Writing assembly procedures for higher level languages

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#4584

From: John Clinton Hall
Date: Thu, 24 Jan 1991 13:30

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AccordingtMicrosoft's _Mixed-Language Programming Guide_, "A procedure
caled from any of the Microsoft high-level languages should preserve the
values of SI, DI, SS, and DS (in additon to BP, which is already saved)." 
However, does one need to save the ES register if it is mdified?  How abo
the flags register?
-- 
The highest sounds are hardest to hear.  ## ## ## ##### ##  jhall@wpi.wpi.edu
Going forward is a way to retreat.       ## ## ## ## ## ##  Worcester
Great talent shows itself late in life.  ## ## ## ##### ##  Polytechnic
Even a perfect program still has bugs.   ######## ##    ##  Institute

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Message-ID: <1991Jan24.133054.8715@wpi.WPI.EDU>

Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!olivea!bu.edu!m2c!wpi.WPI.EDU!jhall

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!olivea!bu.edu!m2c!wpi.WPI.EDU!jhall
From: jhall@wpi.WPI.EDU (John Clinton Hall)
Newsgroups: comp.os.msdos.programmer
Subject: Writing assembly procedures for higher level languages
Message-ID: <1991Jan24.133054.8715@wpi.WPI.EDU>
Date: 24 Jan 91 13:30:54 GMT
Sender: jhall@wpi.WPI.EDU (John Clinton Hall)
Organization: Worcester Polytechnic Institute
Lines: 11