-#include "../sh2.h"
+/*
+ * vim:shiftwidth=2:expandtab
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
-void sh2_execute(SH2 *sh2, int cycles)
+#include "../../pico/pico_int.h"
+#include "sh2.h"
+#include "compiler.h"
+#include "../drc/cmn.h"
+
+#ifndef DRC_DEBUG
+#define DRC_DEBUG 0
+#endif
+
+#if DRC_DEBUG
+#define dbg(l,...) { \
+ if ((l) & DRC_DEBUG) \
+ elprintf(EL_STATUS, ##__VA_ARGS__); \
+}
+
+#include "mame/sh2dasm.h"
+#include <platform/linux/host_dasm.h>
+static int insns_compiled, hash_collisions, host_insn_count;
+#define COUNT_OP \
+ host_insn_count++
+#else // !DRC_DEBUG
+#define COUNT_OP
+#define dbg(...)
+#endif
+
+#if (DRC_DEBUG & 2)
+static u8 *tcache_dsm_ptrs[3];
+static char sh2dasm_buff[64];
+#define do_host_disasm(tcid) \
+ host_dasm(tcache_dsm_ptrs[tcid], tcache_ptr - tcache_dsm_ptrs[tcid]); \
+ tcache_dsm_ptrs[tcid] = tcache_ptr
+#else
+#define do_host_disasm(x)
+#endif
+
+#define BLOCK_CYCLE_LIMIT 100
+#define MAX_BLOCK_SIZE (BLOCK_CYCLE_LIMIT * 6 * 6)
+
+// we have 3 translation cache buffers, split from one drc/cmn buffer.
+// BIOS shares tcache with data array because it's only used for init
+// and can be discarded early
+static const int tcache_sizes[3] = {
+ DRC_TCACHE_SIZE * 6 / 8, // ROM, DRAM
+ DRC_TCACHE_SIZE / 8, // BIOS, data array in master sh2
+ DRC_TCACHE_SIZE / 8, // ... slave
+};
+
+static u8 *tcache_bases[3];
+static u8 *tcache_ptrs[3];
+
+// ptr for code emiters
+static u8 *tcache_ptr;
+
+// host register tracking
+enum {
+ HR_FREE,
+ HR_CACHED, // 'val' has sh2_reg_e
+ HR_CACHED_DIRTY,
+ HR_CONST, // 'val' has constant
+ HR_TEMP, // reg used for temp storage
+};
+
+typedef struct {
+ u8 reg;
+ u8 type;
+ u16 stamp; // kind of a timestamp
+ u32 val;
+} temp_reg_t;
+
+#ifdef ARM
+#include "../drc/emit_arm.c"
+
+static const int reg_map_g2h[] = {
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+};
+
+static temp_reg_t reg_temp[] = {
+ { 0, },
+ { 1, },
+ { 12, },
+ { 14, },
+ { 2, },
+ { 3, },
+};
+
+#else
+#include "../drc/emit_x86.c"
+
+static const int reg_map_g2h[] = {
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+};
+
+// ax, cx, dx are usually temporaries
+static temp_reg_t reg_temp[] = {
+ { xAX, },
+ { xCX, },
+ { xDX, },
+};
+
+#endif
+
+typedef enum {
+ SHR_R0 = 0, SHR_R15 = 15,
+ SHR_PC, SHR_PPC, SHR_PR, SHR_SR,
+ SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL,
+} sh2_reg_e;
+
+typedef struct block_desc_ {
+ u32 addr; // SH2 PC address
+ u32 end_addr; // TODO rm?
