[pcsx_rearmed.git] / libpcsxcore / new_dynarec / emu_if.c

// pending_exception?
// swi 0 in do_unalignedwritestub?
#include <stdio.h>

#include "emu_if.h"
#include "../psxmem.h"
#include "../psxhle.h"

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

//#define memprintf printf
#define memprintf(...)
//#define evprintf printf
#define evprintf(...)

char invalid_code[0x100000];
u32 event_cycles[6];

void MTC0_()
{
	extern void psxMTC0();

	memprintf("ari64 MTC0 %08x\n", psxRegs.code);
	psxMTC0();
	pending_exception = 1; /* FIXME? */
}

static void schedule_timeslice(void)
{
	u32 i, c = psxRegs.cycle;
	s32 min, dif;

	min = psxNextsCounter + psxNextCounter - c;
	for (i = 0; i < ARRAY_SIZE(event_cycles); i++) {
		dif = event_cycles[i] - c;
		//evprintf("  ev %d\n", dif);
		if (0 < dif && dif < min)
			min = dif;
	}
	next_interupt = c + min;

#if 0
	static u32 cnt, last_cycle;
	static u64 sum;
	if (last_cycle) {
		cnt++;
		sum += psxRegs.cycle - last_cycle;
		if ((cnt & 0xff) == 0)
			printf("%u\n", (u32)(sum / cnt));
	}
	last_cycle = psxRegs.cycle;
#endif
}

void gen_interupt()
{
	//evprintf("ari64_gen_interupt\n");
	evprintf("  +ge %08x, %u->%u\n", psxRegs.pc, psxRegs.cycle, next_interupt);
#ifdef DRC_DBG
	psxRegs.cycle += 2;
#endif

	psxBranchTest();

	schedule_timeslice();

	evprintf("  -ge %08x, %u->%u (%d)\n", psxRegs.pc, psxRegs.cycle,
		next_interupt, next_interupt - psxRegs.cycle);

	pending_exception = 1; /* FIXME */
}

void check_interupt()
{
	printf("ari64_check_interupt\n");
}

void read_nomem_new()
{
	printf("ari64_read_nomem_new\n");
}

static void read_mem8()
{
	memprintf("ari64_read_mem8  %08x, PC~=%08x\n", address, psxRegs.pc);
	readmem_word = psxMemRead8(address) & 0xff;
}

static void read_mem16()
{
	memprintf("ari64_read_mem16 %08x, PC~=%08x\n", address, psxRegs.pc);
	readmem_word = psxMemRead16(address) & 0xffff;
}

static void read_mem32()
{
	memprintf("ari64_read_mem32 %08x, PC~=%08x\n", address, psxRegs.pc);
	readmem_word = psxMemRead32(address);
}

static void write_mem8()
{
	memprintf("ari64_write_mem8  %08x,       %02x, PC~=%08x\n", address, byte, psxRegs.pc);
	psxMemWrite8(address, byte);
}

static void write_mem16()
{
	memprintf("ari64_write_mem16 %08x,     %04x, PC~=%08x\n", address, hword, psxRegs.pc);
	psxMemWrite16(address, hword);
}

static void write_mem32()
{
	memprintf("ari64_write_mem32 %08x, %08x, PC~=%08x\n", address, word, psxRegs.pc);
	psxMemWrite32(address, word);
}

void (*readmem[0x10000])();
void (*readmemb[0x10000])();
void (*readmemh[0x10000])();
void (*writemem[0x10000])();
void (*writememb[0x10000])();
void (*writememh[0x10000])();

void *gte_handlers[64];

