From df28d2f83f00a9f07607507d9fc898c8d2b1f6e5 Mon Sep 17 00:00:00 2001
From: drmortalwombat <90205530+drmortalwombat@users.noreply.github.com>
Date: Mon, 24 Jul 2023 22:19:35 +0200
Subject: [PATCH] Value forwarding abs,x and abs,y

---
 oscar64/NativeCodeGenerator.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/oscar64/NativeCodeGenerator.cpp b/oscar64/NativeCodeGenerator.cpp
index 2f78137..74b5984 100644
--- a/oscar64/NativeCodeGenerator.cpp
+++ b/oscar64/NativeCodeGenerator.cpp
@@ -3928,6 +3928,12 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
 					mMode = ASMIM_IMPLIED;
 					changed = true;
 				}
+				else if (data.mRegs[CPU_REG_A].mMode == NRDM_ABSOLUTE_X && data.mRegs[CPU_REG_A].mLinkerObject == mLinkerObject && data.mRegs[CPU_REG_A].mValue == mAddress)
+				{
+					mType = ASMIT_TAY;
+					mMode = ASMIM_IMPLIED;
+					changed = true;
+				}
 				else
 				{
 					data.mRegs[CPU_REG_Y].mMode = NRDM_ABSOLUTE_X;
@@ -3985,6 +3991,12 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
 					mMode = ASMIM_IMPLIED;
 					changed = true;
 				}
+				else if (data.mRegs[CPU_REG_A].mMode == NRDM_ABSOLUTE_Y && data.mRegs[CPU_REG_A].mLinkerObject == mLinkerObject && data.mRegs[CPU_REG_A].mValue == mAddress)
+				{
+					mType = ASMIT_TAX;
+					mMode = ASMIM_IMPLIED;
+					changed = true;
+				}
 				else
 				{
 					data.mRegs[CPU_REG_X].mMode = NRDM_ABSOLUTE_Y;