Note: 3rd Party Spec



                           .:::::::::' .:::'
                          .:::'  :::' .:::'
                         .:::' .. :' .:::'   NORTHERN LIGHTS
                        .:::' .::.  .:::'       TECHNICAL
                       .:::' .:::::::::'



    .---------------------.
----! DCPU-16 INFORMATION !-----------------------------------------------------
    '---------------------'

Name: NLT 32 Word Switched Boot Rom (NLT-BR32)
ID: 0xae0103f5, version: 0x0003
Manufacturer: 0xe13dd468 (NLT)


    .-------------.
----! DESCRIPTION !-------------------------------------------------------------
    '-------------'

The NLT Switched Boot ROM allows manual configuration of the first 32 words of
memory through the tedious process of configuring the 512 switch array on the
face of the device. During boot the DCPU will read from the switches in place of
normal RAM. The ROM will also store its own hardware bus address in the highest
memory location (0xFFFF,) allowing a lazy ROM developer to communicate with the
device without searching for it. Any attempt to write to a word that is mapped
by the ROM will fail silently.

    .--------------------.
----! INTERRUPT BEHAVIOR !------------------------------------------------------
    '--------------------'

Upon receiving any hardware interrupt the boot ROM will release itself from the
DCPU's bus, allowing normal use of the memory address range that it had
previously occupied. While it may be sent more interrupts, it will not respond
nor map itself into memory again until the DCPU is rebooted.

 COPYRIGHT 1986 NORTHER LIGHTS TECHNICAL ALL RIGHTS RESERVED DO NOT DISTRIBUTE