X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=3c_disasm%2Finstr%2Fsub.cpp;h=ce8ca6488f181c5dd476beb1a3562668b13e58ff;hb=1968f329b10681b760faec9369aa893cd2af8d44;hp=d17473512e1b5249e084479f61690b483920d04e;hpb=f7afa120e8de972b9afb88125fb7dc49fcfccbbe;p=calu.git

diff --git a/3c_disasm/instr/sub.cpp b/3c_disasm/instr/sub.cpp
index d174735..ce8ca64 100644
--- a/3c_disasm/instr/sub.cpp
+++ b/3c_disasm/instr/sub.cpp
@@ -1,3 +1,24 @@
+/*   `Deep Thought', a softcore CPU implemented on a FPGA
+
+    Copyright (C) 2010 Markus Hofstaetter <markus.manrow@gmx.at>
+    Copyright (C) 2010 Martin Perner <e0725782@student.tuwien.ac.at>
+    Copyright (C) 2010 Stefan Rebernig <stefan.rebernig@gmail.com>
+    Copyright (C) 2010 Manfred Schwarz <e0725898@student.tuwien.ac.at>
+    Copyright (C) 2010 Bernhard Urban <lewurm@gmail.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
 #include "../Iinstr.hpp"
 
 class Csub : public Iinstr {
@@ -64,7 +85,7 @@ void Csub::execInstr()
 	CDatd val = ra - rb;
 	this->m_cpu->setRegister(m_rd, val);
 	if(!this->m_d) {
-		this->m_cpu->updateFlags(val, ra, rb);
+		this->m_cpu->updateFlags(val, ra, (~rb)+1);
 	}
 }