Le 2013-03-23 00:13, Timothy Normand Miller a écrit :
http://www.cs.binghamton.edu/~millerti/ins-formats2.pdf
I would advise adding a ANDN instruction : AND with one inverted operand.
it speeds up boolean MUX sequences for example. circuit-wise, there's a little trick : the "N" is done with the same circuit as the SUB, because you have to complement every bit of one operand in each case. So you have a parallelism between ADD/SUB and AND/ANDN. I also think that the WR flag should be infered from the opcode. Otherwise, well, nice job :-) _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
