diff options
Diffstat (limited to 'trunk/src/emu/cpu/mips/mips3fe.h')
-rw-r--r-- | trunk/src/emu/cpu/mips/mips3fe.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/mips/mips3fe.h b/trunk/src/emu/cpu/mips/mips3fe.h new file mode 100644 index 00000000000..aefcc676795 --- /dev/null +++ b/trunk/src/emu/cpu/mips/mips3fe.h @@ -0,0 +1,95 @@ +/*************************************************************************** + + mips3fe.h + + Front-end for MIPS3 recompiler + +**************************************************************************** + + 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 __MIPS3FE_H__ +#define __MIPS3FE_H__ + +#include "mips3com.h" +#include "cpu/drcfe.h" + + +//************************************************************************** +// MACROS +//************************************************************************** + +// register flags 0 +#define REGFLAG_R(n) (((n) == 0) ? 0 : (1 << (n))) + +// register flags 1 +#define REGFLAG_CPR1(n) (1 << (n)) + +// register flags 2 +#define REGFLAG_LO (1 << 0) +#define REGFLAG_HI (1 << 1) +#define REGFLAG_FCC (1 << 2) + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class mips3_frontend : public drc_frontend +{ +public: + // construction/destruction + mips3_frontend(mips3_state &state, UINT32 window_start, UINT32 window_end, UINT32 max_sequence); + +protected: + // required overrides + virtual bool describe(opcode_desc &desc, const opcode_desc *prev); + +private: + // internal helpers + bool describe_special(UINT32 op, opcode_desc &desc); + bool describe_regimm(UINT32 op, opcode_desc &desc); + bool describe_idt(UINT32 op, opcode_desc &desc); + bool describe_cop0(UINT32 op, opcode_desc &desc); + bool describe_cop1(UINT32 op, opcode_desc &desc); + bool describe_cop1x(UINT32 op, opcode_desc &desc); + bool describe_cop2(UINT32 op, opcode_desc &desc); + + // internal state + mips3_state &m_context; +}; + + +#endif /* __MIPS3FE_H__ */ |