COBOL Manual for TNS/E Programs (H06.08+, J06.03+)

Figure 33 Code and Data Blocks
These compilers also produce one object file per compilation unit:
• TNS HP C
• TNS HP C++
• FORTRAN
• Pascal
• TAL
• Native (TNS/R and TNS/E) HP C
• Native (TNS/R and TNS/E) HP C++
• pTAL
The object file contains one relocatable code block for each procedure and zero or more data
blocks.
How One Code Block Calls Another
At the source program level, one program calls another with a CALL or ENTER statement; at the
object program level, the calling program’s code block calls the called program’s code block.
A CALL statement calls another COBOL program. Each CALL statement in a compilation unit makes
either an internal reference (calling another program in the compilation unit) or an external reference
(calling a program that is not part of the compilation unit). In Figure 34, the first CALL statement
makes an internal reference, and the second CALL statement makes an external reference.
An ENTER statement calls a non-COBOL program. Each ENTER statement makes an external
reference.
Concepts and Terms 813