[pcsx_rearmed.git] / libpcsxcore / lightrec / plugin.c

#include <lightrec.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <assert.h>

#if P_HAVE_MMAP
#include <sys/mman.h>
#endif

#include "../cdrom.h"
#include "../gpu.h"
#include "../gte.h"
#include "../mdec.h"
#include "../psxdma.h"
#include "../psxhw.h"
#include "../psxmem.h"
#include "../r3000a.h"
#include "../psxinterpreter.h"
#include "../psxhle.h"
#include "../new_dynarec/events.h"

#include "../frontend/main.h"

#include "mem.h"
#include "plugin.h"

#if (defined(__arm__) || defined(__aarch64__)) && !defined(ALLOW_LIGHTREC_ON_ARM)
#error "Lightrec should not be used on ARM (please specify DYNAREC=ari64 to make)"
#endif

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

#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

#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

psxRegisters psxRegs;
Rcnt rcnts[4];

void* code_buffer;

static struct lightrec_state *lightrec_state;

static char *name = "retroarch.exe";

static bool use_lightrec_interpreter;
static bool use_pcsx_interpreter;
static bool block_stepping;

enum my_cp2_opcodes {
	OP_CP2_RTPS		= 0x01,
	OP_CP2_NCLIP		= 0x06,
	OP_CP2_OP		= 0x0c,
	OP_CP2_DPCS		= 0x10,
	OP_CP2_INTPL		= 0x11,
	OP_CP2_MVMVA		= 0x12,
	OP_CP2_NCDS		= 0x13,
	OP_CP2_CDP		= 0x14,
	OP_CP2_NCDT		= 0x16,
	OP_CP2_NCCS		= 0x1b,
	OP_CP2_CC		= 0x1c,
	OP_CP2_NCS		= 0x1e,
	OP_CP2_NCT		= 0x20,
	OP_CP2_SQR		= 0x28,
	OP_CP2_DCPL		= 0x29,
	OP_CP2_DPCT		= 0x2a,
	OP_CP2_AVSZ3		= 0x2d,
	OP_CP2_AVSZ4		= 0x2e,
	OP_CP2_RTPT		= 0x30,
	OP_CP2_GPF		= 0x3d,
	OP_CP2_GPL		= 0x3e,
	OP_CP2_NCCT		= 0x3f,
};

static void (*cp2_ops[])(struct psxCP2Regs *) = {
	[OP_CP2_RTPS] = gteRTPS,
	[OP_CP2_RTPS] = gteRTPS,
	[OP_CP2_NCLIP] = gteNCLIP,
	[OP_CP2_OP] = gteOP,
	[OP_CP2_DPCS] = gteDPCS,
	[OP_CP2_INTPL] = gteINTPL,
	[OP_CP2_MVMVA] = gteMVMVA,
	[OP_CP2_NCDS] = gteNCDS,
	[OP_CP2_CDP] = gteCDP,
	[OP_CP2_NCDT] = gteNCDT,
	[OP_CP2_NCCS] = gteNCCS,
	[OP_CP2_CC] = gteCC,
	[OP_CP2_NCS] = gteNCS,
	[OP_CP2_NCT] = gteNCT,
	[OP_CP2_SQR] = gteSQR,
	[OP_CP2_DCPL] = gteDCPL,
	[OP_CP2_DPCT] = gteDPCT,
	[OP_CP2_AVSZ3] = gteAVSZ3,
	[OP_CP2_AVSZ4] = gteAVSZ4,
	[OP_CP2_RTPT] = gteRTPT,
	[OP_CP2_GPF] = gteGPF,
	[OP_CP2_GPL] = gteGPL,
	[OP_CP2_NCCT] = gteNCCT,
};

static char cache_buf[64 * 1024];

static void cop2_op(struct lightrec_state *state, u32 func)
{
	struct lightrec_registers *regs = lightrec_get_registers(state);

	psxRegs.code = func;

	if (unlikely(!cp2_ops[func & 0x3f])) {
		fprintf(stderr, "Invalid CP2 function %u\n", func);
	} else {
		/* This works because regs->cp2c comes right after regs->cp2d,
		 * so it can be cast to a pcsxCP2Regs pointer. */
		cp2_ops[func & 0x3f]((psxCP2Regs *) regs->cp2d);
	}
}

static bool has_interrupt(void)
{
	struct lightrec_registers *regs = lightrec_get_registers(lightrec_state);

	return ((psxHu32(0x1070) & psxHu32(0x1074)) &&
		(regs->cp0[12] & 0x401) == 0x401) ||
		(regs->cp0[12] & regs->cp0[13] & 0x0300);
}

static void lightrec_tansition_to_pcsx(struct lightrec_state *state)
{
	psxRegs.cycle += lightrec_current_cycle_count(state) / 1024;
	lightrec_reset_cycle_count(state, 0);
}

static void lightrec_tansition_from_pcsx(struct lightrec_state *state)
{
	s32 cycles_left = next_interupt - psxRegs.cycle;

	if (block_stepping || cycles_left <= 0 || has_interrupt())
		lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
	else {
		lightrec_set_target_cycle_count(state, cycles_left * 1024);
	}
}

static void hw_write_byte(struct lightrec_state *state,
			  u32 op, void *host, u32 mem, u8 val)
{
	lightrec_tansition_to_pcsx(state);

	psxHwWrite8(mem, val);

	lightrec_tansition_from_pcsx(state);
}

static void hw_write_half(struct lightrec_state *state,
			  u32 op, void *host, u32 mem, u16 val)
{
	lightrec_tansition_to_pcsx(state);

	psxHwWrite16(mem, val);

	lightrec_tansition_from_pcsx(state);
}

static void hw_write_word(struct lightrec_state *state,
			  u32 op, void *host, u32 mem, u32 val)
{
	lightrec_tansition_to_pcsx(state);