+ void *tcache_ptr; // translated block for above PC
+ struct block_desc_ *next; // next block with the same PC hash
+#if (DRC_DEBUG & 1)
+ int refcount;
+#endif
+} block_desc;
+
+static const int block_max_counts[3] = {
+ 4*1024,
+ 256,
+ 256,
+};
+static block_desc *block_tables[3];
+static int block_counts[3];
+
+// ROM hash table
+#define MAX_HASH_ENTRIES 1024
+#define HASH_MASK (MAX_HASH_ENTRIES - 1)
+static void **hash_table;
+
+extern void sh2_drc_entry(SH2 *sh2, void *block);
+extern void sh2_drc_exit(void);
+
+// tmp
+extern void REGPARM(2) sh2_do_op(SH2 *sh2, int opcode);
+static void REGPARM(1) sh2_test_irq(SH2 *sh2);
+
+static void flush_tcache(int tcid)
+{
+ dbg(1, "tcache #%d flush! (%d/%d, bds %d/%d)", tcid,
+ tcache_ptrs[tcid] - tcache_bases[tcid], tcache_sizes[tcid],
+ block_counts[tcid], block_max_counts[tcid]);
+
+ block_counts[tcid] = 0;
+ tcache_ptrs[tcid] = tcache_bases[tcid];
+ if (tcid == 0) { // ROM, RAM
+ memset(hash_table, 0, sizeof(hash_table[0]) * MAX_HASH_ENTRIES);
+ memset(Pico32xMem->drcblk_ram, 0, sizeof(Pico32xMem->drcblk_ram));
+ }
+ else
+ memset(Pico32xMem->drcblk_da[tcid - 1], 0, sizeof(Pico32xMem->drcblk_da[0]));
+#if (DRC_DEBUG & 2)
+ tcache_dsm_ptrs[tcid] = tcache_bases[tcid];
+#endif
+}
+
+static void *dr_find_block(block_desc *tab, u32 addr)
+{
+ for (tab = tab->next; tab != NULL; tab = tab->next)
+ if (tab->addr == addr)
+ break;
+
+ if (tab != NULL)
+ return tab->tcache_ptr;
+
+ printf("block miss for %08x\n", addr);
+ return NULL;
+}
+
+static block_desc *dr_add_block(u32 addr, int tcache_id, int *blk_id)
+{
+ int *bcount = &block_counts[tcache_id];
+ block_desc *bd;
+
+ if (*bcount >= block_max_counts[tcache_id])
+ return NULL;
+
+ bd = &block_tables[tcache_id][*bcount];
+ bd->addr = addr;
+ bd->tcache_ptr = tcache_ptr;
+ *blk_id = *bcount;
+ (*bcount)++;
+
+ return bd;
+}
+
+#define HASH_FUNC(hash_tab, addr) \
+ ((block_desc **)(hash_tab))[(addr) & HASH_MASK]
+
+// ---------------------------------------------------------------
+
+// register chache
+static u16 rcache_counter;
+
+static temp_reg_t *rcache_evict(void)
+{
+ // evict reg with oldest stamp
+ int i, oldest = -1;
+ u16 min_stamp = (u16)-1;
+
+ for (i = 0; i < ARRAY_SIZE(reg_temp); i++) {
+ if (reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY)
+ if (reg_temp[i].stamp <= min_stamp) {
+ min_stamp = reg_temp[i].stamp;
+ oldest = i;
+ }
+ }
+
+ if (oldest == -1) {
+ printf("no registers to ec=vict, aborting\n");
+ exit(1);
+ }
+
+ i = oldest;
+ if (reg_temp[i].type == HR_CACHED_DIRTY) {
+ // writeback
+ emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4);
+ }
+
+ return ®_temp[i];
+}
+
+typedef enum {
+ RC_GR_READ,
+ RC_GR_WRITE,
+ RC_GR_RMW,
+} rc_gr_mode;
+
+static int rcache_get_reg(sh2_reg_e r, rc_gr_mode mode)
+{
+ temp_reg_t *tr;
+ int i;
+
+ // maybe already statically mapped?
+ i = reg_map_g2h[r];
+ if (i != -1)
+ return i;
+
+ rcache_counter++;
+
+ // maybe already cached?
