Decimal IEEE-754 Sign Expo Mantissa
-------------------------------------------------
+largest 7f7fffff 0 fe ffffff (about
3.402822e+38)
+32769.00 47000100 0 8e 800100
+32768.00 47000000 0 8e 800000
+32767.50 46ffff00 0 8d ffff00
+32767.00 46fffe00 0 8d fffe00
+1.000000 3f800000 0 7f 800000
-1.000000 bf800000 1 7f 800000
+smallest 00800000 0 01 800000 (about
1.17549e-38)
+0.000000 00000000 0 00 800000 (zero by
definition)