Re: [linux-audio-dev] swh plugins and fixing undenormalize

[Simon Jenkins]

Tim Goetze wrote:
[Simon Jenkins]
 

Tim Goetze wrote:
   

8-bit exponent and no assumption about its value made, 8 binary
'shift', 7 'or' and 1 'and' statement if i'm not badly mistaken. and
if i'm not, a branch will probably hurt less.
     

Three shifts, three copys, three 'or's and an 'and':
  copy = value;
  value |= copy >> 4;
  copy = value;
  value |= copy >> 2;
  copy = value;
  value |= copy >> 1;
  value &= 0x01;
   

elegant indeed (though the exponent is not in the lowest 8 bits so it
needs another shift, no?)
Yes it does. And another copy of value because the one you start out with
gets destroyed. And the result, when its 1, is the integer 1 not the 
float 1.0
so you either need to (...etc etc).