dyncom: Move arminit.cpp and armsupp.cpp into skyeye_common

src/core/arm/skyeye_common/arminit.cpp

@@ -0,0 +1,128 @@
+/*  arminit.c -- ARMulator initialization:  ARM6 Instruction Emulator.
+    Copyright (C) 1994 Advanced RISC Machines Ltd.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include <cstring>
+#include "core/arm/skyeye_common/armdefs.h"
+#include "core/arm/skyeye_common/vfp/vfp.h"
+
+/***************************************************************************\
+*            Returns a new instantiation of the ARMulator's state           *
+\***************************************************************************/
+ARMul_State* ARMul_NewState(ARMul_State* state)
+{
+    state->Emulate = RUN;
+    state->Mode = USER32MODE;
+
+    state->lateabtSig = HIGH;
+    state->bigendSig = LOW;
+
+    return state;
+}
+
+/***************************************************************************\
+*       Call this routine to set ARMulator to model a certain processor     *
+\***************************************************************************/
+
+void ARMul_SelectProcessor(ARMul_State* state, unsigned properties)
+{
+    state->is_v4  = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0;
+    state->is_v5  = (properties & ARM_v5_Prop) != 0;
+    state->is_v5e = (properties & ARM_v5e_Prop) != 0;
+    state->is_v6  = (properties & ARM_v6_Prop) != 0;
+    state->is_v7  = (properties & ARM_v7_Prop) != 0;
+}
+
+// Resets certain MPCore CP15 values to their ARM-defined reset values.
+static void ResetMPCoreCP15Registers(ARMul_State* cpu)
+{
+    // c0
+    cpu->CP15[CP15_MAIN_ID]  = 0x410FB024;
+    cpu->CP15[CP15_TLB_TYPE] = 0x00000800;
+    cpu->CP15[CP15_PROCESSOR_FEATURE_0] = 0x00000111;
+    cpu->CP15[CP15_PROCESSOR_FEATURE_1] = 0x00000001;
+    cpu->CP15[CP15_DEBUG_FEATURE_0] = 0x00000002;
+    cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0] = 0x01100103;
+    cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1] = 0x10020302;
+    cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2] = 0x01222000;
+    cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3] = 0x00000000;
+    cpu->CP15[CP15_ISA_FEATURE_0] = 0x00100011;
+    cpu->CP15[CP15_ISA_FEATURE_1] = 0x12002111;
+    cpu->CP15[CP15_ISA_FEATURE_2] = 0x11221011;
+    cpu->CP15[CP15_ISA_FEATURE_3] = 0x01102131;
+    cpu->CP15[CP15_ISA_FEATURE_4] = 0x00000141;
+
+    // c1
+    cpu->CP15[CP15_CONTROL] = 0x00054078;
+    cpu->CP15[CP15_AUXILIARY_CONTROL] = 0x0000000F;
+    cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = 0x00000000;
+
+    // c2
+    cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = 0x00000000;
+    cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = 0x00000000;
+    cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = 0x00000000;
+
+    // c3
+    cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = 0x00000000;
+
+    // c7
+    cpu->CP15[CP15_PHYS_ADDRESS] = 0x00000000;
+
+    // c9
+    cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = 0xFFFFFFF0;
+
+    // c10
+    cpu->CP15[CP15_TLB_LOCKDOWN] = 0x00000000;
+    cpu->CP15[CP15_PRIMARY_REGION_REMAP] = 0x00098AA4;
+    cpu->CP15[CP15_NORMAL_REGION_REMAP]  = 0x44E048E0;
+
+    // c13
+    cpu->CP15[CP15_PID] = 0x00000000;
+    cpu->CP15[CP15_CONTEXT_ID]  = 0x00000000;
+    cpu->CP15[CP15_THREAD_UPRW] = 0x00000000;
+    cpu->CP15[CP15_THREAD_URO]  = 0x00000000;
+    cpu->CP15[CP15_THREAD_PRW]  = 0x00000000;
+
+    // c15
+    cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL]    = 0x00000000;
+    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = 0x00000000;
+    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = 0x00000000;
+    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE]    = 0x00000000;
+    cpu->CP15[CP15_TLB_DEBUG_CONTROL] = 0x00000000;
+}
+
+/***************************************************************************\
+* Call this routine to set up the initial machine state (or perform a RESET *
+\***************************************************************************/
+void ARMul_Reset(ARMul_State* state)
+{
+    VFPInit(state);
+
+    state->Reg[15] = 0;
+    state->Cpsr = INTBITS | SVC32MODE;
+    state->Mode = SVC32MODE;
+    state->Bank = SVCBANK;
+
+    ResetMPCoreCP15Registers(state);
+
+    state->NresetSig = HIGH;
+    state->NfiqSig = HIGH;
+    state->NirqSig = HIGH;
+    state->NtransSig = (state->Mode & 3) ? HIGH : LOW;
+    state->abortSig = LOW;
+
+    state->NumInstrs = 0;
+}

src/core/arm/skyeye_common/armsupp.cpp

@@ -0,0 +1,637 @@
+/*  armsupp.c -- ARMulator support code:  ARM6 Instruction Emulator.
