Michael R. Davis > Data-Convert-MicrochipTechnology-Float > Data::Convert::MicrochipTechnology::Float

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Data-Convert-MicrochipTechnology-Float-0.03.tar.gz

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Module Version: 0.03   Source  

NAME ^

Data::Convert::MicrochipTechnology::Float - Converts Microchip Technology 32-bit float to a number

SYNOPSIS ^

  use Data::Convert::MicrochipTechnology::Float;
  my $object = Data::Convert::MicrochipTechnology::Float->new();
  my $float=$obj->convert("\0\0\0\0");
  print "Float: $float\n";

DESCRIPTION ^

The format of the PIC 32-bit float is eeeeeeee smmmmmmm mmmmmmmm mmmmmmmm (4-bytes => 8-bit biased exponent, 1-bit sign, 23-bit significand)

  The number has value v: v = s * 2**e * m
  s = +1 (positive numbers) when the sign bit is 0
  s = -1 (negative numbers) when the sign bit is 1
  e = Exp - 127 (the exponent is biased with 127)
  m = 1.fraction in binary (the significand is the binary number 1 followed by the radix point followed by the binary bits of the fraction). Therefore, 1 = m < 2.

USAGE ^

CONSTRUCTOR ^

new

  my $object = Data::Convert::MicrochipTechnology::Float->new();

METHODS ^

convert

  my $float=$obj->convert("\0\0\0\0");
  my @list=$obj->convert("\0\0\0\0", "\0\0\0\0");
  my $listref=$obj->convert("\0\0\0\0", "\0\0\0\0");
  my $float=$obj->convert([0,0,0,0]);
  my @list=$obj->convert("\0\0\0\0", [0,0,0,0]);
  my $listref=$obj->convert("\0\0\0\0", [0,0,0,0]);

float_from_string

  my $float=$obj->float_from_string("\0\0\0\0");

float_from_array

  my $float=$obj->float_from_array(0, 0, 0, 0);

BUGS ^

The math introduces floating point rounding errors.

TODO ^

Add a bit vector capability to eliminate any rounding errors.

SUPPORT ^

AUTHOR ^

    Michael R. Davis
    CPAN ID: MRDVT
    DavisNetworks.com
    account=>perl,tld=>com,domain=>michaelrdavis
    http://www.davisnetworks.com/

COPYRIGHT ^

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.

SEE ALSO ^

Bit::Vector

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