[pcsx_rearmed.git] / deps / lightrec / lightrec-private.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2016-2021 Paul Cercueil <paul@crapouillou.net>
 */

#ifndef __LIGHTREC_PRIVATE_H__
#define __LIGHTREC_PRIVATE_H__

#include "lightning-wrapper.h"
#include "lightrec-config.h"
#include "disassembler.h"
#include "lightrec.h"
#include "regcache.h"

#if ENABLE_THREADED_COMPILER
#include <stdatomic.h>
#endif

#ifdef _MSC_BUILD
#include <immintrin.h>
#endif

#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)

#define GENMASK(h, l) \
	(((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h))))

#ifdef __GNUC__
#	define likely(x)       __builtin_expect(!!(x),1)
#	define unlikely(x)     __builtin_expect(!!(x),0)
#else
#	define likely(x)       (x)
#	define unlikely(x)     (x)
#endif

#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#	define LE32TOH(x)	__builtin_bswap32(x)
#	define HTOLE32(x)	__builtin_bswap32(x)
#	define LE16TOH(x)	__builtin_bswap16(x)
#	define HTOLE16(x)	__builtin_bswap16(x)
#else
#	define LE32TOH(x)	(x)
#	define HTOLE32(x)	(x)
#	define LE16TOH(x)	(x)
#	define HTOLE16(x)	(x)
#endif

#if HAS_DEFAULT_ELM
#define SET_DEFAULT_ELM(table, value) [0 ... ARRAY_SIZE(table) - 1] = value
#else
#define SET_DEFAULT_ELM(table, value) [0] = NULL
#endif

#if __has_attribute(__fallthrough__)
#	define fallthrough	__attribute__((__fallthrough__))
#else
#	define fallthrough	do {} while (0)  /* fallthrough */
#endif

#define container_of(ptr, type, member) \
	((type *)((void *)(ptr) - offsetof(type, member)))

#ifdef _MSC_BUILD
#	define popcount32(x)	__popcnt(x)
#	define clz32(x)		_lzcnt_u32(x)
#	define ctz32(x)		_tzcnt_u32(x)
#else
#	define popcount32(x)	__builtin_popcount(x)
#	define clz32(x)		__builtin_clz(x)
#	define ctz32(x)		__builtin_ctz(x)
#endif

/* Flags for (struct block *)->flags */
#define BLOCK_NEVER_COMPILE	BIT(0)
#define BLOCK_SHOULD_RECOMPILE	BIT(1)
#define BLOCK_FULLY_TAGGED	BIT(2)
#define BLOCK_IS_DEAD		BIT(3)
#define BLOCK_IS_MEMSET		BIT(4)
#define BLOCK_NO_OPCODE_LIST	BIT(5)
#define BLOCK_PRELOAD_PC	BIT(6)

#define RAM_SIZE	0x200000
#define BIOS_SIZE	0x80000

#define CODE_LUT_SIZE	((RAM_SIZE + BIOS_SIZE) >> 2)

#define REG_LO 32
#define REG_HI 33
#define REG_TEMP (offsetof(struct lightrec_state, temp_reg) / sizeof(u32))

/* Definition of jit_state_t (avoids inclusion of <lightning.h>) */
struct jit_node;
struct jit_state;
typedef struct jit_state jit_state_t;

struct blockcache;
struct recompiler;
struct regcache;
struct opcode;
struct reaper;

struct u16x2 {
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	u16 h, l;
#else
	u16 l, h;
#endif
};

struct block {
	jit_state_t *_jit;
	struct opcode *opcode_list;
	void (*function)(void);
	const u32 *code;
	struct block *next;
	u32 pc;
	u32 hash;
	u32 precompile_date;
	unsigned int code_size;
	u16 nb_ops;
#if ENABLE_THREADED_COMPILER
	_Atomic u8 flags;
#else
	u8 flags;
#endif
};