/* from gte.txt.. not sure if this is any good. */
const char gte_cycletab[64] = {
	/*   1   2   3   4   5   6   7   8   9   a   b   c   d   e   f */
	 0, 15,  0,  0,  0,  0,  8,  0,  0,  0,  0,  0,  6,  0,  0,  0,
	 8,  8,  8, 19, 13,  0, 44,  0,  0,  0,  0, 17, 11,  0, 14,  0,
	30,  0,  0,  0,  0,  0,  0,  0,  5,  8, 17,  0,  0,  5,  6,  0,
	23,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  5,  5, 39,
};

static int ari64_init()
{
	extern void (*psxCP2[64])();
	extern void psxNULL();
	size_t i;

	new_dynarec_init();

	for (i = 0; i < ARRAY_SIZE(readmem); i++) {
		readmemb[i] = read_mem8;
		readmemh[i] = read_mem16;
		readmem[i] = read_mem32;
		writememb[i] = write_mem8;
		writememh[i] = write_mem16;
		writemem[i] = write_mem32;
	}

	for (i = 0; i < ARRAY_SIZE(gte_handlers); i++)
		if (psxCP2[i] != psxNULL)
			gte_handlers[i] = psxCP2[i];

	return 0;
}

static void ari64_reset()
{
	printf("ari64_reset\n");
	invalidate_all_pages();
	pending_exception = 1;
}

static void ari64_execute()
{
	schedule_timeslice();

	evprintf("ari64_execute %08x, %u->%u (%d)\n", psxRegs.pc,
		psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle);

	new_dyna_start();

	evprintf("ari64_execute end %08x, %u->%u (%d)\n", psxRegs.pc,
		psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle);
}

static void ari64_clear(u32 addr, u32 size)
{
	u32 start, end;

	evprintf("ari64_clear %08x %04x\n", addr, size);

	/* check for RAM mirrors */
	if ((start & ~0xe0000000) < 0x200000) {
		start &= ~0xe0000000;
		start |=  0x80000000;
	}

	start = addr >> 12;
	end = (addr + size) >> 12;

	for (; start <= end; start++)
		if (!invalid_code[start])
			invalidate_block(start);
}

static void ari64_shutdown()
{
	new_dynarec_cleanup();
}

extern void intExecute();
extern void intExecuteT();
extern void intExecuteBlock();
extern void intExecuteBlockT();
#ifndef DRC_DBG
#define intExecuteT intExecute
#define intExecuteBlockT intExecuteBlock
#endif

R3000Acpu psxRec = {
	ari64_init,
	ari64_reset,
#if 1
	ari64_execute,
	ari64_execute,
#else
	intExecuteT,
	intExecuteBlockT,
#endif
	ari64_clear,
	ari64_shutdown
};

// TODO: rm
#ifndef DRC_DBG
void do_insn_trace() {}
void do_insn_cmp() {}
#endif

#if defined(__x86_64__) || defined(__i386__)
unsigned int address, readmem_word, word;
unsigned short hword;
unsigned char byte;
int pending_exception, stop;
unsigned int next_interupt;
void new_dynarec_init() {}
void new_dyna_start() {}
void new_dynarec_cleanup() {}
void invalidate_all_pages() {}
void invalidate_block(unsigned int block) {}
#endif

#ifdef DRC_DBG

#include <stddef.h>
static FILE *f;
extern u32 last_io_addr;

static void dump_mem(const char *fname, void *mem, size_t size)
{
	FILE *f1 = fopen(fname, "wb");
	if (f1 == NULL)
		f1 = fopen(strrchr(fname, '/') + 1, "wb");
	fwrite(mem, 1, size, f1);
	fclose(f1);
}

void do_insn_trace(void)
{
	static psxRegisters oldregs;
	static u32 old_io_addr = (u32)-1;
	static u32 old_io_data = 0xbad0c0de;
	u32 *allregs_p = (void *)&psxRegs;
	u32 *allregs_o = (void *)&oldregs;
	u32 *io_data;
	int i;
	u8 byte;

//last_io_addr = 0x5e2c8;
	if (f == NULL)
		f = fopen("tracelog", "wb");

	oldregs.code = psxRegs.code; // don't care
	for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) {
		if (allregs_p[i] != allregs_o[i]) {
			fwrite(&i, 1, 1, f);
			fwrite(&allregs_p[i], 1, 4, f);
			allregs_o[i] = allregs_p[i];
		}
	}
	if (old_io_addr != last_io_addr) {
		byte = 0xfd;
		fwrite(&byte, 1, 1, f);
		fwrite(&last_io_addr, 1, 4, f);
		old_io_addr = last_io_addr;
	}
	io_data = (void *)(psxM + (last_io_addr&0x1ffffc));
	if (old_io_data != *io_data) {
		byte = 0xfe;
		fwrite(&byte, 1, 1, f);
		fwrite(io_data, 1, 4, f);
		old_io_data = *io_data;
	}
	byte = 0xff;
	fwrite(&byte, 1, 1, f);

