X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=deps%2Flightrec%2Femitter.c;h=270fd48a420b0d148d225703098c6f58f1469ca4;hb=c0c162422385a60ea7c8fa1dfe439e83e0a13d88;hp=fd2893560962ab0f3d8da6308767b118546e49c8;hpb=437b1e617808119c3a24a72c77cd2fa86a5d3220;p=pcsx_rearmed.git

diff --git a/deps/lightrec/emitter.c b/deps/lightrec/emitter.c
index fd289356..270fd48a 100644
--- a/deps/lightrec/emitter.c
+++ b/deps/lightrec/emitter.c
@@ -29,16 +29,25 @@ static void unknown_opcode(struct lightrec_cstate *state, const struct block *bl
 		block->pc + (offset << 2));
 }
 
+static void
+lightrec_jump_to_eob(struct lightrec_cstate *state, jit_state_t *_jit)
+{
+	/* Prevent jit_jmpi() from using our cycles register as a temporary */
+	jit_live(LIGHTREC_REG_CYCLE);
+
+	jit_patch_abs(jit_jmpi(), state->state->eob_wrapper_func);
+}
+
 static void lightrec_emit_end_of_block(struct lightrec_cstate *state,
 				       const struct block *block, u16 offset,
 				       s8 reg_new_pc, u32 imm, u8 ra_reg,
 				       u32 link, bool update_cycles)
 {
 	struct regcache *reg_cache = state->reg_cache;
-	u32 cycles = state->cycles;
 	jit_state_t *_jit = block->_jit;
 	const struct opcode *op = &block->opcode_list[offset],
 			    *next = &block->opcode_list[offset + 1];
+	u32 cycles = state->cycles + lightrec_cycles_of_opcode(op->c);
 
 	jit_note(__FILE__, __LINE__);
 
@@ -57,7 +66,7 @@ static void lightrec_emit_end_of_block(struct lightrec_cstate *state,
 	}
 
 	if (has_delay_slot(op->c) &&
-	    !(op->flags & (LIGHTREC_NO_DS | LIGHTREC_LOCAL_BRANCH))) {
+	    !op_flag_no_ds(op->flags) && !op_flag_local_branch(op->flags)) {
 		cycles += lightrec_cycles_of_opcode(next->c);
 
 		/* Recompile the delay slot */
@@ -65,8 +74,8 @@ static void lightrec_emit_end_of_block(struct lightrec_cstate *state,
 			lightrec_rec_opcode(state, block, offset + 1);
 	}
 
-	/* Store back remaining registers */
-	lightrec_storeback_regs(reg_cache, _jit);
+	/* Clean the remaining registers */
+	lightrec_clean_regs(reg_cache, _jit);
 
 	jit_movr(JIT_V0, reg_new_pc);
 
@@ -75,8 +84,7 @@ static void lightrec_emit_end_of_block(struct lightrec_cstate *state,
 		pr_debug("EOB: %u cycles\n", cycles);
 	}
 
-	if (offset + !!(op->flags & LIGHTREC_NO_DS) < block->nb_ops - 1)
-		state->branches[state->nb_branches++] = jit_b();
+	lightrec_jump_to_eob(state, _jit);
 }
 
 void lightrec_emit_eob(struct lightrec_cstate *state, const struct block *block,
@@ -87,15 +95,15 @@ void lightrec_emit_eob(struct lightrec_cstate *state, const struct block *block,
 	union code c = block->opcode_list[offset].c;
 	u32 cycles = state->cycles;
 
-	if (!after_op)
-		cycles -= lightrec_cycles_of_opcode(c);
+	if (after_op)
+		cycles += lightrec_cycles_of_opcode(c);
 
-	lightrec_storeback_regs(reg_cache, _jit);
+	lightrec_clean_regs(reg_cache, _jit);
 
 	jit_movi(JIT_V0, block->pc + (offset << 2));
 	jit_subi(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, cycles);
 
-	state->branches[state->nb_branches++] = jit_b();
+	lightrec_jump_to_eob(state, _jit);
 }
 
 static u8 get_jr_jalr_reg(struct lightrec_cstate *state, const struct block *block, u16 offset)
@@ -149,8 +157,45 @@ static void rec_JAL(struct lightrec_cstate *state, const struct block *block, u1
 				   31, get_branch_pc(block, offset, 2), true);
 }
 
+static void lightrec_do_early_unload(struct lightrec_cstate *state,
+				     const struct block *block, u16 offset)
+{
+	struct regcache *reg_cache = state->reg_cache;
+	const struct opcode *op = &block->opcode_list[offset];
+	jit_state_t *_jit = block->_jit;
+	unsigned int i;
+	u8 reg;
+	struct {
+		u8 reg, op;
+	} reg_ops[3] = {
+		{ op->r.rd, LIGHTREC_FLAGS_GET_RD(op->flags), },
+		{ op->i.rt, LIGHTREC_FLAGS_GET_RT(op->flags), },
+		{ op->i.rs, LIGHTREC_FLAGS_GET_RS(op->flags), },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(reg_ops); i++) {
+		reg = reg_ops[i].reg;
+
+		switch (reg_ops[i].op) {
+		case LIGHTREC_REG_UNLOAD:
+			lightrec_clean_reg_if_loaded(reg_cache, _jit, reg, true);
+			break;
+
+		case LIGHTREC_REG_DISCARD:
+			lightrec_discard_reg_if_loaded(reg_cache, reg);
+			break;
+
+		case LIGHTREC_REG_CLEAN:
+			lightrec_clean_reg_if_loaded(reg_cache, _jit, reg, false);
+			break;
+		default:
+			break;
+		};
+	}
+}
+
 static void rec_b(struct lightrec_cstate *state, const struct block *block, u16 offset,
-		  jit_code_t code, u32 link, bool unconditional, bool bz)
+		  jit_code_t code, jit_code_t code2, u32 link, bool unconditional, bool bz)
 {
 	struct regcache *reg_cache = state->reg_cache;
 	struct native_register *regs_backup;
@@ -159,39 +204,54 @@ static void rec_b(struct lightrec_cstate *state, const struct block *block, u16
 	const struct opcode *op = &block->opcode_list[offset],
 			    *next = &block->opcode_list[offset + 1];
 	jit_node_t *addr;
-	u8 link_reg;
-	u32 target_offset, cycles = state->cycles;
+	u8 link_reg, rs, rt;
 	bool is_forward = (s16)op->i.imm >= -1;
+	int op_cycles = lightrec_cycles_of_opcode(op->c);
+	u32 target_offset, cycles = state->cycles + op_cycles;
+	bool no_indirection = false;
 	u32 next_pc;
 