struct lightrec_branch {
	struct jit_node *branch;
	u32 target;
};

struct lightrec_branch_target {
	struct jit_node *label;
	u32 offset;
};

enum c_wrappers {
	C_WRAPPER_RW,
	C_WRAPPER_RW_GENERIC,
	C_WRAPPER_MFC,
	C_WRAPPER_MTC,
	C_WRAPPER_CP,
	C_WRAPPERS_COUNT,
};

struct lightrec_cstate {
	struct lightrec_state *state;

	struct lightrec_branch local_branches[512];
	struct lightrec_branch_target targets[512];
	u16 movi_temp[32];
	unsigned int nb_local_branches;
	unsigned int nb_targets;
	unsigned int cycles;

	struct regcache *reg_cache;

	_Bool no_load_delay;
};

struct lightrec_state {
	struct lightrec_registers regs;
	u32 temp_reg;
	u32 curr_pc;
	u32 next_pc;
	uintptr_t wrapper_regs[NUM_TEMPS];
	u8 in_delay_slot_n;
	u32 current_cycle;
	u32 target_cycle;
	u32 exit_flags;
	u32 old_cycle_counter;
	u32 cycles_per_op;
	struct block *dispatcher, *c_wrapper_block;
	void *c_wrappers[C_WRAPPERS_COUNT];
	void *wrappers_eps[C_WRAPPERS_COUNT];
	struct blockcache *block_cache;
	struct recompiler *rec;
	struct lightrec_cstate *cstate;
	struct reaper *reaper;
	void *tlsf;
	void (*eob_wrapper_func)(void);
	void (*interpreter_func)(void);
	void (*ds_check_func)(void);
	void (*memset_func)(void);
	void (*get_next_block)(void);
	struct lightrec_ops ops;
	unsigned int nb_precompile;
	unsigned int nb_compile;
	unsigned int nb_maps;
	const struct lightrec_mem_map *maps;
	uintptr_t offset_ram, offset_bios, offset_scratch, offset_io;
	u32 opt_flags;
	_Bool with_32bit_lut;
	_Bool mirrors_mapped;
	void *code_lut[];
};

u32 lightrec_rw(struct lightrec_state *state, union code op, u32 addr,
		u32 data, u32 *flags, struct block *block, u16 offset);

void lightrec_free_block(struct lightrec_state *state, struct block *block);

void remove_from_code_lut(struct blockcache *cache, struct block *block);

const struct lightrec_mem_map *
lightrec_get_map(struct lightrec_state *state, void **host, u32 kaddr);

static inline u32 kunseg(u32 addr)
{
	if (unlikely(addr >= 0xa0000000))
		return addr - 0xa0000000;
	else
		return addr &~ 0x80000000;
}

static inline u32 lut_offset(u32 pc)
{
	if (pc & BIT(28))
		return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS
	else
		return (pc & (RAM_SIZE - 1)) >> 2; // RAM
}

static inline _Bool is_big_endian(void)
{
	return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__;
}

static inline _Bool lut_is_32bit(const struct lightrec_state *state)
{
	return __WORDSIZE == 32 ||
		(ENABLE_CODE_BUFFER && state->with_32bit_lut);
}

static inline size_t lut_elm_size(const struct lightrec_state *state)
{
	return lut_is_32bit(state) ? 4 : sizeof(void *);
}

static inline void ** lut_address(struct lightrec_state *state, u32 offset)
{
	if (lut_is_32bit(state))
		return (void **) ((uintptr_t) state->code_lut + offset * 4);
	else
		return &state->code_lut[offset];
}

static inline void * lut_read(struct lightrec_state *state, u32 offset)
{
	void **lut_entry = lut_address(state, offset);

	if (lut_is_32bit(state))
		return (void *)(uintptr_t) *(u32 *) lut_entry;
	else
		return *lut_entry;
}

static inline void lut_write(struct lightrec_state *state, u32 offset, void *ptr)
{
	void **lut_entry = lut_address(state, offset);

