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fix dramsim2 memory model to wrap around

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- there was a problem when the I$ speculatively fetched an instruction from an illegal address
This commit is contained in:
Yunsup Lee 2013-01-23 01:40:15 -08:00
parent 217898c7d0
commit f37b9d9a7d
1 changed files with 2 additions and 2 deletions
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4
csrc/mm_dramsim2.cc
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@ -79,8 +79,8 @@ void mm_dramsim2_t::tick
if (req_cmd_fire) if (req_cmd_fire)
{ {
auto byte_addr = req_cmd_addr*REFILL_COUNT*MM_WORD_SIZE; // since the I$ can speculatively ask for address that are out of bounds
assert(byte_addr < size); auto byte_addr = (req_cmd_addr*REFILL_COUNT*MM_WORD_SIZE) % size;
if (req_cmd_store) if (req_cmd_store)
{ {