 	jit_note(__FILE__, __LINE__);
 
-	if (!(op->flags & LIGHTREC_NO_DS))
+	if (!op_flag_no_ds(op->flags))
 		cycles += lightrec_cycles_of_opcode(next->c);
 
-	state->cycles = 0;
+	state->cycles = -op_cycles;
+
+	if (!unconditional) {
+		rs = lightrec_alloc_reg_in(reg_cache, _jit, op->i.rs, REG_EXT);
+		rt = bz ? 0 : lightrec_alloc_reg_in(reg_cache,
+						    _jit, op->i.rt, REG_EXT);
+
+		/* Unload dead registers before evaluating the branch */
+		if (OPT_EARLY_UNLOAD)
+			lightrec_do_early_unload(state, block, offset);
+
+		if (op_flag_local_branch(op->flags) &&
+		    (op_flag_no_ds(op->flags) || !next->opcode) &&
+		    is_forward && !lightrec_has_dirty_regs(reg_cache))
+			no_indirection = true;
+
+		if (no_indirection)
+			pr_debug("Using no indirection for branch at offset 0x%hx\n", offset << 2);
+	}
 
 	if (cycles)
 		jit_subi(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, cycles);
 
 	if (!unconditional) {
-		u8 rs = lightrec_alloc_reg_in(reg_cache, _jit, op->i.rs, REG_EXT),
-		   rt = bz ? 0 : lightrec_alloc_reg_in(reg_cache,
-						       _jit, op->i.rt, REG_EXT);
-
 		/* Generate the branch opcode */
-		addr = jit_new_node_pww(code, NULL, rs, rt);
+		if (!no_indirection)
+			addr = jit_new_node_pww(code, NULL, rs, rt);
 
 		lightrec_free_regs(reg_cache);
 		regs_backup = lightrec_regcache_enter_branch(reg_cache);
 	}
 
-	if (op->flags & LIGHTREC_LOCAL_BRANCH) {
-		if (next && !(op->flags & LIGHTREC_NO_DS)) {
-			/* Recompile the delay slot */
-			if (next->opcode)
-				lightrec_rec_opcode(state, block, offset + 1);
-		}
+	if (op_flag_local_branch(op->flags)) {
+		/* Recompile the delay slot */
+		if (next && next->opcode && !op_flag_no_ds(op->flags))
+			lightrec_rec_opcode(state, block, offset + 1);
 
 		if (link) {
 			/* Update the $ra register */
@@ -200,31 +260,36 @@ static void rec_b(struct lightrec_cstate *state, const struct block *block, u16
 			lightrec_free_reg(reg_cache, link_reg);
 		}
 
-		/* Store back remaining registers */
-		lightrec_storeback_regs(reg_cache, _jit);
+		/* Clean remaining registers */
+		lightrec_clean_regs(reg_cache, _jit);
 
 		target_offset = offset + 1 + (s16)op->i.imm
-			- !!(OPT_SWITCH_DELAY_SLOTS && (op->flags & LIGHTREC_NO_DS));
+			- !!op_flag_no_ds(op->flags);
 		pr_debug("Adding local branch to offset 0x%x\n",
 			 target_offset << 2);
 		branch = &state->local_branches[
 			state->nb_local_branches++];
 
 		branch->target = target_offset;
-		if (is_forward)
+
+		if (no_indirection)
+			branch->branch = jit_new_node_pww(code2, NULL, rs, rt);
+		else if (is_forward)
 			branch->branch = jit_b();
 		else
 			branch->branch = jit_bgti(LIGHTREC_REG_CYCLE, 0);
 	}
 
-	if (!(op->flags & LIGHTREC_LOCAL_BRANCH) || !is_forward) {
+	if (!op_flag_local_branch(op->flags) || !is_forward) {
 		next_pc = get_branch_pc(block, offset, 1 + (s16)op->i.imm);
 		lightrec_emit_end_of_block(state, block, offset, -1, next_pc,
 					   31, link, false);
 	}
 
 	if (!unconditional) {
-		jit_patch(addr);
+		if (!no_indirection)
+			jit_patch(addr);
+
 		lightrec_regcache_leave_branch(reg_cache, regs_backup);
 
 		if (bz && link) {
@@ -235,7 +300,7 @@ static void rec_b(struct lightrec_cstate *state, const struct block *block, u16
 			lightrec_free_reg(reg_cache, link_reg);
 		}
 
