From d67a7797d2e171533e6e0a662032e2d5c354902b Mon Sep 17 00:00:00 2001
From: Lukas Zenick <lukas@cs.utexas.edu>
Date: Sun, 14 Apr 2024 15:59:24 -0500
Subject: [PATCH] arch-x86: Movfp account for dataSize=4

Change-Id: I97e7a6f2738a57cad9907ddfe5c8030a26c147e8
---
 src/arch/x86/isa/microops/fpop.isa | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/arch/x86/isa/microops/fpop.isa b/src/arch/x86/isa/microops/fpop.isa
index b0b925f679..4d85cf3e18 100644
--- a/src/arch/x86/isa/microops/fpop.isa
+++ b/src/arch/x86/isa/microops/fpop.isa
@@ -257,7 +257,14 @@ let {{
             super().__init__(reg1, reg2, reg3, **kwargs)
 
     class Movfp(Fp2Op):
-        code = 'FpDestReg_uqw = FpSrcReg1_uqw;'
+        code = '''
+        if(dataSize == 4) {
+            FpDestReg_uqw = (0xFFFFFFFF00000000 & FpDestReg_uqw) |
+            (0x00000000FFFFFFFF & FpSrcReg1_uqw);
+        } else {
+            FpDestReg_uqw = FpSrcReg1_uqw;
+        }
+        '''
         else_code = 'FpDestReg_uqw = FpDestReg_uqw;'
         cond_check = "checkCondition(ccFlagBits | cfofBits | dfBit | \
                                      ecfBit | ezfBit, src1)"