offset to index methods

asyncvlsi · Dec 23, 2020 · a75aa48 · a75aa48
1 parent 8528498
commit a75aa48
Showing 1 changed file with 26 additions and 0 deletions.
diff --git a/passes/state/statepass.h b/passes/state/statepass.h
@@ -125,6 +125,32 @@ class ActStatePass : public ActPass {
 
   chp_offsets getGlobals() { return _globals; }
 
+  int isGlobalOffset (int off) {
+    if (off >= 0) { return 0; }
+    off = -off;
+    if (off & 1) { return 0; }
+    return 1;
+  }
+
+  int isPortOffset (int off) {
+    if (off >= 0) { return 0; }
+    off = -off;
+    if (off & 1) { return 1; }
+    return 0;
+  }
+
+  int portIdx (int off) {
+    Assert (isPortOffset (off), "What?");
+    off = -off;
+    return (off + 1)/2 - 1;
+  }
+
+  int globalIdx (int off) {
+    Assert (isGlobalOffset (off), "What?");
+    off = -off;
+    return off/2 - 1;
+  }
+
 private:
   void *local_op (Process *p, int mode = 0);
   void free_local (void *);