-		if (!(op->flags & LIGHTREC_NO_DS) && next->opcode)
+		if (!op_flag_no_ds(op->flags) && next->opcode)
 			lightrec_rec_opcode(state, block, offset + 1);
 	}
 }
@@ -248,9 +313,9 @@ static void rec_BNE(struct lightrec_cstate *state,
 	_jit_name(block->_jit, __func__);
 
 	if (c.i.rt == 0)
-		rec_b(state, block, offset, jit_code_beqi, 0, false, true);
+		rec_b(state, block, offset, jit_code_beqi, jit_code_bnei, 0, false, true);
 	else
-		rec_b(state, block, offset, jit_code_beqr, 0, false, false);
+		rec_b(state, block, offset, jit_code_beqr, jit_code_bner, 0, false, false);
 }
 
 static void rec_BEQ(struct lightrec_cstate *state,
@@ -261,9 +326,9 @@ static void rec_BEQ(struct lightrec_cstate *state,
 	_jit_name(block->_jit, __func__);
 
 	if (c.i.rt == 0)
-		rec_b(state, block, offset, jit_code_bnei, 0, c.i.rs == 0, true);
+		rec_b(state, block, offset, jit_code_bnei, jit_code_beqi, 0, c.i.rs == 0, true);
 	else
-		rec_b(state, block, offset, jit_code_bner, 0, c.i.rs == c.i.rt, false);
+		rec_b(state, block, offset, jit_code_bner, jit_code_beqr, 0, c.i.rs == c.i.rt, false);
 }
 
 static void rec_BLEZ(struct lightrec_cstate *state,
@@ -272,28 +337,28 @@ static void rec_BLEZ(struct lightrec_cstate *state,
 	union code c = block->opcode_list[offset].c;
 
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_bgti, 0, c.i.rs == 0, true);
+	rec_b(state, block, offset, jit_code_bgti, jit_code_blei, 0, c.i.rs == 0, true);
 }
 
 static void rec_BGTZ(struct lightrec_cstate *state,
 		     const struct block *block, u16 offset)
 {
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_blei, 0, false, true);
+	rec_b(state, block, offset, jit_code_blei, jit_code_bgti, 0, false, true);
 }
 
 static void rec_regimm_BLTZ(struct lightrec_cstate *state,
 			    const struct block *block, u16 offset)
 {
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_bgei, 0, false, true);
+	rec_b(state, block, offset, jit_code_bgei, jit_code_blti, 0, false, true);
 }
 
 static void rec_regimm_BLTZAL(struct lightrec_cstate *state,
 			      const struct block *block, u16 offset)
 {
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_bgei,
+	rec_b(state, block, offset, jit_code_bgei, jit_code_blti,
 	      get_branch_pc(block, offset, 2), false, true);
 }
 
@@ -303,7 +368,7 @@ static void rec_regimm_BGEZ(struct lightrec_cstate *state,
 	union code c = block->opcode_list[offset].c;
 
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_blti, 0, !c.i.rs, true);
+	rec_b(state, block, offset, jit_code_blti, jit_code_bgei, 0, !c.i.rs, true);
 }
 
 static void rec_regimm_BGEZAL(struct lightrec_cstate *state,
@@ -311,7 +376,7 @@ static void rec_regimm_BGEZAL(struct lightrec_cstate *state,
 {
 	const struct opcode *op = &block->opcode_list[offset];
 	_jit_name(block->_jit, __func__);
-	rec_b(state, block, offset, jit_code_blti,
+	rec_b(state, block, offset, jit_code_blti, jit_code_bgei,
 	      get_branch_pc(block, offset, 2),
 	      !op->i.rs, true);
 }
@@ -614,10 +679,8 @@ static void rec_special_or_nor(struct lightrec_cstate *state,
 	if (!nor)
 		flags_rd = REG_ZEXT & flags_rs & flags_rt;
 
-	/* E(rd) = (E(rs) & E(rt)) | (E(rt) & !Z(rt)) | (E(rs) & !Z(rs)) */
-	if ((REG_EXT & flags_rs & flags_rt) ||
-	    (flags_rt & (REG_EXT | REG_ZEXT) == REG_EXT) ||
-	    (flags_rs & (REG_EXT | REG_ZEXT) == REG_EXT))
+	/* E(rd) = E(rs) & E(rt) */
+	if (REG_EXT & flags_rs & flags_rt)
 		flags_rd |= REG_EXT;
 
 	lightrec_set_reg_out_flags(reg_cache, rd, flags_rd);
@@ -769,7 +832,7 @@ static void rec_alu_mult(struct lightrec_cstate *state,
 {
 	struct regcache *reg_cache = state->reg_cache;
 	union code c = block->opcode_list[offset].c;
-	u16 flags = block->opcode_list[offset].flags;
+	u32 flags = block->opcode_list[offset].flags;
 	u8 reg_lo = get_mult_div_lo(c);
 	u8 reg_hi = get_mult_div_hi(c);
 	jit_state_t *_jit = block->_jit;
@@ -785,18 +848,18 @@ static void rec_alu_mult(struct lightrec_cstate *state,
 	rs = lightrec_alloc_reg_in(reg_cache, _jit, c.r.rs, rflags);
 	rt = lightrec_alloc_reg_in(reg_cache, _jit, c.r.rt, rflags);
 
-	if (!(flags & LIGHTREC_NO_LO))
+	if (!op_flag_no_lo(flags))
 		lo = lightrec_alloc_reg_out(reg_cache, _jit, reg_lo, 0);
 	else if (__WORDSIZE == 32)
 		lo = lightrec_alloc_reg_temp(reg_cache, _jit);
 
