[picodrive.git] / cpu / sh2 / mame / sh2pico.c

#include "../sh2.h"

#ifdef DRC_CMP
#include "../compiler.c"
#define BUSY_LOOP_HACKS 0
#else
#define BUSY_LOOP_HACKS 1
#endif

// MAME types
#ifndef INT8
typedef signed char  INT8;
typedef signed short INT16;
typedef signed int   INT32;
typedef unsigned int   UINT32;
typedef unsigned short UINT16;
typedef unsigned char  UINT8;
#endif

#define RB(sh2, a) p32x_sh2_read8(a,sh2)
#define RW(sh2, a) p32x_sh2_read16(a,sh2)
#define RL(sh2, a) p32x_sh2_read32(a,sh2)
#define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2)
#define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2)
#define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2)

// some stuff from sh2comn.h
#define T	0x00000001
#define S	0x00000002
#define I	0x000000f0
#define Q	0x00000100
#define M	0x00000200

#define AM	0xc7ffffff

#define FLAGS	(M|Q|I|S|T)

#define Rn	((opcode>>8)&15)
#define Rm	((opcode>>4)&15)

#define sh2_state SH2

extern void lprintf(const char *fmt, ...);
#define logerror lprintf

#ifdef SH2_STATS
static SH2 sh2_stats;
static unsigned int op_refs[0x10000];
# define LRN  1
# define LRM  2
# define LRNM (LRN|LRM)
# define rlog(rnm) {   \
  int op = opcode;     \
  if ((rnm) & LRN) {   \
    op &= ~0x0f00;     \
    sh2_stats.r[Rn]++; \
  }                    \
  if ((rnm) & LRM) {   \
    op &= ~0x00f0;     \
    sh2_stats.r[Rm]++; \
  }                    \
  op_refs[op]++;       \
}
# define rlog1(x) sh2_stats.r[x]++
# define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++
#else
# define rlog(x)
# define rlog1(...)
# define rlog2(...)
#endif

#include "sh2.c"

#ifndef DRC_SH2
#ifndef DRC_CMP

int sh2_execute(SH2 *sh2, int cycles)
{
	UINT32 opcode;

	sh2->icount = sh2->cycles_timeslice = cycles;

	if (sh2->icount <= 0)
		goto out;

	do
	{
		if (sh2->delay)
		{
			sh2->ppc = sh2->delay;
			opcode = RW(sh2, sh2->delay);
			sh2->pc -= 2;
		}
		else
		{
			sh2->ppc = sh2->pc;
			opcode = RW(sh2, sh2->pc);
		}

		sh2->delay = 0;
		sh2->pc += 2;

		switch (opcode & ( 15 << 12))
		{
		case  0<<12: op0000(sh2, opcode); break;
		case  1<<12: op0001(sh2, opcode); break;
		case  2<<12: op0010(sh2, opcode); break;
		case  3<<12: op0011(sh2, opcode); break;
		case  4<<12: op0100(sh2, opcode); break;
		case  5<<12: op0101(sh2, opcode); break;
		case  6<<12: op0110(sh2, opcode); break;
		case  7<<12: op0111(sh2, opcode); break;
		case  8<<12: op1000(sh2, opcode); break;
		case  9<<12: op1001(sh2, opcode); break;
		case 10<<12: op1010(sh2, opcode); break;
		case 11<<12: op1011(sh2, opcode); break;
		case 12<<12: op1100(sh2, opcode); break;
		case 13<<12: op1101(sh2, opcode); break;
		case 14<<12: op1110(sh2, opcode); break;
		default: op1111(sh2, opcode); break;
		}

		sh2->icount--;

		if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
		{
			int level = sh2->pending_level;
			int vector = sh2->irq_callback(sh2, level);
			sh2_do_irq(sh2, level, vector);
			sh2->test_irq = 0;
		}

