Final register contents

Register 1:

Address of the command verification exit parameter list with modified values

Registers 2–14:

Restored to entry contents

Register 15:

Return code

X'00' (0): Processing successfully completed
X'01'–X'4F' (1–79): Exit processing did not work; the command verification exit remains active.
X'50'–X'7F' (80–127): Reserved
Greater than X'7F' (127): Invocation failed: command denied and command verification exit deleted and deactivated
X'F0'–X'FF' (240–255): Reserved