+ for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) {
+ if ((reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY) &&
+ reg_temp[i].val == r)
+ {
+ reg_temp[i].stamp = rcache_counter;
+ if (mode != RC_GR_READ)
+ reg_temp[i].type = HR_CACHED_DIRTY;
+ return reg_temp[i].reg;
+ }
+ }
+
+ // use any free reg
+ for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) {
+ if (reg_temp[i].type == HR_FREE || reg_temp[i].type == HR_CONST) {
+ tr = ®_temp[i];
+ goto do_alloc;
+ }
+ }
+
+ tr = rcache_evict();
+
+do_alloc:
+ if (mode != RC_GR_WRITE)
+ emith_ctx_read(tr->reg, r * 4);
+
+ tr->type = mode != RC_GR_READ ? HR_CACHED_DIRTY : HR_CACHED;
+ tr->val = r;
+ tr->stamp = rcache_counter;
+ return tr->reg;
+}
+
+static int rcache_get_tmp(void)
+{
+ temp_reg_t *tr;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(reg_temp); i++)
+ if (reg_temp[i].type == HR_FREE || reg_temp[i].type == HR_CONST) {
+ tr = ®_temp[i];
+ goto do_alloc;
+ }
+
+ tr = rcache_evict();
+
+do_alloc:
+ tr->type = HR_TEMP;
+ return tr->reg;
+}
+
+static void rcache_free_tmp(int hr)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(reg_temp); i++)
+ if (reg_temp[i].reg == hr)
+ break;
+
+ if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP)
+ printf("rcache_free_tmp fail: #%i hr %d, type %d\n", i, hr, reg_temp[i].type);
+}
+
+static void rcache_flush(void)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(reg_temp); i++) {
+ if (reg_temp[i].type == HR_CACHED_DIRTY) {
+ // writeback
+ emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4);
+ }
+ reg_temp[i].type = HR_FREE;
+ }
+ rcache_counter = 0;
+}
+
+// ---------------------------------------------------------------
+
+static void emit_move_r_imm32(sh2_reg_e dst, u32 imm)
+{
+ int hr = rcache_get_reg(dst, RC_GR_WRITE);
+ emith_move_r_imm(hr, imm);
+}
+
+static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src)
+{
+ int hr_d = rcache_get_reg(dst, RC_GR_WRITE);
+ int hr_s = rcache_get_reg(src, RC_GR_READ);
+
+ emith_move_r_r(hr_d, hr_s);
+}
+
+/*
+static int sh2_translate_op4(int op)
+{
+ switch (op & 0x000f)
+ {
+ case 0x0b:
+ default:
+ emith_pass_arg(2, sh2, op);
+ emith_call(sh2_do_op);
+ break;
+ }
+
+ return 0;
+}
+*/
+
+#define DELAYED_OP \
+ delayed_op = 2
+
+#define CHECK_UNHANDLED_BITS(mask) { \
+ if ((op & (mask)) != 0) \
+ goto default_; \
+}
+
+static void *sh2_translate(SH2 *sh2, block_desc *other_block)
{
+ void *block_entry;
+ block_desc *this_block;
unsigned int pc = sh2->pc;
- int op;
+ int op, delayed_op = 0, test_irq = 0;
+ int tcache_id = 0, blkid = 0;
+ int cycles = 0;
+ u32 tmp, tmp2;
+
+ // validate PC
+ tmp = sh2->pc >> 29;
+ if ((tmp != 0 && tmp != 1 && tmp != 6) || sh2->pc == 0) {
+ printf("invalid PC, aborting: %08x\n", sh2->pc);
+ // FIXME: be less destructive
+ exit(1);
+ }
+
+ if ((sh2->pc & 0xe0000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) {
+ // data_array, BIOS have separate tcache (shared)
+ tcache_id = 1 + sh2->is_slave;
+ }
+
+ tcache_ptr = tcache_ptrs[tcache_id];
+ this_block = dr_add_block(pc, tcache_id, &blkid);
