Read The Program From Disk; Calling System Utilities From User Programs - Motorola MVME187 Installation Manual

Alternately, the program may have been previously created using
the 187Bug MM command as outlined above and stored to the host
using the Dump (DU) command.
A communication link must exist between the host system and the
MVME187 port 1. (Hardware configuration details are provided in
Connecting Peripherals on page 3-20.) The file is downloaded from
the host to MVME187 memory by the Load (LO) command.

Read the Program from Disk

Another way to enter a program is by reading the program from
disk, using one of the disk commands (BO, BH, IOP). Once the
object code has been loaded into memory, you can set breakpoints
if desired and run the code or trace through it.

Calling System Utilities from User Programs

A convenient way of doing character input/output and many other
useful operations has been provided so that you do not have to
write these routines into the target code. You can access various
187Bug routines via one of the MC88100 TRAP instructions, using
vector #496. Refer to the Debugging Package for Motorola 88K RISC
CPUs User's Manual for details on the various TRAP #496 utilities
available and how to invoke them from within a user program.
Calling System Utilities from User Programs
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