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???
06/16/10 08:25
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 		 #176708 - I think HAL is less risky?
Responding to: ???'s previous message
Murray R. Van Luyn said:
The most user friendly solution I came up with was simply to rename the CKCON SFR register with a pre-compiler define statement, and ask the user to uncomment this re-definition as required

You're still relying upon the bit(s) that you require being in that register, and with your required "sense".

You're also relying on it being a "simple" register; ie not relying on any SFR paging or suchlike...

etc, etc, ...

You avoid all these assumptions - and their inherent risks - by providing a HAL:

http://www.8052.com/forum/read/176611


List of 34 messages in thread
TopicAuthorDate
Conditional SFR Declaration?            01/01/70 00:00      
   ReDef            01/01/70 00:00      
   Preprocessor -vs- Compiler            01/01/70 00:00      
      Thanks...            01/01/70 00:00      
   A Loosely Related Query?            01/01/70 00:00      
      .h file            01/01/70 00:00      
         Yep, that works!            01/01/70 00:00      
            I would not            01/01/70 00:00      
               Good question...            01/01/70 00:00      
            A Rethink...            01/01/70 00:00      
               I don't know ... but            01/01/70 00:00      
                  Agree with Michael            01/01/70 00:00      
                  An overthink.            01/01/70 00:00      
               #including #includes            01/01/70 00:00      
                  totally?            01/01/70 00:00      
                     re: really?            01/01/70 00:00      
   Still no luck...            01/01/70 00:00      
      Like I said before....            01/01/70 00:00      
      HAL            01/01/70 00:00      
      just curious            01/01/70 00:00      
         Nicely workable solution found...            01/01/70 00:00      
            Post vandalised!            01/01/70 00:00      
               What do you mean ...            01/01/70 00:00      
                  I mean this...            01/01/70 00:00      
                     Vandalism Highly Doubted            01/01/70 00:00      
                        Thanks Michael.            01/01/70 00:00      
      Define a new sfr?            01/01/70 00:00      
         RE: This assumes that location 0x8E is always the register            01/01/70 00:00      
         Simplest Solution?            01/01/70 00:00      
            I think HAL is less risky?            01/01/70 00:00      
               HAL very interesting...            01/01/70 00:00      
                  RE: might not be so immediately well understood            01/01/70 00:00      
                     Ah, now I see...            01/01/70 00:00      
                        No, you don't need a HAL header file for each variant!            01/01/70 00:00      

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