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From: "Norberto Alfredo Bensa" <nbensa AT hotmail DOT com>
To: "DJGPP" <djgpp AT delorie DOT com>
References: <Pine DOT SUN DOT 3 DOT 91 DOT 1001225105224 DOT 18547B-100000 AT is>
Subject: Re: getdfree on FAT32?
Date: Mon, 25 Dec 2000 18:17:00 -0300
Organization: nBens@ Computers
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Reply-To: djgpp AT delorie DOT com


From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
>
> On Sun, 24 Dec 2000, Norberto Alfredo Bensa wrote:
>
> > I was suspecting of that "rescaling" free clusters stuff from the
beggining,
> > but I was afraid to ask (I guess I must trust more on my instincts)
>
> What rescaling?

    /* We trust previous int21 call more if free hasn't maxed out. */
    if( free < blocks )
    {
        /* Previous bsize is a multiple of this bsize, so the multiplication
        and division here is really a rescaling of the previous free
        value. */
        free *= bsize;
        bsize = _farpeekw (_dos_ds, __tb + 0x2 + 0x2) *
            ( _farpeekb (_dos_ds, __tb + 0x2 + 0x4) + 1 );
        free /= bsize;
    }
    else
    {
        free = _farpeekw (_dos_ds, __tb + 0x2 + 0x1f) +
            65536 * _farpeekw (_dos_ds, __tb + 0x2 + 0x21);
        bsize = _farpeekw (_dos_ds, __tb + 0x2 + 0x2) *
            ( _farpeekb (_dos_ds, __tb + 0x2 + 0x4) + 1 );
    }


>
> > PS: Please forgive me for attaching files but I don't know where to send
> > them...
>
> This is explained in the FAQ (section 22.3).
>

Thanks, I'm sending a diff to DJ right now, just let me change the layout of
the sources back to its original form (tabs, spaces, indent, etc.)

Regards,
Norberto