	if (lut_is_32bit(state))
		*(u32 *) lut_entry = (u32)(uintptr_t) ptr;
	else
		*lut_entry = ptr;
}

static inline u32 get_ds_pc(const struct block *block, u16 offset, s16 imm)
{
	u16 flags = block->opcode_list[offset].flags;

	offset += op_flag_no_ds(flags);

	return block->pc + ((offset + imm) << 2);
}

static inline u32 get_branch_pc(const struct block *block, u16 offset, s16 imm)
{
	u16 flags = block->opcode_list[offset].flags;

	offset -= op_flag_no_ds(flags);

	return block->pc + ((offset + imm) << 2);
}

void lightrec_mtc(struct lightrec_state *state, union code op, u8 reg, u32 data);
u32 lightrec_mfc(struct lightrec_state *state, union code op);
void lightrec_rfe(struct lightrec_state *state);
void lightrec_cp(struct lightrec_state *state, union code op);

struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state);
void lightrec_free_cstate(struct lightrec_cstate *cstate);

union code lightrec_read_opcode(struct lightrec_state *state, u32 pc);

int lightrec_compile_block(struct lightrec_cstate *cstate, struct block *block);
void lightrec_free_opcode_list(struct lightrec_state *state,
			       struct opcode *list);

unsigned int lightrec_cycles_of_opcode(const struct lightrec_state *state,
				       union code code);

static inline u8 get_mult_div_lo(union code c)
{
	return (OPT_FLAG_MULT_DIV && c.r.rd) ? c.r.rd : REG_LO;
}

static inline u8 get_mult_div_hi(union code c)
{
	return (OPT_FLAG_MULT_DIV && c.r.imm) ? c.r.imm : REG_HI;
}

static inline s16 s16_max(s16 a, s16 b)
{
	return a > b ? a : b;
}

static inline _Bool block_has_flag(struct block *block, u8 flag)
{
#if ENABLE_THREADED_COMPILER
	return atomic_load_explicit(&block->flags, memory_order_relaxed) & flag;
#else
	return block->flags & flag;
#endif
}

static inline u8 block_set_flags(struct block *block, u8 mask)
{
#if ENABLE_THREADED_COMPILER
	return atomic_fetch_or_explicit(&block->flags, mask,
					memory_order_relaxed);
#else
	u8 flags = block->flags;

	block->flags |= mask;

	return flags;
#endif
}

static inline u8 block_clear_flags(struct block *block, u8 mask)
{
#if ENABLE_THREADED_COMPILER
	return atomic_fetch_and_explicit(&block->flags, ~mask,
					 memory_order_relaxed);
#else
	u8 flags = block->flags;

	block->flags &= ~mask;

	return flags;
#endif
}

static inline _Bool can_sign_extend(s32 value, u8 order)
{
      return ((u32)(value >> (order - 1)) + 1) < 2;
}

static inline _Bool can_zero_extend(u32 value, u8 order)
{
      return (value >> order) == 0;
}

static inline const struct opcode *
get_delay_slot(const struct opcode *list, u16 i)
{
	return op_flag_no_ds(list[i].flags) ? &list[i - 1] : &list[i + 1];
}

static inline _Bool lightrec_store_next_pc(void)
{
	return NUM_REGS + NUM_TEMPS <= 4;
}