+    Copyright (C) 1994 Advanced RISC Machines Ltd.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "common/logging/log.h"
+
+#include "core/mem_map.h"
+#include "core/arm/skyeye_common/armdefs.h"
+#include "core/arm/skyeye_common/arm_regformat.h"
+
+// Unsigned sum of absolute difference
+u8 ARMul_UnsignedAbsoluteDifference(u8 left, u8 right)
+{
+    if (left > right)
+        return left - right;
+
+    return right - left;
+}
+
+// Add with carry, indicates if a carry-out or signed overflow occurred.
+u32 AddWithCarry(u32 left, u32 right, u32 carry_in, bool* carry_out_occurred, bool* overflow_occurred)
+{
+    u64 unsigned_sum = (u64)left + (u64)right + (u64)carry_in;
+    s64 signed_sum = (s64)(s32)left + (s64)(s32)right + (s64)carry_in;
+    u64 result = (unsigned_sum & 0xFFFFFFFF);
+
+    if (carry_out_occurred)
+        *carry_out_occurred = (result != unsigned_sum);
+
+    if (overflow_occurred)
+        *overflow_occurred = ((s64)(s32)result != signed_sum);
+
+    return (u32)result;
+}
+
+// Compute whether an addition of A and B, giving RESULT, overflowed.
+bool AddOverflow(ARMword a, ARMword b, ARMword result)
+{
+    return ((NEG(a) && NEG(b) && POS(result)) ||
+            (POS(a) && POS(b) && NEG(result)));
+}
+
+// Compute whether a subtraction of A and B, giving RESULT, overflowed.
+bool SubOverflow(ARMword a, ARMword b, ARMword result)
+{
+    return ((NEG(a) && POS(b) && POS(result)) ||
+            (POS(a) && NEG(b) && NEG(result)));
+}
+
+// Returns true if the Q flag should be set as a result of overflow.
+bool ARMul_AddOverflowQ(ARMword a, ARMword b)
+{
+    u32 result = a + b;
+    if (((result ^ a) & (u32)0x80000000) && ((a ^ b) & (u32)0x80000000) == 0)
+        return true;
+
+    return false;
+}
+
+// 8-bit signed saturated addition
+u8 ARMul_SignedSaturatedAdd8(u8 left, u8 right)
+{
+    u8 result = left + right;
+
+    if (((result ^ left) & 0x80) && ((left ^ right) & 0x80) == 0) {
+        if (left & 0x80)
+            result = 0x80;
+        else
+            result = 0x7F;
+    }
+
+    return result;
+}
+
+// 8-bit signed saturated subtraction
+u8 ARMul_SignedSaturatedSub8(u8 left, u8 right)
+{
+    u8 result = left - right;
+
+    if (((result ^ left) & 0x80) && ((left ^ right) & 0x80) != 0) {
+        if (left & 0x80)
+            result = 0x80;
+        else
+            result = 0x7F;
+    }
+
+    return result;
+}
+
+// 16-bit signed saturated addition
+u16 ARMul_SignedSaturatedAdd16(u16 left, u16 right)
+{
+    u16 result = left + right;
+
+    if (((result ^ left) & 0x8000) && ((left ^ right) & 0x8000) == 0) {
