#define u32 unsigned int
-static u32 *block_table[0x5090/2];
-static u32 *block_table_iram[15][0x800/2];
static u32 *tcache_ptr = NULL;
static int nblocks = 0;
#ifndef ARM
#define DUMP_BLOCK 0x0c9a
-unsigned int tcache[512*1024];
+u32 *ssp_block_table[0x5090/2];
+u32 *ssp_block_table_iram[15][0x800/2];
+u32 tcache[SSP_TCACHE_SIZE/4];
void ssp_drc_next(void){}
void ssp_drc_next_patch(void){}
void ssp_drc_end(void){}
{
int i, ror = 0, reg;
int dirty = dirty_regb >> 8;
+ if ((dirty&7) == 7) {
+ emit_mov_const(A_COND_AL, 8, known_regs.r[0]|(known_regs.r[1]<<8)|(known_regs.r[2]<<16));
+ dirty &= ~7;
+ }
+ if ((dirty&0x70) == 0x70) {
+ emit_mov_const(A_COND_AL, 9, known_regs.r[4]|(known_regs.r[5]<<8)|(known_regs.r[6]<<16));
+ dirty &= ~0x70;
+ }
/* r0-r7 */
for (i = 0; dirty && i < 8; i++, dirty >>= 1)
{
hostreg_r[0] = hostreg_r[2] = -1;
}
+// check if AL is going to be used later in block
+static int tr_predict_al_need(void)
+{
+ int tmpv, tmpv2, op, pc = known_regs.gr[SSP_PC].h;
+
+ while (1)
+ {
+ op = PROGRAM(pc);
+ switch (op >> 9)
+ {
+ // ld d, s
+ case 0x00:
+ tmpv2 = (op >> 4) & 0xf; // dst
+ tmpv = op & 0xf; // src
+ if ((tmpv2 == SSP_A && tmpv == SSP_P) || tmpv2 == SSP_AL) // ld A, P; ld AL, *
+ return 0;
+ break;
+
+ // ld (ri), s
+ case 0x02:
+ // ld ri, s
+ case 0x0a:
+ // OP a, s
+ case 0x10: case 0x30: case 0x40: case 0x60: case 0x70:
+ tmpv = op & 0xf; // src
+ if (tmpv == SSP_AL) // OP *, AL
+ return 1;
+ break;
+
+ case 0x04:
+ case 0x06:
+ case 0x14:
+ case 0x34:
+ case 0x44:
+ case 0x64:
+ case 0x74: pc++; break;
+
+ // call cond, addr
+ case 0x24:
+ // bra cond, addr
+ case 0x26:
+ // mod cond, op
+ case 0x48:
+ // mpys?
+ case 0x1b:
+ // mpya (rj), (ri), b
+ case 0x4b: return 1;
+
+ // mld (rj), (ri), b
+ case 0x5b: return 0; // cleared anyway
+
+ // and A, *
+ case 0x50:
+ tmpv = op & 0xf; // src
+ if (tmpv == SSP_AL) return 1;
+ case 0x51: case 0x53: case 0x54: case 0x55: case 0x59: case 0x5c:
+ return 0;
+ }
+ pc++;
+ }
+}
+
+
/* get ARM cond which would mean that SSP cond is satisfied. No trash. */
static int tr_cond_check(int op)
{
static void tr_r0_to_A(int const_val)
{
- EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16
- EOP_MOV_REG_LSR(5, 5, 16); // mov r5, r5, lsr #16 @ AL
- EOP_ORR_REG_LSL(5, 5, 0, 16); // orr r5, r5, r0, lsl #16
+ if (tr_predict_al_need()) {
+ EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16
+ EOP_MOV_REG_LSR(5, 5, 16); // mov r5, r5, lsr #16 @ AL
+ EOP_ORR_REG_LSL(5, 5, 0, 16); // orr r5, r5, r0, lsl #16
+ }
+ else
+ EOP_MOV_REG_LSL(5, 0, 16);
TR_WRITE_R0_TO_REG(SSP_A);
}
ret = tr_detect_rotate(op, pc, imm);
if (ret > 0) break;
if (tmpv != 0)
- tr_rX_read(r, mod);
- else tr_ptrr_mod(r, mod, 1, 1);
+ tr_rX_read(r, mod);
+ else {
+ int cnt = 1;
+ while (PROGRAM(*pc) == op) {
+ (*pc)++; cnt++; ret++;
+ n_in_ops++;
+ }
+ tr_ptrr_mod(r, mod, 1, cnt); // skip
+ }
tr_write_funcs[tmpv](-1);
if (tmpv == SSP_PC) {
ret |= 0x10000;
emit_jump(A_COND_AL, ssp_drc_next);
}
else if (cond == A_COND_AL) {
- u32 *target = (pc < 0x400) ? block_table_iram[ssp->drc.iram_context][pc] : block_table[pc];
+ u32 *target = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc];
