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The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
RTNCODE-SIZE Details (↑ Object Code)
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The possible values of integer are:
2 PIC S9(4) COMP: size 2 bytes, aligned on a 2-byte boundary.
4 PIC S9(8) COMP: size 4 bytes, aligned on a 4-byte boundary.
If a program with a 4-byte RETURN-CODE calls a program with a
2-byte RETURN-CODE, then on return the value from the called
program is in the lower two bytes of the 4-byte RETURN CODE. The
content of the upper two bytes is undefined.
If a program with a 2-byte RETURN-CODE calls a program with a
4-byte RETURN-CODE, then on return the lower two bytes of the
value from the called program are in the 2-byte RETURN-CODE. The
content of the upper two bytes is lost.
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