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From: feldy@CS.UCLA.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Calling IBM C from Assembler interrupt routine
Message-ID: <5145@shemp.ucla-cs.UCLA.EDU>
Date: Thu, 19-Mar-87 19:59:08 EST
Article-I.D.: shemp.5145
Posted: Thu Mar 19 19:59:08 1987
Date-Received: Sat, 21-Mar-87 07:23:12 EST
Sender: root@ucla-cs.UCLA.EDU
Reply-To: feldy@CS.UCLA.EDU (Bob Felderman)
Distribution: world
Organization: UCLA Computer Science Department
Lines: 16

I'm writing an interrupt routine on PC-AT and I want to call a C function from
the assembler code.  Does anyone have some "canned" code to set up the
stack and other pointers before calling the C routine? My current attempt
calls the C routine and then fails with a stack overflow.

I'm using Microsoft Assembler and IBM C version 1.0. This version of C is
roughly Microsoft C version 3.0 with "enhancements".

Thanks in advance.


Bob Felderman
3732L Boelter Hall	         feldy@ats.ucla.edu
University of California    ...!{trwspp,sdcrdcf,ihnp4,ucbvax}!ucla-cs!feldy
Los Angeles, CA 90024
(213) 825-2841