Changes between Version 7 and Version 8 of Component/Iss2Api

Timestamp:

Dec 20, 2009, 11:20:50 AM (14 years ago)

Author:

Nicolas Pouillon

Comment:

--

Component/Iss2Api

@@ -218 +218 @@
 protocol for this architecture.
 
+=== void dump() ===
+
+Dumps internal state of the ISS on std::cout. This is used by instrumentation tools
+which want to display the state of an ISS at a certain event.
+
 == Implementation notes ==
 
@@ -225 +230 @@
 
 As executeNCycles ensures responses MUST NOT change for at least ncycle:
- * an ISS frozen because of I or D miss SHOULD do nothing externally visible for at least ncycle. Iss SHOULD internally simulate a stall of ncycle and return ncycle.
- * an ISS running because all its instruction and data accesses are satisfied SHOULD run as long as no other request needs to be answered by cache.
-
+ * an ISS frozen for a Data miss MAY continue to fetch Instructions
+ * an ISS frozen for an Instruction miss MAY continue to do Data accesses
+ * an ISS frozen for a Data miss MUST not change Data access until satisfied
+ * an ISS frozen for a Instruction miss MAY change Instruction request
+   (if receiving an IRQ and jumping to ISR while stalled, for instance)
+ * an ISS running because all its instruction and data accesses are satisfied
+   SHOULD run as long as no other request needs to be answered by cache.