arch-x86: Movfp account for dataSize=4

Change-Id: I97e7a6f2738a57cad9907ddfe5c8030a26c147e8
2024-04-14 15:59:24 -05:00
parent bdaeb082c3
commit d67a7797d2
1 changed files with 8 additions and 1 deletions
--- 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)"