gtps1m3jSystem Macros

KEYCC-Change Protection Key

Use this system macro to modify a protected main storage area by an application program.

Format




label
A symbolic name can be assigned to the macro statement.

symbol1

GLOBALn
To unprotect the global area of n

APLn
To unprotect the application program area of n in permanent storage.

KEY=reg
Optional parameter. If coded, the general register specified will contain the protect key value. Valid registers are R1 through R7, R14, and R15.

KEYA=symbol2|(reg2)
Optional parameter. If coded, the address referenced will contain the protect key value. Valid registers are R1 through R7, R14, and R15.

Entry Requirements

R9 must contain the address of the ECB being processed.

Return Conditions

Programming Considerations

Examples

None.