if (target != NULL)
emit_jump(A_COND_AL, target);
else {
}
}
else {
- u32 *target1 = (pc < 0x400) ? block_table_iram[ssp->drc.iram_context][pc] : block_table[pc];
- u32 *target2 = (end_pc < 0x400) ? block_table_iram[ssp->drc.iram_context][end_pc] : block_table[end_pc];
+ u32 *target1 = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc];
+ u32 *target2 = (end_pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][end_pc] : ssp_block_table[end_pc];
if (target1 != NULL)
emit_jump(cond, target1);
else emit_call(cond, ssp_drc_next_patch);
tr_flush_dirty_pmcrs();
emit_block_epilogue(ccount, end_cond, jump_pc, pc);
- if (tcache_ptr - tcache > TCACHE_SIZE/4) {
+ if (tcache_ptr - tcache > SSP_TCACHE_SIZE/4) {
printf("tcache overflow!\n");
fflush(stdout);
exit(1);
int ssp1601_dyn_startup(void)
{
- memset(tcache, 0, TCACHE_SIZE);
- memset(block_table, 0, sizeof(block_table));
- memset(block_table_iram, 0, sizeof(block_table_iram));
+ memset(tcache, 0, SSP_TCACHE_SIZE);
+ memset(ssp_block_table, 0, sizeof(ssp_block_table));
+ memset(ssp_block_table_iram, 0, sizeof(ssp_block_table_iram));
tcache_ptr = tcache;
PicoLoadStateHook = ssp1601_state_load;
n_in_ops = 0;
#ifdef ARM
// hle'd blocks
- block_table[0x800/2] = (void *) ssp_hle_800;
- block_table[0x902/2] = (void *) ssp_hle_902;
- block_table_iram[ 7][0x030/2] = (void *) ssp_hle_07_030;
- block_table_iram[ 7][0x036/2] = (void *) ssp_hle_07_036;
- block_table_iram[ 7][0x6d6/2] = (void *) ssp_hle_07_6d6;
- block_table_iram[11][0x12c/2] = (void *) ssp_hle_11_12c;
- block_table_iram[11][0x384/2] = (void *) ssp_hle_11_384;
- block_table_iram[11][0x38a/2] = (void *) ssp_hle_11_38a;
+ ssp_block_table[0x800/2] = (void *) ssp_hle_800;
+ ssp_block_table[0x902/2] = (void *) ssp_hle_902;
+ ssp_block_table_iram[ 7][0x030/2] = (void *) ssp_hle_07_030;
+ ssp_block_table_iram[ 7][0x036/2] = (void *) ssp_hle_07_036;
+ ssp_block_table_iram[ 7][0x6d6/2] = (void *) ssp_hle_07_6d6;
+ ssp_block_table_iram[11][0x12c/2] = (void *) ssp_hle_11_12c;
+ ssp_block_table_iram[11][0x384/2] = (void *) ssp_hle_11_384;
+ ssp_block_table_iram[11][0x38a/2] = (void *) ssp_hle_11_38a;
#endif
return 0;
fclose(f);
for (i = 0; i < 0x5090/2; i++)
- if (block_table[i])
- printf("%06x -> __:%04x\n", (block_table[i] - tcache)*4, i<<1);
+ if (ssp_block_table[i])
+ printf("%06x -> __:%04x\n", (ssp_block_table[i] - tcache)*4, i<<1);
for (u = 1; u < 15; u++)
for (i = 0; i < 0x800/2; i++)
- if (block_table_iram[u][i])
- printf("%06x -> %02i:%04x\n", (block_table_iram[u][i] - tcache)*4, u, i<<1);
+ if (ssp_block_table_iram[u][i])
+ printf("%06x -> %02i:%04x\n", (ssp_block_table_iram[u][i] - tcache)*4, u, i<<1);
}
ssp1601_reset(ssp);
ssp->drc.ptr_rom = (u32) Pico.rom;
ssp->drc.ptr_iram_rom = (u32) svp->iram_rom;
ssp->drc.ptr_dram = (u32) svp->dram;
- ssp->drc.ptr_btable = (u32) block_table;
- ssp->drc.ptr_btable_iram = (u32) block_table_iram;
+ ssp->drc.ptr_btable = (u32) ssp_block_table;
+ ssp->drc.ptr_btable_iram = (u32) ssp_block_table_iram;
// prevent new versions of IRAM from appearing
memset(svp->iram_rom, 0, 0x800);
notaz.gp2x.de / picodrive.git / blobdiff