using the bootstrap loader

CONFIGURING THE THIRD STAGE
Default versions of the assembly language source files and the SUBMIT file are placed in
the /BSL directory during installation. These files include the following:
BS3.A86
BS3MB2.A86
BG3.A86
BR3.A86
BMSC.A86
B264.A86
BS3.CSD
BG3.CSD
BR3.CSD
These assembly language source files contain macros that specify
the devices supported by the third stage (for device-specific third
stage only). They identify the CPU board and tell what to do if
errors occur during bootstrap loading. The BS3.A86 file applies to
the device-specific third stage for MUL TIBUS® I systems, the
BS3MB2.A86 file applies to the device-specific third stage for
MUL TIBUS II systems. The BG3.A86 file applies to the generic
third stage on either MUL TIBUS I or MUL TIBUS II systems. The
BR3.A86 applies to the remote third stage on MULTIBUS I
systems.
These assembly language source files apply only to the devicespecific
third stage. They contain configuration information about
the devices in your system. These are the same files that were used
during the configuration of the first stage. You do not need to
modify them for the device-specific third stage.
These SUBMIT files contain the commands you need to assemble
the source files, link the resulting modules (and any other you
supply) with the code for the third stage, and locate the resulting
object module. The BS3.CSD file applies to the device-specific third
stage. The BG3.CSD file applies to the generic third stage and the
BR3.CSD file applies to the remote third stage.
As shipped on the release diskettes, these files are set up to generate the default versions
of the Bootstrap Loader's device-specific, remote, and generic third stages.
Bootstrap Loader 4-3