	psxHwWrite32(mem, val);

	lightrec_tansition_from_pcsx(state);
}

static u8 hw_read_byte(struct lightrec_state *state, u32 op, void *host, u32 mem)
{
	u8 val;

	lightrec_tansition_to_pcsx(state);

	val = psxHwRead8(mem);

	lightrec_tansition_from_pcsx(state);

	return val;
}

static u16 hw_read_half(struct lightrec_state *state,
			u32 op, void *host, u32 mem)
{
	u16 val;

	lightrec_tansition_to_pcsx(state);

	val = psxHwRead16(mem);

	lightrec_tansition_from_pcsx(state);

	return val;
}

static u32 hw_read_word(struct lightrec_state *state,
			u32 op, void *host, u32 mem)
{
	u32 val;

	lightrec_tansition_to_pcsx(state);

	val = psxHwRead32(mem);

	lightrec_tansition_from_pcsx(state);

	return val;
}

static struct lightrec_mem_map_ops hw_regs_ops = {
	.sb = hw_write_byte,
	.sh = hw_write_half,
	.sw = hw_write_word,
	.lb = hw_read_byte,
	.lh = hw_read_half,
	.lw = hw_read_word,
};

static u32 cache_ctrl;

static void cache_ctrl_write_word(struct lightrec_state *state,
				  u32 op, void *host, u32 mem, u32 val)
{
	cache_ctrl = val;
}

static u32 cache_ctrl_read_word(struct lightrec_state *state,
				u32 op, void *host, u32 mem)
{
	return cache_ctrl;
}

static struct lightrec_mem_map_ops cache_ctrl_ops = {
	.sw = cache_ctrl_write_word,
	.lw = cache_ctrl_read_word,
};

static struct lightrec_mem_map lightrec_map[] = {
	[PSX_MAP_KERNEL_USER_RAM] = {
		/* Kernel and user memory */
		.pc = 0x00000000,
		.length = 0x200000,
	},
	[PSX_MAP_BIOS] = {
		/* BIOS */
		.pc = 0x1fc00000,
		.length = 0x80000,
	},
	[PSX_MAP_SCRATCH_PAD] = {
		/* Scratch pad */
		.pc = 0x1f800000,
		.length = 0x400,
	},
	[PSX_MAP_PARALLEL_PORT] = {
		/* Parallel port */
		.pc = 0x1f000000,
		.length = 0x10000,
	},
	[PSX_MAP_HW_REGISTERS] = {
		/* Hardware registers */
		.pc = 0x1f801000,
		.length = 0x8000,
		.ops = &hw_regs_ops,
	},
	[PSX_MAP_CACHE_CONTROL] = {
		/* Cache control */
		.pc = 0x5ffe0130,
		.length = 4,
		.ops = &cache_ctrl_ops,
	},

	/* Mirrors of the kernel/user memory */
	[PSX_MAP_MIRROR1] = {
		.pc = 0x00200000,
		.length = 0x200000,
		.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	},
	[PSX_MAP_MIRROR2] = {
		.pc = 0x00400000,
		.length = 0x200000,
		.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	},
	[PSX_MAP_MIRROR3] = {
		.pc = 0x00600000,
		.length = 0x200000,
		.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	},

	/* Mirror of the parallel port. Only used by the PS2/PS3 BIOS */
	[PSX_MAP_PPORT_MIRROR] = {
		.pc = 0x1fa00000,
		.length = 0x10000,
		.mirror_of = &lightrec_map[PSX_MAP_PARALLEL_PORT],
	},

	/* Code buffer */
	[PSX_MAP_CODE_BUFFER] = {
		.length = CODE_BUFFER_SIZE,
	},
};

static void lightrec_enable_ram(struct lightrec_state *state, bool enable)
{
	if (enable)
		memcpy(psxM, cache_buf, sizeof(cache_buf));
	else
		memcpy(cache_buf, psxM, sizeof(cache_buf));
}

static bool lightrec_can_hw_direct(u32 kaddr, bool is_write, u8 size)
{
	switch (size) {
	case 8:
		switch (kaddr) {
		case 0x1f801040:
		case 0x1f801050:
		case 0x1f801800:
		case 0x1f801801:
		case 0x1f801802:
		case 0x1f801803:
			return false;
		default:
			return true;
		}
	case 16:
		switch (kaddr) {
		case 0x1f801040:
		case 0x1f801044:
		case 0x1f801048:
		case 0x1f80104a:
		case 0x1f80104e:
		case 0x1f801050:
		case 0x1f801054:
		case 0x1f80105a:
		case 0x1f80105e:
		case 0x1f801100:
		case 0x1f801104:
		case 0x1f801108:
		case 0x1f801110:
		case 0x1f801114:
		case 0x1f801118:
		case 0x1f801120:
		case 0x1f801124:
		case 0x1f801128:
			return false;
		case 0x1f801070:
		case 0x1f801074:
			return !is_write;
		default:
			return kaddr < 0x1f801c00 || kaddr >= 0x1f801e00;
		}
	default:
		switch (kaddr) {
		case 0x1f801040:
		case 0x1f801050:
		case 0x1f801100:
		case 0x1f801104:
		case 0x1f801108:
		case 0x1f801110:
		case 0x1f801114:
		case 0x1f801118:
		case 0x1f801120:
		case 0x1f801124:
		case 0x1f801128:
		case 0x1f801810:
		case 0x1f801814:
		case 0x1f801820:
		case 0x1f801824:
			return false;
		case 0x1f801070:
		case 0x1f801074:
		case 0x1f801088:
		case 0x1f801098:
		case 0x1f8010a8:
		case 0x1f8010b8:
		case 0x1f8010c8:
		case 0x1f8010e8:
		case 0x1f8010f4:
			return !is_write;
		default:
			return !is_write || kaddr < 0x1f801c00 || kaddr >= 0x1f801e00;
		}
	}
}

