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A ROM file can only be copied or purged; it can not be edited.
If
you
wish
to
edit
a ROM file, you must first copy it into an initialized PMS bank and
then copy the individual file you wish to edit back into the HP-75 ,
edit
it
and return it to the PMS bank, and recopy it into the HP-75 as a ROM file.
A ROM file can not be copied into a partially filled PMS bank.
The bank
can
be initialized by executing the BUILD command.
The file named may be of any type compatible with the
HP-75.
COpy command is subject to the following restrictions:
However,
the
o
Language extension (LEX) file: Only one LEX file may be stored in a PMS
bank (Refer to the BUILD command.)
o
BASIC file: A file pointer is allocated and added to the file.
There-
fore,
the
file size listed by the CAT command may be too small to use
in determining
the
required
bank
memory.
(Refer
to
the
ROMSIZE
command.)
Any single language extension (LEX) file compatible with the
HP-75
standard
may be optionally specified for inclusion in a bank at initialization.
Errors when copying into the PMS:
{device not present}
{device not allowed}
{bank not initialized}
{duplicate name}
{bank not empty}
{file not found}
{bank full}
{invalid file}
{invalid checksum}
{invalid filespec}
{wrong file type}
(duplicate romid)
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