[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

#include <inttypes.h>
#include <stdint.h>

#define PC_FMT "PC 0x%08"PRIx32

#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
f5ee77ca PC	23	#include <inttypes.h>
	24	#include <stdint.h>
	25
	26	#define PC_FMT "PC 0x%08"PRIx32
	27
d16005f8	28	#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
d16005f8	29
13b02197 PC	30	#define GENMASK(h, l) \
	31	(((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h))))
	32
d16005f8 PC	33	#ifdef __GNUC__
	34	# define likely(x) __builtin_expect(!!(x),1)
	35	# define unlikely(x) __builtin_expect(!!(x),0)
	36	#else
	37	# define likely(x) (x)
	38	# define unlikely(x) (x)
	39	#endif
	40
	41	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	42	# define LE32TOH(x) __builtin_bswap32(x)
	43	# define HTOLE32(x) __builtin_bswap32(x)
	44	# define LE16TOH(x) __builtin_bswap16(x)
	45	# define HTOLE16(x) __builtin_bswap16(x)
	46	#else
	47	# define LE32TOH(x) (x)
	48	# define HTOLE32(x) (x)
	49	# define LE16TOH(x) (x)
	50	# define HTOLE16(x) (x)
	51	#endif
	52
98fa08a5 PC	53	#if HAS_DEFAULT_ELM
	54	#define SET_DEFAULT_ELM(table, value) [0 ... ARRAY_SIZE(table) - 1] = value
	55	#else
	56	#define SET_DEFAULT_ELM(table, value) [0] = NULL
	57	#endif
	58
684432ad PC	59	#if __has_attribute(__fallthrough__)
	60	# define fallthrough __attribute__((__fallthrough__))
	61	#else
	62	# define fallthrough do {} while (0) /* fallthrough */
	63	#endif
d8b04acd	64
ba3814c1 PC	65	#define container_of(ptr, type, member) \
	66	((type )((void )(ptr) - offsetof(type, member)))
	67
	68	#ifdef _MSC_BUILD
	69	# define popcount32(x) __popcnt(x)
13b02197 PC	70	# define clz32(x) _lzcnt_u32(x)
13b02197 PC	71	# define ctz32(x) _tzcnt_u32(x)
ba3814c1 PC	72	#else
ba3814c1 PC	73	# define popcount32(x) __builtin_popcount(x)
13b02197 PC	74	# define clz32(x) __builtin_clz(x)
13b02197 PC	75	# define ctz32(x) __builtin_ctz(x)
ba3814c1 PC	76	#endif
ba3814c1 PC	77
d16005f8 PC	78	/* Flags for (struct block )->flags /
	79	#define BLOCK_NEVER_COMPILE BIT(0)
	80	#define BLOCK_SHOULD_RECOMPILE BIT(1)
	81	#define BLOCK_FULLY_TAGGED BIT(2)
a59e5536	82	#define BLOCK_IS_DEAD BIT(3)
98fa08a5	83	#define BLOCK_IS_MEMSET BIT(4)
ba3814c1	84	#define BLOCK_NO_OPCODE_LIST BIT(5)
684432ad	85	#define BLOCK_PRELOAD_PC BIT(6)
d16005f8 PC	86
	87	#define RAM_SIZE 0x200000
	88	#define BIOS_SIZE 0x80000
	89
	90	#define CODE_LUT_SIZE ((RAM_SIZE + BIOS_SIZE) >> 2)
	91
98fa08a5 PC	92	#define REG_LO 32
98fa08a5 PC	93	#define REG_HI 33
cb72ea13	94	#define REG_TEMP (offsetof(struct lightrec_state, temp_reg) / sizeof(u32))
98fa08a5	95
d16005f8 PC	96	/* Definition of jit_state_t (avoids inclusion of <lightning.h>) */
	97	struct jit_node;
	98	struct jit_state;
	99	typedef struct jit_state jit_state_t;
	100
	101	struct blockcache;
	102	struct recompiler;
	103	struct regcache;
	104	struct opcode;
a59e5536	105	struct reaper;
d16005f8	106
11357fef PC	107	struct u16x2 {
	108	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	109	u16 h, l;
	110	#else
	111	u16 l, h;
	112	#endif
	113	};
	114
d16005f8 PC	115	struct block {
d16005f8 PC	116	jit_state_t *_jit;
d16005f8 PC	117	struct opcode *opcode_list;
d16005f8 PC	118	void (*function)(void);
98fa08a5 PC	119	const u32 *code;
98fa08a5 PC	120	struct block *next;
d16005f8 PC	121	u32 pc;
d16005f8 PC	122	u32 hash;
d8b04acd	123	u32 precompile_date;
98fa08a5 PC	124	unsigned int code_size;
98fa08a5 PC	125	u16 nb_ops;
d16005f8	126	#if ENABLE_THREADED_COMPILER
ba3814c1 PC	127	_Atomic u8 flags;
	128	#else
	129	u8 flags;
d16005f8	130	#endif
d16005f8 PC	131	};
	132
	133	struct lightrec_branch {
	134	struct jit_node *branch;
	135	u32 target;
	136	};
	137
	138	struct lightrec_branch_target {
	139	struct jit_node *label;
	140	u32 offset;
	141	};
	142
98fa08a5 PC	143	enum c_wrappers {
