Fix relaxedBusCmdValid pendingCmd overflow

2018-06-06 15:20:37 +02:00 · 2018-06-06 15:20:37 +02:00 · dc968020c4
parent 7768f065e4
commit dc968020c4
1 changed files with 3 additions and 2 deletions
--- a/src/main/scala/vexriscv/plugin/IBusSimplePlugin.scala
+++ b/src/main/scala/vexriscv/plugin/IBusSimplePlugin.scala
@ -160,9 +160,10 @@ class IBusSimplePlugin(resetVector : BigInt,
        val pipFork = fork(1)
        output << pipFork

-        iBus.cmd.valid := busFork.valid && pendingCmd =/= pendingMax
+        val okBus = pendingCmd =/= pendingMax
+        iBus.cmd.valid := busFork.valid && okBus
        iBus.cmd.pc := busFork.payload(31 downto 2) @@ "00"
-        busFork.ready := iBus.cmd.ready
+        busFork.ready := iBus.cmd.ready && okBus
      } else new Area {
        def input = fetchPc.output
        def output = iBusRsp.input