	}
	while (sh2->icount > 0 || sh2->delay);	/* can't interrupt before delay */

out:
	return sh2->cycles_timeslice - sh2->icount;
}

#else // if DRC_CMP

int sh2_execute(SH2 *sh2, int cycles)
{
	static unsigned int base_pc_[2] = { 0, 0 };
	static unsigned int end_pc_[2] = { 0, 0 };
	static unsigned char op_flags_[2][BLOCK_INSN_LIMIT];
	unsigned int *base_pc = &base_pc_[sh2->is_slave];
	unsigned int *end_pc = &end_pc_[sh2->is_slave];
	unsigned char *op_flags = op_flags_[sh2->is_slave];
	unsigned int pc_expect;
	UINT32 opcode;

	sh2->icount = sh2->cycles_timeslice = cycles;

	if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
	{
		int level = sh2->pending_level;
		int vector = sh2->irq_callback(sh2, level);
		sh2_do_irq(sh2, level, vector);
	}
	pc_expect = sh2->pc;

	if (sh2->icount <= 0)
		goto out;

	do
	{
		if (!sh2->delay) {
			if (sh2->pc < *base_pc || sh2->pc >= *end_pc) {
				*base_pc = sh2->pc;
				scan_block(*base_pc, sh2->is_slave,
					op_flags, end_pc, NULL);
			}
			if ((op_flags[(sh2->pc - *base_pc) / 2]
				& OF_BTARGET) || sh2->pc == *base_pc
				|| pc_expect != sh2->pc) // branched
			{
				pc_expect = sh2->pc;
				if (sh2->icount < 0)
					break;
			}

			do_sh2_trace(sh2, sh2->icount);
		}
		pc_expect += 2;

		if (sh2->delay)
		{
			sh2->ppc = sh2->delay;
			opcode = RW(sh2, sh2->delay);
			sh2->pc -= 2;
		}
		else
		{
			sh2->ppc = sh2->pc;
			opcode = RW(sh2, sh2->pc);
		}

		sh2->delay = 0;
		sh2->pc += 2;

		switch (opcode & ( 15 << 12))
		{
		case  0<<12: op0000(sh2, opcode); break;
		case  1<<12: op0001(sh2, opcode); break;
		case  2<<12: op0010(sh2, opcode); break;
		case  3<<12: op0011(sh2, opcode); break;
		case  4<<12: op0100(sh2, opcode); break;
		case  5<<12: op0101(sh2, opcode); break;
		case  6<<12: op0110(sh2, opcode); break;
		case  7<<12: op0111(sh2, opcode); break;
		case  8<<12: op1000(sh2, opcode); break;
		case  9<<12: op1001(sh2, opcode); break;
		case 10<<12: op1010(sh2, opcode); break;
		case 11<<12: op1011(sh2, opcode); break;
		case 12<<12: op1100(sh2, opcode); break;
		case 13<<12: op1101(sh2, opcode); break;
		case 14<<12: op1110(sh2, opcode); break;
		default: op1111(sh2, opcode); break;
		}

		sh2->icount--;

		if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
		{
			int level = sh2->pending_level;
			int vector = sh2->irq_callback(sh2, level);
			sh2_do_irq(sh2, level, vector);
			sh2->test_irq = 0;
		}

	}
	while (1);

out:
	return sh2->cycles_timeslice - sh2->icount;
}

#endif // DRC_CMP
#endif // DRC_SH2

#ifdef SH2_STATS
#include <stdio.h>
#include <string.h>
#include "sh2dasm.h"

void sh2_dump_stats(void)
{
	static const char *rnames[] = {
		"R0", "R1", "R2",  "R3",  "R4",  "R5",  "R6",  "R7",
		"R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP",
		"PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL"
	};
	long long total;
	char buff[64];
	int u, i;

	// dump reg usage
	total = 0;
	for (i = 0; i < 24; i++)
		total += sh2_stats.r[i];

	for (i = 0; i < 24; i++) {
		if (i == 16 || i == 17 || i == 19)
			continue;
		printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total,
			rnames[i], sh2_stats.r[i]);
	}

	memset(&sh2_stats, 0, sizeof(sh2_stats));