-	if (!(flags & LIGHTREC_NO_HI))
+	if (!op_flag_no_hi(flags))
 		hi = lightrec_alloc_reg_out(reg_cache, _jit, reg_hi, REG_EXT);
 
 	if (__WORDSIZE == 32) {
 		/* On 32-bit systems, do a 32*32->64 bit operation, or a 32*32->32 bit
 		 * operation if the MULT was detected a 32-bit only. */
-		if (!(flags & LIGHTREC_NO_HI)) {
+		if (!op_flag_no_hi(flags)) {
 			if (is_signed)
 				jit_qmulr(lo, hi, rs, rt);
 			else
@@ -806,23 +869,23 @@ static void rec_alu_mult(struct lightrec_cstate *state,
 		}
 	} else {
 		/* On 64-bit systems, do a 64*64->64 bit operation. */
-		if (flags & LIGHTREC_NO_LO) {
+		if (op_flag_no_lo(flags)) {
 			jit_mulr(hi, rs, rt);
 			jit_rshi(hi, hi, 32);
 		} else {
 			jit_mulr(lo, rs, rt);
 
 			/* The 64-bit output value is in $lo, store the upper 32 bits in $hi */
-			if (!(flags & LIGHTREC_NO_HI))
+			if (!op_flag_no_hi(flags))
 				jit_rshi(hi, lo, 32);
 		}
 	}
 
 	lightrec_free_reg(reg_cache, rs);
 	lightrec_free_reg(reg_cache, rt);
-	if (!(flags & LIGHTREC_NO_LO) || __WORDSIZE == 32)
+	if (!op_flag_no_lo(flags) || __WORDSIZE == 32)
 		lightrec_free_reg(reg_cache, lo);
-	if (!(flags & LIGHTREC_NO_HI))
+	if (!op_flag_no_hi(flags))
 		lightrec_free_reg(reg_cache, hi);
 }
 
@@ -831,8 +894,8 @@ static void rec_alu_div(struct lightrec_cstate *state,
 {
 	struct regcache *reg_cache = state->reg_cache;
 	union code c = block->opcode_list[offset].c;
-	u16 flags = block->opcode_list[offset].flags;
-	bool no_check = flags & LIGHTREC_NO_DIV_CHECK;
+	u32 flags = block->opcode_list[offset].flags;
+	bool no_check = op_flag_no_div_check(flags);
 	u8 reg_lo = get_mult_div_lo(c);
 	u8 reg_hi = get_mult_div_hi(c);
 	jit_state_t *_jit = block->_jit;
@@ -849,22 +912,22 @@ static void rec_alu_div(struct lightrec_cstate *state,
 	rs = lightrec_alloc_reg_in(reg_cache, _jit, c.r.rs, rflags);
 	rt = lightrec_alloc_reg_in(reg_cache, _jit, c.r.rt, rflags);
 
-	if (!(flags & LIGHTREC_NO_LO))
+	if (!op_flag_no_lo(flags))
 		lo = lightrec_alloc_reg_out(reg_cache, _jit, reg_lo, 0);
 
-	if (!(flags & LIGHTREC_NO_HI))
+	if (!op_flag_no_hi(flags))
 		hi = lightrec_alloc_reg_out(reg_cache, _jit, reg_hi, 0);
 
 	/* Jump to special handler if dividing by zero  */
 	if (!no_check)
 		branch = jit_beqi(rt, 0);
 
-	if (flags & LIGHTREC_NO_LO) {
+	if (op_flag_no_lo(flags)) {
 		if (is_signed)
 			jit_remr(hi, rs, rt);
 		else
 			jit_remr_u(hi, rs, rt);
-	} else if (flags & LIGHTREC_NO_HI) {
+	} else if (op_flag_no_hi(flags)) {
 		if (is_signed)
 			jit_divr(lo, rs, rt);
 		else
@@ -882,7 +945,7 @@ static void rec_alu_div(struct lightrec_cstate *state,
 
 		jit_patch(branch);
 
-		if (!(flags & LIGHTREC_NO_LO)) {
+		if (!op_flag_no_lo(flags)) {
 			if (is_signed) {
 				jit_lti(lo, rs, 0);
 				jit_lshi(lo, lo, 1);
@@ -892,7 +955,7 @@ static void rec_alu_div(struct lightrec_cstate *state,
 			}
 		}
 
-		if (!(flags & LIGHTREC_NO_HI))
+		if (!op_flag_no_hi(flags))
 			jit_movr(hi, rs);
 
 		jit_patch(to_end);
@@ -901,10 +964,10 @@ static void rec_alu_div(struct lightrec_cstate *state,
 	lightrec_free_reg(reg_cache, rs);
 	lightrec_free_reg(reg_cache, rt);
 
-	if (!(flags & LIGHTREC_NO_LO))
+	if (!op_flag_no_lo(flags))
 		lightrec_free_reg(reg_cache, lo);
 
-	if (!(flags & LIGHTREC_NO_HI))
+	if (!op_flag_no_hi(flags))
 		lightrec_free_reg(reg_cache, hi);
 }
 
@@ -988,27 +1051,41 @@ static void rec_special_MTLO(struct lightrec_cstate *state,
 	rec_alu_mv_lo_hi(state, block, REG_LO, c.r.rs);
 }
 
-static void call_to_c_wrapper(struct lightrec_cstate *state, const struct block *block,
-			      u32 arg, bool with_arg, enum c_wrappers wrapper)
+static void call_to_c_wrapper(struct lightrec_cstate *state,
+			      const struct block *block, u32 arg,
+			      enum c_wrappers wrapper)
 {
 	struct regcache *reg_cache = state->reg_cache;
 	jit_state_t *_jit = block->_jit;
-	u8 tmp, tmp2;
-
-	tmp = lightrec_alloc_reg_temp(reg_cache, _jit);
-	jit_ldxi(tmp, LIGHTREC_REG_STATE,
-		 offsetof(struct lightrec_state, wrappers_eps[wrapper]));
+	s8 tmp, tmp2;
 