#if defined(HW_DOL) || defined(HW_RVL)
static void lightrec_code_inv(void *ptr, uint32_t len)
{
	extern void DCFlushRange(void *ptr, u32 len);
	extern void ICInvalidateRange(void *ptr, u32 len);

	DCFlushRange(ptr, len);
	ICInvalidateRange(ptr, len);
}
#elif defined(HW_WUP)
static void lightrec_code_inv(void *ptr, uint32_t len)
{
	wiiu_clear_cache(ptr, (void *)((uintptr_t)ptr + len));
}
#endif

static const struct lightrec_ops lightrec_ops = {
	.cop2_op = cop2_op,
	.enable_ram = lightrec_enable_ram,
	.hw_direct = lightrec_can_hw_direct,
#if defined(HW_DOL) || defined(HW_RVL) || defined(HW_WUP)
	.code_inv = lightrec_code_inv,
#endif
};

static int lightrec_plugin_init(void)
{
	lightrec_map[PSX_MAP_KERNEL_USER_RAM].address = psxM;
	lightrec_map[PSX_MAP_BIOS].address = psxR;
	lightrec_map[PSX_MAP_SCRATCH_PAD].address = psxH;
	lightrec_map[PSX_MAP_HW_REGISTERS].address = psxH + 0x1000;
	lightrec_map[PSX_MAP_PARALLEL_PORT].address = psxP;

	if (!LIGHTREC_CUSTOM_MAP) {
#if P_HAVE_MMAP
		code_buffer = mmap(0, CODE_BUFFER_SIZE,
				   PROT_EXEC | PROT_READ | PROT_WRITE,
				   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
		if (code_buffer == MAP_FAILED)
			return -ENOMEM;
#else
		code_buffer = malloc(CODE_BUFFER_SIZE);
		if (!code_buffer)
			return -ENOMEM;
#endif
	}

	if (LIGHTREC_CUSTOM_MAP) {
		lightrec_map[PSX_MAP_MIRROR1].address = psxM + 0x200000;
		lightrec_map[PSX_MAP_MIRROR2].address = psxM + 0x400000;
		lightrec_map[PSX_MAP_MIRROR3].address = psxM + 0x600000;
	}

	lightrec_map[PSX_MAP_CODE_BUFFER].address = code_buffer;

	use_lightrec_interpreter = !!getenv("LIGHTREC_INTERPRETER");

	lightrec_state = lightrec_init(name,
			lightrec_map, ARRAY_SIZE(lightrec_map),
			&lightrec_ops);

	// fprintf(stderr, "M=0x%lx, P=0x%lx, R=0x%lx, H=0x%lx\n",
	// 		(uintptr_t) psxM,
	// 		(uintptr_t) psxP,
	// 		(uintptr_t) psxR,
	// 		(uintptr_t) psxH);

#ifndef _WIN32
	signal(SIGPIPE, exit);
#endif
	return 0;
}

static void lightrec_plugin_sync_regs_to_pcsx(bool need_cp2);
static void lightrec_plugin_sync_regs_from_pcsx(bool need_cp2);

static void lightrec_plugin_execute_internal(bool block_only)
{
	struct lightrec_registers *regs;
	u32 flags, cycles_pcsx;

	regs = lightrec_get_registers(lightrec_state);
	gen_interupt((psxCP0Regs *)regs->cp0);
	cycles_pcsx = next_interupt - psxRegs.cycle;
	assert((s32)cycles_pcsx > 0);

	// step during early boot so that 0x80030000 fastboot hack works
	block_stepping = block_only;
	if (block_only)
		cycles_pcsx = 0;

	if (use_pcsx_interpreter) {
		intExecuteBlock(0);
	} else {
		u32 cycles_lightrec = cycles_pcsx * 1024;
		if (unlikely(use_lightrec_interpreter)) {
			psxRegs.pc = lightrec_run_interpreter(lightrec_state,
							      psxRegs.pc,
							      cycles_lightrec);
		} else {
			psxRegs.pc = lightrec_execute(lightrec_state,
						      psxRegs.pc, cycles_lightrec);
		}

		lightrec_tansition_to_pcsx(lightrec_state);

		flags = lightrec_exit_flags(lightrec_state);

		if (flags & LIGHTREC_EXIT_SEGFAULT) {
			fprintf(stderr, "Exiting at cycle 0x%08x\n",
				psxRegs.cycle);
			exit(1);
		}

		if (flags & LIGHTREC_EXIT_SYSCALL)
			psxException(R3000E_Syscall << 2, 0, (psxCP0Regs *)regs->cp0);
		else if (flags & LIGHTREC_EXIT_UNKNOWN_OP) {
			u32 op = intFakeFetch(psxRegs.pc);
			u32 hlec = op & 0x03ffffff;
			if ((op >> 26) == 0x3b && hlec < ARRAY_SIZE(psxHLEt) && Config.HLE) {
				lightrec_plugin_sync_regs_to_pcsx(0);
				psxHLEt[hlec]();
				lightrec_plugin_sync_regs_from_pcsx(0);
			}
			else
				psxException(R3000E_RI << 2, 0, (psxCP0Regs *)regs->cp0);
		}
	}

	if ((regs->cp0[13] & regs->cp0[12] & 0x300) && (regs->cp0[12] & 0x1)) {
		/* Handle software interrupts */
		regs->cp0[13] &= ~0x7c;
		psxException(regs->cp0[13], 0, (psxCP0Regs *)regs->cp0);
	}
}

static void lightrec_plugin_execute(void)
{
	extern int stop;

