IBM OS/390 User Manual

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Table 38 on page 356 lists some migration considerations you should be aware
of when migrating from VS COBOL II.
Table 38. VS COBOL II Migration Considerations
Migration Consideration
Comments
Abends
In VS COBOL II, a severe unhandled error condition
always resulted in an abend. With OS/390 Language
Environment, you use the ABTERMENC run-time option
to specify whether a severe unhandled condition
results in an abend or a normal termination with a
return code and reason code. The IBM-supplied
installation value for the ABTERMENC run-time option
is ABTERMENC(RETCODE). To ensure that your
application ends with an abend when there is a severe
unhandled condition, specify ABTERMENC(ABEND).
Storage Report
The format of the run-time storage report generated
by the OS/390 Language Environment RPTSTG
run-time option is different from the format of the
storage reports produced by the VS COBOL II SPOUT
run-time option.
17.4.4 DOS/VS COBOL
DOS/VS COBOL is not an LE/VSE-conforming language. If your applications are
written in DOS/VS COBOL, you must update the source and compile with COBOL
for MVS & VM or COBOL for OS/390 & VM before you can run them under
OS/390. Refer to Chapter 12, “COBOL” on page 249 for further information.
Table 39 lists some migration considerations you should be aware of when
migrating from DOS/VS COBOL.
Table 39. DOS/VS COBOL Migration Considerations
Migration Consideration
Comments
Abends
In DOS/VS COBOL, a severe unhandled error condition
always resulted in an abend. With OS/390 Language
Environment, you use the ABTERMENC run-time option
to specify whether a severe unhandled condition
results in an abend or a normal termination with a
return code and reason code. The IBM-supplied
installation value for the ABTERMENC run-time option
is ABTERMENC(RETCODE). To ensure that your
application ends with an abend when there is a severe
unhandled condition, specify ABTERMENC(ABEND).
17.4.5 DOS PL/I
DOS PL/I is not an LE/VSE-conforming language. If your applications are written
in DOS PL/I, you must update the source and compile with PL/I for MVS & VM
before you can run them under OS/390. Refer to Chapter 15, “PL/I” on page 333
for further information.
Table 40 on page 357 lists some migration considerations you should be aware
of when migrating from DOS PL/I.
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VSE to OS/390 Migration Workbook