MC68705 stack question

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Article #7160

#7160

From: gil
Date: Wed, 12 Sep 1990 14:53

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1373 bytes

I am currently working with the Motorola 68705 uP and have noticed the
absence of stack operation instructions (push/pop etc.).

Does anyone have any ideas about gaining access to the stack pointer,
i.e. is it shadowed in RAM somewhere or are there any undocumented
op-codes to do this?

+-----------------------------+-------------------------------------------+
| Gil Hauer, Tech Noir Inc.   |       gil@jtsv16.jts.com                  |
| Toronto +1 416 653-8276     |  or:  uunet!jtsv16!gil                    |
+-----------------------------+-------------------------------------------+
  Opinions expressed herein are solely my own and any resemblance to 
those of my employers or clients (living or dead) is purely coincidental.

-- 
+-----------------------------+-------------------------------------------+
| Gil Hauer, Tech Noir Inc.   |       gil@jtsv16.jts.com                  |
| Toronto +1 416 653-8276     |  or:  uunet!jtsv16!gil                    |
+-----------------------------+-------------------------------------------+

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!jtsv16!gil

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!jtsv16!gil
From: gil@jts.com (gil)
Newsgroups: sci.electronics
Subject: MC68705 stack question
Message-ID: <1990Sep12.145331.6233@jts.com>
Date: 12 Sep 90 14:53:31 GMT
Distribution: na
Organization: Tech Noir Inc., Toronto, Canada
Lines: 20