diff options
Diffstat (limited to 'src/arch/mips/isa/formats/fp.isa')
| -rw-r--r-- | src/arch/mips/isa/formats/fp.isa | 66 |
1 files changed, 38 insertions, 28 deletions
diff --git a/src/arch/mips/isa/formats/fp.isa b/src/arch/mips/isa/formats/fp.isa index 4e81ae2cf..2506e1864 100644 --- a/src/arch/mips/isa/formats/fp.isa +++ b/src/arch/mips/isa/formats/fp.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 N) 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 N) <Publication Year> 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 //////////////////////////////////////////////////////////////////// // @@ -91,7 +97,10 @@ output exec {{ { //@TODO: Implement correct CP0 checks to see if the CP1 // unit is enable or not - return NoFault; + if (!isCoprocessorEnabled(xc, 1)) + return new CoprocessorUnusableFault(1); + + return NoFault; } //If any operand is Nan return the appropriate QNaN @@ -183,6 +192,7 @@ def template FloatingPointExecute {{ %(fp_enable_check)s; + //When is the right time to reset cause bits? //start of every instruction or every cycle? #if FULL_SYSTEM |