#endif /* __LIGHTREC_PRIVATE_H__ */
Commit	Line	Data
98fa08a5	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
d16005f8	2	/*
98fa08a5	3	* Copyright (C) 2016-2021 Paul Cercueil <paul@crapouillou.net>
d16005f8 PC	4	*/
	5
	6	#ifndef __LIGHTREC_PRIVATE_H__
	7	#define __LIGHTREC_PRIVATE_H__
	8
02487de7	9	#include "lightning-wrapper.h"
98fa08a5	10	#include "lightrec-config.h"
d16005f8 PC	11	#include "disassembler.h"
d16005f8 PC	12	#include "lightrec.h"
ba3814c1	13	#include "regcache.h"
d16005f8 PC	14
	15	#if ENABLE_THREADED_COMPILER
	16	#include <stdatomic.h>
	17	#endif
	18
13b02197 PC	19	#ifdef _MSC_BUILD
	20	#include <immintrin.h>
	21	#endif
	22
d16005f8	23	#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
d16005f8	24
13b02197 PC	25	#define GENMASK(h, l) \
	26	(((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h))))
	27
d16005f8 PC	28	#ifdef __GNUC__
	29	# define likely(x) __builtin_expect(!!(x),1)
	30	# define unlikely(x) __builtin_expect(!!(x),0)
	31	#else
	32	# define likely(x) (x)
	33	# define unlikely(x) (x)
	34	#endif
	35
	36	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	37	# define LE32TOH(x) __builtin_bswap32(x)
	38	# define HTOLE32(x) __builtin_bswap32(x)
	39	# define LE16TOH(x) __builtin_bswap16(x)
	40	# define HTOLE16(x) __builtin_bswap16(x)
	41	#else
	42	# define LE32TOH(x) (x)
	43	# define HTOLE32(x) (x)
	44	# define LE16TOH(x) (x)
	45	# define HTOLE16(x) (x)
	46	#endif
	47
98fa08a5 PC	48	#if HAS_DEFAULT_ELM
	49	#define SET_DEFAULT_ELM(table, value) [0 ... ARRAY_SIZE(table) - 1] = value
	50	#else
	51	#define SET_DEFAULT_ELM(table, value) [0] = NULL
	52	#endif
	53
684432ad PC	54	#if __has_attribute(__fallthrough__)
	55	# define fallthrough __attribute__((__fallthrough__))
	56	#else
	57	# define fallthrough do {} while (0) /* fallthrough */
	58	#endif
d8b04acd	59
ba3814c1 PC	60	#define container_of(ptr, type, member) \
	61	((type )((void )(ptr) - offsetof(type, member)))
	62
	63	#ifdef _MSC_BUILD
	64	# define popcount32(x) __popcnt(x)
13b02197 PC	65	# define clz32(x) _lzcnt_u32(x)
13b02197 PC	66	# define ctz32(x) _tzcnt_u32(x)
ba3814c1 PC	67	#else
ba3814c1 PC	68	# define popcount32(x) __builtin_popcount(x)
13b02197 PC	69	# define clz32(x) __builtin_clz(x)
13b02197 PC	70	# define ctz32(x) __builtin_ctz(x)
ba3814c1 PC	71	#endif
ba3814c1 PC	72
d16005f8 PC	73	/* Flags for (struct block )->flags /
	74	#define BLOCK_NEVER_COMPILE BIT(0)
	75	#define BLOCK_SHOULD_RECOMPILE BIT(1)
	76	#define BLOCK_FULLY_TAGGED BIT(2)
a59e5536	77	#define BLOCK_IS_DEAD BIT(3)
98fa08a5	78	#define BLOCK_IS_MEMSET BIT(4)
ba3814c1	79	#define BLOCK_NO_OPCODE_LIST BIT(5)
684432ad	80	#define BLOCK_PRELOAD_PC BIT(6)
d16005f8 PC	81
	82	#define RAM_SIZE 0x200000
	83	#define BIOS_SIZE 0x80000
	84
	85	#define CODE_LUT_SIZE ((RAM_SIZE + BIOS_SIZE) >> 2)
	86
98fa08a5 PC	87	#define REG_LO 32
98fa08a5 PC	88	#define REG_HI 33
cb72ea13	89	#define REG_TEMP (offsetof(struct lightrec_state, temp_reg) / sizeof(u32))
