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/*
This file is part of the Boson game
Copyright (C) 2004-2005 Andreas Beckermann (b_mann@gmx.de)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
// note the copyright above: this is LGPL!
#include "math/bomath.h"
#include <stdio.h>
void floatToBin(float _f)
{
printf("%f: ", _f);
int f = *((int*)&_f);
for (int i = 31; i >= 0; i--) {
if (f & (0x1 << i)) {
printf("1");
} else {
printf("0");
}
}
int sign = (f & (0x1 << 31)) ? 1 : 0;
int e = 0;
float m = 0;
for (int i = 30; i >= 23; i--) {
e <<= 1;
if (f & (0x1 << i)) {
e += 1;
}
}
for (int i = 0; i < 23; i++) {
m /= 2.0f;
if (f & (0x1 << i)) {
m += (0.5f);
}
}
// ieee stuff. mantissa always has a leading 1, exponent has a bias of 127
m += 1.0f;
e -= 127;
printf(" - sign=%d, e=%d, m=%f", sign, e, m);
printf("\n");
}
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