Common Variable

Big Mike

I am looking for a way to access variables between the upper program and the variables set out in the objects in that program.· I would like to have a number of variables defined in the top level of the program and then have an object access that data and to have the object write data to some of the variables defined in the upper program. Is there a way of accessing that or will I have to copy the information to and from·that object's variable area.· Any help you can provide is appreciated
·
Thanks: Mike
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·

Kye

Use pointers.

Just pass the variable addresses to the lower level objects.

The use word[noparse][[/noparse]address] or byte[noparse][[/noparse]address] or long[noparse][[/noparse]address] to set or read the variable.

Like...
 
 
VAR
 
  byte stuff1
  word stuff2
  long stuff3
 
PUB writeStuff
 
  byte[noparse][[/noparse]@stuff1] := 128
 
  word[noparse][[/noparse]@stuff2] := 32768
 
  long[noparse][[/noparse]@stuff3] := 1231231231
 
 
PUB readStuff1 
 
  return byte[noparse][[/noparse]@stuff1]
 
PUB readStuff2 
 
  return word[noparse][[/noparse]@stuff2]
 
PUB readStuff3 
 
  return long[noparse][[/noparse]@stuff3]

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Nyamekye,

Post Edited (Kye) : 7/6/2009 8:24:08 PM GMT

Big Mike

My isue was i needed to know the locaion of a certain variable to use as a reference for an index but what you said made me think of doing it a different way and it worked so thanks.