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author | Gabe Black <gblack@eecs.umich.edu> | 2006-08-11 19:43:10 -0400 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2006-08-11 19:43:10 -0400 |
commit | 800e6ecc07d01c49808cc4f9597d94cc8cfd9fae (patch) | |
tree | bdc05bad76c4a757533cccb5002dadc15eca0456 /src/arch/sparc/floatregfile.hh | |
parent | f612f09669310359d6a194645b00e32a3921283b (diff) | |
download | gem5-800e6ecc07d01c49808cc4f9597d94cc8cfd9fae.tar.xz |
Pushed most of constants.hh back into isa_traits.hh and regfile.hh and created a seperate file for the syscallreturn class.
--HG--
extra : convert_revision : 9507ea1c09fda959f00aec9ec8ffb887ec8dd0f9
Diffstat (limited to 'src/arch/sparc/floatregfile.hh')
-rw-r--r-- | src/arch/sparc/floatregfile.hh | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/arch/sparc/floatregfile.hh b/src/arch/sparc/floatregfile.hh new file mode 100644 index 000000000..9d760c9ff --- /dev/null +++ b/src/arch/sparc/floatregfile.hh @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2003-2005 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: Gabe Black + * Ali Saidi + */ + +#ifndef __ARCH_SPARC_FLOATREGFILE_HH__ +#define __ARCH_SPARC_FLOATREGFILE_HH__ + +#include "arch/sparc/faults.hh" +#include "arch/sparc/isa_traits.hh" +#include "arch/sparc/types.hh" + +#include <string> + +namespace SparcISA +{ + std::string getFloatRegName(RegIndex); + + typedef float float32_t; + typedef double float64_t; + //FIXME long double refers to a 10 byte float, rather than a + //16 byte float as required. This data type may have to be emulated. + typedef double float128_t; + + class FloatRegFile + { + public: + static const int SingleWidth = 32; + static const int DoubleWidth = 64; + static const int QuadWidth = 128; + + protected: + + //Since the floating point registers overlap each other, + //A generic storage space is used. The float to be returned is + //pulled from the appropriate section of this region. + char regSpace[(SingleWidth / 8) * NumFloatRegs]; + + public: + + void clear(); + + FloatReg readReg(int floatReg, int width); + + FloatRegBits readRegBits(int floatReg, int width); + + Fault setReg(int floatReg, const FloatReg &val, int width); + + Fault setRegBits(int floatReg, const FloatRegBits &val, int width); + + void serialize(std::ostream &os); + + void unserialize(Checkpoint *cp, const std::string §ion); + }; +} + +#endif |