Int_XFR - Interrupt safe 16bit transfer

    1 /*
    2 This is not mine, but I wrapped it up in a macro
    3 
    4 learned from here:
    5 http://www.ccsinfo.com/forum/viewtopic.php?t=46703
    6 
    7 
    8 
    9 
   10 */
   11 
   12 
   13 #define mINTSAFEXFR(y,x) do { x=y;} while (x!=y); 
   14 
   15 int16 keeper; 
   16 int16 thevar; 
   17 
   18 // txfr the var to keeper 
   19 mINTSAFEXFR(thevar,keeper); 
   20 .. 
   21 .. 
   22 // now write keeper to EEPROM 
   23 .. 
   24 ..
   25