98fa08a5	90
d16005f8 PC	91	/* Definition of jit_state_t (avoids inclusion of <lightning.h>) */
	92	struct jit_node;
	93	struct jit_state;
	94	typedef struct jit_state jit_state_t;
	95
	96	struct blockcache;
	97	struct recompiler;
	98	struct regcache;
	99	struct opcode;
a59e5536	100	struct reaper;
d16005f8	101
11357fef PC	102	struct u16x2 {
	103	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	104	u16 h, l;
	105	#else
	106	u16 l, h;
	107	#endif
	108	};
	109
d16005f8 PC	110	struct block {
d16005f8 PC	111	jit_state_t *_jit;
d16005f8 PC	112	struct opcode *opcode_list;
d16005f8 PC	113	void (*function)(void);
98fa08a5 PC	114	const u32 *code;
98fa08a5 PC	115	struct block *next;
d16005f8 PC	116	u32 pc;
d16005f8 PC	117	u32 hash;
d8b04acd	118	u32 precompile_date;
98fa08a5 PC	119	unsigned int code_size;
98fa08a5 PC	120	u16 nb_ops;
d16005f8	121	#if ENABLE_THREADED_COMPILER
ba3814c1 PC	122	_Atomic u8 flags;
	123	#else
	124	u8 flags;
d16005f8	125	#endif
d16005f8 PC	126	};
	127
	128	struct lightrec_branch {
	129	struct jit_node *branch;
	130	u32 target;
	131	};
	132
	133	struct lightrec_branch_target {
	134	struct jit_node *label;
	135	u32 offset;
	136	};
	137
98fa08a5 PC	138	enum c_wrappers {
	139	C_WRAPPER_RW,
	140	C_WRAPPER_RW_GENERIC,
fdf33147	141	C_WRAPPER_MFC,
98fa08a5 PC	142	C_WRAPPER_MTC,
98fa08a5 PC	143	C_WRAPPER_CP,
98fa08a5 PC	144	C_WRAPPERS_COUNT,
	145	};
	146
	147	struct lightrec_cstate {
	148	struct lightrec_state *state;
	149
d16005f8 PC	150	struct lightrec_branch local_branches[512];
d16005f8 PC	151	struct lightrec_branch_target targets[512];
684432ad	152	u16 movi_temp[32];
d16005f8 PC	153	unsigned int nb_local_branches;
d16005f8 PC	154	unsigned int nb_targets;
98fa08a5 PC	155	unsigned int cycles;
	156
	157	struct regcache *reg_cache;
cb72ea13 PC	158
cb72ea13 PC	159	_Bool no_load_delay;
98fa08a5 PC	160	};
	161
	162	struct lightrec_state {
	163	struct lightrec_registers regs;
cb72ea13	164	u32 temp_reg;
0e720fb1	165	u32 curr_pc;
98fa08a5	166	u32 next_pc;
9259d748	167	uintptr_t wrapper_regs[NUM_TEMPS];
cb72ea13	168	u8 in_delay_slot_n;
98fa08a5 PC	169	u32 current_cycle;
	170	u32 target_cycle;
	171	u32 exit_flags;
	172	u32 old_cycle_counter;
684432ad	173	u32 cycles_per_op;
98fa08a5	174	struct block dispatcher, c_wrapper_block;
fd58fa32 PC	175	void *c_wrappers[C_WRAPPERS_COUNT];
fd58fa32 PC	176	void *wrappers_eps[C_WRAPPERS_COUNT];
d16005f8	177	struct blockcache *block_cache;
d16005f8	178	struct recompiler *rec;
98fa08a5	179	struct lightrec_cstate *cstate;
a59e5536	180	struct reaper *reaper;
02487de7	181	void *tlsf;
d16005f8	182	void (*eob_wrapper_func)(void);
cb72ea13 PC	183	void (*interpreter_func)(void);
cb72ea13 PC	184	void (*ds_check_func)(void);
98fa08a5	185	void (*memset_func)(void);
d16005f8 PC	186	void (*get_next_block)(void);
d16005f8 PC	187	struct lightrec_ops ops;
a59e5536	188	unsigned int nb_precompile;
cb72ea13	189	unsigned int nb_compile;