+
+ tmp = tcache_ptr - tcache_bases[tcache_id];
+ if (tmp > tcache_sizes[tcache_id] - MAX_BLOCK_SIZE || this_block == NULL) {
+ flush_tcache(tcache_id);
+ tcache_ptr = tcache_ptrs[tcache_id];
+ other_block = NULL; // also gone too due to flush
+ this_block = dr_add_block(pc, tcache_id, &blkid);
+ }
+
+ this_block->next = other_block;
+ if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM
+ HASH_FUNC(hash_table, pc) = this_block;
+
+ block_entry = tcache_ptr;
+#if (DRC_DEBUG & 1)
+ printf("== %csh2 block #%d,%d %08x -> %p\n", sh2->is_slave ? 's' : 'm',
+ tcache_id, block_counts[tcache_id], pc, block_entry);
+ if (other_block != NULL) {
+ printf(" hash collision with %08x\n", other_block->addr);
+ hash_collisions++;
+ }
+#endif
+
+ while (cycles < BLOCK_CYCLE_LIMIT || delayed_op)
+ {
+ if (delayed_op > 0)
+ delayed_op--;
+
+ op = p32x_sh2_read16(pc, sh2);
+
+#if (DRC_DEBUG & 3)
+ insns_compiled++;
+#if (DRC_DEBUG & 2)
+ DasmSH2(sh2dasm_buff, pc, op);
+ printf("%08x %04x %s\n", pc, op, sh2dasm_buff);
+#endif
+#endif
+
+ pc += 2;
+ cycles++;
+
+ switch ((op >> 12) & 0x0f)
+ {
+ case 0x00:
+ switch (op & 0x0f) {
+ case 0x03:
+ CHECK_UNHANDLED_BITS(0xd0);
+ // BRAF Rm 0000mmmm00100011
+ // BSRF Rm 0000mmmm00000011
+ DELAYED_OP;
+ if (!(op & 0x20))
+ emit_move_r_imm32(SHR_PR, pc + 2);
+ tmp = rcache_get_reg(SHR_PPC, RC_GR_WRITE);
+ tmp2 = rcache_get_reg((op >> 8) & 0x0f, RC_GR_READ);
+ emith_move_r_r(tmp, tmp2);
+ emith_add_r_imm(tmp, pc + 2);
+ cycles++;
+ goto end_op;
+ case 0x09:
+ CHECK_UNHANDLED_BITS(0xf0);
+ // NOP 0000000000001001
+ goto end_op;
+ case 0x0b:
+ CHECK_UNHANDLED_BITS(0xd0);
+ DELAYED_OP;
+ if (!(op & 0x20)) {
+ // RTS 0000000000001011
+ emit_move_r_r(SHR_PPC, SHR_PR);
+ cycles++;
+ } else {
+ // RTE 0000000000101011
+ //emit_move_r_r(SHR_PC, SHR_PR);
+ emit_move_r_imm32(SHR_PC, pc - 2);
+ rcache_flush();
+ emith_pass_arg_r(0, CONTEXT_REG);
+ emith_pass_arg_imm(1, op);
+ emith_call(sh2_do_op);
+ emit_move_r_r(SHR_PPC, SHR_PC);
+ test_irq = 1;
+ cycles += 3;
+ }
+ goto end_op;
+ }
+ goto default_;
+
+ case 0x04:
+ switch (op & 0x0f) {
+ case 0x00:
+ if ((op & 0xf0) != 1)
+ goto default_;
+ // DT Rn 0100nnnn00010000
+ goto default_;
+ case 0x07:
+ if ((op & 0xf0) != 0)
+ goto default_;
+ // LDC.L @Rm+,SR 0100mmmm00000111
+ test_irq = 1;
+ goto default_;
+ case 0x0b:
+ if ((op & 0xd0) != 0)
+ goto default_;
+ // JMP @Rm 0100mmmm00101011
+ // JSR @Rm 0100mmmm00001011
+ DELAYED_OP;
+ if (!(op & 0x20))
+ emit_move_r_imm32(SHR_PR, pc + 2);
+ emit_move_r_r(SHR_PPC, (op >> 8) & 0x0f);
+ cycles++;
+ goto end_op;
+ case 0x0e:
+ if ((op & 0xf0) != 0)
+ goto default_;
+ // LDC Rm,SR 0100mmmm00001110
+ test_irq = 1;
+ goto default_;
+ }
+ goto default_;
+
+ case 0x08:
+ switch (op & 0x0f00) {
+ // BT/S label 10001101dddddddd
+ case 0x0d00:
+ // BF/S label 10001111dddddddd
+ case 0x0f00:
+ DELAYED_OP;
+ cycles--;
+ // fallthrough
+ // BT label 10001001dddddddd
+ case 0x0900:
+ // BF label 10001011dddddddd
+ case 0x0b00:
+ tmp = ((signed int)(op << 24) >> 23);