	while (!stop)
		lightrec_plugin_execute_internal(false);
}

static void lightrec_plugin_execute_block(enum blockExecCaller caller)
{
	lightrec_plugin_execute_internal(true);
}

static void lightrec_plugin_clear(u32 addr, u32 size)
{
	if (addr == 0 && size == UINT32_MAX)
		lightrec_invalidate_all(lightrec_state);
	else
		/* size * 4: PCSX uses DMA units */
		lightrec_invalidate(lightrec_state, addr, size * 4);
}

static void lightrec_plugin_notify(enum R3000Anote note, void *data)
{
	switch (note)
	{
	case R3000ACPU_NOTIFY_CACHE_ISOLATED:
	case R3000ACPU_NOTIFY_CACHE_UNISOLATED:
		/* not used, lightrec calls lightrec_enable_ram() instead */
		break;
	case R3000ACPU_NOTIFY_BEFORE_SAVE:
		/* non-null 'data' means this is HLE related sync */
		lightrec_plugin_sync_regs_to_pcsx(data == NULL);
		break;
	case R3000ACPU_NOTIFY_AFTER_LOAD:
		lightrec_plugin_sync_regs_from_pcsx(data == NULL);
		if (data == NULL)
			lightrec_invalidate_all(lightrec_state);
		break;
	}
}

static void lightrec_plugin_apply_config()
{
	u32 cycle_mult = Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT
		? Config.cycle_multiplier_override : Config.cycle_multiplier;
	assert(cycle_mult);

	lightrec_set_cycles_per_opcode(lightrec_state, cycle_mult * 1024 / 100);
}

static void lightrec_plugin_shutdown(void)
{
	lightrec_destroy(lightrec_state);

	if (!LIGHTREC_CUSTOM_MAP) {
#if P_HAVE_MMAP
		munmap(code_buffer, CODE_BUFFER_SIZE);
#else
		free(code_buffer);
#endif
	}
}

static void lightrec_plugin_reset(void)
{
	struct lightrec_registers *regs;

	regs = lightrec_get_registers(lightrec_state);

	/* Invalidate all blocks */
	lightrec_invalidate_all(lightrec_state);

	/* Reset registers */
	memset(regs, 0, sizeof(*regs));

	regs->cp0[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1
	regs->cp0[15] = 0x00000002; // PRevID = Revision ID, same as R3000A
}

static void lightrec_plugin_sync_regs_from_pcsx(bool need_cp2)
{
	struct lightrec_registers *regs;

	regs = lightrec_get_registers(lightrec_state);
	memcpy(regs->gpr, &psxRegs.GPR, sizeof(regs->gpr));
	memcpy(regs->cp0, &psxRegs.CP0, sizeof(regs->cp0));
	if (need_cp2)
		memcpy(regs->cp2d, &psxRegs.CP2, sizeof(regs->cp2d) + sizeof(regs->cp2c));
}

static void lightrec_plugin_sync_regs_to_pcsx(bool need_cp2)
{
	struct lightrec_registers *regs;

	regs = lightrec_get_registers(lightrec_state);
	memcpy(&psxRegs.GPR, regs->gpr, sizeof(regs->gpr));
	memcpy(&psxRegs.CP0, regs->cp0, sizeof(regs->cp0));
	if (need_cp2)
		memcpy(&psxRegs.CP2, regs->cp2d, sizeof(regs->cp2d) + sizeof(regs->cp2c));
}

