After resetting the subsystem (power-on reset), the bootstrap sets up the Forth environment, copies the firmware from PROM to RAM and disables the PROM for further access.
After this, the main word Do-App is called from the Forth system immediately after setup. You can find the main word Do-App in the file app.fth (see part II). Do-App calls Init-App, which itself calls other initilisation words like Init-ADS. Then the application enters the main loop. In the main loop the following actions are performed: