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- Documentation for OSBDUMB (aka DUMB)
-
- OSBDUMB is a program only for the Osborne-1, as it
- uses the bank switching of the Osborne-1 to get at
- the serial port, and it uses a routine that is
- specific to the Osborne BIOS.
-
- DUMB is a program that allows the Osborne-1 to work
- as a dumb terminal to many things. It can be a
- terminal to access the SOURCE, or it can be a
- terminal to a bulletin board.
-
- Its main advantage over the established utilities
- such as MODEM, MODEM7 etc is that is allows you to
- take a hardcopy of the dialog directly on a
- printer, rather than store it in memory.
-
- RESTRICTIONS
-
- To take advantage of the hardcopy procedure, you
- will need a printer connected to the parallel port,
- (or the IEEE port) of your Osborne, and have the
- IOBYTE configured to indicate that (use SETUP or
- STAT)
-
- USAGE
-
- To use the program, just type OSBDUMB, there are no
- parameters. You will be prompted as to whether you
- require Half or Full-Duplex mode, and for the Baud
- rate (300 or 1200 buad).
-
- ASSEMBLY
-
- At the moment, DUMB needs the Microsoft M80
- assembler, but work is underway to develop a
- version that uses ASM. The ASM version will,
- regretably, produce a larger COM file than the M80
- version (18K vs 2K), but "thems the breaks"! I
- think that there are enough comments in the program
- to allow the prospective modifier to see what is
- going on, but bear in mind that it uses Z80
- mnemonics (at the moment), and some specific Z80
- instructions.
-
-
-