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Diffstat (limited to 'src/arch/generic/decode_cache.hh')
-rw-r--r-- | src/arch/generic/decode_cache.hh | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/arch/generic/decode_cache.hh b/src/arch/generic/decode_cache.hh new file mode 100644 index 000000000..c6bce7226 --- /dev/null +++ b/src/arch/generic/decode_cache.hh @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2011 Google + * 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 + */ + +#ifndef __ARCH_GENERIC_DECODE_CACHE_HH__ +#define __ARCH_GENERIC_DECODE_CACHE_HH__ + +#include "arch/types.hh" +#include "config/the_isa.hh" +#include "cpu/decode_cache.hh" +#include "cpu/static_inst_fwd.hh" + +namespace TheISA +{ + class Decoder; +} + +namespace GenericISA +{ + +class BasicDecodeCache +{ + private: + DecodeCache::InstMap instMap; + DecodeCache::AddrMap<StaticInstPtr> decodePages; + + public: + /// Decode a machine instruction. + /// @param mach_inst The binary instruction to decode. + /// @retval A pointer to the corresponding StaticInst object. + StaticInstPtr decode(TheISA::Decoder * const decoder, + TheISA::ExtMachInst mach_inst, Addr addr); +}; + +} // namespace GenericISA + +#endif // __ARCH_GENERIC_DECODE_CACHE_HH__ |