	// dump ops
	printf("\n");
	total = 0;
	for (i = 0; i < 0x10000; i++)
		total += op_refs[i];

	for (u = 0; u < 16; u++) {
		int max = 0, op = 0;
		for (i = 0; i < 0x10000; i++) {
			if (op_refs[i] > max) {
				max = op_refs[i];
				op = i;
			}
		}
		DasmSH2(buff, 0, op);
		printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total,
			op_refs[op], buff);
		op_refs[op] = 0;
	}
	memset(op_refs, 0, sizeof(op_refs));
}
#endif
Commit	Line	Data
41397701	1	#include "../sh2.h"
405dfdd7	2
00faec9c	3	#ifdef DRC_CMP
00faec9c	4	#include "../compiler.c"
405dfdd7	5	#define BUSY_LOOP_HACKS 0
	6	#else
	7	#define BUSY_LOOP_HACKS 1
00faec9c	8	#endif
eaa10a6e	9
eaa10a6e	10	// MAME types
00faec9c	11	#ifndef INT8
eaa10a6e	12	typedef signed char INT8;
	13	typedef signed short INT16;
	14	typedef signed int INT32;
	15	typedef unsigned int UINT32;
	16	typedef unsigned short UINT16;
	17	typedef unsigned char UINT8;
00faec9c	18	#endif
eaa10a6e	19
f4c0720c	20	#define RB(sh2, a) p32x_sh2_read8(a,sh2)
	21	#define RW(sh2, a) p32x_sh2_read16(a,sh2)
	22	#define RL(sh2, a) p32x_sh2_read32(a,sh2)
	23	#define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2)
	24	#define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2)
	25	#define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2)
eaa10a6e	26
	27	// some stuff from sh2comn.h
	28	#define T 0x00000001
	29	#define S 0x00000002
	30	#define I 0x000000f0
	31	#define Q 0x00000100
	32	#define M 0x00000200
	33
	34	#define AM 0xc7ffffff
	35
	36	#define FLAGS (M\|Q\|I\|S\|T)
	37
	38	#define Rn ((opcode>>8)&15)
	39	#define Rm ((opcode>>4)&15)
	40
f4c0720c	41	#define sh2_state SH2
	42
	43	extern void lprintf(const char *fmt, ...);
	44	#define logerror lprintf
1d7a28a7	45
71f68165	46	#ifdef SH2_STATS
	47	static SH2 sh2_stats;
	48	static unsigned int op_refs[0x10000];
	49	# define LRN 1
	50	# define LRM 2
	51	# define LRNM (LRN\|LRM)
	52	# define rlog(rnm) { \
	53	int op = opcode; \
	54	if ((rnm) & LRN) { \
	55	op &= ~0x0f00; \
	56	sh2_stats.r[Rn]++; \
	57	} \
	58	if ((rnm) & LRM) { \
	59	op &= ~0x00f0; \
	60	sh2_stats.r[Rm]++; \
	61	} \
	62	op_refs[op]++; \
	63	}
	64	# define rlog1(x) sh2_stats.r[x]++
	65	# define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++
	66	#else
	67	# define rlog(x)
	68	# define rlog1(...)
	69	# define rlog2(...)
	70	#endif
	71
41397701	72	#include "sh2.c"
1d7a28a7	73
f0d7b1fa	74	#ifndef DRC_SH2
405dfdd7	75	#ifndef DRC_CMP
	76
	77	int sh2_execute(SH2 *sh2, int cycles)
	78	{
	79	UINT32 opcode;
	80
	81	sh2->icount = sh2->cycles_timeslice = cycles;
	82
	83	if (sh2->icount <= 0)
	84	goto out;
	85
	86	do
	87	{
	88	if (sh2->delay)
	89	{
	90	sh2->ppc = sh2->delay;
	91	opcode = RW(sh2, sh2->delay);
	92	sh2->pc -= 2;
	93	}
	94	else
	95	{
	96	sh2->ppc = sh2->pc;
	97	opcode = RW(sh2, sh2->pc);
	98	}
	99
	100	sh2->delay = 0;
