void main(void)
{
void *payloadAddress = (void *)0x23F00000;
memcpy(payloadAddress, (void*)0x24F00000, *(u32 *)0x24FFFF04);
flushCaches();
((void (*)())payloadAddress)();
}
/******************************************************************************************************
* Makes call to state machine
******************************************************************************************************/
void stateMachine( struct reference* ref ) {
// Find which L1 cache to access
struct cache L1_cache = cacheType( ref );
// Define initial state
struct state state;
state.type = ref->type;
state.iteration = 0;
// Check instruction count
if( setFlush == TRUE ) {
state.next = FLUSH;
} else {
state.next = QUERY_L1;
}
// Define initial L1 reference
decomposeAddress( ref, L1 );
state.L1_Index = ref->index[0];
state.L1_Tag = ref->tag[0];
#ifdef PRINT
printf( "Tag: %13llx \n", ref->tag[0] );
printf( "Index: %6llx \n", ref->index[0] );
#endif
// Start state machine
while( TRUE ) {
switch( state.next ) {
case IDLE:
// Increment L1 reference
#ifdef PRINT
printf( "Increment Reference \n" );
#endif
incrementL1( &state, ref );
break;
case QUERY_L1:
// Query L1 cache for tag
#ifdef PRINT
printf( "Query L1 \n" );
#endif
queryL1( &state, &L1_cache );
break;
case QUERY_L2:
// Query L2 cache for tag
#ifdef PRINT
printf( "Query L2 \n" );
#endif
queryL2( &state );
break;
case ADD_L1:
// Add tag to L1 cache
#ifdef PRINT
printf( "Add L1 \n" );
#endif
addL1( &state, &L1_cache );
break;
case ADD_L2:
// Add tag to L2 cache
#ifdef PRINT
printf( "Add L2 \n" );
#endif
addL2( &state );
break;
case HANDLE_WRITE:
// Set dirty bit in L1 cache
#ifdef PRINT
printf( "Handle write case \n" );
#endif
handleWrite( &state, &L1_cache );
break;
case FLUSH:
// Flush and invalidate all caches
#ifdef PRINT
printf( "Flush \n" );
#endif
flushCaches( &state );
break;
case TERMINATE:
// Break out of state machine
#ifdef PRINT
printf( "**********************************************************************************************\n" );
#endif
terminate( ref );
return;
}
}
}
void CacheManager::enableCaches()
{
disabled=false;
flushCaches();
}
void CacheManager::disableCaches()
{
disabled=true;
flushCaches();
}