R3000Acpu psxRec =
{
	lightrec_plugin_init,
	lightrec_plugin_reset,
	lightrec_plugin_execute,
	lightrec_plugin_execute_block,
	lightrec_plugin_clear,
	lightrec_plugin_notify,
	lightrec_plugin_apply_config,
	lightrec_plugin_shutdown,
};
Commit	Line	Data
	1	#include <lightrec.h>
	2	#include <errno.h>
	3	#include <stdbool.h>
	4	#include <stdio.h>
	5	#include <unistd.h>
	6	#include <signal.h>
	7	#include <assert.h>
	8
	9	#if P_HAVE_MMAP
	10	#include <sys/mman.h>
	11	#endif
	12
	13	#include "../cdrom.h"
	14	#include "../gpu.h"
	15	#include "../gte.h"
	16	#include "../mdec.h"
	17	#include "../psxdma.h"
	18	#include "../psxhw.h"
	19	#include "../psxmem.h"
	20	#include "../r3000a.h"
	21	#include "../psxinterpreter.h"
	22	#include "../psxhle.h"
	23	#include "../new_dynarec/events.h"
	24
	25	#include "../frontend/main.h"
	26
	27	#include "mem.h"
	28	#include "plugin.h"
	29
	30	#if (defined(__arm__) \|\| defined(__aarch64__)) && !defined(ALLOW_LIGHTREC_ON_ARM)
	31	#error "Lightrec should not be used on ARM (please specify DYNAREC=ari64 to make)"
	32	#endif
	33
	34	#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
	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
	48	#ifdef __GNUC__
	49	# define likely(x) __builtin_expect(!!(x),1)
	50	# define unlikely(x) __builtin_expect(!!(x),0)
	51	#else
	52	# define likely(x) (x)
	53	# define unlikely(x) (x)
	54	#endif
	55
	56	psxRegisters psxRegs;
	57	Rcnt rcnts[4];
	58
	59	void* code_buffer;
	60
	61	static struct lightrec_state *lightrec_state;
	62
	63	static char *name = "retroarch.exe";
	64
	65	static bool use_lightrec_interpreter;
	66	static bool use_pcsx_interpreter;
	67	static bool block_stepping;
	68
	69	enum my_cp2_opcodes {
	70	OP_CP2_RTPS = 0x01,
	71	OP_CP2_NCLIP = 0x06,
	72	OP_CP2_OP = 0x0c,
	73	OP_CP2_DPCS = 0x10,
	74	OP_CP2_INTPL = 0x11,
	75	OP_CP2_MVMVA = 0x12,
	76	OP_CP2_NCDS = 0x13,
	77	OP_CP2_CDP = 0x14,
	78	OP_CP2_NCDT = 0x16,
	79	OP_CP2_NCCS = 0x1b,
	80	OP_CP2_CC = 0x1c,
	81	OP_CP2_NCS = 0x1e,
	82	OP_CP2_NCT = 0x20,
	83	OP_CP2_SQR = 0x28,
	84	OP_CP2_DCPL = 0x29,
	85	OP_CP2_DPCT = 0x2a,
	86	OP_CP2_AVSZ3 = 0x2d,
	87	OP_CP2_AVSZ4 = 0x2e,
	88	OP_CP2_RTPT = 0x30,
	89	OP_CP2_GPF = 0x3d,
	90	OP_CP2_GPL = 0x3e,
	91	OP_CP2_NCCT = 0x3f,
	92	};
	93
	94	static void (cp2_ops[])(struct psxCP2Regs ) = {
	95	[OP_CP2_RTPS] = gteRTPS,
	96	[OP_CP2_RTPS] = gteRTPS,
	97	[OP_CP2_NCLIP] = gteNCLIP,
	98	[OP_CP2_OP] = gteOP,
	99	[OP_CP2_DPCS] = gteDPCS,
	100	[OP_CP2_INTPL] = gteINTPL,
	101	[OP_CP2_MVMVA] = gteMVMVA,
	102	[OP_CP2_NCDS] = gteNCDS,
	103	[OP_CP2_CDP] = gteCDP,
	104	[OP_CP2_NCDT] = gteNCDT,
	105	[OP_CP2_NCCS] = gteNCCS,
	106	[OP_CP2_CC] = gteCC,
	107	[OP_CP2_NCS] = gteNCS,
	108	[OP_CP2_NCT] = gteNCT,
	109	[OP_CP2_SQR] = gteSQR,
	110	[OP_CP2_DCPL] = gteDCPL,
	111	[OP_CP2_DPCT] = gteDPCT,
	112	[OP_CP2_AVSZ3] = gteAVSZ3,
	113	[OP_CP2_AVSZ4] = gteAVSZ4,
	114	[OP_CP2_RTPT] = gteRTPT,
	115	[OP_CP2_GPF] = gteGPF,
	116	[OP_CP2_GPL] = gteGPL,
	117	[OP_CP2_NCCT] = gteNCCT,
	118	};
	119
	120	static char cache_buf[64 * 1024];
	121
	122	static void cop2_op(struct lightrec_state *state, u32 func)
	123	{
	124	struct lightrec_registers *regs = lightrec_get_registers(state);
	125
	126	psxRegs.code = func;
	127
	128	if (unlikely(!cp2_ops[func & 0x3f])) {
	129	fprintf(stderr, "Invalid CP2 function %u\n", func);
	130	} else {
	131	/* This works because regs->cp2c comes right after regs->cp2d,
	132	* so it can be cast to a pcsxCP2Regs pointer. */
	133	cp2_ops[func & 0x3f]((psxCP2Regs *) regs->cp2d);
	134	}
	135	}
	136
	137	static bool has_interrupt(void)
	138	{
	139	struct lightrec_registers *regs = lightrec_get_registers(lightrec_state);
	140
	141	return ((psxHu32(0x1070) & psxHu32(0x1074)) &&
	142	(regs->cp0[12] & 0x401) == 0x401) \|\|
	143	(regs->cp0[12] & regs->cp0[13] & 0x0300);
	144	}
	145
	146	static void lightrec_tansition_to_pcsx(struct lightrec_state *state)
	147	{
	148	psxRegs.cycle += lightrec_current_cycle_count(state) / 1024;
	149	lightrec_reset_cycle_count(state, 0);
	150	}
	151
	152	static void lightrec_tansition_from_pcsx(struct lightrec_state *state)
	153	{
	154	s32 cycles_left = next_interupt - psxRegs.cycle;
	155
	156	if (block_stepping \|\| cycles_left <= 0 \|\| has_interrupt())
	157	lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
	158	else {
	159	lightrec_set_target_cycle_count(state, cycles_left * 1024);
	160	}
	161	}
	162
	163	static void hw_write_byte(struct lightrec_state *state,