-	if (with_arg) {
-		tmp2 = lightrec_alloc_reg_temp(reg_cache, _jit);
-		jit_movi(tmp2, arg);
+	/* Make sure JIT_R1 is not mapped; it will be used in the C wrapper. */
+	tmp2 = lightrec_alloc_reg(reg_cache, _jit, JIT_R1);
 
-		jit_stxi_i(offsetof(struct lightrec_state, c_wrapper_arg),
-			   LIGHTREC_REG_STATE, tmp2);
+	tmp = lightrec_get_reg_with_value(reg_cache,
+					  (intptr_t) state->state->wrappers_eps[wrapper]);
+	if (tmp < 0) {
+		tmp = lightrec_alloc_reg_temp(reg_cache, _jit);
+		jit_ldxi(tmp, LIGHTREC_REG_STATE,
+			 offsetof(struct lightrec_state, wrappers_eps[wrapper]));
 
-		lightrec_free_reg(reg_cache, tmp2);
+		lightrec_temp_set_value(reg_cache, tmp,
+					(intptr_t) state->state->wrappers_eps[wrapper]);
 	}
 
+	lightrec_free_reg(reg_cache, tmp2);
+
+#ifdef __mips__
+	/* On MIPS, register t9 is always used as the target register for JALR.
+	 * Therefore if it does not contain the target address we must
+	 * invalidate it. */
+	if (tmp != _T9)
+		lightrec_unload_reg(reg_cache, _jit, _T9);
+#endif
+
+	jit_prepare();
+	jit_pushargi(arg);
+
 	lightrec_regcache_mark_live(reg_cache, _jit);
 	jit_callr(tmp);
 
@@ -1023,7 +1100,7 @@ static void rec_io(struct lightrec_cstate *state,
 	struct regcache *reg_cache = state->reg_cache;
 	jit_state_t *_jit = block->_jit;
 	union code c = block->opcode_list[offset].c;
-	u16 flags = block->opcode_list[offset].flags;
+	u32 flags = block->opcode_list[offset].flags;
 	bool is_tagged = LIGHTREC_FLAGS_GET_IO_MODE(flags);
 	u32 lut_entry;
 
@@ -1037,11 +1114,11 @@ static void rec_io(struct lightrec_cstate *state,
 		lightrec_clean_reg_if_loaded(reg_cache, _jit, c.i.rt, false);
 
 	if (is_tagged) {
-		call_to_c_wrapper(state, block, c.opcode, true, C_WRAPPER_RW);
+		call_to_c_wrapper(state, block, c.opcode, C_WRAPPER_RW);
 	} else {
 		lut_entry = lightrec_get_lut_entry(block);
 		call_to_c_wrapper(state, block, (lut_entry << 16) | offset,
-				  true, C_WRAPPER_RW_GENERIC);
+				  C_WRAPPER_RW_GENERIC);
 	}
 }
 
@@ -1066,12 +1143,11 @@ static void rec_store_memory(struct lightrec_cstate *cstate,
 	s16 imm = (s16)c.i.imm;
 	s32 simm = (s32)imm << (1 - lut_is_32bit(state));
 	s32 lut_offt = offsetof(struct lightrec_state, code_lut);
-	bool no_mask = op->flags & LIGHTREC_NO_MASK;
+	bool no_mask = op_flag_no_mask(op->flags);
 	bool add_imm = c.i.imm &&
 		((!state->mirrors_mapped && !no_mask) || (invalidate &&
 		((imm & 0x3) || simm + lut_offt != (s16)(simm + lut_offt))));
-	bool need_tmp = !no_mask || addr_offset || add_imm;
-	bool need_tmp2 = addr_offset || invalidate;
+	bool need_tmp = !no_mask || addr_offset || add_imm || invalidate;
 
 	rt = lightrec_alloc_reg_in(reg_cache, _jit, c.i.rt, 0);
 	rs = lightrec_alloc_reg_in(reg_cache, _jit, c.i.rs, 0);
@@ -1093,10 +1169,8 @@ static void rec_store_memory(struct lightrec_cstate *cstate,
 		addr_reg = tmp;
 	}
 
-	if (need_tmp2)
-		tmp2 = lightrec_alloc_reg_temp(reg_cache, _jit);
-
 	if (addr_offset) {
+		tmp2 = lightrec_alloc_reg_temp(reg_cache, _jit);
 		jit_addi(tmp2, addr_reg, addr_offset);
 		addr_reg2 = tmp2;
 	} else {
@@ -1120,20 +1194,20 @@ static void rec_store_memory(struct lightrec_cstate *cstate,
 		tmp3 = lightrec_alloc_reg_in(reg_cache, _jit, 0, 0);
 
 		if (c.i.op != OP_SW) {
-			jit_andi(tmp2, addr_reg, ~3);
-			addr_reg = tmp2;
+			jit_andi(tmp, addr_reg, ~3);
+			addr_reg = tmp;
 		}
 
 		if (!lut_is_32bit(state)) {
-			jit_lshi(tmp2, addr_reg, 1);
-			addr_reg = tmp2;
+			jit_lshi(tmp, addr_reg, 1);
+			addr_reg = tmp;
 		}
 
 		if (addr_reg == rs && c.i.rs == 0) {
 			addr_reg = LIGHTREC_REG_STATE;
 		} else {
-			jit_addr(tmp2, addr_reg, LIGHTREC_REG_STATE);
-			addr_reg = tmp2;
+			jit_addr(tmp, addr_reg, LIGHTREC_REG_STATE);
+			addr_reg = tmp;
 		}
 
 		if (lut_is_32bit(state))
@@ -1144,7 +1218,7 @@ static void rec_store_memory(struct lightrec_cstate *cstate,
 		lightrec_free_reg(reg_cache, tmp3);
 	}
 
