Alias for a bit variable

Avra

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Subject:

Alias for a bit variable

· Posted: 29.05.2014 - 13:02 · #1

Right now I have to make an alias to a port bit variable like this:

Code

var
SEL_A[@PortG, 3]: bit;
ComMuxA[@PortG, 3]: bit;

which I do not like because I have to repeat "@PortG, 3" two times. I would prefer something like this instead:

Code

var
SEL_A[@PortG, 3]: bit;
ComMuxA[@SEL_A]: bit;

but compiler does not allow it.

Is there some workaround that I am not aware of?

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Subject:

Re: Alias for a bit variable

· Posted: 29.05.2014 - 15:45 · #2

Hello Avra,
a bit type is very, very different from any other types.
It consists of a 16bit address and an 8bit bit-address and is more like a constant than a variable.
So it is impossible to pass such a type to a function for example.
Also your construction will not work, sorry.

But this is working:

Code

var
  BitX[@PortA, 5]: bit;

Alias
  BitY      = BitX;
.....
  if BitX then
  endif;
  if BitY then
  endif;

rolf

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