17 May
2011
17 May
'11
2:46 p.m.
On 5/17/2011 8:01 AM, Adrian Stoness wrote:
hi is there something like a abs loader for the
pdp11??? reading my manual
see somthing called rim loader but i think i am missing it inless its one of
these?
http://img859.imageshack.us/img859/8412/tapes4.jpg
where its curently at
http://www.youtube.com/watch?v=gDwBZPX_Qjo
The RIM loader is a very short sequence that is typically toggled in
from the console; it's job
is to load RIM
(read-in-mode) format paper tapes. It can handle loading
only into one field
and it does no checksumming of the loaded tape to validate it was read
correctly.
The BIN loader is a longer set of code that is typically loaded in from
a tape in RIM format.
Most of the system software, diagnostics, etc are all BIN format paper
tapes. BIN loader
can handle multiple fields and does checksumming of loaded blocks for
validation.
The DEC small computer handbook for the PDP-8 series:
http://computer-refuge.org/bitsavers/pdf/dec/pdp8/handbooks/Small_Computer_…
has listings of both of these loaders on pp. A-31 thru A-34.
Don