#if 0
	if (psxRegs.cycle == 190230) {
		dump_mem("/mnt/ntz/dev/pnd/tmp/psxram_i.dump", psxM, 0x200000);
		dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs_i.dump", psxH, 0x10000);
		printf("dumped\n");
		exit(1);
	}
#endif
}

static const char *regnames[offsetof(psxRegisters, intCycle) / 4] = {
	"r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
	"r8",  "r9",  "r10", "r11", "r12", "r13", "r14", "r15",
	"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
	"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
	"lo",  "hi",
	"C0_0",  "C0_1",  "C0_2",  "C0_3",  "C0_4",  "C0_5",  "C0_6",  "C0_7",
	"C0_8",  "C0_9",  "C0_10", "C0_11", "C0_12", "C0_13", "C0_14", "C0_15",
	"C0_16", "C0_17", "C0_18", "C0_19", "C0_20", "C0_21", "C0_22", "C0_23",
	"C0_24", "C0_25", "C0_26", "C0_27", "C0_28", "C0_29", "C0_30", "C0_31",

	"C2D0",  "C2D1",  "C2D2",  "C2D3",  "C2D4",  "C2D5",  "C2D6",  "C2D7",
	"C2D8",  "C2D9",  "C2D10", "C2D11", "C2D12", "C2D13", "C2D14", "C2D15",
	"C2D16", "C2D17", "C2D18", "C2D19", "C2D20", "C2D21", "C2D22", "C2D23",
	"C2D24", "C2D25", "C2D26", "C2D27", "C2D28", "C2D29", "C2D30", "C2D31",

	"C2C0",  "C2C1",  "C2C2",  "C2C3",  "C2C4",  "C2C5",  "C2C6",  "C2C7",
	"C2C8",  "C2C9",  "C2C10", "C2C11", "C2C12", "C2C13", "C2C14", "C2C15",
	"C2C16", "C2C17", "C2C18", "C2C19", "C2C20", "C2C21", "C2C22", "C2C23",
	"C2C24", "C2C25", "C2C26", "C2C27", "C2C28", "C2C29", "C2C30", "C2C31",

	"PC", "code", "cycle", "interrupt",
};

static struct {
	int reg;
	u32 val, val_expect;
	u32 pc, cycle;
} miss_log[64];
static int miss_log_i;
#define miss_log_len (sizeof(miss_log)/sizeof(miss_log[0]))
#define miss_log_mask (miss_log_len-1)

static void miss_log_add(int reg, u32 val, u32 val_expect, u32 pc, u32 cycle)
{
	miss_log[miss_log_i].reg = reg;
	miss_log[miss_log_i].val = val;
	miss_log[miss_log_i].val_expect = val_expect;
	miss_log[miss_log_i].pc = pc;
	miss_log[miss_log_i].cycle = cycle;
	miss_log_i = (miss_log_i + 1) & miss_log_mask;
}

void breakme() {}

void do_insn_cmp(void)
{
	static psxRegisters rregs;
	static u32 mem_addr, mem_val;
	u32 *allregs_p = (void *)&psxRegs;
	u32 *allregs_e = (void *)&rregs;
	static u32 ppc, failcount;
	int i, ret, bad = 0;
	u8 code;

	if (f == NULL)
		f = fopen("tracelog", "rb");

	while (1) {
		if ((ret = fread(&code, 1, 1, f)) <= 0)
			break;
		if (ret <= 0)
			break;
		if (code == 0xff)
			break;
		if (code == 0xfd) {
			if ((ret = fread(&mem_addr, 1, 4, f)) <= 0)
				break;
			continue;
		}
		if (code == 0xfe) {
			if ((ret = fread(&mem_val, 1, 4, f)) <= 0)
				break;
			continue;
		}
		if ((ret = fread(&allregs_e[code], 1, 4, f)) <= 0)
			break;
	}

	if (ret <= 0) {
		printf("EOF?\n");
		goto end;
	}

	psxRegs.code = rregs.code; // don't care
psxRegs.cycle = rregs.cycle;
psxRegs.CP0.r[9] = rregs.CP0.r[9]; // Count