+ tmp2 = delayed_op ? SHR_PPC : SHR_PC;
+ emit_move_r_imm32(tmp2, pc + (delayed_op ? 2 : 0));
+ emith_test_t();
+ EMITH_CONDITIONAL(emit_move_r_imm32(tmp2, pc + tmp + 2), (op & 0x0200) ? 1 : 0);
+ cycles += 2;
+ if (!delayed_op)
+ goto end_block;
+ goto end_op;
+ }
+ goto default_;
+
+ case 0x0a:
+ // BRA label 1010dddddddddddd
+ DELAYED_OP;
+ do_bra:
+ tmp = ((signed int)(op << 20) >> 19);
+ emit_move_r_imm32(SHR_PPC, pc + tmp + 2);
+ cycles++;
+ break;
+
+ case 0x0b:
+ // BSR label 1011dddddddddddd
+ DELAYED_OP;
+ emit_move_r_imm32(SHR_PR, pc + 2);
+ goto do_bra;
+
+ default:
+ default_:
+ emit_move_r_imm32(SHR_PC, pc - 2);
+ rcache_flush();
+ emith_pass_arg_r(0, CONTEXT_REG);
+ emith_pass_arg_imm(1, op);
+ emith_call(sh2_do_op);
+ break;
+ }
+
+end_op:
+ if (delayed_op == 1)
+ emit_move_r_r(SHR_PC, SHR_PPC);
- op = p32x_sh2_read16(pc);
+ if (test_irq && delayed_op != 2) {
+ rcache_flush();
+ emith_pass_arg_r(0, CONTEXT_REG);
+ emith_call(sh2_test_irq);
+ break;
+ }
+ if (delayed_op == 1)
+ break;
+
+ do_host_disasm(tcache_id);
+ }
+
+end_block:
+ this_block->end_addr = pc;
+
+ // mark memory blocks as containing compiled code
+ if ((sh2->pc & 0xe0000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) {
+ // data array, BIOS
+ u16 *drcblk = Pico32xMem->drcblk_da[sh2->is_slave];
+ tmp = (this_block->addr & 0xfff) >> SH2_DRCBLK_DA_SHIFT;
+ tmp2 = (this_block->end_addr & 0xfff) >> SH2_DRCBLK_DA_SHIFT;
+ Pico32xMem->drcblk_da[sh2->is_slave][tmp] = (blkid << 1) | 1;
+ for (++tmp; tmp < tmp2; tmp++) {
+ if (drcblk[tmp])
+ break; // dont overwrite overlay block
+ drcblk[tmp] = blkid << 1;
+ }
+ }
+ else if ((this_block->addr & 0xc7fc0000) == 0x06000000) { // DRAM
+ tmp = (this_block->addr & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT;
+ tmp2 = (this_block->end_addr & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT;
+ Pico32xMem->drcblk_ram[tmp] = (blkid << 1) | 1;
+ for (++tmp; tmp < tmp2; tmp++) {
+ if (Pico32xMem->drcblk_ram[tmp])
+ break;
+ Pico32xMem->drcblk_ram[tmp] = blkid << 1;
+ }
+ }
+
+ tmp = rcache_get_reg(SHR_SR, RC_GR_RMW);
+ emith_sub_r_imm(tmp, cycles << 12);
+ rcache_flush();
+ emith_jump(sh2_drc_exit);
+ tcache_ptrs[tcache_id] = tcache_ptr;
+
+#ifdef ARM
+ cache_flush_d_inval_i(block_entry, tcache_ptr);
+#endif
+
+ do_host_disasm(tcache_id);
+ dbg(1, " block #%d,%d tcache %d/%d, insns %d -> %d %.3f",
+ tcache_id, block_counts[tcache_id],
+ tcache_ptr - tcache_bases[tcache_id], tcache_sizes[tcache_id],
+ insns_compiled, host_insn_count, (double)host_insn_count / insns_compiled);
+ if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM
+ dbg(1, " hash collisions %d/%d", hash_collisions, block_counts[tcache_id]);
+#if (DRC_DEBUG & 2)
+ fflush(stdout);
+#endif
+
+ return block_entry;
+/*
+unimplemented:
+ // last op
+ do_host_disasm(tcache_id);
+ exit(1);
+*/
}
+void __attribute__((noinline)) sh2_drc_dispatcher(SH2 *sh2)
+{
+ while (((signed int)sh2->sr >> 12) > 0)
+ {
+ void *block = NULL;
+ block_desc *bd = NULL;
+
+ // FIXME: must avoid doing it so often..
