IEEE754_conversion

Introduction

A useful tool to convert float/half between hex and bin type.

Quick start

Just type in terminal

python fp16_cvt.py 0x3fff

you will get:

                                SIGN           EXP                          MAN
Value :                          0              0                       1.9990234375
Encoded as :                     0              15                          1023
Binary :                         0          0 1 1 1 1               1 1 1 1 1 1 1 1 1 1
Decimal representation:        1.9990234375
Binary Representation:         0b0011111111111111
Hexadecimal Representation:    0x3fff

or:

python fp32_cvt.py 0x7fffffff

you will get:

                                SIGN             EXP                                    MAN
Value :                          0               128                             1.9999998807907104
Encoded as :                     0               255                                  8388607
Binary :                         0         1 1 1 1 1 1 1 1         1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Decimal representation:        6.805646932770577e+38
Binary Representation:         0b01111111111111111111111111111111
Hexadecimal Representation:    0x7fffffff
**************************************************************************************************************
                                                Not a Number!
**************************************************************************************************************

Some useful links

https://www.h-schmidt.net/FloatConverter/IEEE754.html

http://weitz.de/ieee/