126 lines
3.1 KiB
C
126 lines
3.1 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 u8 opSize[OPTABLE_SIZE];
|
|
|
|
extern dspInstFunc opTable[];
|
|
|
|
void InitInstructionTable();
|
|
|
|
void ComputeInstruction(const UDSPInstruction& inst);
|
|
|
|
// This one's pretty slow, try to use it only at init or seldomly.
|
|
// returns NULL if no matching instruction.
|
|
const DSPOPCTemplate *GetOpTemplate(const UDSPInstruction &inst);
|
|
|
|
#endif // _DSPTABLES_H
|