+ sh2_test_irq(sh2);
+
+ // we have full block id tables for data_array and RAM
+ // BIOS goes to data_array table too
+ if ((sh2->pc & 0xff000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) {
+ int blkid = Pico32xMem->drcblk_da[sh2->is_slave][(sh2->pc & 0xfff) >> SH2_DRCBLK_DA_SHIFT];
+ if (blkid & 1) {
+ bd = &block_tables[1 + sh2->is_slave][blkid >> 1];
+ block = bd->tcache_ptr;
+ }
+ }
+ // RAM
+ else if ((sh2->pc & 0xc6000000) == 0x06000000) {
+ int blkid = Pico32xMem->drcblk_ram[(sh2->pc & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT];
+ if (blkid & 1) {
+ bd = &block_tables[0][blkid >> 1];
+ block = bd->tcache_ptr;
+ }
+ }
+ // ROM
+ else if ((sh2->pc & 0xc6000000) == 0x02000000) {
+ bd = HASH_FUNC(hash_table, sh2->pc);
+
+ if (bd != NULL) {
+ if (bd->addr == sh2->pc)
+ block = bd->tcache_ptr;
+ else
+ block = dr_find_block(bd, sh2->pc);
+ }
+ }
+
+ if (block == NULL)
+ block = sh2_translate(sh2, bd);
+
+ dbg(4, "= %csh2 enter %08x %p, c=%d", sh2->is_slave ? 's' : 'm',
+ sh2->pc, block, (signed int)sh2->sr >> 12);
+#if (DRC_DEBUG & 1)
+ if (bd != NULL)
+ bd->refcount++;
+#endif
+ sh2_drc_entry(sh2, block);
+ }
+}
+
+static void sh2_smc_rm_block(u16 *drcblk, u16 *p, block_desc *btab, u32 a)
+{
+ u16 id = *p >> 1;
+ block_desc *bd = btab + id;
+
+ dbg(1, " killing block %08x", bd->addr);
+ bd->addr = bd->end_addr = 0;
+
+ while (p > drcblk && (p[-1] >> 1) == id)
+ p--;
+
+ // check for possible overlay block
+ if (p > 0 && p[-1] != 0) {
+ bd = btab + (p[-1] >> 1);
+ if (bd->addr <= a && a < bd->end_addr)
+ sh2_smc_rm_block(drcblk, p - 1, btab, a);
+ }
+
+ do {
+ *p++ = 0;
+ }
+ while ((*p >> 1) == id);
+}
+
+void sh2_drc_wcheck_ram(unsigned int a, int val, int cpuid)
+{
+ u16 *drcblk = Pico32xMem->drcblk_ram;
+ u16 *p = drcblk + ((a & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT);
+
+ dbg(1, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a);
+ sh2_smc_rm_block(drcblk, p, block_tables[0], a);
+}
+
+void sh2_drc_wcheck_da(unsigned int a, int val, int cpuid)
+{
+ u16 *drcblk = Pico32xMem->drcblk_da[cpuid];
+ u16 *p = drcblk + ((a & 0xfff) >> SH2_DRCBLK_DA_SHIFT);
+
+ dbg(1, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a);
+ sh2_smc_rm_block(drcblk, p, block_tables[1 + cpuid], a);
+}
+
+void sh2_execute(SH2 *sh2, int cycles)
+{
+ sh2->cycles_aim += cycles;
+ cycles = sh2->cycles_aim - sh2->cycles_done;
+
+ // cycles are kept in SHR_SR unused bits (upper 20)
+ sh2->sr &= 0x3f3;
+ sh2->sr |= cycles << 12;
+ sh2_drc_dispatcher(sh2);
+
+ sh2->cycles_done += cycles - ((signed int)sh2->sr >> 12);
+}
+
+static void REGPARM(1) sh2_test_irq(SH2 *sh2)
