Datasheet

Floating-point Support
ARM DUI 0067D Copyright © 1999-2001 ARM Limited. All rights reserved. 5-33
Table 5-13 Sample double-precision floating-point values
Double value S Exp Frac Mathematical value Notes
0x3FF00000 00000000 0 0x3FF 000...000 1.0 -
0xBFF00000 00000000 1 0x3FF 000...000 -1.0 -
0x3FF00000 00000001 0 0x3FF 000...001 1.000 000 000 000 000 222
a
0x3FE80000 00000000 0 0x3FE 100...000 0.75 -
0x00100000 00000000 0 0x001 000...000 2.23*10
-308
b
0x00000000 00000001 0 0x000 000...001 4.94*10
-324
c
0x7FEFFFFF FFFFFFFF 0 0x7FE 111...111 1.80*10
308
d
0x7FF00000 00000000 0 0x7FF 000...000 Plus infinity -
0xFFF00000 00000000 1 0x7FF 000...000 Minus infinity -
0x00000000 00000000 0 0x000 000...000 0.0
e
0x7FF00000 00000001 0 0x7FF 000...001 Signalling NaN
f
0x7FF80000 00000000 0 0x7FF 100...000 Quiet NaN
f
a. to f. For footnotes, see Table 5-12 on page 5-32.