+        if (left & 0x8000)
+            result = 0x8000;
+        else
+            result = 0x7FFF;
+    }
+
+    return result;
+}
+
+// 16-bit signed saturated subtraction
+u16 ARMul_SignedSaturatedSub16(u16 left, u16 right)
+{
+    u16 result = left - right;
+
+    if (((result ^ left) & 0x8000) && ((left ^ right) & 0x8000) != 0) {
+        if (left & 0x8000)
+            result = 0x8000;
+        else
+            result = 0x7FFF;
+    }
+
+    return result;
+}
+
+// 8-bit unsigned saturated addition
+u8 ARMul_UnsignedSaturatedAdd8(u8 left, u8 right)
+{
+    u8 result = left + right;
+
+    if (result < left)
+        result = 0xFF;
+
+    return result;
+}
+
+// 16-bit unsigned saturated addition
+u16 ARMul_UnsignedSaturatedAdd16(u16 left, u16 right)
+{
+    u16 result = left + right;
+
+    if (result < left)
+        result = 0xFFFF;
+
+    return result;
+}
+
+// 8-bit unsigned saturated subtraction
+u8 ARMul_UnsignedSaturatedSub8(u8 left, u8 right)
+{
+    if (left <= right)
+        return 0;
+
+    return left - right;
+}
+
+// 16-bit unsigned saturated subtraction
+u16 ARMul_UnsignedSaturatedSub16(u16 left, u16 right)
+{
+    if (left <= right)
+        return 0;
+
+    return left - right;
+}
+
+// Signed saturation.
+u32 ARMul_SignedSatQ(s32 value, u8 shift, bool* saturation_occurred)
+{
+    const u32 max = (1 << shift) - 1;
+    const s32 top = (value >> shift);
+
+    if (top > 0) {
+        *saturation_occurred = true;
+        return max;
+    }
+    else if (top < -1) {
+        *saturation_occurred = true;
+        return ~max;
+    }
+
+    *saturation_occurred = false;
+    return (u32)value;
+}
+
+// Unsigned saturation
+u32 ARMul_UnsignedSatQ(s32 value, u8 shift, bool* saturation_occurred)
+{
+    const u32 max = (1 << shift) - 1;
+
+    if (value < 0) {
+        *saturation_occurred = true;
+        return 0;
+    } else if ((u32)value > max) {
+        *saturation_occurred = true;
+        return max;
+    }
+
+    *saturation_occurred = false;
+    return (u32)value;
+}
+
+// Whether or not the given CPU is in big endian mode (E bit is set)
+bool InBigEndianMode(ARMul_State* cpu)
+{
+    return (cpu->Cpsr & (1 << 9)) != 0;
+}
+
+// Whether or not the given CPU is in a mode other than user mode.
+bool InAPrivilegedMode(ARMul_State* cpu)
+{
+    return (cpu->Mode != USER32MODE);
+}
+
+// Reads from the CP15 registers. Used with implementation of the MRC instruction.
+// Note that since the 3DS does not have the hypervisor extensions, these registers
+// are not implemented.