+{
+ if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
+ {
+ if (sh2->pending_irl > sh2->pending_int_irq)
+ sh2_do_irq(sh2, sh2->pending_irl, 64 + sh2->pending_irl/2);
+ else {
+ sh2_do_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector);
+ sh2->pending_int_irq = 0; // auto-clear
+ sh2->pending_level = sh2->pending_irl;
+ }
+ }
+}
+
+#if (DRC_DEBUG & 1)
+static void block_stats(void)
+{
+ int c, b, i, total = 0;
+
+ for (b = 0; b < ARRAY_SIZE(block_tables); b++)
+ for (i = 0; i < block_counts[b]; i++)
+ if (block_tables[b][i].addr != 0)
+ total += block_tables[b][i].refcount;
+
+ for (c = 0; c < 10; c++) {
+ block_desc *blk, *maxb = NULL;
+ int max = 0;
+ for (b = 0; b < ARRAY_SIZE(block_tables); b++) {
+ for (i = 0; i < block_counts[b]; i++) {
+ blk = &block_tables[b][i];
+ if (blk->addr != 0 && blk->refcount > max) {
+ max = blk->refcount;
+ maxb = blk;
+ }
+ }
+ }
+ if (maxb == NULL)
+ break;
+ printf("%08x %9d %2.3f%%\n", maxb->addr, maxb->refcount,
+ (double)maxb->refcount / total * 100.0);
+ maxb->refcount = 0;
+ }
+
+ for (b = 0; b < ARRAY_SIZE(block_tables); b++)
+ for (i = 0; i < block_counts[b]; i++)
+ block_tables[b][i].refcount = 0;
+}
+#else
+#define block_stats()
+#endif
+
+void sh2_drc_flush_all(void)
+{
+ block_stats();
+ flush_tcache(0);
+ flush_tcache(1);
+ flush_tcache(2);
+}
+
+int sh2_drc_init(SH2 *sh2)
+{
+ if (block_tables[0] == NULL) {
+ int i, cnt;
+
+ drc_cmn_init();
+
+ cnt = block_max_counts[0] + block_max_counts[1] + block_max_counts[2];
+ block_tables[0] = calloc(cnt, sizeof(*block_tables[0]));
+ if (block_tables[0] == NULL)
+ return -1;
+
+ memset(block_counts, 0, sizeof(block_counts));
+ tcache_bases[0] = tcache_ptrs[0] = tcache;
+
+ for (i = 1; i < ARRAY_SIZE(block_tables); i++) {
+ block_tables[i] = block_tables[i - 1] + block_max_counts[i - 1];
+ tcache_bases[i] = tcache_ptrs[i] = tcache_bases[i - 1] + tcache_sizes[i - 1];
+ }
+
+ // tmp
+ PicoOpt |= POPT_DIS_VDP_FIFO;
+
+#if (DRC_DEBUG & 2)
+ for (i = 0; i < ARRAY_SIZE(block_tables); i++)
+ tcache_dsm_ptrs[i] = tcache_bases[i];
+#endif
+#if (DRC_DEBUG & 1)
+ hash_collisions = 0;
+#endif
+ }
+
+ if (hash_table == NULL) {
+ hash_table = calloc(sizeof(hash_table[0]), MAX_HASH_ENTRIES);
+ if (hash_table == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+void sh2_drc_finish(SH2 *sh2)
+{
+ if (block_tables[0] != NULL) {
+ block_stats();
+ free(block_tables[0]);
+ memset(block_tables, 0, sizeof(block_tables));
+
+ drc_cmn_cleanup();
+ }
+
+ if (hash_table != NULL) {
+ free(hash_table);
+ hash_table = NULL;
+ }
+}
notaz.gp2x.de / picodrive.git / blobdiff