mirror of https://github.com/PCSX2/pcsx2.git
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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// Implementations found here: TEST + BTS/BT/BTC/BTR + BSF/BSR! (for lack of better location)
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namespace x86Emitter {
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// --------------------------------------------------------------------------------------
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// xImpl_Test
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// --------------------------------------------------------------------------------------
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//
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struct xImpl_Test
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{
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void operator()( const xRegister8& to, const xRegister8& from ) const;
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void operator()( const xRegister16& to, const xRegister16& from ) const;
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void operator()( const xRegister32& to, const xRegister32& from ) const;
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void operator()( const xIndirect32orLess& dest, int imm ) const;
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void operator()( const xRegisterInt& to, int imm ) const;
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};
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enum G8Type
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{
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G8Type_BT = 4,
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G8Type_BTS,
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G8Type_BTR,
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G8Type_BTC,
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};
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// --------------------------------------------------------------------------------------
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// BSF / BSR
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// --------------------------------------------------------------------------------------
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// 16/32 operands are available. No 8 bit ones, not that any of you cared, I bet.
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//
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struct xImpl_BitScan
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{
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// 0xbc [fwd] / 0xbd [rev]
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u16 Opcode;
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void operator()( const xRegister32& to, const xRegister32& from ) const;
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void operator()( const xRegister16& to, const xRegister16& from ) const;
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void operator()( const xRegister16or32& to, const xIndirectVoid& sibsrc ) const;
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};
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// --------------------------------------------------------------------------------------
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// xImpl_Group8
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// --------------------------------------------------------------------------------------
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// Bit Test Instructions - Valid on 16/32 bit instructions only.
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//
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struct xImpl_Group8
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{
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G8Type InstType;
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void operator()( const xRegister32& bitbase, const xRegister32& bitoffset ) const;
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void operator()( const xRegister16& bitbase, const xRegister16& bitoffset ) const;
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void operator()( const xRegister16or32& bitbase, u8 bitoffset ) const;
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void operator()( const xIndirectVoid& bitbase, const xRegister16or32& bitoffset ) const;
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void operator()( const xIndirect32& bitbase, u8 bitoffset ) const;
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void operator()( const xIndirect16& bitbase, u8 bitoffset ) const;
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};
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} // End namespace x86Emitter
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