	144	C_WRAPPER_RW,
	145	C_WRAPPER_RW_GENERIC,
fdf33147	146	C_WRAPPER_MFC,
98fa08a5 PC	147	C_WRAPPER_MTC,
98fa08a5 PC	148	C_WRAPPER_CP,
98fa08a5 PC	149	C_WRAPPERS_COUNT,
	150	};
	151
	152	struct lightrec_cstate {
	153	struct lightrec_state *state;
	154
d16005f8 PC	155	struct lightrec_branch local_branches[512];
d16005f8 PC	156	struct lightrec_branch_target targets[512];
684432ad	157	u16 movi_temp[32];
d16005f8 PC	158	unsigned int nb_local_branches;
d16005f8 PC	159	unsigned int nb_targets;
98fa08a5 PC	160	unsigned int cycles;
	161
	162	struct regcache *reg_cache;
cb72ea13 PC	163
cb72ea13 PC	164	_Bool no_load_delay;
98fa08a5 PC	165	};
	166
	167	struct lightrec_state {
	168	struct lightrec_registers regs;
cb72ea13	169	u32 temp_reg;
0e720fb1	170	u32 curr_pc;
98fa08a5	171	u32 next_pc;
9259d748	172	uintptr_t wrapper_regs[NUM_TEMPS];
cb72ea13	173	u8 in_delay_slot_n;
98fa08a5 PC	174	u32 current_cycle;
	175	u32 target_cycle;
	176	u32 exit_flags;
	177	u32 old_cycle_counter;
684432ad	178	u32 cycles_per_op;
98fa08a5	179	struct block dispatcher, c_wrapper_block;
fd58fa32 PC	180	void *c_wrappers[C_WRAPPERS_COUNT];
fd58fa32 PC	181	void *wrappers_eps[C_WRAPPERS_COUNT];
d16005f8	182	struct blockcache *block_cache;
d16005f8	183	struct recompiler *rec;
98fa08a5	184	struct lightrec_cstate *cstate;
a59e5536	185	struct reaper *reaper;
02487de7	186	void *tlsf;
d16005f8	187	void (*eob_wrapper_func)(void);
cb72ea13 PC	188	void (*interpreter_func)(void);
cb72ea13 PC	189	void (*ds_check_func)(void);
98fa08a5	190	void (*memset_func)(void);
d16005f8 PC	191	void (*get_next_block)(void);
d16005f8 PC	192	struct lightrec_ops ops;
a59e5536	193	unsigned int nb_precompile;
cb72ea13	194	unsigned int nb_compile;
d16005f8 PC	195	unsigned int nb_maps;
d16005f8 PC	196	const struct lightrec_mem_map *maps;
ba3814c1	197	uintptr_t offset_ram, offset_bios, offset_scratch, offset_io;
684432ad	198	u32 opt_flags;
02487de7	199	_Bool with_32bit_lut;
d16005f8	200	_Bool mirrors_mapped;
d16005f8 PC	201	void *code_lut[];
	202	};
	203
cb72ea13 PC	204	u32 lightrec_rw(struct lightrec_state *state, union code op, u32 addr,
cb72ea13 PC	205	u32 data, u32 flags, struct block block, u16 offset);
d16005f8	206
98fa08a5	207	void lightrec_free_block(struct lightrec_state state, struct block block);
d16005f8 PC	208
	209	void remove_from_code_lut(struct blockcache cache, struct block block);
	210
98fa08a5 PC	211	const struct lightrec_mem_map *
	212	lightrec_get_map(struct lightrec_state state, void *host, u32 kaddr);
	213
d16005f8 PC	214	static inline u32 kunseg(u32 addr)
	215	{
	216	if (unlikely(addr >= 0xa0000000))
	217	return addr - 0xa0000000;
	218	else
	219	return addr &~ 0x80000000;
	220	}
	221
	222	static inline u32 lut_offset(u32 pc)
	223	{
	224	if (pc & BIT(28))
	225	return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS
	226	else
	227	return (pc & (RAM_SIZE - 1)) >> 2; // RAM
	228	}
	229
02487de7 PC	230	static inline _Bool is_big_endian(void)
	231	{
	232	return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__;
	233	}
	234
	235	static inline _Bool lut_is_32bit(const struct lightrec_state *state)
	236	{
	237	return __WORDSIZE == 32 \|\|
	238	(ENABLE_CODE_BUFFER && state->with_32bit_lut);
	239	}
	240
	241	static inline size_t lut_elm_size(const struct lightrec_state *state)
	242	{
	243	return lut_is_32bit(state) ? 4 : sizeof(void *);
	244	}
	245
	246	static inline void ** lut_address(struct lightrec_state *state, u32 offset)
	247	{
	248	if (lut_is_32bit(state))
	249	return (void *) ((uintptr_t) state->code_lut + offset 4);
	250	else
	251	return &state->code_lut[offset];
	252	}
	253
	254	static inline void * lut_read(struct lightrec_state *state, u32 offset)
	255	{
d8b04acd	256	void **lut_entry = lut_address(state, offset);
02487de7 PC	257
	258	if (lut_is_32bit(state))
