Motorola EXORdisk II User Manual page 456

APPENDIX
H. 14 PPLO/PPHI -- PROM
P~ogrammer
I
The MDOS version oT ths PROM
Prog~ammer !
has the same
runctional capabilities as described in the "PROM Programmer
Module Supplement". Both versions of the
PROM
programmer
(PROMP HI and PROMP La) are provided on the MDOS diskette in
the riles PPHI.LO and PPLO.LO~ respectively. These ~iles are
in the memory-image rormat to allow them to be loaded into
memQr~ directly from the diskette.
The operating procedure ~or each version of the PROM
Programmer I is described in the above-mentioned Supplement;
ho~everj
the process
of loading the PROM Programmer
r
~rom
the diskette is explained here.
Either version oT the PROM programmer I can be loaded
and executed from the MDOS diskette
by
entering the MDOS
command line
LOAD PPHliVG or LOAD PPLO;VG
depending on which version is to be used. Ir a user program
on the diskette is to be placed into a PROM, the following
procedure can be used iT the user
program loads above the
resident
operating system and MDOS command interpreter.
The
file can be loaded into memory using the MDOS command
LOAD
<name~;V
where <name~ is the file name oT the user's program. Since
MDOS does not destroy memor~ during initialization, the
system can be reinitialized and the
PROM
programmer loaded as
explained above.
Ir the user program overlays the resident MDOS, then it
must be
~relocated"
by changing the file's Retrieval
Information Block before loading it into memory. The
following sequence of commands should be used to alter a user
programs's starting load address:
DUMP <name>
R FFFF
78/mm,nn/
W
Q
The values "mm" and
"nn"
represent the hexadecimal numbers of
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