	101	sh2->pc += 2;
	102
	103	switch (opcode & ( 15 << 12))
	104	{
	105	case 0<<12: op0000(sh2, opcode); break;
	106	case 1<<12: op0001(sh2, opcode); break;
	107	case 2<<12: op0010(sh2, opcode); break;
	108	case 3<<12: op0011(sh2, opcode); break;
	109	case 4<<12: op0100(sh2, opcode); break;
	110	case 5<<12: op0101(sh2, opcode); break;
	111	case 6<<12: op0110(sh2, opcode); break;
	112	case 7<<12: op0111(sh2, opcode); break;
	113	case 8<<12: op1000(sh2, opcode); break;
	114	case 9<<12: op1001(sh2, opcode); break;
	115	case 10<<12: op1010(sh2, opcode); break;
	116	case 11<<12: op1011(sh2, opcode); break;
	117	case 12<<12: op1100(sh2, opcode); break;
	118	case 13<<12: op1101(sh2, opcode); break;
	119	case 14<<12: op1110(sh2, opcode); break;
	120	default: op1111(sh2, opcode); break;
	121	}
	122
	123	sh2->icount--;
	124
	125	if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
	126	{
	127	int level = sh2->pending_level;
	128	int vector = sh2->irq_callback(sh2, level);
	129	sh2_do_irq(sh2, level, vector);
	130	sh2->test_irq = 0;
	131	}
	132
	133	}
	134	while (sh2->icount > 0 \|\| sh2->delay); /* can't interrupt before delay */
	135
	136	out:
	137	return sh2->cycles_timeslice - sh2->icount;
	138	}
139
140	#else // if DRC_CMP
679af8a3	141
f4c0720c	142	int sh2_execute(SH2 *sh2, int cycles)
eaa10a6e	143	{
6d797957	144	static unsigned int base_pc_[2] = { 0, 0 };
	145	static unsigned int end_pc_[2] = { 0, 0 };
	146	static unsigned char op_flags_[2][BLOCK_INSN_LIMIT];
	147	unsigned int *base_pc = &base_pc_[sh2->is_slave];
	148	unsigned int *end_pc = &end_pc_[sh2->is_slave];
	149	unsigned char *op_flags = op_flags_[sh2->is_slave];
405dfdd7	150	unsigned int pc_expect;
00faec9c	151	UINT32 opcode;
00faec9c	152
405dfdd7	153	sh2->icount = sh2->cycles_timeslice = cycles;
41397701	154
405dfdd7	155	if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
	156	{
	157	int level = sh2->pending_level;
	158	int vector = sh2->irq_callback(sh2, level);
	159	sh2_do_irq(sh2, level, vector);
	160	}
	161	pc_expect = sh2->pc;
ed4402a7	162
405dfdd7	163	if (sh2->icount <= 0)
405dfdd7	164	goto out;
eaa10a6e	165
	166	do
	167	{
00faec9c	168	if (!sh2->delay) {
6d797957	169	if (sh2->pc < base_pc \|\| sh2->pc >= end_pc) {
	170	*base_pc = sh2->pc;
	171	scan_block(*base_pc, sh2->is_slave,
	172	op_flags, end_pc, NULL);
00faec9c	173	}
6d797957	174	if ((op_flags[(sh2->pc - *base_pc) / 2]
	175	& OF_BTARGET) \|\| sh2->pc == *base_pc
	176	\|\| pc_expect != sh2->pc) // branched
bf092a36	177	{
6d797957	178	pc_expect = sh2->pc;
00faec9c	179	if (sh2->icount < 0)
	180	break;
	181	}
	182
	183	do_sh2_trace(sh2, sh2->icount);
	184	}
6d797957	185	pc_expect += 2;
eaa10a6e	186
3cf9570b	187	if (sh2->delay)
3cf9570b	188	{
a44737c1	189	sh2->ppc = sh2->delay;
f4c0720c	190	opcode = RW(sh2, sh2->delay);
