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APAR NUMBER:  PJ29692                         
PRODUCT:  TPF4
FUNCTIONAL AREA:  ISO-C SUPPORT
SHIPPED IN PUT:  19
 

ABSTRACT:
This APAR provides two assembler macros to set up the compiler
interface between an assembler program and a C/C++ function being
called by the assembler program.
 
APAR CONTENTS:
FEATURE   TYPE                STATUS    NAME                              
Base      Macro               New       macro/callc.mac
Base      Macro               New       macro/cproc.mac
Base      Object              Changed   obj/oco/cdechx40.o
Base      Object              Changed   obj/oco/chexdc40.o
 
PREREQUISITE APARS:  To be applied in order listed.
None.
 

COMMENTS:
When an assembler program calls a C/C++ function, it needs to set up
register R1 to point to a parameter list containing the arguments to be
passed to the C/C++ function. If TPF can provide one or more macros to
set up the parameter list, the application program does not have to set
up R1 to point to the parameter list.
 

SOLUTION:
TPF is providing the CPROC and CALLC macros to enable an assembler
program to pass parameters to a C/C++ function without having to set up
the appropriate compiler interface with the C/C++ function. The CPROC
macro defines the C language data type of the parameters, and the CALLC
macro generates the code needed to enter the C/C++ function. For more
information about these macros, see TPF General Macros.
 
 

DEPENDENCIES
 
SEGMENTS TO BE ASSEMBLED OR COMPILED:
None.
 
SEGMENTS TO BE LINK EDITED:
ciso40.exe (Shipped in Tar File)
 
COREQS:
None.
 

MIGRATION CONSIDERATIONS:
None.
 
UPDATED INFORMATION UNITS:
TPF General Macros
 
See your IBM representative if you need additional information.
 

DOWNLOAD INSTRUCTIONS:
http://www.ibm.com/software/htp/tpf/pages/maint.htm
 
-- END APAR PJ29692
 


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