109 lines
2.4 KiB
C
109 lines
2.4 KiB
C
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// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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// Additional copyrights go to Duddie (c) 2005 (duddie@walla.com)
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#ifndef _DSPTABLES_H
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#define _DSPTABLES_H
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enum parameterType
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{
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P_NONE = 0x0000,
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P_VAL = 0x0001,
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P_IMM = 0x0002,
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P_MEM = 0x0003,
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P_STR = 0x0004,
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P_REG = 0x8000,
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P_REG08 = P_REG | 0x0800,
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P_REG10 = P_REG | 0x1000,
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P_REG18 = P_REG | 0x1800,
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P_REG19 = P_REG | 0x1900,
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P_REG1A = P_REG | 0x1a00,
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P_REG1C = P_REG | 0x1c00,
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P_ACCM = P_REG | 0x1e00,
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P_ACCM_D = P_REG | 0x1e80,
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P_ACC = P_REG | 0x2000,
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P_ACC_D = P_REG | 0x2080,
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P_AX = P_REG | 0x2200,
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P_AX_D = P_REG | 0x2280,
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P_REGS_MASK = 0x03f80,
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P_REF = P_REG | 0x4000,
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P_PRG = P_REF | P_REG,
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};
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#define P_EXT 0x80
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union UDSPInstruction
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{
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u16 hex;
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UDSPInstruction(u16 _hex) { hex = _hex; }
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UDSPInstruction() { hex = 0; }
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struct
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{
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signed shift : 6;
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unsigned negating : 1;
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unsigned arithmetic : 1;
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unsigned areg : 1;
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unsigned op : 7;
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};
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struct
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{
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unsigned ushift : 6;
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};
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// TODO(XK): Figure out more instruction structures (add structs here)
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};
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typedef void (*dspInstFunc)(UDSPInstruction&);
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typedef struct DSPOParams
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{
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parameterType type;
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u8 size;
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u8 loc;
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s8 lshift;
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u16 mask;
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} opcpar_t;
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typedef struct DSPOPCTemplate
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{
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const char *name;
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u16 opcode;
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u16 opcode_mask;
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dspInstFunc interpFunc;
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dspInstFunc jitFunc;
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u8 size;
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u8 param_count;
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DSPOParams params[8];
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} opc_t;
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extern DSPOPCTemplate opcodes[];
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extern const u32 opcodes_size;
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extern opc_t opcodes_ext[];
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extern const u32 opcodes_ext_size;
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void InitInstructionTable();
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void DestroyInstructionTable();
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void ComputeInstruction(UDSPInstruction& inst);
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#endif // _DSPTABLES_H
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