-	if (need_tmp2)
+	if (addr_offset)
 		lightrec_free_reg(reg_cache, tmp2);
 	if (need_tmp)
 		lightrec_free_reg(reg_cache, tmp);
@@ -1176,6 +1250,17 @@ static void rec_store_scratch(struct lightrec_cstate *cstate,
 				0x1fffffff, false);
 }
 
+static void rec_store_io(struct lightrec_cstate *cstate,
+			 const struct block *block, u16 offset,
+			 jit_code_t code, jit_code_t swap_code)
+{
+	_jit_note(block->_jit, __FILE__, __LINE__);
+
+	return rec_store_memory(cstate, block, offset, code, swap_code,
+				cstate->state->offset_io,
+				0x1fffffff, false);
+}
+
 static void rec_store_direct_no_invalidate(struct lightrec_cstate *cstate,
 					   const struct block *block,
 					   u16 offset, jit_code_t code,
@@ -1330,8 +1415,8 @@ static void rec_store(struct lightrec_cstate *state,
 		      const struct block *block, u16 offset,
 		      jit_code_t code, jit_code_t swap_code)
 {
-	u16 flags = block->opcode_list[offset].flags;
-	bool no_invalidate = (flags & LIGHTREC_NO_INVALIDATE) ||
+	u32 flags = block->opcode_list[offset].flags;
+	bool no_invalidate = op_flag_no_invalidate(flags) ||
 		state->state->invalidate_from_dma_only;
 
 	switch (LIGHTREC_FLAGS_GET_IO_MODE(flags)) {
@@ -1350,6 +1435,9 @@ static void rec_store(struct lightrec_cstate *state,
 			rec_store_direct(state, block, offset, code, swap_code);
 		}
 		break;
+	case LIGHTREC_IO_DIRECT_HW:
+		rec_store_io(state, block, offset, code, swap_code);
+		break;
 	default:
 		rec_io(state, block, offset, true, false);
 		break;
@@ -1410,7 +1498,7 @@ static void rec_load_memory(struct lightrec_cstate *cstate,
 	struct opcode *op = &block->opcode_list[offset];
 	jit_state_t *_jit = block->_jit;
 	u8 rs, rt, addr_reg, flags = REG_EXT;
-	bool no_mask = op->flags & LIGHTREC_NO_MASK;
+	bool no_mask = op_flag_no_mask(op->flags);
 	union code c = op->c;
 	s16 imm;
 
@@ -1487,6 +1575,16 @@ static void rec_load_scratch(struct lightrec_cstate *cstate,
 			cstate->state->offset_scratch, 0x1fffffff);
 }
 
+static void rec_load_io(struct lightrec_cstate *cstate,
+			const struct block *block, u16 offset,
+			jit_code_t code, jit_code_t swap_code, bool is_unsigned)
+{
+	_jit_note(block->_jit, __FILE__, __LINE__);
+
+	rec_load_memory(cstate, block, offset, code, swap_code, is_unsigned,
+			cstate->state->offset_io, 0x1fffffff);
+}
+
 static void rec_load_direct(struct lightrec_cstate *cstate,
 			    const struct block *block, u16 offset,
 			    jit_code_t code, jit_code_t swap_code,
@@ -1600,7 +1698,7 @@ static void rec_load(struct lightrec_cstate *state, const struct block *block,
 		     u16 offset, jit_code_t code, jit_code_t swap_code,
 		     bool is_unsigned)
 {
-	u16 flags = block->opcode_list[offset].flags;
+	u32 flags = block->opcode_list[offset].flags;
 
 	switch (LIGHTREC_FLAGS_GET_IO_MODE(flags)) {
 	case LIGHTREC_IO_RAM:
@@ -1612,6 +1710,9 @@ static void rec_load(struct lightrec_cstate *state, const struct block *block,
 	case LIGHTREC_IO_SCRATCH:
 		rec_load_scratch(state, block, offset, code, swap_code, is_unsigned);
 		break;
+	case LIGHTREC_IO_DIRECT_HW:
+		rec_load_io(state, block, offset, code, swap_code, is_unsigned);
+		break;
 	case LIGHTREC_IO_DIRECT:
 		rec_load_direct(state, block, offset, code, swap_code, is_unsigned);
 		break;
@@ -1635,8 +1736,10 @@ static void rec_LBU(struct lightrec_cstate *state, const struct block *block, u1
 
 static void rec_LH(struct lightrec_cstate *state, const struct block *block, u16 offset)
 {
+	jit_code_t code = is_big_endian() ? jit_code_ldxi_us : jit_code_ldxi_s;
+
 	_jit_name(block->_jit, __func__);
-	rec_load(state, block, offset, jit_code_ldxi_s, jit_code_bswapr_us, false);
+	rec_load(state, block, offset, code, jit_code_bswapr_us, false);
 }
 
 static void rec_LHU(struct lightrec_cstate *state, const struct block *block, u16 offset)
@@ -1659,8 +1762,15 @@ static void rec_LWR(struct lightrec_cstate *state, const struct block *block, u1
 
 static void rec_LW(struct lightrec_cstate *state, const struct block *block, u16 offset)
 {
+	jit_code_t code;
+
+	if (is_big_endian() && __WORDSIZE == 64)
+		code = jit_code_ldxi_ui;
+	else
+		code = jit_code_ldxi_i;
+
 	_jit_name(block->_jit, __func__);
-	rec_load(state, block, offset, jit_code_ldxi_i, jit_code_bswapr_ui, false);
+	rec_load(state, block, offset, code, jit_code_bswapr_ui, false);
 }
 
 static void rec_LWC2(struct lightrec_cstate *state, const struct block *block, u16 offset)
@@ -1670,14 +1780,22 @@ static void rec_LWC2(struct lightrec_cstate *state, const struct block *block, u
 }
 
 static void rec_break_syscall(struct lightrec_cstate *state,
-			      const struct block *block, u16 offset, bool is_break)
+			      const struct block *block, u16 offset,
+			      u32 exit_code)
 {
+	struct regcache *reg_cache = state->reg_cache;
+	jit_state_t *_jit = block->_jit;
+	u8 tmp;
+
 	_jit_note(block->_jit, __FILE__, __LINE__);
 
