dolphin/Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPTables.h

120 lines
2.8 KiB
C

// Copyright (C) 2003-2009 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// Additional copyrights go to Duddie (c) 2005 (duddie@walla.com)
#ifndef _DSPTABLES_H
#define _DSPTABLES_H
#include "Common.h"
enum parameterType
{
P_NONE = 0x0000,
P_VAL = 0x0001,
P_IMM = 0x0002,
P_MEM = 0x0003,
P_STR = 0x0004,
P_REG = 0x8000,
P_REG08 = P_REG | 0x0800,
P_REG10 = P_REG | 0x1000,
P_REG18 = P_REG | 0x1800,
P_REGM18 = P_REG | 0x1810, // used in multiply instructions
P_REG19 = P_REG | 0x1900,
P_REGM19 = P_REG | 0x1910, // used in multiply instructions
P_REG1A = P_REG | 0x1a00,
P_REG1C = P_REG | 0x1c00,
// P_ACC = P_REG | 0x1c10, // used for global accum (gcdsptool's value)
P_ACCD = P_REG | 0x1c80,
P_ACCM = P_REG | 0x1e00, // used for mid accum
// The following are not in gcdsptool
P_ACCM_D = P_REG | 0x1e80,
P_ACC = P_REG | 0x2000,
P_ACC_D = P_REG | 0x2080,
P_AX = P_REG | 0x2200,
P_AX_D = P_REG | 0x2280,
P_REGS_MASK = 0x03f80, // gcdsptool's value = 0x01f80
P_REF = P_REG | 0x4000,
P_PRG = P_REF | P_REG,
};
#define P_EXT 0x80
#define OPTABLE_SIZE 65536
union UDSPInstruction
{
u16 hex;
UDSPInstruction(u16 _hex) { hex = _hex; }
UDSPInstruction() { hex = 0; }
struct
{
signed shift : 6;
unsigned negating : 1;
unsigned arithmetic : 1;
unsigned areg : 1;
unsigned op : 7;
};
struct
{
unsigned ushift : 6;
};
// TODO: Figure out more instruction structures (add structs here)
};
typedef void (*dspInstFunc)(const UDSPInstruction&);
typedef struct
{
parameterType type;
u8 size;
u8 loc;
s8 lshift;
u16 mask;
} DSPOParams;
typedef struct
{
const char *name;
u16 opcode;
u16 opcode_mask;
dspInstFunc interpFunc;
dspInstFunc jitFunc;
u8 size;
u8 param_count;
DSPOParams params[8];
dspInstFunc prologue;
dspInstFunc epilogue;
} DSPOPCTemplate;
extern DSPOPCTemplate opcodes[];
extern const u32 opcodes_size;
extern DSPOPCTemplate opcodes_ext[];
extern const u32 opcodes_ext_size;
extern dspInstFunc opTable[];
void InitInstructionTable();
void ComputeInstruction(const UDSPInstruction& inst);
#endif // _DSPTABLES_H