Using IBM Application Development Tools for z/OS and OS/390

446 Using IBM Application Development Tools for z/OS and OS/390

Now, how does convert/compile know the source and target language level and other

options? It inherits these options from the settings you provide in the Convert old 68/74

Standard COBOL to 85 Standard COBOL panel. Select from the DTU panel option 1. In this

sample we used:

Source language level ===> 3 OS/VS COBOL LANGLVL(1)

Target language level ===> 4 COBOL for OS/390

You also may overwrite the source level language level in the Edit data set name patterns

and other options panel. Use the help function to find out what the numbers mean, for

example, 3. You get to the Edit Data Set Name Patterns and Other Options panel by inserting

a / just in front of the Enter / to edit data set name patterns, and DB2 or CICS translation

options line.

Now exit (F3) out to the Program Preparation panel and select L link, to link your program.

Finally, run the program and use the Debug Tool to debug your converted application.

23.4 Convert old 68/74 COBOL to 85 COBOL

The CCCA conversion tool can be selected from the Program Preparation panel option C as

shown in Figure 23-8.

Figure 23-8 Choosing the option to do conversion only

Figure 23-9 shows the CCCA main panel.

Chapter 23. Compiling and converting old COBOL code with Debug Tool Utilities 447

Figure 23-9 CCCA Master Menu

Before we start converting an OS/VS COBOL program, let’s select the option 1.1.1 for

Environment. You will find the option (like jobcard and data set prefixes) preset with what we

already did in system and user settings as shown in 23.2.1, “Ensure that the Compiler and

Converter Settings are correct” on page 441.

Now go back to the CCCA Master Menu and choose O.2. This will bring you to the following

menu. For language, you can define the source language level and the target language level

as shown in Figure 23-10.

Figure 23-10 Language level options

448 Using IBM Application Development Tools for z/OS and OS/390

For Conversion, option 1, these options are output related and are like list formatting and

program generation options. Consider the following options to be adapted for your

installation, as seen in Figure 23-11:

򐂰 Re-sequence source lines

򐂰 Reserved word suffix

򐂰 Flag report writer statements (affects Report Writer programs)

򐂰 Remove value clauses in file/linkage sections (affects Report Writer programs).

Figure 23-11 CCCA Conversion options 1

For option 2 (Conversion), these options are conversion specific as shown in Figure 23-12.

Figure 23-12 CCCA Conversion option 2 panel