Get Sign Bit from Integer

[kevin]

Simple example of how to get the SIGN BIT from an Integer in www.PlayBASIC.com

PlayBASIC Code: [Select]

 a =  12345
 b = -12345

   ; Using the getSign function is one way
   ; Note; This reads the sign bit of value)
   print "Using GetSign function"
   print GetSign(a)
   print GetSign(b)
   print ""

   ; GetSign() is basically the same as doing this
   print rol32(a,1) and 1 
   print rol32(b,1) and 1 
   print ""


   ; The SNG() function returns the direction of SNG()
   ; -1 ='s nagtive, 0 = zero and 1 it's positive
   print "Using SGN() function"
   print Sgn(a)
   print Sgn(b)
   print ""

   ; or you can test if it's less then 0
   print "Manual Tests"
   print a<0
   print b<0
   print ""


  

   print "done"

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