//if (psxRegs.cycle == 166172) breakme();
//if (psxRegs.cycle > 11296376) printf("pc=%08x %u  %08x\n", psxRegs.pc, psxRegs.cycle, psxRegs.interrupt);

	mem_addr &= 0x1ffffc;

	if (memcmp(&psxRegs, &rregs, offsetof(psxRegisters, intCycle)) == 0 &&
			mem_val == *(u32 *)(psxM + mem_addr)
	   ) {
		failcount = 0;
		goto ok;
	}

	for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) {
		if (allregs_p[i] != allregs_e[i]) {
			miss_log_add(i, allregs_p[i], allregs_e[i], psxRegs.pc, psxRegs.cycle);
			bad++;
		}
	}

	if (mem_val != *(u32 *)(psxM + mem_addr)) {
		printf("bad mem @%08x: %08x %08x\n", mem_addr, *(u32 *)(psxM + mem_addr), mem_val);
		goto end;
	}

	if (psxRegs.pc == rregs.pc && bad < 6 && failcount < 32) {
		static int last_mcycle;
		if (last_mcycle != psxRegs.cycle >> 20) {
			printf("%u\n", psxRegs.cycle);
			last_mcycle = psxRegs.cycle >> 20;
		}
		failcount++;
		goto ok;
	}

end:
	for (i = 0; i < miss_log_len; i++, miss_log_i = (miss_log_i + 1) & miss_log_mask)
		printf("bad %5s: %08x %08x, pc=%08x, cycle %u\n",
			regnames[miss_log[miss_log_i].reg], miss_log[miss_log_i].val,
			miss_log[miss_log_i].val_expect, miss_log[miss_log_i].pc, miss_log[miss_log_i].cycle);
	printf("-- %d\n", bad);
	for (i = 0; i < 8; i++)
		printf("r%d=%08x r%2d=%08x r%2d=%08x r%2d=%08x\n", i, allregs_p[i],
			i+8, allregs_p[i+8], i+16, allregs_p[i+16], i+24, allregs_p[i+23]);
	printf("PC: %08x/%08x, cycle %u\n", psxRegs.pc, ppc, psxRegs.cycle);
	dump_mem("/mnt/ntz/dev/pnd/tmp/psxram.dump", psxM, 0x200000);
	dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs.dump", psxH, 0x10000);
	exit(1);
ok:
	psxRegs.cycle = rregs.cycle + 2; // sync timing
	ppc = psxRegs.pc;
}

