From e60d6c0d200a089d6b02c6a723897fa0b4000f73 Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Thu, 16 Aug 2018 10:50:28 +0100
Subject: [PATCH] fp/info: Incorrect point_position in FPValue

---
 src/common/fp/info.h |  2 +-
 tests/CMakeLists.txt |  1 +
 tests/fp/FPValue.cpp | 15 +++++++++++++++
 3 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 tests/fp/FPValue.cpp

diff --git a/src/common/fp/info.h b/src/common/fp/info.h
index fc28e924..a56baa2d 100644
--- a/src/common/fp/info.h
+++ b/src/common/fp/info.h
@@ -68,7 +68,7 @@ constexpr FPT FPValue() {
         return FPInfo<FPT>::Zero(sign);
     }
 
-    constexpr int point_position = static_cast<int>(FPInfo<FPT>::mantissa_width);
+    constexpr int point_position = static_cast<int>(FPInfo<FPT>::explicit_mantissa_width);
     constexpr int highest_bit = Common::HighestSetBit(value);
     constexpr int offset = point_position - highest_bit;
     constexpr int normalized_exponent = exponent - offset + point_position;
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 6e645862..92d15ffd 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -29,6 +29,7 @@ add_executable(dynarmic_tests
     A64/testenv.h
     cpu_info.cpp
     fp/FPToFixed.cpp
+    fp/FPValue.cpp
     fp/mantissa_util_tests.cpp
     fp/unpacked_tests.cpp
     main.cpp
diff --git a/tests/fp/FPValue.cpp b/tests/fp/FPValue.cpp
new file mode 100644
index 00000000..e5c4ee52
--- /dev/null
+++ b/tests/fp/FPValue.cpp
@@ -0,0 +1,15 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2018 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include "common/fp/info.h"
+
+using namespace Dynarmic::FP;
+
+static_assert(FPValue<u32, false, 0, 1>() == 0x3f800000);
+static_assert(FPValue<u32, false, -1, 3>() == 0x3fc00000);
+static_assert(FPValue<u32, false, 0, 12739812>() == 0x4b4264e4);
+static_assert(FPValue<u32, false, -8, 100>() == 0x3ec80000);
+static_assert(FPValue<u32, true, 0, 1>() == 0xbf800000);