	164	u32 op, void *host, u32 mem, u8 val)
	165	{
	166	lightrec_tansition_to_pcsx(state);
	167
	168	psxHwWrite8(mem, val);
	169
	170	lightrec_tansition_from_pcsx(state);
	171	}
	172
	173	static void hw_write_half(struct lightrec_state *state,
	174	u32 op, void *host, u32 mem, u16 val)
	175	{
	176	lightrec_tansition_to_pcsx(state);
	177
	178	psxHwWrite16(mem, val);
	179
	180	lightrec_tansition_from_pcsx(state);
	181	}
	182
	183	static void hw_write_word(struct lightrec_state *state,
	184	u32 op, void *host, u32 mem, u32 val)
	185	{
	186	lightrec_tansition_to_pcsx(state);
	187
	188	psxHwWrite32(mem, val);
	189
	190	lightrec_tansition_from_pcsx(state);
	191	}
	192
	193	static u8 hw_read_byte(struct lightrec_state state, u32 op, void host, u32 mem)
	194	{
	195	u8 val;
	196
	197	lightrec_tansition_to_pcsx(state);
	198
	199	val = psxHwRead8(mem);
	200
	201	lightrec_tansition_from_pcsx(state);
	202
	203	return val;
	204	}
	205
	206	static u16 hw_read_half(struct lightrec_state *state,
	207	u32 op, void *host, u32 mem)
	208	{
	209	u16 val;
	210
	211	lightrec_tansition_to_pcsx(state);
	212
	213	val = psxHwRead16(mem);
	214
	215	lightrec_tansition_from_pcsx(state);
	216
	217	return val;
	218	}
	219
	220	static u32 hw_read_word(struct lightrec_state *state,
	221	u32 op, void *host, u32 mem)
	222	{
	223	u32 val;
	224
	225	lightrec_tansition_to_pcsx(state);
	226
	227	val = psxHwRead32(mem);
	228
	229	lightrec_tansition_from_pcsx(state);
	230
	231	return val;
	232	}
	233
	234	static struct lightrec_mem_map_ops hw_regs_ops = {
	235	.sb = hw_write_byte,
	236	.sh = hw_write_half,
	237	.sw = hw_write_word,
	238	.lb = hw_read_byte,
	239	.lh = hw_read_half,
	240	.lw = hw_read_word,
	241	};
	242
	243	static u32 cache_ctrl;
	244
	245	static void cache_ctrl_write_word(struct lightrec_state *state,
	246	u32 op, void *host, u32 mem, u32 val)
	247	{
	248	cache_ctrl = val;
	249	}
	250
	251	static u32 cache_ctrl_read_word(struct lightrec_state *state,
	252	u32 op, void *host, u32 mem)
	253	{
	254	return cache_ctrl;
	255	}
	256
	257	static struct lightrec_mem_map_ops cache_ctrl_ops = {
	258	.sw = cache_ctrl_write_word,
	259	.lw = cache_ctrl_read_word,
	260	};
	261
	262	static struct lightrec_mem_map lightrec_map[] = {
	263	[PSX_MAP_KERNEL_USER_RAM] = {
	264	/* Kernel and user memory */
	265	.pc = 0x00000000,
	266	.length = 0x200000,
	267	},
	268	[PSX_MAP_BIOS] = {
	269	/* BIOS */
	270	.pc = 0x1fc00000,
	271	.length = 0x80000,
	272	},
	273	[PSX_MAP_SCRATCH_PAD] = {
	274	/* Scratch pad */
	275	.pc = 0x1f800000,
	276	.length = 0x400,
	277	},
	278	[PSX_MAP_PARALLEL_PORT] = {
	279	/* Parallel port */
	280	.pc = 0x1f000000,
	281	.length = 0x10000,
	282	},
	283	[PSX_MAP_HW_REGISTERS] = {
	284	/* Hardware registers */
	285	.pc = 0x1f801000,
	286	.length = 0x8000,
	287	.ops = &hw_regs_ops,
	288	},
	289	[PSX_MAP_CACHE_CONTROL] = {
	290	/* Cache control */
	291	.pc = 0x5ffe0130,
	292	.length = 4,
	293	.ops = &cache_ctrl_ops,
	294	},
	295
	296	/* Mirrors of the kernel/user memory */
	297	[PSX_MAP_MIRROR1] = {
	298	.pc = 0x00200000,
	299	.length = 0x200000,
	300	.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	301	},
	302	[PSX_MAP_MIRROR2] = {
	303	.pc = 0x00400000,
	304	.length = 0x200000,
	305	.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	306	},
	307	[PSX_MAP_MIRROR3] = {
	308	.pc = 0x00600000,
	309	.length = 0x200000,
	310	.mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM],
	311	},
	312
	313	/* Mirror of the parallel port. Only used by the PS2/PS3 BIOS */
	314	[PSX_MAP_PPORT_MIRROR] = {
	315	.pc = 0x1fa00000,
	316	.length = 0x10000,
	317	.mirror_of = &lightrec_map[PSX_MAP_PARALLEL_PORT],
	318	},
	319
	320	/* Code buffer */
	321	[PSX_MAP_CODE_BUFFER] = {
	322	.length = CODE_BUFFER_SIZE,
	323	},
	324	};
	325
	326	static void lightrec_enable_ram(struct lightrec_state *state, bool enable)
	327	{
	328	if (enable)
	329	memcpy(psxM, cache_buf, sizeof(cache_buf));
	330	else
	331	memcpy(cache_buf, psxM, sizeof(cache_buf));
	332	}
	333
	334	static bool lightrec_can_hw_direct(u32 kaddr, bool is_write, u8 size)
	335	{
	336	switch (size) {
	337	case 8:
	338	switch (kaddr) {
	339	case 0x1f801040:
	340	case 0x1f801050:
	341	case 0x1f801800:
	342	case 0x1f801801:
	343	case 0x1f801802:
	344	case 0x1f801803:
	345	return false;
	346	default:
	347	return true;
	348	}
	349	case 16:
	350	switch (kaddr) {
	351	case 0x1f801040:
