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

#include "../sh2.h"

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

#define RB(a) p32x_sh2_read8(a,sh2)
#define RW(a) p32x_sh2_read16(a,sh2)
#define RL(a) p32x_sh2_read32(a,sh2)
#define WB(a,d) p32x_sh2_write8(a,d,sh2)
#define WW(a,d) p32x_sh2_write16(a,d,sh2)
#define WL(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_icount sh2->icount

#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

int sh2_execute(SH2 *sh2_, int cycles)
{
	sh2 = sh2_;
	sh2->icount = cycles;

	if (sh2->icount <= 0)
		return cycles;

	sh2->cycles_timeslice = cycles;

	do
	{
		UINT32 opcode;

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

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

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

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

#else // DRC_SH2

#ifdef __i386__
#define REGPARM(x) __attribute__((regparm(x)))
#else
#define REGPARM(x)
#endif

// drc debug
void REGPARM(2) sh2_do_op(SH2 *sh2_, int opcode)
{
	sh2 = sh2_;
	sh2->pc += 2;

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

#endif

#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
	1	#include "../sh2.h"
	2
	3	// MAME types
	4	typedef signed char INT8;
	5	typedef signed short INT16;
	6	typedef signed int INT32;
	7	typedef unsigned int UINT32;
	8	typedef unsigned short UINT16;
	9	typedef unsigned char UINT8;
	10
	11	#define RB(a) p32x_sh2_read8(a,sh2)
	12	#define RW(a) p32x_sh2_read16(a,sh2)
	13	#define RL(a) p32x_sh2_read32(a,sh2)
	14	#define WB(a,d) p32x_sh2_write8(a,d,sh2)
	15	#define WW(a,d) p32x_sh2_write16(a,d,sh2)
	16	#define WL(a,d) p32x_sh2_write32(a,d,sh2)
	17
	18	// some stuff from sh2comn.h
	19	#define T 0x00000001
	20	#define S 0x00000002
	21	#define I 0x000000f0
	22	#define Q 0x00000100
	23	#define M 0x00000200
	24
	25	#define AM 0xc7ffffff
	26
	27	#define FLAGS (M\|Q\|I\|S\|T)
	28
	29	#define Rn ((opcode>>8)&15)
	30	#define Rm ((opcode>>4)&15)
	31
	32	#define sh2_icount sh2->icount
	33
	34	#ifdef SH2_STATS
	35	static SH2 sh2_stats;
	36	static unsigned int op_refs[0x10000];
	37	# define LRN 1
	38	# define LRM 2
	39	# define LRNM (LRN\|LRM)
	40	# define rlog(rnm) { \
	41	int op = opcode; \
	42	if ((rnm) & LRN) { \
	43	op &= ~0x0f00; \
	44	sh2_stats.r[Rn]++; \
	45	} \
	46	if ((rnm) & LRM) { \
	47	op &= ~0x00f0; \
	48	sh2_stats.r[Rm]++; \
	49	} \
	50	op_refs[op]++; \
	51	}
	52	# define rlog1(x) sh2_stats.r[x]++
	53	# define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++
	54	#else
	55	# define rlog(x)
	56	# define rlog1(...)
	57	# define rlog2(...)
	58	#endif
	59
	60	#include "sh2.c"
	61
	62	#ifndef DRC_SH2
	63
	64	int sh2_execute(SH2 *sh2_, int cycles)
	65	{
	66	sh2 = sh2_;
	67	sh2->icount = cycles;
	68
	69	if (sh2->icount <= 0)
	70	return cycles;
	71
	72	sh2->cycles_timeslice = cycles;
	73
	74	do
	75	{
	76	UINT32 opcode;
	77
	78	if (sh2->delay)
	79	{
	80	sh2->ppc = sh2->delay;
	81	opcode = RW(sh2->delay);
	82	sh2->pc -= 2;
	83	}
	84	else
	85	{
	86	sh2->ppc = sh2->pc;
	87	opcode = RW(sh2->pc);
	88	}
	89
	90	sh2->delay = 0;
	91	sh2->pc += 2;
	92
	93	switch (opcode & ( 15 << 12))
	94	{
	95	case 0<<12: op0000(opcode); break;
	96	case 1<<12: op0001(opcode); break;
	97	case 2<<12: op0010(opcode); break;
