From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Tue, 22 Nov 2016 17:39:59 +0100
Subject: IEEE-754 Float to int
In-Reply-To: <CAJX_Q+3V-8v+=cWOYP_oRqdj40s4fDRPB-sgQcAKn7yZJPYnZQ@mail.gmail.com>
References: <CAJX_Q+3V-8v+=cWOYP_oRqdj40s4fDRPB-sgQcAKn7yZJPYnZQ@mail.gmail.com>
Message-ID: <20161122163959.GB2919@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Tue, Nov 22, 2016 at 04:05:18PM +0000, Lucas Tanure wrote:
> Hi,?
> 
> At some point my hardware gives me a 32bit?IEEE-754 float, like this :
> 
> 
> regmap_read(device->regmap, ADDR0, &temp);
> 
> value = temp << 16;
> 
> regmap_read(device->regmap,?ADDR1, &temp);
> 
> value |= temp;
> 
> 
> So, value has a 32bit float now, and I would like to print just the integer
> part, like :
> Read 26.92387 --> Print 26.?
> Simple, no float operations.?
> 
> How I can do it ?

Just print the upper 16 bits shifted right by 16 bits.

But why would you want to print the value anyway?  Who would use it?

thanks,

greg k-h