Rev 1.0g
        Recompile with Micro-C 3.0

Rev 1.0f
        Expand serial input buffer to 250 bytes
        Add R command to set output delay

Rev 1.0e
        Slow T command output to 5 ms/char, adjust strobe width
        Fix 100 us delay loop
        Fix diagnostic report selection

Rev 1.0d
        Get the network address bit right

Rev 1.0c
        Fix bit output to avoid latching zero input bits as outputs

Rev 1.0b
        Revise address input control to replace only low order bit
                of last address character

Rev 1.0a
        Add net mode 3 with command acknowledgement
        Force RESET to wait for serial output completion
        Set P3 bits high before reset to allow inputs

Rev 0.2a
        Collect common code, add checksums

Rev 0.1c
        Relocate RAM to A000

Rev 0.1b
        Recompile to get all code in step

Rev 0.1a
        Original version