d16005f8 PC	190	unsigned int nb_maps;
d16005f8 PC	191	const struct lightrec_mem_map *maps;
ba3814c1	192	uintptr_t offset_ram, offset_bios, offset_scratch, offset_io;
684432ad	193	u32 opt_flags;
02487de7	194	_Bool with_32bit_lut;
d16005f8	195	_Bool mirrors_mapped;
d16005f8 PC	196	void *code_lut[];
	197	};
	198
cb72ea13 PC	199	u32 lightrec_rw(struct lightrec_state *state, union code op, u32 addr,
cb72ea13 PC	200	u32 data, u32 flags, struct block block, u16 offset);
d16005f8	201
98fa08a5	202	void lightrec_free_block(struct lightrec_state state, struct block block);
d16005f8 PC	203
	204	void remove_from_code_lut(struct blockcache cache, struct block block);
	205
98fa08a5 PC	206	const struct lightrec_mem_map *
	207	lightrec_get_map(struct lightrec_state state, void *host, u32 kaddr);
	208
d16005f8 PC	209	static inline u32 kunseg(u32 addr)
	210	{
	211	if (unlikely(addr >= 0xa0000000))
	212	return addr - 0xa0000000;
	213	else
	214	return addr &~ 0x80000000;
	215	}
	216
	217	static inline u32 lut_offset(u32 pc)
	218	{
	219	if (pc & BIT(28))
	220	return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS
	221	else
	222	return (pc & (RAM_SIZE - 1)) >> 2; // RAM
	223	}
	224
02487de7 PC	225	static inline _Bool is_big_endian(void)
	226	{
	227	return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__;
	228	}
	229
	230	static inline _Bool lut_is_32bit(const struct lightrec_state *state)
	231	{
	232	return __WORDSIZE == 32 \|\|
	233	(ENABLE_CODE_BUFFER && state->with_32bit_lut);
	234	}
	235
	236	static inline size_t lut_elm_size(const struct lightrec_state *state)
	237	{
	238	return lut_is_32bit(state) ? 4 : sizeof(void *);
	239	}
	240
	241	static inline void ** lut_address(struct lightrec_state *state, u32 offset)
	242	{
	243	if (lut_is_32bit(state))
	244	return (void *) ((uintptr_t) state->code_lut + offset 4);
	245	else
	246	return &state->code_lut[offset];
	247	}
	248
	249	static inline void * lut_read(struct lightrec_state *state, u32 offset)
	250	{
d8b04acd	251	void **lut_entry = lut_address(state, offset);
02487de7 PC	252
	253	if (lut_is_32bit(state))
	254	return (void )(uintptr_t) (u32 *) lut_entry;
	255	else
	256	return *lut_entry;
	257	}
	258
	259	static inline void lut_write(struct lightrec_state state, u32 offset, void ptr)
	260	{
	261	void **lut_entry = lut_address(state, offset);
	262
	263	if (lut_is_32bit(state))
	264	(u32 ) lut_entry = (u32)(uintptr_t) ptr;
	265	else
	266	*lut_entry = ptr;
	267	}
	268
98fa08a5 PC	269	static inline u32 get_ds_pc(const struct block *block, u16 offset, s16 imm)
	270	{
	271	u16 flags = block->opcode_list[offset].flags;
	272
03535202	273	offset += op_flag_no_ds(flags);
98fa08a5	274
684432ad	275	return block->pc + ((offset + imm) << 2);
98fa08a5 PC	276	}
	277
	278	static inline u32 get_branch_pc(const struct block *block, u16 offset, s16 imm)
	279	{
	280	u16 flags = block->opcode_list[offset].flags;
	281
03535202	282	offset -= op_flag_no_ds(flags);
98fa08a5	283
