  What ProDOS does is add 3 bytes to the return
>address to pass over the command-number and command-list-address, but
>the effect is that execution continues 6 bytes after the start of the
>JSR instruction.  I have read that page many times and never noticed
>that, probably because I understood what was going on with the
>return-address.

I only noticed it because I couldn't see it returning by looking for
its return point when adding 3 to the address where it was called :)
-- 
Colin
https://www.colino.net/

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Thread

Typo in ProDOS refTechMan Colin Leroy-Mira <colin@colino.net> - 2023-08-22 22:19 +0200
  Re: Typo in ProDOS refTechMan Jerry Penner <jerry+a2@jpen.ca> - 2023-08-22 22:49 -0600
    Re: Typo in ProDOS refTechMan Colin Leroy-Mira <colin@colino.net> - 2023-08-23 08:23 +0200
      Re: Typo in ProDOS refTechMan Oliver Schmidt <ol.sc@web.de> - 2023-08-23 07:38 +0000
        Re: Typo in ProDOS refTechMan Colin Leroy-Mira <colin@colino.net> - 2023-08-23 15:22 +0200
          Re: Typo in ProDOS refTechMan Jerry Penner <jerry+a2@jpen.ca> - 2023-08-24 00:06 -0600
            Re: Typo in ProDOS refTechMan Jeff Blakeney <CUTjeffrey_blakeney@yahoo.ca> - 2023-08-24 08:10 -0400
              Re: Typo in ProDOS refTechMan Michael J. Mahon <mjmahon@aol.com> - 2023-08-28 06:45 +0000
                Re: Typo in ProDOS refTechMan Jeff Blakeney <CUTjeffrey_blakeney@yahoo.ca> - 2023-08-28 08:28 -0400
                Re: Typo in ProDOS refTechMan Michael J. Mahon <mjmahon@aol.com> - 2023-08-31 18:54 +0000
                Re: Typo in ProDOS refTechMan Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2023-08-31 13:30 +1000
                Re: Typo in ProDOS refTechMan Michael J. Mahon <mjmahon@aol.com> - 2023-08-31 18:54 +0000
                Re: Typo in ProDOS refTechMan Antoine Vignau <ntn.vignau@gmail.com> - 2023-09-07 12:41 -0700
                Re: Typo in ProDOS refTechMan Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2023-09-05 12:14 +1000
  Re: Typo in ProDOS refTechMan qkumba <peter.ferrie@gmail.com> - 2023-08-28 10:23 -0700
    Re: Typo in ProDOS refTechMan Antoine Vignau <ntn.vignau@gmail.com> - 2023-08-28 12:29 -0700

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