Re-run with any arg to suppress least-significant
   16 bits of FP numbers

BEFORE
  0   7f 03 00 10 fc 00 00 00 00 00 00 00 00 00 00 00 
 16   00 00 00 00 00 00 00 00 80 1f 00 00 ff ff ff ff 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 64   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 80   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
 96   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
112   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
128   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
144   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
160   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
176   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
192   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
208   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
224   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
272   79 b9 f9 b9 99 ff 99 bb 99 77 99 bb 9b 9f 9b 97 
288   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
304   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
320   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
336   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
352   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
368   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
384   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
400   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
416   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
432   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
448   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
464   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
480   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
496   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 

ZEROED
  0   7f 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 16   00 00 00 00 00 00 00 00 80 1f 00 00 ff ff ff ff 
 32   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 48   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 64   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 80   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 96   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
112   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
128   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
144   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
160   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
176   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
192   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
208   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
224   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
272   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
288   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
304   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
320   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
336   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
352   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
368   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
384   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
400   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
416   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
432   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
448   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
464   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
480   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
496   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 

RESTORED
  0   7f 03 00 10 fc 00 00 00 00 00 00 00 00 00 00 00 
 16   00 00 00 00 00 00 00 00 80 1f 00 00 ff ff ff ff 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 64   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 80   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
 96   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
112   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
128   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
144   xx xx 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
160   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
176   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
192   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
208   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
224   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
272   79 b9 f9 b9 99 ff 99 bb 99 77 99 bb 9b 9f 9b 97 
288   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
304   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
320   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
336   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
352   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
368   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
384   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
400   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
416   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
432   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
448   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
464   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
480   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 
496   55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55