1 files changed, 55 insertions, 0 deletions

diff --git a/src/core/arm/mmu/rb.h b/src/core/arm/mmu/rb.h
new file mode 100644
index 000000000..7bf0ebb26
--- /dev/null
+++ b/src/core/arm/mmu/rb.h
@@ -0,0 +1,55 @@
+#ifndef _MMU_RB_H
+#define _MMU_RB_H
+
+enum rb_type_t
+{
+    RB_INVALID = 0,        //invalid
+    RB_1,            //1     word
+    RB_4,            //4 word
+    RB_8,            //8 word
+};
+
+/*bytes of each rb_type*/
+extern ARMword rb_masks[];
+
+#define RB_WORD_NUM 8
+typedef struct rb_entry_s
+{
+    ARMword data[RB_WORD_NUM];    //array to store data
+    ARMword va;        //first word va
+    int type;        //rb type
+    fault_t fault;        //fault set by rb alloc
+} rb_entry_t;
+
+typedef struct rb_s
+{
+    int num;
+    rb_entry_t *entrys;
+} rb_s;
+
+/*mmu_rb_init
+ * @rb_t    :rb_t to init
+ * @num        :number of entry
+ * */
+int mmu_rb_init (rb_s * rb_t, int num);
+
+/*mmu_rb_exit*/
+void mmu_rb_exit (rb_s * rb_t);
+
+
+/*mmu_rb_search
+ * @rb_t    :rb_t to serach
+ * @va        :va address to math
+ *
+ * $    NULL :not match
+ *         NO-NULL:
+ * */
+rb_entry_t *mmu_rb_search (rb_s * rb_t, ARMword va);
+
+
+void mmu_rb_invalidate_entry (rb_s * rb_t, int i);
+void mmu_rb_invalidate_all (rb_s * rb_t);
+void mmu_rb_load (ARMul_State * state, rb_s * rb_t, int i_rb,
+          int type, ARMword va);
+
+#endif /*_MMU_RB_H_*/