	98	case 3<<12: op0011(opcode); break;
	99	case 4<<12: op0100(opcode); break;
	100	case 5<<12: op0101(opcode); break;
	101	case 6<<12: op0110(opcode); break;
	102	case 7<<12: op0111(opcode); break;
	103	case 8<<12: op1000(opcode); break;
	104	case 9<<12: op1001(opcode); break;
	105	case 10<<12: op1010(opcode); break;
	106	case 11<<12: op1011(opcode); break;
	107	case 12<<12: op1100(opcode); break;
	108	case 13<<12: op1101(opcode); break;
	109	case 14<<12: op1110(opcode); break;
	110	default: op1111(opcode); break;
	111	}
	112
	113	sh2->icount--;
	114
	115	if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
	116	{
	117	int level = sh2->pending_level;
	118	int vector = sh2->irq_callback(sh2, level);
	119	sh2_do_irq(sh2, level, vector);
	120	sh2->test_irq = 0;
	121	}
	122
	123	}
	124	while (sh2->icount > 0 \|\| sh2->delay); /* can't interrupt before delay */
	125
	126	return sh2->cycles_timeslice - sh2->icount;
	127	}
	128
	129	#else // DRC_SH2
	130
	131	#ifdef __i386__
	132	#define REGPARM(x) __attribute__((regparm(x)))
	133	#else
	134	#define REGPARM(x)
	135	#endif
	136
	137	// drc debug
	138	void REGPARM(2) sh2_do_op(SH2 *sh2_, int opcode)
	139	{
	140	sh2 = sh2_;
	141	sh2->pc += 2;
	142
	143	switch (opcode & ( 15 << 12))
	144	{
	145	case 0<<12: op0000(opcode); break;
	146	case 1<<12: op0001(opcode); break;
	147	case 2<<12: op0010(opcode); break;
	148	case 3<<12: op0011(opcode); break;
	149	case 4<<12: op0100(opcode); break;
	150	case 5<<12: op0101(opcode); break;
	151	case 6<<12: op0110(opcode); break;
	152	case 7<<12: op0111(opcode); break;
	153	case 8<<12: op1000(opcode); break;
	154	case 9<<12: op1001(opcode); break;
	155	case 10<<12: op1010(opcode); break;
	156	case 11<<12: op1011(opcode); break;
	157	case 12<<12: op1100(opcode); break;
	158	case 13<<12: op1101(opcode); break;
	159	case 14<<12: op1110(opcode); break;
	160	default: op1111(opcode); break;
	161	}
	162	}
	163
	164	#endif
	165
	166	#ifdef SH2_STATS
	167	#include <stdio.h>
	168	#include <string.h>
	169	#include "sh2dasm.h"
	170
	171	void sh2_dump_stats(void)
	172	{
	173	static const char *rnames[] = {
	174	"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
	175	"R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP",
	176	"PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL"
	177	};
	178	long long total;
	179	char buff[64];
	180	int u, i;
	181
	182	// dump reg usage
	183	total = 0;
	184	for (i = 0; i < 24; i++)
	185	total += sh2_stats.r[i];
	186
	187	for (i = 0; i < 24; i++) {
	188	if (i == 16 \|\| i == 17 \|\| i == 19)
	189	continue;
	190	printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total,
	191	rnames[i], sh2_stats.r[i]);
	192	}
	193
	194	memset(&sh2_stats, 0, sizeof(sh2_stats));
	195
	196	// dump ops
	197	printf("\n");
	198	total = 0;
	199	for (i = 0; i < 0x10000; i++)
	200	total += op_refs[i];
	201
	202	for (u = 0; u < 16; u++) {
	203	int max = 0, op = 0;
	204	for (i = 0; i < 0x10000; i++) {
	205	if (op_refs[i] > max) {
	206	max = op_refs[i];
	207	op = i;
	208	}
	209	}
	210	DasmSH2(buff, 0, op);
	211	printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total,
	212	op_refs[op], buff);
	213	op_refs[op] = 0;
	214	}
	215	memset(op_refs, 0, sizeof(op_refs));
	216	}
	217	#endif
	218