m += 1
if get_mantissa(m) == ((1<<24)-1):
e += 1
+
+ # this is 2nd-stage normalisation. can move it to a separate fn.
+
+ #if the num is NaN, then adjust (normalised NaN rather than de-normed NaN)
+ if (e == 128 & m !=0):
+ # these are in IEEE754 format, this function returns s,e,m not z
+ s = 1 # sign (so, s=1)
+ e = 255 # exponent (minus 128, so e = 127
+ m = 1<<22 # high bit of mantissa, so m = 1<<22 i think
+ m = 1
+ m = 1<<22 # rest of mantissa is zero, so m = 1<<22 is good.
+ m = 0
+
+ #if the num is Inf, then adjust (to normalised +/-INF)
+ if (e == 128):
+ # these are in IEEE754 format, this function returns s,e,m not z
+ s = 1 # s is already s, so do nothing to s.
+ m = 255 # have to subtract 128, so e = 127 (again)
+ m = 0 # mantissa... so m=0
+
return s, m, e