Applied batch from fpga branch which fixes the dcache fence bug. The should cause the dcache to flush all dirty cache lines to main memory. The bug caused the dirty reset to clear each way for a particular line.

wally-pipelined/src/cache/dcache.sv

@@ -142,6 +142,8 @@ module dcache
 
   logic LRUWriteEn;
   
+  logic [NUMWAYS-1:0] VDWriteEnableWay;
+
   // Read Path CPU (IEU) side
 
   mux4 #(INDEXLEN)
@@ -167,7 +169,7 @@ module dcache
 		      .WAdr,
 		      .PAdr(MemPAdrM),
 		      .WriteEnable(SRAMWayWriteEnable),
-		      .VDWriteEnable,		      
+		      .VDWriteEnable(VDWriteEnableWay),
 		      .WriteWordEnable(SRAMWordEnable),
 		      .TagWriteEnable(SRAMBlockWayWriteEnableM), 
 		      .WriteData(SRAMWriteData),
@@ -329,6 +331,8 @@ module dcache
 	      .d(NextFlushWay),
 	      .q(FlushWay));
 
+  assign VDWriteEnableWay = FlushWay & {NUMWAYS{VDWriteEnable}};  
+
   assign NextFlushWay = {FlushWay[NUMWAYS-2:0], FlushWay[NUMWAYS-1]};
 
   assign FlushAdrFlag = FlushAdr == FlushAdrThreshold[INDEXLEN-1:0] & FlushWay[NUMWAYS-1];