SPI Common Extensions Manual

SPI Common Extensions Manual—427508-001
4-1
4 ZCOM Data Definitions
This section lists the standard token-naming conventions, the ZCOM tokens, and other
ZCOM data definitions.
For ZCMK and ZCDG definitions, see Appendix B, ZCMK Definitions, and Appendix C,
ZCDG Definitions, respectively.
For more information about the DDL used to express these definitions, see the Data
Definition Language (DDL) Reference Manual or the SPI Programming Manual .
Naming Conventions
SPI data definitions, such as defined constants, structures, token codes, and token
maps, have names of the form:
subsys
consists of four alphanumeric characters that identify the subsystem responsible
for the definition. In all declarations supplied by Compaq, the first character of
subsys is the letter Z.
type
is a three-character mnemonic that identifies the type of the item. Mnemonics in
current use and the items they represent are:
subsys-type-description
CMD Command numbers
DDL Data Definition Language (DDL) data structure definitions
ENM Level 89 items in an enumerated declaration
ERR Error numbers
EVT Event numbers
MAP Extensible structured token maps
OBJ Object-type numbers
SSN Subsystem numbers
TDT Token data types
TKN Token codes
TNM Token numbers
TYP Token types
VAL Token values