	352	case 0x1f801044:
	353	case 0x1f801048:
	354	case 0x1f80104a:
	355	case 0x1f80104e:
	356	case 0x1f801050:
	357	case 0x1f801054:
	358	case 0x1f80105a:
	359	case 0x1f80105e:
	360	case 0x1f801100:
	361	case 0x1f801104:
	362	case 0x1f801108:
	363	case 0x1f801110:
	364	case 0x1f801114:
	365	case 0x1f801118:
	366	case 0x1f801120:
	367	case 0x1f801124:
	368	case 0x1f801128:
	369	return false;
	370	case 0x1f801070:
	371	case 0x1f801074:
	372	return !is_write;
	373	default:
	374	return kaddr < 0x1f801c00 \|\| kaddr >= 0x1f801e00;
	375	}
	376	default:
	377	switch (kaddr) {
	378	case 0x1f801040:
	379	case 0x1f801050:
	380	case 0x1f801100:
	381	case 0x1f801104:
	382	case 0x1f801108:
	383	case 0x1f801110:
	384	case 0x1f801114:
	385	case 0x1f801118:
	386	case 0x1f801120:
	387	case 0x1f801124:
	388	case 0x1f801128:
	389	case 0x1f801810:
	390	case 0x1f801814:
	391	case 0x1f801820:
	392	case 0x1f801824:
	393	return false;
	394	case 0x1f801070:
	395	case 0x1f801074:
	396	case 0x1f801088:
	397	case 0x1f801098:
	398	case 0x1f8010a8:
	399	case 0x1f8010b8:
	400	case 0x1f8010c8:
	401	case 0x1f8010e8:
	402	case 0x1f8010f4:
	403	return !is_write;
	404	default:
	405	return !is_write \|\| kaddr < 0x1f801c00 \|\| kaddr >= 0x1f801e00;
	406	}
	407	}
	408	}
	409
	410	#if defined(HW_DOL) \|\| defined(HW_RVL)
	411	static void lightrec_code_inv(void *ptr, uint32_t len)
	412	{
	413	extern void DCFlushRange(void *ptr, u32 len);
	414	extern void ICInvalidateRange(void *ptr, u32 len);
	415
	416	DCFlushRange(ptr, len);
	417	ICInvalidateRange(ptr, len);
	418	}
	419	#elif defined(HW_WUP)
	420	static void lightrec_code_inv(void *ptr, uint32_t len)
	421	{
	422	wiiu_clear_cache(ptr, (void *)((uintptr_t)ptr + len));
	423	}
	424	#endif
	425
	426	static const struct lightrec_ops lightrec_ops = {
	427	.cop2_op = cop2_op,
	428	.enable_ram = lightrec_enable_ram,
	429	.hw_direct = lightrec_can_hw_direct,
	430	#if defined(HW_DOL) \|\| defined(HW_RVL) \|\| defined(HW_WUP)
	431	.code_inv = lightrec_code_inv,
	432	#endif
	433	};
	434
	435	static int lightrec_plugin_init(void)
	436	{
	437	lightrec_map[PSX_MAP_KERNEL_USER_RAM].address = psxM;
	438	lightrec_map[PSX_MAP_BIOS].address = psxR;
	439	lightrec_map[PSX_MAP_SCRATCH_PAD].address = psxH;
	440	lightrec_map[PSX_MAP_HW_REGISTERS].address = psxH + 0x1000;
	441	lightrec_map[PSX_MAP_PARALLEL_PORT].address = psxP;
	442
	443	if (!LIGHTREC_CUSTOM_MAP) {
	444	#if P_HAVE_MMAP
	445	code_buffer = mmap(0, CODE_BUFFER_SIZE,
	446	PROT_EXEC \| PROT_READ \| PROT_WRITE,
	447	MAP_PRIVATE \| MAP_ANONYMOUS, -1, 0);
	448	if (code_buffer == MAP_FAILED)
	449	return -ENOMEM;
	450	#else
	451	code_buffer = malloc(CODE_BUFFER_SIZE);
	452	if (!code_buffer)
	453	return -ENOMEM;
	454	#endif
	455	}
	456
	457	if (LIGHTREC_CUSTOM_MAP) {
	458	lightrec_map[PSX_MAP_MIRROR1].address = psxM + 0x200000;
	459	lightrec_map[PSX_MAP_MIRROR2].address = psxM + 0x400000;
	460	lightrec_map[PSX_MAP_MIRROR3].address = psxM + 0x600000;
	461	}
	462
	463	lightrec_map[PSX_MAP_CODE_BUFFER].address = code_buffer;
	464
	465	use_lightrec_interpreter = !!getenv("LIGHTREC_INTERPRETER");
	466
	467	lightrec_state = lightrec_init(name,
	468	lightrec_map, ARRAY_SIZE(lightrec_map),
	469	&lightrec_ops);
	470
	471	// fprintf(stderr, "M=0x%lx, P=0x%lx, R=0x%lx, H=0x%lx\n",
	472	// (uintptr_t) psxM,
	473	// (uintptr_t) psxP,
	474	// (uintptr_t) psxR,
	475	// (uintptr_t) psxH);
	476
	477	#ifndef _WIN32
	478	signal(SIGPIPE, exit);
	479	#endif
	480	return 0;
	481	}
	482
	483	static void lightrec_plugin_sync_regs_to_pcsx(bool need_cp2);
	484	static void lightrec_plugin_sync_regs_from_pcsx(bool need_cp2);
	485
	486	static void lightrec_plugin_execute_internal(bool block_only)
	487	{
	488	struct lightrec_registers *regs;
	489	u32 flags, cycles_pcsx;
	490
	491	regs = lightrec_get_registers(lightrec_state);
	492	gen_interupt((psxCP0Regs *)regs->cp0);
	493	cycles_pcsx = next_interupt - psxRegs.cycle;
	494	assert((s32)cycles_pcsx > 0);
	495
	496	// step during early boot so that 0x80030000 fastboot hack works
	497	block_stepping = block_only;
	498	if (block_only)
	499	cycles_pcsx = 0;
	500
	501	if (use_pcsx_interpreter) {
	502	intExecuteBlock(0);
	503	} else {
	504	u32 cycles_lightrec = cycles_pcsx * 1024;
	505	if (unlikely(use_lightrec_interpreter)) {
	506	psxRegs.pc = lightrec_run_interpreter(lightrec_state,
	507	psxRegs.pc,
	508	cycles_lightrec);
	509	} else {
