Changeset 63 for trunk/IPs/systemC/processor/Morpheo/Common/include/BitManipulation.h

Timestamp:

Dec 4, 2007, 2:33:31 PM (17 years ago)

Author:

rosiere

Message:

par rapport au commit precedent : commit des include commun et un petit (vraiment petit) peu de doc

File:

• trunk/IPs/systemC/processor/Morpheo/Common/include/BitManipulation.h (modified) (9 diffs)

trunk/IPs/systemC/processor/Morpheo/Common/include/BitManipulation.h

@@ -15 +15 @@
 namespace morpheo              {
 
-  // gen_mask .....................................
-
+  // gen_mask ..................................................................
+  
   template <typename T>
   T gen_mask       (uint32_t size) 
@@ -29 +29 @@
   };
 
-  // shift_left_logic, shift_right_logic ..........
+  // mask, mask_not ............................................................
+  template <typename T>
+  T mask           (uint32_t data, uint32_t index_max, uint32_t index_min)  
+  {
+    return     (gen_mask<T>(index_max-index_min+1)<<index_min) & data;
+  }
+
+  template <typename T>
+  T mask_not       (uint32_t data, uint32_t index_max, uint32_t index_min)  
+  {
+    return (~(gen_mask<T>(index_max-index_min+1)<<index_min)) & data;
+  }
+
+  // shift_left_logic, shift_right_logic .......................................
   template <typename T>
   T shift_logic_left (uint32_t size, uint32_t data, uint32_t value)  
@@ -46 +59 @@
   }
 
-  // shift_logic ..................................
+  // shift_logic ...............................................................
   template <typename T>
   T shift_logic      (uint32_t size, uint32_t data, uint32_t value, bool is_direction_left)
@@ -56 +69 @@
   }
 
-  // shift_left_arithmetic, shift_right_arithmetic 
+  // shift_left_arithmetic, shift_right_arithmetic .............................
   template <typename T>
   T shift_arithmetic_left (uint32_t size, uint32_t data, uint32_t value)  
@@ -92 +105 @@
   }
 
-  // shift_arithmetic .............................
+  // shift_arithmetic ..........................................................
   template <typename T>
   T shift_arithmetic      (uint32_t size, uint32_t data, uint32_t value, bool is_direction_left)
@@ -102 +115 @@
   }
 
-  // shift ........................................
+  // shift .....................................................................
   template <typename T>
   T shift            (uint32_t size, uint32_t data, uint32_t value, bool is_direction_left, bool is_shift_arithmetic)
@@ -112 +125 @@
   }
 
-  // rotate_left, rotate_right ....................
+  // rotate_left, rotate_right .................................................
 
   template <typename T>
@@ -132 +145 @@
   }
 
-  // rotate .......................................
+  // rotate ....................................................................
   template <typename T>
   T rotate         (uint32_t size, uint32_t data, uint32_t value, bool is_direction_left)  
@@ -142 +155 @@
   }
 
-  // range ........................................
+  // range .....................................................................
   template <typename T>
-  T range          (uint32_t size, uint32_t data, uint32_t index_max, uint32_t index_min)  
+  T range          (uint32_t data, uint32_t index_max, uint32_t index_min)  
   {
-    return gen_mask<T>(index_max-index_min+1) & shift_logic_left<T> (size, data, index_min);
+    return gen_mask<T>(index_max-index_min+1) & (data << index_min);
   }
 
   template <typename T>
-  T range          (uint32_t size, uint32_t data, uint32_t nb_bits)  
+  T range          (uint32_t data, uint32_t nb_bits)  
   {
     return gen_mask<T>(nb_bits) & data;
   }
-
-
 }; // end namespace morpheo