At powerup, Network Boot is enabled, and providing the
drive and controller numbers encountered are valid, the
following message is displayed on the system console:
"Network Boot in progress... To abort hit
Restarting the System
You can initialize the system to a known state in three different ways: reset, abort, and break. Each has characteristics which make it more appropriate than the others in certain situations. The debugger has a special feature which can be used in the event your setup/operation parameters are corrupted or do not meet a sanity check. This feature: ❏ Is activated by pressing the RESET and ABORT switches at the same time, and releasing the RESET switch before the ABORT switch. ❏ Instructs 187Bug to use the default setup/operation parameters in ROM instead of your setup/operation parameters in NVRAM. Refer to the ENV command (Appendix A) for the ROM defaults.
During COLD reset:
A total system initialization takes place, as if the MVME187 had just been powered up. 2. All static variables (including disk device and controller parameters) are restored to their default states. 3. The breakpoint table and offset registers are cleared. 4. The target registers are invalidated. 5. Input and output character queues are cleared. 6. Onboard devices (timer, serial ports, etc.) are reset, and 7. The first two serial ports are reconfigured to their default state.
Pressing and releasing the MVME187 front panel RESET switch
initiates a system reset.
Reset must be used if the processor ever halts, or if the 187Bug
environment is ever lost (vector table is destroyed, stack corrupted,
etc.).
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