Varying length character strings |
Two bytes of zeros. |
Fixed length character strings |
Blank |
Fullword or halfword integers |
Zero, unless zero is a valid value for that parameter
(such as OFFSET); then use –1 |
Doubleword integers (RELOC) |
Two words of zeros. |
Return and reason codes |
Zero parameter address |
Data buffers (AREA, XTLST) |
Doubleword of zero |
Lists (FILES, EXITS, OPTIONS) |
Fullword of zero |
Addresses |
Zero |
Tokens |
Fullword or doubleword of zero depending upon
the token length. DIALOG, WORKMOD, and EPTOKEN are 8 bytes; use a
doubleword |
WKSPACE (workspace) parameter |
Doubleword of zero |