From 23dbca399184718596375da56b6006f254c2cef7 Mon Sep 17 00:00:00 2001
From: Dygore <dylan.gore@okstate.edu>
Date: Fri, 14 Apr 2023 00:33:53 -0500
Subject: [PATCH 1/2] Added tests for full coverage of the FPU result sign
 module

---
 tests/coverage/fpu.S | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/tests/coverage/fpu.S b/tests/coverage/fpu.S
index 9c8f3d34..d377d47d 100644
--- a/tests/coverage/fpu.S
+++ b/tests/coverage/fpu.S
@@ -32,10 +32,19 @@ main:
     csrs mstatus, t0
 
     #Pull denormalized FP number from memory and pass it to fclass.S for coverage
-    la t0, TestData
+    la t0, TestData1
     flw ft0, 0(t0)
     fclass.s t1, ft0
 
+    #Result Sign Test Coverage
+    la t0, TestData2
+    flw ft0, 0(t0)
+    flw ft1, 4(t0)
+    fadd.s ft2, ft0, ft1 #Adds coverage for inf as arg for FADD
+
+    flw ft2, 4(t0)
+    fmsub.s ft3, ft0, ft1, ft2 #Adds coverage for fmaAs or Z Sign Bit
+
     # Test legal instructions not covered elsewhere
     flq ft0, 0(a0)
     flh ft0, 8(a0)
@@ -105,5 +114,8 @@ main:
 
 .section .data
 .align 3
-TestData:
-.int 0x00100000 #Denormalized FP number
\ No newline at end of file
+TestData1:
+.int 0x00100000 #Denormalized FP number
+TestData2:
+.word 0x60000001 #Random FP Number (Pos)
+.word 0x7f800000 #INF
\ No newline at end of file

From 92a0827d80a74f28d9c98885558726aff2ef8676 Mon Sep 17 00:00:00 2001
From: Dygore <dylan.gore@okstate.edu>
Date: Fri, 14 Apr 2023 14:40:55 -0500
Subject: [PATCH 2/2] Added multiple tests to increase FPU coverage

---
 tests/coverage/fpu.S | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/tests/coverage/fpu.S b/tests/coverage/fpu.S
index d377d47d..b2a52be0 100644
--- a/tests/coverage/fpu.S
+++ b/tests/coverage/fpu.S
@@ -45,6 +45,30 @@ main:
     flw ft2, 4(t0)
     fmsub.s ft3, ft0, ft1, ft2 #Adds coverage for fmaAs or Z Sign Bit
 
+    #Adds Coverage for Flag fmaAs, fmaPs, YSNaN, ZSNaN
+    fmadd.s ft3, ft0, ft1, ft2
+
+    flw ft0, 8(t0)
+    fmadd.s ft3, ft0, ft1, ft2
+
+    flw ft1, 12(t0)
+    fmadd.s ft3, ft0, ft1, ft2
+
+    flw ft2, 12(t0)
+    flw ft1, 4(t0)
+    fmadd.s ft3, ft0, ft1, ft2
+
+    #Add Coverage for round lsbRes
+    flw ft0, 16(t0)
+    flw ft1, 4(t0)
+    fmadd.s ft3, ft0, ft1, ft2
+
+    #Fix BadNaNBox test on unpackinput Z
+    la t0, TestData2
+    flw ft3, 0(t0)
+    flw ft4, 0(t0)
+    fadd.s ft5, ft3, ft4
+
     # Test legal instructions not covered elsewhere
     flq ft0, 0(a0)
     flh ft0, 8(a0)
@@ -117,5 +141,8 @@ main:
 TestData1:
 .int 0x00100000 #Denormalized FP number
 TestData2:
-.word 0x60000001 #Random FP Number (Pos)
-.word 0x7f800000 #INF
\ No newline at end of file
+.int 0x3f800000 #FP 1.0
+.word 0x7f800000 #INF
+.int 0xbf800000 #FP -1.0
+.int 0x7fa00000 #SNaN
+.int 0x3fffffff #OverFlow Test
\ No newline at end of file