-	if (is_break)
-		call_to_c_wrapper(state, block, 0, false, C_WRAPPER_BREAK);
-	else
-		call_to_c_wrapper(state, block, 0, false, C_WRAPPER_SYSCALL);
+	tmp = lightrec_alloc_reg_temp(reg_cache, _jit);
+
+	jit_movi(tmp, exit_code);
+	jit_stxi_i(offsetof(struct lightrec_state, exit_flags),
+		   LIGHTREC_REG_STATE, tmp);
+
+	lightrec_free_reg(reg_cache, tmp);
 
 	/* TODO: the return address should be "pc - 4" if we're a delay slot */
 	lightrec_emit_end_of_block(state, block, offset, -1,
@@ -1689,14 +1807,26 @@ static void rec_special_SYSCALL(struct lightrec_cstate *state,
 				const struct block *block, u16 offset)
 {
 	_jit_name(block->_jit, __func__);
-	rec_break_syscall(state, block, offset, false);
+	rec_break_syscall(state, block, offset, LIGHTREC_EXIT_SYSCALL);
 }
 
 static void rec_special_BREAK(struct lightrec_cstate *state,
 			      const struct block *block, u16 offset)
 {
 	_jit_name(block->_jit, __func__);
-	rec_break_syscall(state, block, offset, true);
+	rec_break_syscall(state, block, offset, LIGHTREC_EXIT_BREAK);
+}
+
+static void rec_mfc(struct lightrec_cstate *state, const struct block *block, u16 offset)
+{
+	struct regcache *reg_cache = state->reg_cache;
+	union code c = block->opcode_list[offset].c;
+	jit_state_t *_jit = block->_jit;
+
+	jit_note(__FILE__, __LINE__);
+	lightrec_clean_reg_if_loaded(reg_cache, _jit, c.i.rt, true);
+
+	call_to_c_wrapper(state, block, c.opcode, C_WRAPPER_MFC);
 }
 
 static void rec_mtc(struct lightrec_cstate *state, const struct block *block, u16 offset)
@@ -1709,10 +1839,10 @@ static void rec_mtc(struct lightrec_cstate *state, const struct block *block, u1
 	lightrec_clean_reg_if_loaded(reg_cache, _jit, c.i.rs, false);
 	lightrec_clean_reg_if_loaded(reg_cache, _jit, c.i.rt, false);
 
-	call_to_c_wrapper(state, block, c.opcode, true, C_WRAPPER_MTC);
+	call_to_c_wrapper(state, block, c.opcode, C_WRAPPER_MTC);
 
 	if (c.i.op == OP_CP0 &&
-	    !(block->opcode_list[offset].flags & LIGHTREC_NO_DS) &&
+	    !op_flag_no_ds(block->opcode_list[offset].flags) &&
 	    (c.r.rd == 12 || c.r.rd == 13))
 		lightrec_emit_end_of_block(state, block, offset, -1,
 					   get_ds_pc(block, offset, 1),
@@ -1835,7 +1965,7 @@ rec_mtc0(struct lightrec_cstate *state, const struct block *block, u16 offset)
 
 	lightrec_free_reg(reg_cache, rt);
 
-	if (!(block->opcode_list[offset].flags & LIGHTREC_NO_DS) &&
+	if (!op_flag_no_ds(block->opcode_list[offset].flags) &&
 	    (c.r.rd == 12 || c.r.rd == 13))
 		lightrec_emit_eob(state, block, offset + 1, true);
 }
@@ -1901,6 +2031,12 @@ static void rec_cp2_basic_MFC2(struct lightrec_cstate *state,
 
 	_jit_name(block->_jit, __func__);
 
+	if (state->state->ops.cop2_notify) {
+		/* We must call cop2_notify, handle that in C. */
+		rec_mfc(state, block, offset);
+		return;
+	}
+
 	flags = (zext_regs & BIT(reg)) ? REG_ZEXT : REG_EXT;
 	rt = lightrec_alloc_reg_out(reg_cache, _jit, c.r.rt, flags);
 
@@ -1969,6 +2105,12 @@ static void rec_cp2_basic_CFC2(struct lightrec_cstate *state,
 
 	_jit_name(block->_jit, __func__);
 
+	if (state->state->ops.cop2_notify) {
+		/* We must call cop2_notify, handle that in C. */
+		rec_mfc(state, block, offset);
+		return;
+	}
+
 	switch (c.r.rd) {
 	case 4:
 	case 12:
@@ -2000,6 +2142,12 @@ static void rec_cp2_basic_MTC2(struct lightrec_cstate *state,
 
 	_jit_name(block->_jit, __func__);
 
+	if (state->state->ops.cop2_notify) {
+		/* We must call cop2_notify, handle that in C. */
+		rec_mtc(state, block, offset);
+		return;
+	}
+
 	if (c.r.rd == 31)
 		return;
 
@@ -2084,6 +2232,12 @@ static void rec_cp2_basic_CTC2(struct lightrec_cstate *state,
 
 	_jit_name(block->_jit, __func__);
 
