+#define ASI_BLK_AIUP_L_4V 0x1e /* (4V) Prim, user, block, l-endian*/
+#define ASI_BLK_AIUS_L_4V 0x1f /* (4V) Sec, user, block, l-endian */
+#define ASI_SCRATCHPAD 0x20 /* (4V) Scratch Pad Registers */
+#define ASI_MMU 0x21 /* (4V) MMU Context Registers */
+#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23 /* (NG) init-store, twin load,
+ * secondary, user
+ */