3cf9570b	191	sh2->pc -= 2;
	192	}
	193	else
a44737c1	194	{
a44737c1	195	sh2->ppc = sh2->pc;
f4c0720c	196	opcode = RW(sh2, sh2->pc);
a44737c1	197	}
eaa10a6e	198
	199	sh2->delay = 0;
	200	sh2->pc += 2;
eaa10a6e	201
	202	switch (opcode & ( 15 << 12))
	203	{
f4c0720c	204	case 0<<12: op0000(sh2, opcode); break;
	205	case 1<<12: op0001(sh2, opcode); break;
	206	case 2<<12: op0010(sh2, opcode); break;
	207	case 3<<12: op0011(sh2, opcode); break;
	208	case 4<<12: op0100(sh2, opcode); break;
	209	case 5<<12: op0101(sh2, opcode); break;
	210	case 6<<12: op0110(sh2, opcode); break;
	211	case 7<<12: op0111(sh2, opcode); break;
	212	case 8<<12: op1000(sh2, opcode); break;
	213	case 9<<12: op1001(sh2, opcode); break;
	214	case 10<<12: op1010(sh2, opcode); break;
	215	case 11<<12: op1011(sh2, opcode); break;
	216	case 12<<12: op1100(sh2, opcode); break;
	217	case 13<<12: op1101(sh2, opcode); break;
	218	case 14<<12: op1110(sh2, opcode); break;
	219	default: op1111(sh2, opcode); break;
eaa10a6e	220	}
eaa10a6e	221
41397701	222	sh2->icount--;
1f1ff763	223
	224	if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
	225	{
	226	int level = sh2->pending_level;
	227	int vector = sh2->irq_callback(sh2, level);
	228	sh2_do_irq(sh2, level, vector);
	229	sh2->test_irq = 0;
	230	}
	231
eaa10a6e	232	}
00faec9c	233	while (1);
553c3eaa	234
405dfdd7	235	out:
00faec9c	236	return sh2->cycles_timeslice - sh2->icount;
679af8a3	237	}
679af8a3	238
405dfdd7	239	#endif // DRC_CMP
00faec9c	240	#endif // DRC_SH2
679af8a3	241
71f68165	242	#ifdef SH2_STATS
	243	#include <stdio.h>
	244	#include <string.h>
	245	#include "sh2dasm.h"
	246
	247	void sh2_dump_stats(void)
	248	{
	249	static const char *rnames[] = {
	250	"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
	251	"R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP",
	252	"PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL"
	253	};
	254	long long total;
	255	char buff[64];
	256	int u, i;
	257
	258	// dump reg usage
	259	total = 0;
	260	for (i = 0; i < 24; i++)
	261	total += sh2_stats.r[i];
	262
	263	for (i = 0; i < 24; i++) {
	264	if (i == 16 \|\| i == 17 \|\| i == 19)
	265	continue;
	266	printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total,
	267	rnames[i], sh2_stats.r[i]);
	268	}
	269
	270	memset(&sh2_stats, 0, sizeof(sh2_stats));
	271
	272	// dump ops
	273	printf("\n");
	274	total = 0;
	275	for (i = 0; i < 0x10000; i++)
	276	total += op_refs[i];
	277
	278	for (u = 0; u < 16; u++) {
	279	int max = 0, op = 0;
	280	for (i = 0; i < 0x10000; i++) {
	281	if (op_refs[i] > max) {
	282	max = op_refs[i];
	283	op = i;
	284	}
	285	}
	286	DasmSH2(buff, 0, op);
	287	printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total,
	288	op_refs[op], buff);
	289	op_refs[op] = 0;
	290	}
	291	memset(op_refs, 0, sizeof(op_refs));
	292	}
	293	#endif
	294