TVA_RUNTIME

The tagged value is read-write at all times.

0

TVA_DEVELOPMENT

The tagged value is inaccessible in runtime images, and read-write at development time.

1

TVA_READONLY

The tagged value is read-only in runtime images, and read-write at development time.

5

TVA_DEV_READONLY

The tagged value is inaccessible in runtime images, and read-only at development time.

6