improved instruction decoding

it now makes use of don't-cares by performing logic minimization
2012-05-01 20:16:36 -07:00
parent 4cfa6cd9a8
commit 65ff397122
5 changed files with 506 additions and 308 deletions
--- a/rocket/src/main/scala/cpu.scala
+++ b/rocket/src/main/scala/cpu.scala
@ -130,11 +130,6 @@ class rocketProc(resetSignal: Bool = null) extends Component(resetSignal)
    dpath.io.fpu <> fpu.io.dpath
    ctrl.io.fpu <> fpu.io.ctrl
  }
-  else
-  {
-    ctrl.io.fpu.dec.valid := Bool(false)
-    ctrl.io.fpu.dec.wen := Bool(false)
-  }

  if (HAVE_VEC)
  {