#endif
Commit	Line	Data
	1	// pending_exception?
	2	// swi 0 in do_unalignedwritestub?
	3	#include <stdio.h>
	4
	5	#include "emu_if.h"
	6	#include "../psxmem.h"
	7	#include "../psxhle.h"
	8
	9	#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
	10
	11	//#define memprintf printf
	12	#define memprintf(...)
	13	//#define evprintf printf
	14	#define evprintf(...)
	15
	16	char invalid_code[0x100000];
	17	u32 event_cycles[6];
	18
	19	void MTC0_()
	20	{
	21	extern void psxMTC0();
	22
	23	memprintf("ari64 MTC0 %08x\n", psxRegs.code);
	24	psxMTC0();
	25	pending_exception = 1; /* FIXME? */
	26	}
	27
	28	static void schedule_timeslice(void)
	29	{
	30	u32 i, c = psxRegs.cycle;
	31	s32 min, dif;
	32
	33	min = psxNextsCounter + psxNextCounter - c;
	34	for (i = 0; i < ARRAY_SIZE(event_cycles); i++) {
	35	dif = event_cycles[i] - c;
	36	//evprintf(" ev %d\n", dif);
	37	if (0 < dif && dif < min)
	38	min = dif;
	39	}
	40	next_interupt = c + min;
	41
	42	#if 0
	43	static u32 cnt, last_cycle;
	44	static u64 sum;
	45	if (last_cycle) {
	46	cnt++;
	47	sum += psxRegs.cycle - last_cycle;
	48	if ((cnt & 0xff) == 0)
	49	printf("%u\n", (u32)(sum / cnt));
	50	}
	51	last_cycle = psxRegs.cycle;
	52	#endif
	53	}
	54
	55	void gen_interupt()
	56	{
	57	//evprintf("ari64_gen_interupt\n");
	58	evprintf(" +ge %08x, %u->%u\n", psxRegs.pc, psxRegs.cycle, next_interupt);
	59	#ifdef DRC_DBG
	60	psxRegs.cycle += 2;
	61	#endif
	62
	63	psxBranchTest();
	64
	65	schedule_timeslice();
	66
	67	evprintf(" -ge %08x, %u->%u (%d)\n", psxRegs.pc, psxRegs.cycle,
	68	next_interupt, next_interupt - psxRegs.cycle);
	69
	70	pending_exception = 1; /* FIXME */
	71	}
	72
	73	void check_interupt()
	74	{
	75	printf("ari64_check_interupt\n");
	76	}
	77
	78	void read_nomem_new()
	79	{
	80	printf("ari64_read_nomem_new\n");
	81	}
	82
	83	static void read_mem8()
	84	{
	85	memprintf("ari64_read_mem8 %08x, PC~=%08x\n", address, psxRegs.pc);
	86	readmem_word = psxMemRead8(address) & 0xff;
	87	}
	88
	89	static void read_mem16()
	90	{
	91	memprintf("ari64_read_mem16 %08x, PC~=%08x\n", address, psxRegs.pc);
	92	readmem_word = psxMemRead16(address) & 0xffff;
	93	}
	94
	95	static void read_mem32()
	96	{
	97	memprintf("ari64_read_mem32 %08x, PC~=%08x\n", address, psxRegs.pc);
	98	readmem_word = psxMemRead32(address);
	99	}
	100
	101	static void write_mem8()
	102	{
	103	memprintf("ari64_write_mem8 %08x, %02x, PC~=%08x\n", address, byte, psxRegs.pc);
	104	psxMemWrite8(address, byte);
	105	}
	106
	107	static void write_mem16()
	108	{
	109	memprintf("ari64_write_mem16 %08x, %04x, PC~=%08x\n", address, hword, psxRegs.pc);
	110	psxMemWrite16(address, hword);
	111	}
	112
	113	static void write_mem32()
	114	{
	115	memprintf("ari64_write_mem32 %08x, %08x, PC~=%08x\n", address, word, psxRegs.pc);
	116	psxMemWrite32(address, word);
	117	}
	118
	119	void (*readmem[0x10000])();
	120	void (*readmemb[0x10000])();
	121	void (*readmemh[0x10000])();
	122	void (*writemem[0x10000])();
	123	void (*writememb[0x10000])();
	124	void (*writememh[0x10000])();
	125
	126	void *gte_handlers[64];
	127
	128	/* from gte.txt.. not sure if this is any good. */