+	if (state->state->ops.cop2_notify) {
+		/* We must call cop2_notify, handle that in C. */
+		rec_mtc(state, block, offset);
+		return;
+	}
+
 	rt = lightrec_alloc_reg_in(reg_cache, _jit, c.r.rt, 0);
 
 	switch (c.r.rd) {
@@ -2169,7 +2323,7 @@ static void rec_CP(struct lightrec_cstate *state,
 	jit_name(__func__);
 	jit_note(__FILE__, __LINE__);
 
-	call_to_c_wrapper(state, block, c.opcode, true, C_WRAPPER_CP);
+	call_to_c_wrapper(state, block, c.opcode, C_WRAPPER_CP);
 }
 
 static void rec_meta_MOV(struct lightrec_cstate *state,
@@ -2220,6 +2374,59 @@ static void rec_meta_EXTC_EXTS(struct lightrec_cstate *state,
 	lightrec_free_reg(reg_cache, rt);
 }
 
+static void rec_meta_MULT2(struct lightrec_cstate *state,
+			   const struct block *block,
+			   u16 offset)
+{
+	struct regcache *reg_cache = state->reg_cache;
+	union code c = block->opcode_list[offset].c;
+	jit_state_t *_jit = block->_jit;
+	u8 reg_lo = get_mult_div_lo(c);
+	u8 reg_hi = get_mult_div_hi(c);
+	u32 flags = block->opcode_list[offset].flags;
+	bool is_signed = c.i.op == OP_META_MULT2;
+	u8 rs, lo, hi, rflags = 0, hiflags = 0;
+
+	if (!op_flag_no_hi(flags) && c.r.op < 32) {
+		rflags = is_signed ? REG_EXT : REG_ZEXT;
+		hiflags = is_signed ? REG_EXT : (REG_EXT | REG_ZEXT);
+	}
+
+	_jit_name(block->_jit, __func__);
+	jit_note(__FILE__, __LINE__);
+
+	rs = lightrec_alloc_reg_in(reg_cache, _jit, c.i.rs, rflags);
+
+	if (!op_flag_no_lo(flags)) {
+		lo = lightrec_alloc_reg_out(reg_cache, _jit, reg_lo, 0);
+
+		if (c.r.op < 32)
+			jit_lshi(lo, rs, c.r.op);
+		else
+			jit_movi(lo, 0);
+
+		lightrec_free_reg(reg_cache, lo);
+	}
+
+	if (!op_flag_no_hi(flags)) {
+		hi = lightrec_alloc_reg_out(reg_cache, _jit, reg_hi, hiflags);
+
+		if (c.r.op >= 32)
+			jit_lshi(hi, rs, c.r.op - 32);
+		else if (is_signed)
+			jit_rshi(hi, rs, 32 - c.r.op);
+		else
+			jit_rshi_u(hi, rs, 32 - c.r.op);
+
+		lightrec_free_reg(reg_cache, hi);
+	}
+
+	lightrec_free_reg(reg_cache, rs);
+
+	_jit_name(block->_jit, __func__);
+	jit_note(__FILE__, __LINE__);
+}
+
 static const lightrec_rec_func_t rec_standard[64] = {
 	SET_DEFAULT_ELM(rec_standard, unknown_opcode),
 	[OP_SPECIAL]		= rec_SPECIAL,
@@ -2258,6 +2465,8 @@ static const lightrec_rec_func_t rec_standard[64] = {
 	[OP_META_MOV]		= rec_meta_MOV,
 	[OP_META_EXTC]		= rec_meta_EXTC_EXTS,
 	[OP_META_EXTS]		= rec_meta_EXTC_EXTS,
+	[OP_META_MULT2]		= rec_meta_MULT2,
+	[OP_META_MULTU2]	= rec_meta_MULT2,
 };
 
 static const lightrec_rec_func_t rec_special[64] = {
@@ -2378,9 +2587,11 @@ void lightrec_rec_opcode(struct lightrec_cstate *state,
 	const struct opcode *op = &block->opcode_list[offset];
 	jit_state_t *_jit = block->_jit;
 	lightrec_rec_func_t f;
+	u16 unload_offset;
 
-	if (op->flags & LIGHTREC_SYNC) {
-		jit_subi(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, state->cycles);
+	if (op_flag_sync(op->flags)) {
+		if (state->cycles)
+			jit_subi(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, state->cycles);
 		state->cycles = 0;
 
 		lightrec_storeback_regs(reg_cache, _jit);
@@ -2401,16 +2612,10 @@ void lightrec_rec_opcode(struct lightrec_cstate *state,
 			(*f)(state, block, offset);
 	}
 
-	if (unlikely(op->flags & LIGHTREC_UNLOAD_RD)) {
-		lightrec_clean_reg_if_loaded(reg_cache, _jit, op->r.rd, true);
-		pr_debug("Cleaning RD reg %s\n", lightrec_reg_name(op->r.rd));
-	}
-	if (unlikely(op->flags & LIGHTREC_UNLOAD_RS)) {
-		lightrec_clean_reg_if_loaded(reg_cache, _jit, op->i.rs, true);
-		pr_debug("Cleaning RS reg %s\n", lightrec_reg_name(op->i.rt));
-	}
-	if (unlikely(op->flags & LIGHTREC_UNLOAD_RT)) {
-		lightrec_clean_reg_if_loaded(reg_cache, _jit, op->i.rt, true);
-		pr_debug("Cleaning RT reg %s\n", lightrec_reg_name(op->i.rt));
+	if (OPT_EARLY_UNLOAD) {
+		unload_offset = offset +
+			(has_delay_slot(op->c) && !op_flag_no_ds(op->flags));
+
+		lightrec_do_early_unload(state, block, unload_offset);
 	}
 }