[dcbrown]

Fixed a couple bugs.

Test cases run:
1.234567879
1.233999963
1234.000000000
1234567936.000000000
0.123399970
0.001233990
0.000012335
0.156250000
98.765434262
9.876543043
0.987654324

void printff( long fbinary )
{
char sign;
unsigned char exp;
int bias;
long data;
long left;

    sign = ' ';
    if ((fbinary & 0x80000000) != 0) sign = '-';

    exp = (fbinary & 0x7F800000) >> 23; 

    /* compute whole number */
    bias = (int)exp - (int)127;
    if (bias >= 0)
    {
        if (bias <= 30)
        {
	    data = 0x1;
	    while (bias > 0)
	    {
	        data <<= 1;
	        if ((fbinary & 0x00400000) != 0)
		    data |= 0x1;
	        fbinary <<= 1;
	        --bias;
	    }
            printf( "%c%d.", sign, data );
        }
        else
        {
	    // can't do yet
	    printf( "**.****\n");
	    return;
        }

	/* compute fraction */
        data = 0;
        left = 500000000;
	fbinary &= 0x007FFFFF;
        while (fbinary != 0)
        {
	    if ((fbinary & 0x00400000) != 0)
	        data += left;
	    fbinary <<= 1;
	    fbinary &= 0x007FFFFF;
	    left = left >> 1;
        }
        printf( "%09d\n", data );
    }
    else
    {
        /* Number < 1.0 */
        printf( "%c0.", sign );
	bias = -bias;
	if (bias < 24 )
	{
            data = 0;
            left = 500000000;
	    fbinary &= 0x00FFFFFF;
	    fbinary |= 0x00800000;
	    fbinary >>= (bias-1);
            while (fbinary != 0)
            {
	        if ((fbinary & 0x00800000) != 0)
	            data += left;
	        fbinary <<= 1;
	        fbinary &= 0x00FFFFFF;
		left = left >> 1;
            }
            printf( "%09d\n", data );
	}
	else
	{
	    printf( "%09d\n", 0 );
	}
    }
    return;
}

PS I'm not trying to encourage the use of floating point, but for debugging and in small doses it has its uses.