4 files changed, 18 insertions, 25 deletions

diff --git a/src/core/arm/dyncom/arm_dyncom.cpp b/src/core/arm/dyncom/arm_dyncom.cpp
index bc1e969e4..128413262 100644
--- a/src/core/arm/dyncom/arm_dyncom.cpp
+++ b/src/core/arm/dyncom/arm_dyncom.cpp
@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include "common/make_unique.h"
+
 #include "core/arm/skyeye_common/armemu.h"
 #include "core/arm/skyeye_common/vfp/vfp.h"
 
@@ -17,7 +19,7 @@ const static cpu_config_t s_arm11_cpu_info = {
 };
 
 ARM_DynCom::ARM_DynCom(PrivilegeMode initial_mode) {
-    state = std::unique_ptr<ARMul_State>(new ARMul_State);
+    state = Common::make_unique<ARMul_State>();
 
     ARMul_NewState(state.get());
     ARMul_SelectProcessor(state.get(), ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop);
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index fde11e4ff..991da740b 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -6,7 +6,6 @@
 
 #include <algorithm>
 #include <cstdio>
-#include <unordered_map>
 
 #include "common/logging/log.h"
 #include "common/profiler.h"
@@ -3533,25 +3532,6 @@ const transop_fp_t arm_instruction_trans[] = {
     INTERPRETER_TRANSLATE(blx_1_thumb)
 };
 
-typedef std::unordered_map<u32, int> bb_map;
-static bb_map CreamCache;
-
-static void insert_bb(unsigned int addr, int start) {
-    CreamCache[addr] = start;
-}
-
-static int find_bb(unsigned int addr, int& start) {
-    int ret = -1;
-    bb_map::const_iterator it = CreamCache.find(addr);
-    if (it != CreamCache.end()) {
-        start = static_cast<int>(it->second);
-        ret = 0;
-    } else {
-        ret = -1;
-    }
-    return ret;
-}
-
 enum {
     FETCH_SUCCESS,
     FETCH_FAILURE
@@ -3674,7 +3654,9 @@ translated:
         }
         ret = inst_base->br;
     };
-    insert_bb(pc_start, bb_start);
+
+    cpu->instruction_cache[pc_start] = bb_start;
+
     return KEEP_GOING;
 }
 
@@ -4001,9 +3983,14 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
 
         phys_addr = cpu->Reg[15];
 
-        if (find_bb(cpu->Reg[15], ptr) == -1)
+        // Find the cached instruction cream, otherwise translate it...
+        auto itr = cpu->instruction_cache.find(cpu->Reg[15]);
+        if (itr != cpu->instruction_cache.end()) {
+            ptr = itr->second;
+        } else {
             if (InterpreterTranslate(cpu, ptr, cpu->Reg[15]) == FETCH_EXCEPTION)
                 goto END;
+        }
 
         inst_base = (arm_inst *)&inst_buf[ptr];
         GOTO_NEXT_INST;
diff --git a/src/core/arm/interpreter/arminit.cpp b/src/core/arm/interpreter/arminit.cpp
index 6ac45c396..31b2bab06 100644
--- a/src/core/arm/interpreter/arminit.cpp
+++ b/src/core/arm/interpreter/arminit.cpp
@@ -26,8 +26,6 @@
 \***************************************************************************/
 ARMul_State* ARMul_NewState(ARMul_State* state)
 {
-    memset(state, 0, sizeof(ARMul_State));
-
     state->Emulate = RUN;
     state->Mode = USER32MODE;
 
diff --git a/src/core/arm/skyeye_common/armdefs.h b/src/core/arm/skyeye_common/armdefs.h
index 08da6d9eb..85d523bc2 100644
--- a/src/core/arm/skyeye_common/armdefs.h
+++ b/src/core/arm/skyeye_common/armdefs.h
@@ -17,6 +17,8 @@
 
 #pragma once
 
+#include <unordered_map>
+
 #include "common/common_types.h"
 #include "core/arm/skyeye_common/arm_regformat.h"
 #include "core/arm/skyeye_common/skyeye_defs.h"
@@ -152,6 +154,10 @@ So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
 
     // Added by ksh in 2005-10-1
     cpu_config_t* cpu;
+
+    // TODO(bunnei): Move this cache to a better place - it should be per codeset (likely per
+    // process for our purposes), not per ARMul_State (which tracks CPU core state).
+    std::unordered_map<u32, int> instruction_cache;
 };
 
 /***************************************************************************\