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Reply-To: "Frank J. Lhota" <NOSPAM.FrankLho@rcn.com>
From: "Frank J. Lhota" <NOSPAM.FrankLho@rcn.com>
Newsgroups: comp.lang.ada
References: 
 <pan.2003.12.26.10.37.14.290567@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>
   <pan.2003.12.26.15.39.28.529093@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>
 <1072458199.346049@master.nyc.kbcfp.com>
 <pan.2003.12.26.17.08.27.898789@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>
 <pan.2003.12.26.17.27.26.494317@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>
 <3fec7c21$0$4764$61fed72c@news.rcn.com> <lnekul8ewd.fsf@nuthaus.mib.org>
 <4iBIb.8173$qS3.498@nwrdny03.gnilink.net>
 <1072883131.278899@master.nyc.kbcfp.com>
 <tQCIb.1395$x34.387@nwrdny02.gnilink.net>
 <1072891494.595791@master.nyc.kbcfp.com>
 <R5FIb.23183$tY5.8488@nwrdny01.gnilink.net>
 <1072899508.453543@master.nyc.kbcfp.com>
 <aBGIb.1657$x34.18@nwrdny02.gnilink.net>
 <1072906542.723974@master.nyc.kbcfp.com>
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 <pan.2004.01.01.05.20.08.516433@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>
 <bAXIb.28439$tY5.3073@nwrdny01.gnilink.net>
 <3ff44baf$0$4754$61fed72c@news.rcn.com>
 <o6YIb.8353$x34.4946@nwrdny02.gnilink.net>
Subject: Re: GNAT parameter passing, C-style?
Date: Thu, 1 Jan 2004 19:24:01 -0500
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Date: 2004-01-01T19:24:01-05:00
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"Hyman Rosen" <hyrosen@mail.com> wrote in message
news:o6YIb.8353$x34.4946@nwrdny02.gnilink.net...
> Frank J. Lhota wrote:
> > For functions with variable argument lists the "appropriate amount"
>  > will vary from call to call.
>
> Cetainly, but the caller always knows how much that is. For a call like
>      f(1, 2, 3)
> the caller can do (on the COBOL Processor(tm) :-)
>      subtract 3 from stack_pointer
>      move 1 to stack_pointer[1]
>      move 2 to stack_pointer[2]
>      move 3 to stack_pointer[3]
>      call f
>      add 3 to stack_pointer
> There's no need at all to process the parmeters from right to left.

Yes, but what about the callee?