In SX Microcontrollers, SX/B Compiler and SX-Key Tool, dkemppai wrote:

[quote="Peter Verkaik"]
If the bitposition is known,

mov w,#1<<bitpos
xor targetvar,w

This is assumed the bank is already set, or targetvar is global,
as ports are.

regards peter
[/quote]I didn't think of xoring...   ...I'll have to remember that. (Although, I do use XOR gates to buffer/invert data streams via logic control...) 
 

The problem is that the pin/bit is an assigned name variable, and may move depending on where I use this code. For example:

 

MyPin  equ   RA.1 in one example...

MyPin  equ   RE.3 the next time I use it. 

 

I good example would be a macro called "FlipBit", where I call the macro, and pass "MyPin" to the macro...

 

Is there any way to determine the bit position of a bit in a variable in the macro language?

 

Thanks!

Dan

 

P.S. I'm really starting to like macros...  :)

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