On 8/13/07, Petter Urkedal <[EMAIL PROTECTED]> wrote: > > I forget. Do we care about signed multiplies? > > I did when I wrote the current version. I'm not the expert of what > we will need, but the sign logic is cheap anyway, right?
Sorta. The multiplier blocks themselves can do signed (18-bit) multiplies. So we can multiply two signed 16-bit numbers to get a signed 32-bit number. But how do you multiply two 32-bit signed to get a 64-bit signed? I know it can be done. I just can't work it out in my head right now. :/ -- Timothy Normand Miller http://www.cse.ohio-state.edu/~millerti Open Graphics Project _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
