diff options
Diffstat (limited to 'trunk/src/emu/cpu/drcbec.h')
-rw-r--r-- | trunk/src/emu/cpu/drcbec.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/drcbec.h b/trunk/src/emu/cpu/drcbec.h new file mode 100644 index 00000000000..ada16d7f055 --- /dev/null +++ b/trunk/src/emu/cpu/drcbec.h @@ -0,0 +1,88 @@ +/*************************************************************************** + + drcbec.h + + Interpreted C core back-end for the universal machine language. + +**************************************************************************** + + Copyright Aaron Giles + 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 'MAME' 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 AARON GILES ''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 AARON GILES 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. + +***************************************************************************/ + +#pragma once + +#ifndef __DRCBEC_H__ +#define __DRCBEC_H__ + +#include "drcuml.h" +#include "drcbeut.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +union drcbec_instruction; + +class drcbe_c : public drcbe_interface +{ +public: + // construction/destruction + drcbe_c(drcuml_state &drcuml, device_t &device, drc_cache &cache, UINT32 flags, int modes, int addrbits, int ignorebits); + virtual ~drcbe_c(); + + // required overrides + virtual void reset(); + virtual int execute(uml::code_handle &entry); + virtual void generate(drcuml_block &block, const uml::instruction *instlist, UINT32 numinst); + virtual bool hash_exists(UINT32 mode, UINT32 pc); + virtual void get_info(drcbe_info &info); + +private: + // helpers + void output_parameter(drcbec_instruction **dstptr, void **immedptr, int size, const uml::parameter ¶m); + void fixup_label(void *parameter, drccodeptr labelcodeptr); + int dmulu(UINT64 &dstlo, UINT64 &dsthi, UINT64 src1, UINT64 src2, int flags); + int dmuls(UINT64 &dstlo, UINT64 &dsthi, INT64 src1, INT64 src2, int flags); + + // internal state + drc_hash_table m_hash; // hash table state + drc_map_variables m_map; // code map + drc_label_list m_labels; // label list + drc_label_fixup_delegate m_fixup_delegate; // precomputed delegate + + static const UINT32 s_condition_map[32]; + static UINT64 s_immediate_zero; +}; + + +#endif /* __DRCBEC_H__ */ |