From 94a0435da91501d2320d6081c552cb5df0c4433d Mon Sep 17 00:00:00 2001
From: bd <bdunahu@operationnull.com>
Date: Thu, 17 Apr 2025 01:17:48 -0400
Subject: Keep track of checked out in DTO to simplify wb cond logic (bug)

---
 inc/instrDTO.h | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

(limited to 'inc/instrDTO.h')

diff --git a/inc/instrDTO.h b/inc/instrDTO.h
index b6dec06..755ab9f 100644
--- a/inc/instrDTO.h
+++ b/inc/instrDTO.h
@@ -15,18 +15,15 @@ class InstrDTO
 	InstrDTO();
 	~InstrDTO() = default;
 
-	/**
-	 * @return hist entry for Accessor
-	 */
-	int get_time_of(Accessor);
-	/**
-	 * @return id_cycle
-	 */
 	int get_id_cycle();
 	/**
 	 * @return instr_bits
 	 */
 	signed int get_instr_bits();
+	/**
+	 * @return checked_out
+	 */
+	signed int get_checked_out();
 	/**
 	 * @return s1
 	 */
@@ -52,14 +49,14 @@ class InstrDTO
 	 */
 	unsigned int get_pc();
 
-	/**
-	 * @param set hist key
-	 */
-	void set_time_of(Accessor, int);
 	/**
 	 * @param instr_bits
 	 */
 	void set_instr_bits(signed int);
+	/**
+	 * @param checked_out
+	 */
+	void set_checked_out(signed int);
 	/**
 	 * @param s1
 	 */
@@ -87,14 +84,16 @@ class InstrDTO
 	void set_pc(unsigned int pc);
 
   private:
-	/**
-	 * The clock cycle each stage finished an operation.
-	 */
-	std::unordered_map<Accessor, int> hist;
 	/**
 	 * The raw bits encoding the instruction.
 	 */
 	signed int instr_bits;
+	/**
+	 * The register, if any, this instruction has checked out. A checked out
+	 * register cannot be checked out by another register. This prevents RAW
+	 * conflicts.
+	 */
+	signed int checked_out;
 	/**
 	 * Slots in this instruction, for storing temporary registers, immediates,
 	 * or other.
-- 
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