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Travis Build	Hackage

crackNum

Display/show/analyze IEEE754 Half-precision, Single-precision, and Double-precision values; along with various integer types: Signed/Unsigned, 8, 16, 32, 64 bits.

$ crackNum --help
crackNum v1.1, (c) Levent Erkok. Released with a BSD3 license.
Usage: crackNum precision bit/hex-pattern
          --hp        16 bit half     precision
          --sp        32 bit single   precision
          --dp        64 bit double   precision
          --sb         8 bit signed   byte
          --sw        16 bit signed   word
          --sd        32 bit signed   double
          --sq        64 bit signed   quad
          --ub         8 bit unsigned byte
          --uw        16 bit unsigned word
          --ud        32 bit unsigned double
          --uq        64 bit unsigned quad
          --toIEEE=n  Convert from decimal to IEEE SP/DP formats.
  -l n    --lanes=n   number of lanes
  -h, -?  --help      print help, with examples
  -v      --version   print version info

Examples:

   crackNum --hp fc00
   crackNum --sp fc00 abcd
   crackNum --dp fc00 abc1 2345 6789
   crackNum --sp 01111111110000000000000000000000
   crackNum -l2 --hp 01111111110000000000000000000000
   crackNum --sb 7f
   crackNum --sp --toIEEE=-2.3e6
   crackNum --dp --toIEEE=max
   crackNum --dp --toIEEE=ulp

Notes:
  - You can use hexadecimal or binary as input.
  - You can use _,- or space as a digit to improve readability.
  - You can give input for multiple lanes, we will guess the #of lanes for you.
    Or, you can specify number of lanes with the -l option.
  - For "toIEEE" option:
        - You can enter a number in decimal notation (like 2.3)
        - OR, enter one of the following:
               * infinity, -infinity: Positive/Negative infinities
               * snan, qnan: Not-A-Number; screaming/quiet
               * 0, -0: Both kinds of zeros
               * max : The maximum finite positive value
               * -max: The minimum finite negative value
               * min : The minimum normal positive value
               * -min: The maximum normal negative value
               * epsilon: The smallest possible value x s.t. 1+x /= 1.
               * ulp: The minimum subnormal value