+u32 ReadCP15Register(ARMul_State* cpu, u32 crn, u32 opcode_1, u32 crm, u32 opcode_2)
+{
+    // Unprivileged registers
+    if (crn == 13 && opcode_1 == 0 && crm == 0)
+    {
+        if (opcode_2 == 2)
+            return cpu->CP15[CP15_THREAD_UPRW];
+
+        if (opcode_2 == 3)
+            return cpu->CP15[CP15_THREAD_URO];
+    }
+
+    if (InAPrivilegedMode(cpu))
+    {
+        if (crn == 0 && opcode_1 == 0)
+        {
+            if (crm == 0)
+            {
+                if (opcode_2 == 0)
+                    return cpu->CP15[CP15_MAIN_ID];
+
+                if (opcode_2 == 1)
+                    return cpu->CP15[CP15_CACHE_TYPE];
+
+                if (opcode_2 == 3)
+                    return cpu->CP15[CP15_TLB_TYPE];
+
+                if (opcode_2 == 5)
+                    return cpu->CP15[CP15_CPU_ID];
+            }
+            else if (crm == 1)
+            {
+                if (opcode_2 == 0)
+                    return cpu->CP15[CP15_PROCESSOR_FEATURE_0];
+
+                if (opcode_2 == 1)
+                    return cpu->CP15[CP15_PROCESSOR_FEATURE_1];
+
+                if (opcode_2 == 2)
+                    return cpu->CP15[CP15_DEBUG_FEATURE_0];
+
+                if (opcode_2 == 4)
+                    return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0];
+
+                if (opcode_2 == 5)
+                    return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1];
+
+                if (opcode_2 == 6)
+                    return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2];
+
+                if (opcode_2 == 7)
+                    return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3];
+            }
+            else if (crm == 2)
+            {
+                if (opcode_2 == 0)
+                    return cpu->CP15[CP15_ISA_FEATURE_0];
+
+                if (opcode_2 == 1)
+                    return cpu->CP15[CP15_ISA_FEATURE_1];
+
+                if (opcode_2 == 2)
+                    return cpu->CP15[CP15_ISA_FEATURE_2];
+
+                if (opcode_2 == 3)
+                    return cpu->CP15[CP15_ISA_FEATURE_3];
+
+                if (opcode_2 == 4)
+                    return cpu->CP15[CP15_ISA_FEATURE_4];
+            }
+        }
+
+        if (crn == 1 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                return cpu->CP15[CP15_CONTROL];
+
+            if (opcode_2 == 1)
+                return cpu->CP15[CP15_AUXILIARY_CONTROL];
+
+            if (opcode_2 == 2)
+                return cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL];
+        }
+
+        if (crn == 2 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                return cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0];
+
+            if (opcode_2 == 1)
+                return cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1];
+
+            if (opcode_2 == 2)
+                return cpu->CP15[CP15_TRANSLATION_BASE_CONTROL];
+        }
+
+        if (crn == 3 && opcode_1 == 0 && crm == 0 && opcode_2 == 0)
+            return cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL];
+
+        if (crn == 5 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                return cpu->CP15[CP15_FAULT_STATUS];
+
+            if (opcode_2 == 1)
+                return cpu->CP15[CP15_INSTR_FAULT_STATUS];
+        }
+
+        if (crn == 6 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                return cpu->CP15[CP15_FAULT_ADDRESS];
+
+            if (opcode_2 == 1)
+                return cpu->CP15[CP15_WFAR];
+        }
+
+        if (crn == 7 && opcode_1 == 0 && crm == 4 && opcode_2 == 0)
+            return cpu->CP15[CP15_PHYS_ADDRESS];
+
+        if (crn == 9 && opcode_1 == 0 && crm == 0 && opcode_2 == 0)
+            return cpu->CP15[CP15_DATA_CACHE_LOCKDOWN];
+
+        if (crn == 10 && opcode_1 == 0)
+        {
+            if (crm == 0 && opcode_2 == 0)
+                return cpu->CP15[CP15_TLB_LOCKDOWN];
+
+            if (crm == 2)
+            {
+                if (opcode_2 == 0)
+                    return cpu->CP15[CP15_PRIMARY_REGION_REMAP];
+
+                if (opcode_2 == 1)
+                    return cpu->CP15[CP15_NORMAL_REGION_REMAP];
+            }
+        }
+
+        if (crn == 13 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                return cpu->CP15[CP15_PID];
+
+            if (opcode_2 == 1)
+                return cpu->CP15[CP15_CONTEXT_ID];
+
+            if (opcode_2 == 4)
+                return cpu->CP15[CP15_THREAD_PRW];
+        }
+
+        if (crn == 15)
+        {
+            if (opcode_1 == 0 && crm == 12)
+            {
+                if (opcode_2 == 0)
+                    return cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL];
+
+                if (opcode_2 == 1)
+                    return cpu->CP15[CP15_CYCLE_COUNTER];
+
+                if (opcode_2 == 2)
+                    return cpu->CP15[CP15_COUNT_0];
+
+                if (opcode_2 == 3)
+                    return cpu->CP15[CP15_COUNT_1];
+            }
+
+            if (opcode_1 == 5 && opcode_2 == 2)
+            {
+                if (crm == 5)
+                    return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS];
+
+                if (crm == 6)
+                    return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS];
+
+                if (crm == 7)
+                    return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE];
+            }
+
+            if (opcode_1 == 7 && crm == 1 && opcode_2 == 0)
+                return cpu->CP15[CP15_TLB_DEBUG_CONTROL];
+        }
+    }
+
+    LOG_ERROR(Core_ARM11, "MRC CRn=%u, CRm=%u, OP1=%u OP2=%u is not implemented. Returning zero.", crn, crm, opcode_1, opcode_2);
+    return 0;
+}
+
+// Write to the CP15 registers. Used with implementation of the MCR instruction.
