martino@logitek.co.uk (Martin O'Nions) (01/21/91)
lorvig@gsg.UUCP (Don Lorvig) writes: > have been using void far interrupt routines for some time now. The >addresses of this routines are passed to a TSR which executes them. >Recently I began attempting to make this functions more complex. (They >merely set flags before). When I attempt function calls from within >these interrupt routines, strange behavior results. Probable causes are assumptions made by the C as to the state of segment registers, or stretching the stack beyond its intended length. I normally use an assembler interrupt handler, and call the compiled C after setting the stack and registers to appropriate values,changing them back afterwards. Mail me if you want details - I may be able to resurect some code if I dig deep enough. Martin -- DISCLAIMER: All My Own Work (Unless stated otherwise) -------------------------------------------------------------------------- Martin O'Nions Logitek Group Support martino@logitek.co.uk -------------------------------------------------------------------------- Down the drinking well / Which the plumber built her Aunt Mathilda fell / - We should buy a filter.... (Harry Graham - Ruthless Rhymes for Heartless Homes)
jvb7u@fermi.clas.Virginia.EDU (Jon Brinkmann) (01/24/91)
In article <martino.664466611@krypton> martino@logitek.co.uk (Martin O'Nions) writes: #lorvig@gsg.UUCP (Don Lorvig) writes: #> have been using void far interrupt routines for some time now. The #>addresses of this routines are passed to a TSR which executes them. #>Recently I began attempting to make this functions more complex. (They #>merely set flags before). When I attempt function calls from within #>these interrupt routines, strange behavior results. I've encountered similar problems. Many of the MSC routines will not work when used in a ISR or TSR. A good addition to your MSC manuals is an article on writing TSRs in MSC: Christian, Kaare, "Using MicroSoft C Version 5.1 to Write Terminate-and-Stay-Resident Programs", MicroSoft Systems Journal, September 1988, Volume 3, Number 5, pages 47 - 57. Jon -- Jon Brinkmann Astronomy Department Internet: jvb7u@Virginia.EDU University of Virginia UUCP: ...!uunet!virginia!jvb7u P.O. Box 3818 SPAN/HEPnet: 6654::jvb7u Charlottesville, VA 22903-0818
jvb7u@Virginia.EDU (Jon Brinkmann) (01/24/91)
In article <801@gsg.UUCP> lorvig@gsg.UUCP (Don Lorvig) writes:
#
# have been using void far interrupt routines for some time now. The
#addresses of this routines are passed to a TSR which executes them.
#Recently I began attempting to make this functions more complex. (They
#merely set flags before). When I attempt function calls from within
#these interrupt routines, strange behavior results.
I've encountered similar problems. Many of the MSC routines will not work
when used in a ISR or TSR. A good addition to your MSC manuals is an
article on writing TSRs in MSC:
Christian, Kaare, "Using MicroSoft C Version 5.1 to Write
Terminate-and-Stay-Resident Programs", MicroSoft Systems
Journal, September 1988, Volume 3, Number 5, pages 47 - 57.
The software examples in this article are available from SIMTEL in the
file PD1:<MSDOS.MSJOURNAL>MSJV3-5.ARC.
Jon
--
Jon Brinkmann Astronomy Department
Internet: jvb7u@Virginia.EDU University of Virginia
UUCP: ...!uunet!virginia!jvb7u P.O. Box 3818
SPAN/HEPnet: 6654::jvb7u Charlottesville, VA 22903-0818archer@stlvm2.iinus1.ibm.com ("Gary D. Archer") (01/26/91)
From: jvb7u@Virginia.EDU (Jon Brinkmann)
Message-ID: <1991Jan23.222037.3970@murdoch.acc.Virginia.EDU>
Date: 23 Jan 91 22:20:37 GMT
References: <801@gsg.UUCP>
<In article <801@gsg.UUCP> lorvig@gsg.UUCP (Don Lorvig) writes:
<#
<# have been using void far interrupt routines for some time now. The
<#addresses of this routines are passed to a TSR which executes them.
<#Recently I began attempting to make this functions more complex. (They
<#merely set flags before). When I attempt function calls from within
<#these interrupt routines, strange behavior results.
<
<I've encountered similar problems. Many of the MSC routines will not work
<when used in a ISR or TSR. A good addition to your MSC manuals is an
<article on writing TSRs in MSC:
<
< Christian, Kaare, "Using MicroSoft C Version 5.1 to Write
< Terminate-and-Stay-Resident Programs", MicroSoft Systems
< Journal, September 1988, Volume 3, Number 5, pages 47 - 57.
<
<The software examples in this article are available from SIMTEL in the
<file PD1:<MSDOS.MSJOURNAL>MSJV3-5.ARC.
Another good book is:
Writing DOS Device Drivers in C
"Phillip M. Adams/ Clovis L. Tondo"
Prentice Hall, 1990 ISBN 0-13-970864-2
Gary