From 93b010dbbcdc921bfccae673918eb9fbf354538a Mon Sep 17 00:00:00 2001
From: Siddarth-Suresh <65844402+Siddarth-Suresh@users.noreply.github.com>
Date: Tue, 11 Mar 2025 11:18:01 -0400
Subject: support for reading word, writing line to storage, dirty cache
 eviction, cache load

---
 inc/cache.h   |  3 ++-
 inc/dram.h    | 17 ++++++++++++++---
 inc/storage.h | 17 +++++++++++++++--
 3 files changed, 31 insertions(+), 6 deletions(-)

(limited to 'inc')

diff --git a/inc/cache.h b/inc/cache.h
index 5cdcea4..bc37f54 100644
--- a/inc/cache.h
+++ b/inc/cache.h
@@ -21,11 +21,12 @@ class Cache : public Storage
 	~Cache();
 
 	Response write(Accessor accessor, signed int data, int address) override;
+	Response write_line(Accessor accessor, std::array<signed int, LINE_SIZE> data_line, int address) override;
 	Response read(
 		Accessor accessor,
 		int address,
 		std::array<signed int, LINE_SIZE> &data) override;
-	Response read_word(Accessor accessor, int address, signed int &data);
+	Response read_word(Accessor accessor, int address, signed int &data) override;
 
 	/**
 	 * Getter for the meta attribute.
diff --git a/inc/dram.h b/inc/dram.h
index d68797f..427500c 100644
--- a/inc/dram.h
+++ b/inc/dram.h
@@ -22,18 +22,29 @@ class Dram : public Storage
 		Accessor accessor,
 		int address,
 		std::array<signed int, LINE_SIZE> &data) override;
+	Response write_line(Accessor accessor, std::array<signed int, LINE_SIZE> data_line, int address) override;
 
-	void write_line(std::array<signed int, LINE_SIZE> data_line, int address);
+	Response read(Accessor accessor, int address, std::array<signed int, LINE_SIZE>& data) override;
+	Response read_word(Accessor accessor, int address, signed int &data) override;
 
 	private:
 	/**
-	 * Helper for `write`.
+	 * Helper for `write` a word
 	 */
 	void do_write(signed int, int);
 	/**
-	 * Helper for `read`.
+	 * Helper for writing a line.
+	 */
+	void do_write_line(std::array<signed int, LINE_SIZE> data_line, int address);
+	/**
+	 * Helper for `read` a line
 	 */
 	void do_read(std::array<signed int, LINE_SIZE> &data_line, int address);
+	void do_read(std::array<signed int, LINE_SIZE>& data_line, int address);
+	/**
+	 * Helper for reading a word.
+	 */
+	void do_read_word(signed int &data, int address);
 };
 
 std::ostream &operator<<(std::ostream &os, const Dram &d);
diff --git a/inc/storage.h b/inc/storage.h
index a30e74d..fc93d7a 100644
--- a/inc/storage.h
+++ b/inc/storage.h
@@ -14,15 +14,22 @@ class Storage
 	virtual ~Storage() = default;
 
 	/**
-	 * Write `data` into `address`.
+	 * Write `data` word into `address`.
 	 * @param the source making the request.
 	 * @param the data (hexadecimal) to write.
 	 * @param the address to write to.
 	 * @return a status code reflecting the state of the request.
 	 */
 	virtual Response write(Accessor accessor, signed int data, int address) = 0;
+
+	/**
+	 * Write a data line to given address in this level of storage
+	 */
+	virtual Response write_line(Accessor accessor, std::array<signed int, LINE_SIZE> data_line, int address) = 0;
+
+	
 	/**
-	 * Get the data at `address`.
+	 * Get the data line at `address`.
 	 * @param the source making the request.
 	 * @param the address being accessed.
 	 * @return a status code reflecting the state of the request, and the
@@ -32,6 +39,12 @@ class Storage
 		Accessor accessor,
 		int address,
 		std::array<signed int, LINE_SIZE> &data) = 0;
+
+	/**
+	 * Read a word from given address in this level of storage
+	 */
+	virtual Response read_word(Accessor accessor, int address, signed int &data) = 0;
+	
 	/**
 	 * Sidedoor view of `lines` of memory starting at `base`.
 	 * @param The base line to start getting memory from.
-- 
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