+// Note that since the 3DS does not have the hypervisor extensions, these registers
+// are not implemented.
+void WriteCP15Register(ARMul_State* cpu, u32 value, u32 crn, u32 opcode_1, u32 crm, u32 opcode_2)
+{
+    if (InAPrivilegedMode(cpu))
+    {
+        if (crn == 1 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                cpu->CP15[CP15_CONTROL] = value;
+            else if (opcode_2 == 1)
+                cpu->CP15[CP15_AUXILIARY_CONTROL] = value;
+            else if (opcode_2 == 2)
+                cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = value;
+        }
+        else if (crn == 2 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = value;
+            else if (opcode_2 == 1)
+                cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = value;
+            else if (opcode_2 == 2)
+                cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = value;
+        }
+        else if (crn == 3 && opcode_1 == 0 && crm == 0 && opcode_2 == 0)
+        {
+            cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = value;
+        }
+        else if (crn == 5 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                cpu->CP15[CP15_FAULT_STATUS] = value;
+            else if (opcode_2 == 1)
+                cpu->CP15[CP15_INSTR_FAULT_STATUS] = value;
+        }
+        else if (crn == 6 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                cpu->CP15[CP15_FAULT_ADDRESS] = value;
+            else if (opcode_2 == 1)
+                cpu->CP15[CP15_WFAR] = value;
+        }
+        else if (crn == 7 && opcode_1 == 0)
+        {
+            if (crm == 0 && opcode_2 == 4)
+            {
+                cpu->CP15[CP15_WAIT_FOR_INTERRUPT] = value;
+            }
+            else if (crm == 4 && opcode_2 == 0)
+            {
+                // NOTE: Not entirely accurate. This should do permission checks.
+                cpu->CP15[CP15_PHYS_ADDRESS] = Memory::VirtualToPhysicalAddress(value);
+            }
+            else if (crm == 5)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_INVALIDATE_INSTR_CACHE] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_INVALIDATE_INSTR_CACHE_USING_MVA] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_INVALIDATE_INSTR_CACHE_USING_INDEX] = value;
+                else if (opcode_2 == 6)
+                    cpu->CP15[CP15_FLUSH_BRANCH_TARGET_CACHE] = value;
+                else if (opcode_2 == 7)
+                    cpu->CP15[CP15_FLUSH_BRANCH_TARGET_CACHE_ENTRY] = value;
+            }
+            else if (crm == 6)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_INVALIDATE_DATA_CACHE] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_INVALIDATE_DATA_CACHE_LINE_USING_MVA] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_INVALIDATE_DATA_CACHE_LINE_USING_INDEX] = value;
+            }
+            else if (crm == 7 && opcode_2 == 0)
+            {
+                cpu->CP15[CP15_INVALIDATE_DATA_AND_INSTR_CACHE] = value;
+            }
+            else if (crm == 10)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_CLEAN_DATA_CACHE] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_CLEAN_DATA_CACHE_LINE_USING_MVA] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_CLEAN_DATA_CACHE_LINE_USING_INDEX] = value;
+            }
+            else if (crm == 14)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE_LINE_USING_MVA] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE_LINE_USING_INDEX] = value;
+            }
+        }
+        else if (crn == 8 && opcode_1 == 0)
+        {
+            LOG_WARNING(Core_ARM11, "TLB operations not fully implemented.");
+
+            if (crm == 5)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_INVALIDATE_ITLB] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_INVALIDATE_ITLB_SINGLE_ENTRY] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_INVALIDATE_ITLB_ENTRY_ON_ASID_MATCH] = value;
+                else if (opcode_2 == 3)
+                    cpu->CP15[CP15_INVALIDATE_ITLB_ENTRY_ON_MVA] = value;