	129	const char gte_cycletab[64] = {
	130	/* 1 2 3 4 5 6 7 8 9 a b c d e f */
	131	0, 15, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 6, 0, 0, 0,
	132	8, 8, 8, 19, 13, 0, 44, 0, 0, 0, 0, 17, 11, 0, 14, 0,
	133	30, 0, 0, 0, 0, 0, 0, 0, 5, 8, 17, 0, 0, 5, 6, 0,
	134	23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 39,
	135	};
	136
	137	static int ari64_init()
	138	{
	139	extern void (*psxCP2[64])();
	140	extern void psxNULL();
	141	size_t i;
	142
	143	new_dynarec_init();
	144
	145	for (i = 0; i < ARRAY_SIZE(readmem); i++) {
	146	readmemb[i] = read_mem8;
	147	readmemh[i] = read_mem16;
	148	readmem[i] = read_mem32;
	149	writememb[i] = write_mem8;
	150	writememh[i] = write_mem16;
	151	writemem[i] = write_mem32;
	152	}
	153
	154	for (i = 0; i < ARRAY_SIZE(gte_handlers); i++)
	155	if (psxCP2[i] != psxNULL)
	156	gte_handlers[i] = psxCP2[i];
	157
	158	return 0;
	159	}
	160
	161	static void ari64_reset()
	162	{
	163	printf("ari64_reset\n");
	164	invalidate_all_pages();
	165	pending_exception = 1;
	166	}
	167
	168	static void ari64_execute()
	169	{
	170	schedule_timeslice();
	171
	172	evprintf("ari64_execute %08x, %u->%u (%d)\n", psxRegs.pc,
	173	psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle);
	174
	175	new_dyna_start();
	176
	177	evprintf("ari64_execute end %08x, %u->%u (%d)\n", psxRegs.pc,
	178	psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle);
	179	}
	180
	181	static void ari64_clear(u32 addr, u32 size)
	182	{
	183	u32 start, end;
	184
	185	evprintf("ari64_clear %08x %04x\n", addr, size);
	186
	187	/* check for RAM mirrors */
	188	if ((start & ~0xe0000000) < 0x200000) {
	189	start &= ~0xe0000000;
	190	start \|= 0x80000000;
	191	}
	192
	193	start = addr >> 12;
	194	end = (addr + size) >> 12;
	195
	196	for (; start <= end; start++)
	197	if (!invalid_code[start])
	198	invalidate_block(start);
	199	}
	200
	201	static void ari64_shutdown()
	202	{
	203	new_dynarec_cleanup();
	204	}
	205
	206	extern void intExecute();
	207	extern void intExecuteT();
	208	extern void intExecuteBlock();
	209	extern void intExecuteBlockT();
	210	#ifndef DRC_DBG
	211	#define intExecuteT intExecute
	212	#define intExecuteBlockT intExecuteBlock
	213	#endif
	214
	215	R3000Acpu psxRec = {
	216	ari64_init,
	217	ari64_reset,
	218	#if 1
	219	ari64_execute,
	220	ari64_execute,
	221	#else
	222	intExecuteT,
	223	intExecuteBlockT,
	224	#endif
	225	ari64_clear,
	226	ari64_shutdown
	227	};
	228
	229	// TODO: rm
	230	#ifndef DRC_DBG
	231	void do_insn_trace() {}
	232	void do_insn_cmp() {}
	233	#endif
	234
	235	#if defined(__x86_64__) \|\| defined(__i386__)
	236	unsigned int address, readmem_word, word;
	237	unsigned short hword;
	238	unsigned char byte;
	239	int pending_exception, stop;
	240	unsigned int next_interupt;
	241	void new_dynarec_init() {}
	242	void new_dyna_start() {}
	243	void new_dynarec_cleanup() {}
	244	void invalidate_all_pages() {}
	245	void invalidate_block(unsigned int block) {}
	246	#endif
	247
	248	#ifdef DRC_DBG
	249
	250	#include <stddef.h>
	251	static FILE *f;
	252	extern u32 last_io_addr;
	253
	254	static void dump_mem(const char fname, void mem, size_t size)
