Path: 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

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.
-- 
John Moore HAM:NJ7E/CAP:T-Bird 381 {ames!ncar!noao!asuvax,mcdphx}!anasaz!john 
USnail: 7525 Clearwater Pkwy, Scottsdale,AZ 85253 anasaz!john@asuvax.eas.asu.edu
Voice: (602) 951-9326         Wishful Thinking: Long palladium, Short Petroleum
Opinion: Support ALL of the bill of rights, INCLUDING the 2nd amendment!