‘guest to host’ translation. ‘EBCDIC’ can be abbreviated as ‘E’.

RESET

Reset the internal user tables to binary zero.

TEST

Verify that user tables are transparent, i.e. the value at position n in g2h used as an
index into h2g will return a value equal n (g2h<=>h2g, h2g<=>g2h).

ASCII

The target for the command is the ASCII table. The ASCII table refers to the ‘host
to guest’ translation. ‘ASCII’ can be abbreviated as ‘A’.

G2H

This is the same as ‘EBCDIC’.

H2G

This is the same as ‘ASCII’.

pos

Specifies the hex position within the selected table.

val

Specifies the hex value for the selected position.

filename

Specifies the file name of the file to which the specified codepage has to be expor-
ted or from which the codepage table has to be imported.

codepage

Specifies the codepage that has to be copied to the user tables.

5.17.4 Examples

Example 1:

Copy the Hercules default codepage to the user tables, alter the ASCII user table and activate the user
tables.

CP_UPDT REFERENCE DEFAULT

CP_UPDT ALTER ASCII (5B,C0,5D,D0,7B,AD,7D,BD)

CODEPAGE USER

5.18 CPUIDFMT (Set format BASIC / 0 / 1 STIDP generation)

5.18.1 Function

The CPUIDFMT system parameter sets the STORE CPU ID (STIDP) format bit. The default STIDP for-
mat, if not explicitly set, is 'BASIC'. The format bit of the STIDP information specifies the format of the first
two digits of the CPU identification number. When the format bit is ‘0’ then the contents of the CPU
identification number identifies the CPU. When the format bit is ‘1’ then the CPU identification number
identifies the system configuration as opposed to an individual CPU in the configuration and it identifies
the logical partition in which the program is executed.

When the format is ‘BASIC’ the CPU identification number has the following hexadecimal format, where
'A' is the CPU address of the CPU.

When the format is ‘0’ the CPU identification number has the following hexadecimal format where 'L' is a
logical CPU address and 'P' is a logical partition identifier.

When the format is ‘1’ the CPU identification number has the following hexadecimal format where 'PP' is
the user partition identifier (UPID). The UPID is an eight bit unsigned binary integer bound to a logical
partition.

In all cases n is a digit derived from the serial number of the CPU.

For more information on the STORE CPU ID (STIDP) instruction and the format bit see IBMs "z/Architec-
ture Principles of Operation" manual.

5.18.2 Syntax

Descriptive

Diagram

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