+            }
+            else if (crm == 6)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_INVALIDATE_DTLB] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_INVALIDATE_DTLB_SINGLE_ENTRY] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_INVALIDATE_DTLB_ENTRY_ON_ASID_MATCH] = value;
+                else if (opcode_2 == 3)
+                    cpu->CP15[CP15_INVALIDATE_DTLB_ENTRY_ON_MVA] = value;
+            }
+            else if (crm == 7)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_INVALIDATE_UTLB] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_INVALIDATE_UTLB_SINGLE_ENTRY] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_INVALIDATE_UTLB_ENTRY_ON_ASID_MATCH] = value;
+                else if (opcode_2 == 3)
+                    cpu->CP15[CP15_INVALIDATE_UTLB_ENTRY_ON_MVA] = value;
+            }
+        }
+        else if (crn == 9 && opcode_1 == 0 && crm == 0 && opcode_2 == 0)
+        {
+            cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = value;
+        }
+        else if (crn == 10 && opcode_1 == 0)
+        {
+            if (crm == 0 && opcode_2 == 0)
+            {
+                cpu->CP15[CP15_TLB_LOCKDOWN] = value;
+            }
+            else if (crm == 2)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_PRIMARY_REGION_REMAP] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_NORMAL_REGION_REMAP] = value;
+            }
+        }
+        else if (crn == 13 && opcode_1 == 0 && crm == 0)
+        {
+            if (opcode_2 == 0)
+                cpu->CP15[CP15_PID] = value;
+            else if (opcode_2 == 1)
+                cpu->CP15[CP15_CONTEXT_ID] = value;
+            else if (opcode_2 == 3)
+                cpu->CP15[CP15_THREAD_URO] = value;
+            else if (opcode_2 == 4)
+                cpu->CP15[CP15_THREAD_PRW] = value;
+        }
+        else if (crn == 15)
+        {
+            if (opcode_1 == 0 && crm == 12)
+            {
+                if (opcode_2 == 0)
+                    cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL] = value;
+                else if (opcode_2 == 1)
+                    cpu->CP15[CP15_CYCLE_COUNTER] = value;
+                else if (opcode_2 == 2)
+                    cpu->CP15[CP15_COUNT_0] = value;
+                else if (opcode_2 == 3)
+                    cpu->CP15[CP15_COUNT_1] = value;
+            }
+            else if (opcode_1 == 5)
+            {
+                if (crm == 4)
+                {
+                    if (opcode_2 == 2)
+                        cpu->CP15[CP15_READ_MAIN_TLB_LOCKDOWN_ENTRY] = value;
+                    else if (opcode_2 == 4)
+                        cpu->CP15[CP15_WRITE_MAIN_TLB_LOCKDOWN_ENTRY] = value;
+                }
+                else if (crm == 5 && opcode_2 == 2)
+                {
+                    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = value;
+                }
+                else if (crm == 6 && opcode_2 == 2)
+                {
+                    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = value;
+                }
+                else if (crm == 7 && opcode_2 == 2)
+                {
+                    cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE] = value;
+                }
+            }
+            else if (opcode_1 == 7 && crm == 1 && opcode_2 == 0)
+            {
+                cpu->CP15[CP15_TLB_DEBUG_CONTROL] = value;
+            }
+        }
+    }
+
+    // Unprivileged registers
+    if (crn == 7 && opcode_1 == 0 && crm == 5 && opcode_2 == 4)
+    {
+        cpu->CP15[CP15_FLUSH_PREFETCH_BUFFER] = value;
+    }
+    else if (crn == 7 && opcode_1 == 0 && crm == 10)
+    {
+       if (opcode_2 == 4)
+           cpu->CP15[CP15_DATA_SYNC_BARRIER] = value;
+       else if (opcode_2 == 5)
+           cpu->CP15[CP15_DATA_MEMORY_BARRIER] = value;
+
+    }
+    else if (crn == 13 && opcode_1 == 0 && crm == 0 && opcode_2 == 2)
+    {
+        cpu->CP15[CP15_THREAD_UPRW] = value;
+    }
+}