	255	{
	256	FILE *f1 = fopen(fname, "wb");
	257	if (f1 == NULL)
	258	f1 = fopen(strrchr(fname, '/') + 1, "wb");
	259	fwrite(mem, 1, size, f1);
	260	fclose(f1);
	261	}
	262
	263	void do_insn_trace(void)
	264	{
	265	static psxRegisters oldregs;
	266	static u32 old_io_addr = (u32)-1;
	267	static u32 old_io_data = 0xbad0c0de;
	268	u32 allregs_p = (void )&psxRegs;
	269	u32 allregs_o = (void )&oldregs;
	270	u32 *io_data;
	271	int i;
	272	u8 byte;
	273
	274	//last_io_addr = 0x5e2c8;
	275	if (f == NULL)
	276	f = fopen("tracelog", "wb");
	277
	278	oldregs.code = psxRegs.code; // don't care
	279	for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) {
	280	if (allregs_p[i] != allregs_o[i]) {
	281	fwrite(&i, 1, 1, f);
	282	fwrite(&allregs_p[i], 1, 4, f);
	283	allregs_o[i] = allregs_p[i];
	284	}
	285	}
	286	if (old_io_addr != last_io_addr) {
	287	byte = 0xfd;
	288	fwrite(&byte, 1, 1, f);
	289	fwrite(&last_io_addr, 1, 4, f);
	290	old_io_addr = last_io_addr;
	291	}
	292	io_data = (void *)(psxM + (last_io_addr&0x1ffffc));
	293	if (old_io_data != *io_data) {
	294	byte = 0xfe;
	295	fwrite(&byte, 1, 1, f);
	296	fwrite(io_data, 1, 4, f);
	297	old_io_data = *io_data;
	298	}
	299	byte = 0xff;
	300	fwrite(&byte, 1, 1, f);
	301
	302	#if 0
	303	if (psxRegs.cycle == 190230) {
	304	dump_mem("/mnt/ntz/dev/pnd/tmp/psxram_i.dump", psxM, 0x200000);
	305	dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs_i.dump", psxH, 0x10000);
	306	printf("dumped\n");
	307	exit(1);
	308	}
	309	#endif
	310	}
	311
	312	static const char *regnames[offsetof(psxRegisters, intCycle) / 4] = {
	313	"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
	314	"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
	315	"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
	316	"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
	317	"lo", "hi",
	318	"C0_0", "C0_1", "C0_2", "C0_3", "C0_4", "C0_5", "C0_6", "C0_7",
	319	"C0_8", "C0_9", "C0_10", "C0_11", "C0_12", "C0_13", "C0_14", "C0_15",
	320	"C0_16", "C0_17", "C0_18", "C0_19", "C0_20", "C0_21", "C0_22", "C0_23",
	321	"C0_24", "C0_25", "C0_26", "C0_27", "C0_28", "C0_29", "C0_30", "C0_31",
	322
	323	"C2D0", "C2D1", "C2D2", "C2D3", "C2D4", "C2D5", "C2D6", "C2D7",
	324	"C2D8", "C2D9", "C2D10", "C2D11", "C2D12", "C2D13", "C2D14", "C2D15",
	325	"C2D16", "C2D17", "C2D18", "C2D19", "C2D20", "C2D21", "C2D22", "C2D23",
	326	"C2D24", "C2D25", "C2D26", "C2D27", "C2D28", "C2D29", "C2D30", "C2D31",
	327
	328	"C2C0", "C2C1", "C2C2", "C2C3", "C2C4", "C2C5", "C2C6", "C2C7",
	329	"C2C8", "C2C9", "C2C10", "C2C11", "C2C12", "C2C13", "C2C14", "C2C15",
	330	"C2C16", "C2C17", "C2C18", "C2C19", "C2C20", "C2C21", "C2C22", "C2C23",
	331	"C2C24", "C2C25", "C2C26", "C2C27", "C2C28", "C2C29", "C2C30", "C2C31",
	332
	333	"PC", "code", "cycle", "interrupt",
	334	};
	335
	336	static struct {
	337	int reg;
	338	u32 val, val_expect;
	339	u32 pc, cycle;
	340	} miss_log[64];
	341	static int miss_log_i;
	342	#define miss_log_len (sizeof(miss_log)/sizeof(miss_log[0]))
	343	#define miss_log_mask (miss_log_len-1)
	344
	345	static void miss_log_add(int reg, u32 val, u32 val_expect, u32 pc, u32 cycle)