	510	psxRegs.pc = lightrec_execute(lightrec_state,
	511	psxRegs.pc, cycles_lightrec);
	512	}
	513
	514	lightrec_tansition_to_pcsx(lightrec_state);
	515
	516	flags = lightrec_exit_flags(lightrec_state);
	517
	518	if (flags & LIGHTREC_EXIT_SEGFAULT) {
	519	fprintf(stderr, "Exiting at cycle 0x%08x\n",
	520	psxRegs.cycle);
	521	exit(1);
	522	}
	523
	524	if (flags & LIGHTREC_EXIT_SYSCALL)
	525	psxException(R3000E_Syscall << 2, 0, (psxCP0Regs *)regs->cp0);
	526	else if (flags & LIGHTREC_EXIT_UNKNOWN_OP) {
	527	u32 op = intFakeFetch(psxRegs.pc);
	528	u32 hlec = op & 0x03ffffff;
	529	if ((op >> 26) == 0x3b && hlec < ARRAY_SIZE(psxHLEt) && Config.HLE) {
	530	lightrec_plugin_sync_regs_to_pcsx(0);
	531	psxHLEt[hlec]();
	532	lightrec_plugin_sync_regs_from_pcsx(0);
	533	}
	534	else
	535	psxException(R3000E_RI << 2, 0, (psxCP0Regs *)regs->cp0);
	536	}
	537	}
	538
	539	if ((regs->cp0[13] & regs->cp0[12] & 0x300) && (regs->cp0[12] & 0x1)) {
	540	/* Handle software interrupts */
	541	regs->cp0[13] &= ~0x7c;
	542	psxException(regs->cp0[13], 0, (psxCP0Regs *)regs->cp0);
	543	}
	544	}
	545
	546	static void lightrec_plugin_execute(void)
	547	{
	548	extern int stop;
	549
	550	while (!stop)
	551	lightrec_plugin_execute_internal(false);
	552	}
	553
	554	static void lightrec_plugin_execute_block(enum blockExecCaller caller)
	555	{
	556	lightrec_plugin_execute_internal(true);
	557	}
	558
	559	static void lightrec_plugin_clear(u32 addr, u32 size)
	560	{
	561	if (addr == 0 && size == UINT32_MAX)
	562	lightrec_invalidate_all(lightrec_state);
	563	else
	564	/* size * 4: PCSX uses DMA units */
	565	lightrec_invalidate(lightrec_state, addr, size * 4);
	566	}
	567
	568	static void lightrec_plugin_notify(enum R3000Anote note, void *data)
	569	{
	570	switch (note)
	571	{
	572	case R3000ACPU_NOTIFY_CACHE_ISOLATED:
	573	case R3000ACPU_NOTIFY_CACHE_UNISOLATED:
	574	/* not used, lightrec calls lightrec_enable_ram() instead */
	575	break;
	576	case R3000ACPU_NOTIFY_BEFORE_SAVE:
	577	/* non-null 'data' means this is HLE related sync */
	578	lightrec_plugin_sync_regs_to_pcsx(data == NULL);
	579	break;
	580	case R3000ACPU_NOTIFY_AFTER_LOAD:
	581	lightrec_plugin_sync_regs_from_pcsx(data == NULL);
	582	if (data == NULL)
	583	lightrec_invalidate_all(lightrec_state);
	584	break;
	585	}
	586	}
	587
	588	static void lightrec_plugin_apply_config()
	589	{
	590	u32 cycle_mult = Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT
	591	? Config.cycle_multiplier_override : Config.cycle_multiplier;
	592	assert(cycle_mult);
	593
	594	lightrec_set_cycles_per_opcode(lightrec_state, cycle_mult * 1024 / 100);
	595	}
	596
	597	static void lightrec_plugin_shutdown(void)
	598	{
	599	lightrec_destroy(lightrec_state);
	600
	601	if (!LIGHTREC_CUSTOM_MAP) {
	602	#if P_HAVE_MMAP
	603	munmap(code_buffer, CODE_BUFFER_SIZE);
	604	#else
	605	free(code_buffer);
	606	#endif
	607	}
	608	}
	609
	610	static void lightrec_plugin_reset(void)
	611	{
	612	struct lightrec_registers *regs;
	613
	614	regs = lightrec_get_registers(lightrec_state);
	615
	616	/* Invalidate all blocks */
	617	lightrec_invalidate_all(lightrec_state);
	618
	619	/* Reset registers */
	620	memset(regs, 0, sizeof(*regs));
	621
	622	regs->cp0[12] = 0x10900000; // COP0 enabled \| BEV = 1 \| TS = 1
	623	regs->cp0[15] = 0x00000002; // PRevID = Revision ID, same as R3000A
	624	}
	625
	626	static void lightrec_plugin_sync_regs_from_pcsx(bool need_cp2)
	627	{
	628	struct lightrec_registers *regs;
	629
	630	regs = lightrec_get_registers(lightrec_state);
	631	memcpy(regs->gpr, &psxRegs.GPR, sizeof(regs->gpr));
	632	memcpy(regs->cp0, &psxRegs.CP0, sizeof(regs->cp0));
	633	if (need_cp2)
	634	memcpy(regs->cp2d, &psxRegs.CP2, sizeof(regs->cp2d) + sizeof(regs->cp2c));
	635	}
	636
	637	static void lightrec_plugin_sync_regs_to_pcsx(bool need_cp2)
	638	{
	639	struct lightrec_registers *regs;
	640
	641	regs = lightrec_get_registers(lightrec_state);
	642	memcpy(&psxRegs.GPR, regs->gpr, sizeof(regs->gpr));
	643	memcpy(&psxRegs.CP0, regs->cp0, sizeof(regs->cp0));
	644	if (need_cp2)
	645	memcpy(&psxRegs.CP2, regs->cp2d, sizeof(regs->cp2d) + sizeof(regs->cp2c));
	646	}
	647
	648	R3000Acpu psxRec =
	649	{
	650	lightrec_plugin_init,
	651	lightrec_plugin_reset,
	652	lightrec_plugin_execute,
	653	lightrec_plugin_execute_block,
	654	lightrec_plugin_clear,
	655	lightrec_plugin_notify,
	656	lightrec_plugin_apply_config,
	657	lightrec_plugin_shutdown,
	658	};