Article View: sci.electronics
Article #7264Re: MC68705 stack question
From: John Moore
Date: Fri, 14 Sep 1990 04:21
Date: Fri, 14 Sep 1990 04:21
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In article <1990Sep12.145331.6233@jts.com> gil@jts.com (gil) writes:
]
]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?
As far as I know, there is NO way to get access to the stack pointer.
It is not saved on interrupts, and there is no instruction to
store it.
--
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!anasaz!qip!john From: john@qip.UUCP (John Moore) Newsgroups: sci.electronics Subject: Re: MC68705 stack question Message-ID: <4522@qip.UUCP> Date: 14 Sep 90 04:21:00 GMT References: <1990Sep12.145331.6233@jts.com> Reply-To: john@qip.UUCP (John Moore) Distribution: na Organization: Anasazi Inc, Phoenix AZ Lines: 16