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

-------- FXSAVE non-64 (REX.W == 0) --------

BEFORE
  0   7f 03 00 08 fe 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 00 00 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 64   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 80   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 96   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
112   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
128   xx xx 68 21 a2 da 0f c9 00 40 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   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
224   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
272   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
288   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
336   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
352   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
400   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
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 00 00 
 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   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
336   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
352   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
400   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
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 08 fe 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 00 00 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 64   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 80   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 96   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
112   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
128   xx xx 68 21 a2 da 0f c9 00 40 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   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
224   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
272   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
288   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
336   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
352   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
400   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
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 

-------- FXSAVE 64 (REX.W == 1) --------


BEFORE
  0   7f 03 00 08 fe 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 00 00 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 64   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 80   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 96   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
112   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
128   xx xx 68 21 a2 da 0f c9 00 40 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   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
224   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
272   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
288   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
336   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
352   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
400   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
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 00 00 
 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   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
336   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
352   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
400   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
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 08 fe 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 00 00 
 32   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 48   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
 64   xx xx 68 21 a2 da 0f c9 00 40 00 00 00 00 00 00 
 80   xx xx cf fb 84 9a 20 9a fd 3f 00 00 00 00 00 00 
 96   xx xx cf d1 f7 17 72 b1 fe 3f 00 00 00 00 00 00 
112   xx xx 00 00 00 00 00 80 ff 3f 00 00 00 00 00 00 
128   xx xx 68 21 a2 da 0f c9 00 40 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   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
224   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
240   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
256   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
272   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
288   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
304   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
320   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
336   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
352   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
368   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
384   78 56 34 12 44 33 22 11 88 77 66 55 21 43 65 87 
400   01 ef cd ab dd cc bb aa 11 00 ff ee ba dc fe 10 
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