Emergency Keyboard Commands

Bypass POST. This command does not depend on security-mode. (Note: some systems bypass POST as a default; in such cases, use Stop-D to start POST.)

Abort. 

Enter diagnostic mode (set diag-switch? to true).

Enter Forth on TTYA instead of probing. Use fexit to continue with the initialization sequence. Useful if hardware is broken.

Reset NVRAM contents to default values.