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// Copyright 2012 Michael Kang, 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#define BITS(a,b) ((instr >> (a)) & ((1 << (1+(b)-(a)))-1))
#define BIT(n) ((instr >> (n)) & 1)
// For MUL instructions
#define RDHi ((instr >> 16) & 0xF)
#define RDLo ((instr >> 12) & 0xF)
#define MUL_RD ((instr >> 16) & 0xF)
#define MUL_RN ((instr >> 12) & 0xF)
#define RS ((instr >> 8) & 0xF)
#define RD ((instr >> 12) & 0xF)
#define RN ((instr >> 16) & 0xF)
#define RM (instr & 0xF)
// CP15 registers
#define OPCODE_1 BITS(21, 23)
#define CRn BITS(16, 19)
#define CRm BITS(0, 3)
#define OPCODE_2 BITS(5, 7)
#define I BIT(25)
#define S BIT(20)
#define SHIFT BITS(5,6)
#define SHIFT_IMM BITS(7,11)
#define IMMH BITS(8,11)
#define IMML BITS(0,3)
#define LSPBIT BIT(24)
#define LSUBIT BIT(23)
#define LSBBIT BIT(22)
#define LSWBIT BIT(21)
#define LSLBIT BIT(20)
#define LSSHBITS BITS(5,6)
#define OFFSET12 BITS(0,11)
#define SBIT BIT(20)
#define DESTReg (BITS (12, 15))
int decode_arm_instr(uint32_t instr, int32_t *idx);
enum DECODE_STATUS {
DECODE_SUCCESS,
DECODE_FAILURE
};
struct instruction_set_encoding_item {
const char *name;
int attribute_value;
int version;
u32 content[21];
};
typedef struct instruction_set_encoding_item ISEITEM;
// ARM versions
enum {
INVALID = 0,
ARMALL,
ARMV4,
ARMV4T,
ARMV5T,
ARMV5TE,
ARMV5TEJ,
ARMV6,
ARM1176JZF_S,
ARMVFP2,
ARMVFP3,
ARMV6K,
};
extern const ISEITEM arm_instruction[];
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