Accessing Main Storage: CORE › Change the Contents of Main Storage › Verify Storage Before a Change

Verify Storage Before a Change

Use the VER command with a CHG command to prevent an incorrect change to storage. This command verifies that the specified data is stored at the specified location. Specify the VER command as follows:

CORE=loc=VERdata

The data in a VER command is specified using the following formats:

C'chardata'— character data

X'hexdata'—hexadecimal data

Example

Verify that the NAME field contains JIM before changing it to JAY. If JIM is not in the NAME field, the change command is rejected, enter:

CORE='NAME'=VERC'JIM'=CHGC'JAY'