	346	{
	347	miss_log[miss_log_i].reg = reg;
	348	miss_log[miss_log_i].val = val;
	349	miss_log[miss_log_i].val_expect = val_expect;
	350	miss_log[miss_log_i].pc = pc;
	351	miss_log[miss_log_i].cycle = cycle;
	352	miss_log_i = (miss_log_i + 1) & miss_log_mask;
	353	}
	354
	355	void breakme() {}
	356
	357	void do_insn_cmp(void)
	358	{
	359	static psxRegisters rregs;
	360	static u32 mem_addr, mem_val;
	361	u32 allregs_p = (void )&psxRegs;
	362	u32 allregs_e = (void )&rregs;
	363	static u32 ppc, failcount;
	364	int i, ret, bad = 0;
	365	u8 code;
	366
	367	if (f == NULL)
	368	f = fopen("tracelog", "rb");
	369
	370	while (1) {
	371	if ((ret = fread(&code, 1, 1, f)) <= 0)
	372	break;
	373	if (ret <= 0)
	374	break;
	375	if (code == 0xff)
	376	break;
	377	if (code == 0xfd) {
	378	if ((ret = fread(&mem_addr, 1, 4, f)) <= 0)
	379	break;
	380	continue;
	381	}
	382	if (code == 0xfe) {
	383	if ((ret = fread(&mem_val, 1, 4, f)) <= 0)
	384	break;
	385	continue;
	386	}
	387	if ((ret = fread(&allregs_e[code], 1, 4, f)) <= 0)
	388	break;
	389	}
	390
	391	if (ret <= 0) {
	392	printf("EOF?\n");
	393	goto end;
	394	}
	395
	396	psxRegs.code = rregs.code; // don't care
	397	psxRegs.cycle = rregs.cycle;
	398	psxRegs.CP0.r[9] = rregs.CP0.r[9]; // Count
	399
	400	//if (psxRegs.cycle == 166172) breakme();
	401	//if (psxRegs.cycle > 11296376) printf("pc=%08x %u %08x\n", psxRegs.pc, psxRegs.cycle, psxRegs.interrupt);
	402
	403	mem_addr &= 0x1ffffc;
	404
	405	if (memcmp(&psxRegs, &rregs, offsetof(psxRegisters, intCycle)) == 0 &&
	406	mem_val == (u32 )(psxM + mem_addr)
	407	) {
	408	failcount = 0;
	409	goto ok;
	410	}
	411
	412	for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) {
	413	if (allregs_p[i] != allregs_e[i]) {
	414	miss_log_add(i, allregs_p[i], allregs_e[i], psxRegs.pc, psxRegs.cycle);
	415	bad++;
	416	}
	417	}
	418
	419	if (mem_val != (u32 )(psxM + mem_addr)) {
	420	printf("bad mem @%08x: %08x %08x\n", mem_addr, (u32 )(psxM + mem_addr), mem_val);
	421	goto end;
	422	}
	423
	424	if (psxRegs.pc == rregs.pc && bad < 6 && failcount < 32) {
	425	static int last_mcycle;
	426	if (last_mcycle != psxRegs.cycle >> 20) {
	427	printf("%u\n", psxRegs.cycle);
	428	last_mcycle = psxRegs.cycle >> 20;
	429	}
	430	failcount++;
	431	goto ok;
	432	}
	433
	434	end:
	435	for (i = 0; i < miss_log_len; i++, miss_log_i = (miss_log_i + 1) & miss_log_mask)
	436	printf("bad %5s: %08x %08x, pc=%08x, cycle %u\n",
	437	regnames[miss_log[miss_log_i].reg], miss_log[miss_log_i].val,
	438	miss_log[miss_log_i].val_expect, miss_log[miss_log_i].pc, miss_log[miss_log_i].cycle);
	439	printf("-- %d\n", bad);
	440	for (i = 0; i < 8; i++)
	441	printf("r%d=%08x r%2d=%08x r%2d=%08x r%2d=%08x\n", i, allregs_p[i],
	442	i+8, allregs_p[i+8], i+16, allregs_p[i+16], i+24, allregs_p[i+23]);
	443	printf("PC: %08x/%08x, cycle %u\n", psxRegs.pc, ppc, psxRegs.cycle);
	444	dump_mem("/mnt/ntz/dev/pnd/tmp/psxram.dump", psxM, 0x200000);
	445	dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs.dump", psxH, 0x10000);
	446	exit(1);
	447	ok:
	448	psxRegs.cycle = rregs.cycle + 2; // sync timing
	449	ppc = psxRegs.pc;
	450	}
	451
	452	#endif