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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