From 269259004943b80916ec9b6354f2fc00c811c88b Mon Sep 17 00:00:00 2001 From: Korey Sewell Date: Tue, 13 Nov 2007 16:58:16 -0500 Subject: Add in files from merge-bare-iron, get them compiling in FS and SE mode --HG-- extra : convert_revision : d4e19afda897bc3797868b40469ce2ec7ec7d251 --- src/arch/mips/isa/formats/branch.isa | 67 +++++++++++++++++++----------------- 1 file changed, 36 insertions(+), 31 deletions(-) (limited to 'src/arch/mips/isa/formats/branch.isa') diff --git a/src/arch/mips/isa/formats/branch.isa b/src/arch/mips/isa/formats/branch.isa index e786b3d9f..c5f638ccb 100644 --- a/src/arch/mips/isa/formats/branch.isa +++ b/src/arch/mips/isa/formats/branch.isa @@ -1,32 +1,38 @@ // -*- mode:c++ -*- -// Copyright (c) 2006 The Regents of The University of Michigan -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer; -// redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution; -// neither the name of the copyright holders nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Authors: Korey Sewell +// Copyright .AN) 2007 MIPS Technologies, Inc. All Rights Reserved + +// This software is part of the M5 simulator. + +// THIS IS A LEGAL AGREEMENT. BY DOWNLOADING, USING, COPYING, CREATING +// DERIVATIVE WORKS, AND/OR DISTRIBUTING THIS SOFTWARE YOU ARE AGREEING +// TO THESE TERMS AND CONDITIONS. + +// Permission is granted to use, copy, create derivative works and +// distribute this software and such derivative works for any purpose, +// so long as (1) the copyright notice above, this grant of permission, +// and the disclaimer below appear in all copies and derivative works +// made, (2) the copyright notice above is augmented as appropriate to +// reflect the addition of any new copyrightable work in a derivative +// work (e.g., Copyright .AN) Copyright Owner), and (3) +// the name of MIPS Technologies, Inc. ($B!H(BMIPS$B!I(B) is not used in any +// advertising or publicity pertaining to the use or distribution of +// this software without specific, written prior authorization. + +// THIS SOFTWARE IS PROVIDED $B!H(BAS IS.$B!I(B MIPS MAKES NO WARRANTIES AND +// DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, STATUTORY, IMPLIED OR +// OTHERWISE, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND +// NON-INFRINGEMENT OF THIRD PARTY RIGHTS, REGARDING THIS SOFTWARE. +// IN NO EVENT SHALL MIPS BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, +// INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES OF +// ANY KIND OR NATURE, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, +// THIS SOFTWARE AND/OR THE USE OF THIS SOFTWARE, WHETHER SUCH LIABILITY +// IS ASSERTED ON THE BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE OR +// STRICT LIABILITY), OR OTHERWISE, EVEN IF MIPS HAS BEEN WARNED OF THE +// POSSIBILITY OF ANY SUCH LOSS OR DAMAGE IN ADVANCE. + +//Authors: Korey L. Sewell //////////////////////////////////////////////////////////////////// // @@ -133,9 +139,8 @@ output decoder {{ Addr Jump::branchTarget(ThreadContext *tc) const { - Addr NPC = tc->readPC() + 4; - uint64_t Rb = tc->readIntReg(_srcRegIdx[0]); - return (Rb & ~3) | (NPC & 1); + Addr NPC = tc->readNextPC(); + return (NPC & 0xF0000000) | (disp); } const std::string & @@ -196,7 +201,7 @@ output decoder {{ ccprintf(ss, "%-10s ", mnemonic); - if (strcmp(mnemonic, "jal") == 0) { + if ( mnemonic == "jal" ) { Addr npc = pc + 4; ccprintf(ss,"0x%x",(npc & 0xF0000000) | disp); } else if (_numSrcRegs == 0) { -- cgit v1.2.3