Binary compatibility with Harmonica.

2015-09-15 13:02:02 -06:00
parent ae11d80d36
commit 1eb574650f
4 changed files with 40 additions and 16 deletions
--- a/src/include/mem.h
+++ b/src/include/mem.h
@@ -106,10 +106,11 @@ namespace Harp {

  class MemoryUnit {
  public:
-    MemoryUnit(Size pageSize, Size addrBytes) : 
-      pageSize(pageSize), addrBytes(addrBytes), ad()
+    MemoryUnit(Size pageSize, Size addrBytes, bool disableVm = false) : 
+      pageSize(pageSize), addrBytes(addrBytes), ad(), disableVm(disableVm)
    {
-      tlb[0] = TLBEntry(0, 077);
+      if (!disableVm)
+        tlb[0] = TLBEntry(0, 077);
    }
    void attach(MemDevice &m, Addr base);

@@ -162,6 +163,8 @@ namespace Harp {
    TLBEntry tlbLookup(Addr vAddr, Word flagMask);

    Size pageSize, addrBytes;
+
+    bool disableVm;
  };
 };