From e51128e46fea2a0330e66e05df2c1ee51ed9e7bc Mon Sep 17 00:00:00 2001
From: aldelaro5 <aldelaro5@gmail.com>
Date: Tue, 9 Apr 2019 01:09:38 -0400
Subject: [PATCH] Processors/PowerPC: Use FLOAT_NEG on fneg and fneg.
 instructions

It was causing weird decompilation output.
---
 .../Processors/PowerPC/data/languages/ppc_instructions.sinc | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Ghidra/Processors/PowerPC/data/languages/ppc_instructions.sinc b/Ghidra/Processors/PowerPC/data/languages/ppc_instructions.sinc
index 359a6026cf..8930e796da 100644
--- a/Ghidra/Processors/PowerPC/data/languages/ppc_instructions.sinc
+++ b/Ghidra/Processors/PowerPC/data/languages/ppc_instructions.sinc
@@ -1577,15 +1577,13 @@
 #fneg fr0,fr0	0xfc 00 00 50
 :fneg fD,fB	is $(NOTVLE) & OP=63 & fD & fB & BITS_16_20=0 & XOP_1_10=40 & Rc=0
 {
-	tmp:8 = (~fB) & 0x8000000000000000;
-	fD = (fB & 0x7fffffffffffffff) | tmp;
+	fD = f- fB;
 }
 
 #fneg. fr0,fr0	0xfc 00 00 51
 :fneg. fD,fB	is $(NOTVLE) & OP=63 & fD & fB & BITS_16_20=0 & XOP_1_10=40 & Rc=1
 {
-	tmp:8 = (~fB) & 0x8000000000000000;
-	fD = (fB & 0x7fffffffffffffff) | tmp;
+	fD = f- fB;
 	cr1flags();
 }