684432ad	284	return block->pc + ((offset + imm) << 2);
98fa08a5 PC	285	}
98fa08a5 PC	286
9259d748	287	void lightrec_mtc(struct lightrec_state *state, union code op, u8 reg, u32 data);
d16005f8	288	u32 lightrec_mfc(struct lightrec_state *state, union code op);
98fa08a5 PC	289	void lightrec_rfe(struct lightrec_state *state);
	290	void lightrec_cp(struct lightrec_state *state, union code op);
	291
	292	struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state);
	293	void lightrec_free_cstate(struct lightrec_cstate *cstate);
d16005f8 PC	294
	295	union code lightrec_read_opcode(struct lightrec_state *state, u32 pc);
	296
98fa08a5	297	int lightrec_compile_block(struct lightrec_cstate cstate, struct block block);
ba3814c1 PC	298	void lightrec_free_opcode_list(struct lightrec_state *state,
ba3814c1 PC	299	struct opcode *list);
98fa08a5	300
684432ad PC	301	unsigned int lightrec_cycles_of_opcode(const struct lightrec_state *state,
684432ad PC	302	union code code);
98fa08a5 PC	303
	304	static inline u8 get_mult_div_lo(union code c)
	305	{
	306	return (OPT_FLAG_MULT_DIV && c.r.rd) ? c.r.rd : REG_LO;
	307	}
	308
	309	static inline u8 get_mult_div_hi(union code c)
	310	{
	311	return (OPT_FLAG_MULT_DIV && c.r.imm) ? c.r.imm : REG_HI;
	312	}
d16005f8	313
03535202 PC	314	static inline s16 s16_max(s16 a, s16 b)
	315	{
	316	return a > b ? a : b;
	317	}
	318
ba3814c1 PC	319	static inline _Bool block_has_flag(struct block *block, u8 flag)
	320	{
	321	#if ENABLE_THREADED_COMPILER
	322	return atomic_load_explicit(&block->flags, memory_order_relaxed) & flag;
	323	#else
	324	return block->flags & flag;
	325	#endif
	326	}
	327
	328	static inline u8 block_set_flags(struct block *block, u8 mask)
	329	{
	330	#if ENABLE_THREADED_COMPILER
	331	return atomic_fetch_or_explicit(&block->flags, mask,
	332	memory_order_relaxed);
	333	#else
	334	u8 flags = block->flags;
	335
	336	block->flags \|= mask;
	337
	338	return flags;
	339	#endif
	340	}
	341
	342	static inline u8 block_clear_flags(struct block *block, u8 mask)
	343	{
	344	#if ENABLE_THREADED_COMPILER
	345	return atomic_fetch_and_explicit(&block->flags, ~mask,
	346	memory_order_relaxed);
	347	#else
	348	u8 flags = block->flags;
	349
	350	block->flags &= ~mask;
	351
	352	return flags;
	353	#endif
	354	}
	355
9259d748 PC	356	static inline _Bool can_sign_extend(s32 value, u8 order)
9259d748 PC	357	{
684432ad	358	return ((u32)(value >> (order - 1)) + 1) < 2;
9259d748 PC	359	}
	360
	361	static inline _Bool can_zero_extend(u32 value, u8 order)
	362	{
	363	return (value >> order) == 0;
	364	}
	365
cb72ea13 PC	366	static inline const struct opcode *
	367	get_delay_slot(const struct opcode *list, u16 i)
	368	{
	369	return op_flag_no_ds(list[i].flags) ? &list[i - 1] : &list[i + 1];
	370	}
	371
0e720fb1 PC	372	static inline _Bool lightrec_store_next_pc(void)
	373	{
	374	return NUM_REGS + NUM_TEMPS <= 4;
	375	}
	376
d16005f8	377	#endif /* __LIGHTREC_PRIVATE_H__ */