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author | Stephen Hines <hines@cs.fsu.edu> | 2009-04-05 18:53:15 -0700 |
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committer | Stephen Hines <hines@cs.fsu.edu> | 2009-04-05 18:53:15 -0700 |
commit | 7a7c4c5fca83a8d47c7e71c9c080a882ebe204a9 (patch) | |
tree | 727269d84fb4ba0e7db6e1c7ffdeb3e114b71773 /src/arch/arm/regfile/misc_regfile.hh | |
parent | 65332ef3a9df48f7ff11b417b0ffc4a171824931 (diff) | |
download | gem5-7a7c4c5fca83a8d47c7e71c9c080a882ebe204a9.tar.xz |
arm: add ARM support to M5
Diffstat (limited to 'src/arch/arm/regfile/misc_regfile.hh')
-rw-r--r-- | src/arch/arm/regfile/misc_regfile.hh | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/arch/arm/regfile/misc_regfile.hh b/src/arch/arm/regfile/misc_regfile.hh new file mode 100644 index 000000000..f8301bed2 --- /dev/null +++ b/src/arch/arm/regfile/misc_regfile.hh @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2007-2008 The Florida State University + * 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: Stephen Hines + */ + +#ifndef __ARCH_ARM_REGFILE_MISC_REGFILE_HH__ +#define __ARCH_ARM_REGFILE_MISC_REGFILE_HH__ + +#include "arch/arm/types.hh" +#include "sim/faults.hh" + +class ThreadContext; + +namespace ArmISA +{ + static inline std::string getMiscRegName(RegIndex) + { + return ""; + } + + //Coprocessor 0 Register Names + enum MiscRegTags { + // Status Registers for the ARM + // + // CPSR Layout + // 31302928 ... 7 6 5 4 3 2 1 0 + // N Z C V ... I F T { MODE } + CPSR = 0, + SPSR_FIQ, + SPSR_IRQ, + SPSR_SVC, + SPSR_UND, + SPSR_ABT, + FPSR + }; + + class MiscRegFile { + + protected: + MiscReg miscRegFile[NumMiscRegs]; + + public: + void clear() + { + // Unknown startup state in misc register file currently + } + + void copyMiscRegs(ThreadContext *tc); + + MiscReg readRegNoEffect(int misc_reg) + { + return miscRegFile[misc_reg]; + } + + MiscReg readReg(int misc_reg, ThreadContext *tc) + { + return miscRegFile[misc_reg]; + } + + void setRegNoEffect(int misc_reg, const MiscReg &val) + { + miscRegFile[misc_reg] = val; + } + + void setReg(int misc_reg, const MiscReg &val, + ThreadContext *tc) + { + miscRegFile[misc_reg] = val; + } + + friend class RegFile; + }; +} // namespace ArmISA + +#endif |