	259	return (void )(uintptr_t) (u32 *) lut_entry;
	260	else
	261	return *lut_entry;
	262	}
	263
	264	static inline void lut_write(struct lightrec_state state, u32 offset, void ptr)
	265	{
	266	void **lut_entry = lut_address(state, offset);
	267
	268	if (lut_is_32bit(state))
	269	(u32 ) lut_entry = (u32)(uintptr_t) ptr;
	270	else
	271	*lut_entry = ptr;
	272	}
	273
98fa08a5 PC	274	static inline u32 get_ds_pc(const struct block *block, u16 offset, s16 imm)
	275	{
	276	u16 flags = block->opcode_list[offset].flags;
	277
03535202	278	offset += op_flag_no_ds(flags);
98fa08a5	279
684432ad	280	return block->pc + ((offset + imm) << 2);
98fa08a5 PC	281	}
	282
	283	static inline u32 get_branch_pc(const struct block *block, u16 offset, s16 imm)
	284	{
	285	u16 flags = block->opcode_list[offset].flags;
	286
03535202	287	offset -= op_flag_no_ds(flags);
98fa08a5	288
684432ad	289	return block->pc + ((offset + imm) << 2);
98fa08a5 PC	290	}
98fa08a5 PC	291
9259d748	292	void lightrec_mtc(struct lightrec_state *state, union code op, u8 reg, u32 data);
d16005f8	293	u32 lightrec_mfc(struct lightrec_state *state, union code op);
98fa08a5 PC	294	void lightrec_rfe(struct lightrec_state *state);
	295	void lightrec_cp(struct lightrec_state *state, union code op);
	296
	297	struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state);
	298	void lightrec_free_cstate(struct lightrec_cstate *cstate);
d16005f8 PC	299
	300	union code lightrec_read_opcode(struct lightrec_state *state, u32 pc);
	301
98fa08a5	302	int lightrec_compile_block(struct lightrec_cstate cstate, struct block block);
ba3814c1 PC	303	void lightrec_free_opcode_list(struct lightrec_state *state,
ba3814c1 PC	304	struct opcode *list);
98fa08a5	305
684432ad PC	306	unsigned int lightrec_cycles_of_opcode(const struct lightrec_state *state,
684432ad PC	307	union code code);
98fa08a5 PC	308
	309	static inline u8 get_mult_div_lo(union code c)
	310	{
	311	return (OPT_FLAG_MULT_DIV && c.r.rd) ? c.r.rd : REG_LO;
	312	}
	313
	314	static inline u8 get_mult_div_hi(union code c)
	315	{
	316	return (OPT_FLAG_MULT_DIV && c.r.imm) ? c.r.imm : REG_HI;
	317	}
d16005f8	318
03535202 PC	319	static inline s16 s16_max(s16 a, s16 b)
	320	{
	321	return a > b ? a : b;
	322	}
	323
ba3814c1 PC	324	static inline _Bool block_has_flag(struct block *block, u8 flag)
	325	{
	326	#if ENABLE_THREADED_COMPILER
	327	return atomic_load_explicit(&block->flags, memory_order_relaxed) & flag;
	328	#else
	329	return block->flags & flag;
	330	#endif
	331	}
	332
	333	static inline u8 block_set_flags(struct block *block, u8 mask)
	334	{
	335	#if ENABLE_THREADED_COMPILER
	336	return atomic_fetch_or_explicit(&block->flags, mask,
	337	memory_order_relaxed);
	338	#else
	339	u8 flags = block->flags;
	340
	341	block->flags \|= mask;
	342
	343	return flags;
	344	#endif
	345	}
	346
	347	static inline u8 block_clear_flags(struct block *block, u8 mask)
	348	{
	349	#if ENABLE_THREADED_COMPILER
	350	return atomic_fetch_and_explicit(&block->flags, ~mask,
	351	memory_order_relaxed);
	352	#else
	353	u8 flags = block->flags;
	354
	355	block->flags &= ~mask;
	356
	357	return flags;
	358	#endif
	359	}
	360
9259d748 PC	361	static inline _Bool can_sign_extend(s32 value, u8 order)
9259d748 PC	362	{
684432ad	363	return ((u32)(value >> (order - 1)) + 1) < 2;
9259d748 PC	364	}
	365
	366	static inline _Bool can_zero_extend(u32 value, u8 order)
	367	{
	368	return (value >> order) == 0;
	369	}
	370
cb72ea13 PC	371	static inline const struct opcode *
	372	get_delay_slot(const struct opcode *list, u16 i)
	373	{
	374	return op_flag_no_ds(list[i].flags) ? &list[i - 1] : &list[i + 1];
	375	}
	376
0e720fb1 PC	377	static inline _Bool lightrec_store_next_pc(void)
	378	{
	379	return NUM_REGS + NUM_TEMPS <= 4;
	380	}
	381
d16005f8	382	#endif /* __LIGHTREC_PRIVATE_H__ */