From 56339ecd6f185eafbefe90d641400d22d786dcfd Mon Sep 17 00:00:00 2001
From: "Eric P. Nusbaum" <eric@enusbaum.com>
Date: Mon, 26 Aug 2024 21:38:19 -0400
Subject: [PATCH] Add Control Word to Unit Test

---
 MBBSEmu.Tests/CPU/FRNDINT_Tests.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/MBBSEmu.Tests/CPU/FRNDINT_Tests.cs b/MBBSEmu.Tests/CPU/FRNDINT_Tests.cs
index 4c1f65c7..879e0cb7 100644
--- a/MBBSEmu.Tests/CPU/FRNDINT_Tests.cs
+++ b/MBBSEmu.Tests/CPU/FRNDINT_Tests.cs
@@ -10,13 +10,16 @@ public class FRNDINT_Tests : CpuTestBase
         [InlineData(0.1d, 0d)]
         [InlineData(1.9d, 2d)]
         [InlineData(-1.9d, -2d)]
-        [InlineData(0.5d, 1d)]
+        [InlineData(0.5d, 0d)]
         [InlineData(0.49999999d, 0d)]
         public void FRNDINT_Test(double ST0Value, double expectedValue)
         {
             Reset();
             mbbsEmuCpuCore.FpuStack[mbbsEmuCpuRegisters.Fpu.GetStackTop()] = ST0Value;
 
+            //Set FPU Control Word to set rounding to even
+            mbbsEmuCpuRegisters.Fpu.ControlWord = 0x0000000C;
+
             var instructions = new Assembler(16);
             instructions.frndint();
             CreateCodeSegment(instructions);