From 0b1b537697185613a2da8d5ed374f8f1e1ea9ffe Mon Sep 17 00:00:00 2001 From: bd Date: Sun, 9 Mar 2025 12:05:12 -0400 Subject: Add bitset field to cache.h for keeping track of write/validity --- inc/cache.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'inc') diff --git a/inc/cache.h b/inc/cache.h index f1fb942..0c86e97 100644 --- a/inc/cache.h +++ b/inc/cache.h @@ -1,6 +1,9 @@ #ifndef CACHE_H #define CACHE_H -#include +#include "definitions.h" +#include "storage.h" +#include +#include class Cache : public Storage { @@ -19,6 +22,15 @@ class Cache : public Storage Response write(Accessor accessor, signed int data, int address) override; Response read(Accessor accessor, int address) override; + + private: + /** + * An array of paired bits. + * If the least significant bit of an element is set, the corresponding + * element in `data` is invalid. If the most significant bit of an element + * is set, the corresponding element in `data` is dirty. + */ + std::array, L1_CACHE_SIZE> stat; }; #endif /* CACHE_H_INCLUDED */ -- cgit v1.2.3