Processor Technology Sol-PC, Manual

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VI. LOADING & EXECUTING CUTER (cont.) (Applicable to CUTER only)
H. Via sense switches, select the default I/O pseudo ports as follows:
X X X X I I O O
Bit 7 6 5 4 3 2 1 0
Where: X X X X doesn't matter
I I which pseudo port from 0 - 3 (00-11 binary)
is to be the default input pseudo port.
O O which pseudo port from 0 - 3 (00-11 binary)
is to be the default Output pseudo port.
NOTE: Whenever CUTER does a full system reset (begins execution
at its beginning memory address), the sense switches will
be accessed to determine the default I/O pseudo ports.
I. If either Input or Output default is to be pseudo port 3 (user
written routine), verify the following:
(i) The appropriate user written routine is in memory.
(ii) The address of the appropriate I/O routine is entered into
the CUTER system RAM area. The system RAM area begins
exactly 2K (800 hex) after the beginning of CUTER. The
first word of this area is used to contain the address for
the user Input routine. The second word will contain the
address of the user Output routine. Addresses are entered
in lo-hi order.
J. Execute location ZERO. The CUTER loader will have properly prepared
this location to either transfer control to the CUTER just loaded or
to indicate an error while loading CUTER. If there was no error,
CUTER will now be in control.
Remember to turn off the cassette machine and remove the CUTER tape.
K. IF your computer halts again, this means one of the following errors
has occurred. Display memory location ONE to determine the error
code. The error code will be one of the following:
Error Code in Hex Meaning
00 The specified load address was not within the
range 0200-F400, or the tape file loaded was
not CUTER.
01 A tape read error was detected.
02 There was no tape read error, but the CRC
(error checking) character was invalid.
40 The file was loaded, but it was not CUTER.
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