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???
04/21/06 03:20
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#114656 - Yes Masking
Responding to: ???'s previous message

If You can read back the Port (you can not if it is loaded)
Read Port.
AND the Port with 0xF0 (keep high nibble)
OR with New Data
Write to port.

If you can not read back the port...
You will need to keep a copy of the port. the rest is the same.
Read Port copy from RAM.
AND the Port with 0xF0 (keep high nibble)
OR with New Data
Write to port.
write copy back to RAM


List of 14 messages in thread
TopicAuthorDate
sending data            01/01/70 00:00      
   Masking            01/01/70 00:00      
   Yes Masking            01/01/70 00:00      
      masking            01/01/70 00:00      
         Use the c flag to handle bit's            01/01/70 00:00      
            charles            01/01/70 00:00      
   The procesor does not stop at an 'end' s            01/01/70 00:00      
   bcd            01/01/70 00:00      
      Some routines in the code library            01/01/70 00:00      
      BCD            01/01/70 00:00      
         bcd            01/01/70 00:00      
            Talk to me via skype if you wish            01/01/70 00:00      
   Sending            01/01/70 00:00      
      ORL wont work            01/01/70 00:00      

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