Guardian Application Conversion Guide

About This Guide
xviii 096047 Tandem Computers Incorporated
Section 2 provides details of some concepts associated with conversion. It expands on
the differences between C-series and D-series systems and provides a comparison of
C-series syntax with D-series syntax.
Section 3 describes how to convert a TAL application. This section also applies to a
COBOL85, C, or Pascal application that calls Guardian procedures.
Section 4 describes how to convert a COBOL85 application.
Section 5 describes how to convert a C application.
Section 6 describes how to convert a Pascal application.
Section 7 describes how to convert a TACL application.
Section 8 describes how to convert the parts of an application that are not described in
Sections 3 through 7. This section applies to TAL, COBOL85, C, Pascal, and TACL
applications.
Section 9 describes how to convert an application to run on TNS/R systems. This
section applies mainly to TAL programs; one subsection applies to C programs as
well.
Appendix A lists each C-series Guardian procedure and the corresponding D-series
Guardian procedure, if one exists.
Appendix B lists the C-series and D-series user-level system messages that an
application can read from $RECEIVE.
Appendix C describes compatibility between processes on C-series systems and
D-series systems in a network.
Appendix D describes the changes that you might have to make to your application
whether you want the D-series enhancements or not. For most applications, these
changes are not necessary.
Related Manuals The required and optional manuals are listed below and shown in Figure 1.
Required Manuals
The Introduction to D-Series Systems is an overview of features that are unique to the
D-series operating system.
The D-series Guardian Programmer’s Guide describes how to use the D-series Guardian
programmatic interface.
The Guardian Procedure Calls Reference Manual describes syntax and programming
considerations for C-series and D-series Guardian procedures.
The Guardian Procedure Errors and Messages Manual describes error codes, error lists,
system messages, and trap numbers for C-series and D-series Guardian procedures.
Required Distributed Systems Management (DSM) Manuals
The Subsystem Programmatic Interface (SPI) Programming Manual describes SPI and how
to use it in a DSM application.