1 files changed, 14 insertions, 0 deletions

diff --git a/memory/cache.h b/memory/cache.h
index c7fb602..4c3b3d9 100644
--- a/memory/cache.h
+++ b/memory/cache.h
@@ -59,6 +59,20 @@ namespace memory {
             d = r.data;
         }
 
+        void opportunistic_store(std::uint64_t address, unsigned int d) {
+            auto line_address = address >> LINE_BYTES_LOG2;
+            auto set_address = line_address & LINE_SET_OFFSET_MASK;
+            auto &stags = tags[set_address];
+            auto &sdata = data[set_address];
+            for (unsigned int i = 0; i < WAYS; ++i) {
+                auto &stag = stags[i];
+                if (stag.serial && stag.line_address == line_address) {
+                    sdata[i][address & LINE_BYTE_OFFSET_MASK] = d;
+                    return;
+                }
+            }
+        }
+
         std::optional<tag> probe(std::uint64_t address) {
             auto line_address = address >> LINE_BYTES_LOG2;
             auto set_address = line_address & LINE_SET_OFFSET_MASK;