A32/translate_thumb: Split off implementation into thumb16 and thumb32

src/CMakeLists.txt

@@ -112,7 +112,10 @@ add_library(dynarmic
     frontend/A32/translate/impl/saturated.cpp
     frontend/A32/translate/impl/status_register_access.cpp
     frontend/A32/translate/impl/synchronization.cpp
+    frontend/A32/translate/impl/thumb16.cpp
+    frontend/A32/translate/impl/thumb32.cpp
     frontend/A32/translate/impl/translate_arm.h
+    frontend/A32/translate/impl/translate_thumb.h
     frontend/A32/translate/impl/vfp.cpp
     frontend/A32/translate/translate.cpp
     frontend/A32/translate/translate.h

src/frontend/A32/translate/impl/thumb16.cpp

@@ -0,0 +1,928 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2016 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include "translate_thumb.h"
+
+#include <dynarmic/A32/config.h>
+
+namespace Dynarmic::A32 {
+
+// LSLS <Rd>, <Rm>, #<imm5>
+bool ThumbTranslatorVisitor::thumb16_LSL_imm(Imm<5> imm5, Reg m, Reg d) {
+    const u8 shift_n = imm5.ZeroExtend<u8>();
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.LogicalShiftLeft(ir.GetRegister(m), ir.Imm8(shift_n), cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// LSRS <Rd>, <Rm>, #<imm5>
+bool ThumbTranslatorVisitor::thumb16_LSR_imm(Imm<5> imm5, Reg m, Reg d) {
+    const u8 shift_n = imm5 != 0 ? imm5.ZeroExtend<u8>() : u8(32);
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.LogicalShiftRight(ir.GetRegister(m), ir.Imm8(shift_n), cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// ASRS <Rd>, <Rm>, #<imm5>
+bool ThumbTranslatorVisitor::thumb16_ASR_imm(Imm<5> imm5, Reg m, Reg d) {
+    const u8 shift_n = imm5 != 0 ? imm5.ZeroExtend<u8>() : u8(32);
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.ArithmeticShiftRight(ir.GetRegister(m), ir.Imm8(shift_n), cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// ADDS <Rd>, <Rn>, <Rm>
+// Note that it is not possible to encode Rd == R15.
+bool ThumbTranslatorVisitor::thumb16_ADD_reg_t1(Reg m, Reg n, Reg d) {
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(0));
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// SUBS <Rd>, <Rn>, <Rm>
+// Note that it is not possible to encode Rd == R15.
+bool ThumbTranslatorVisitor::thumb16_SUB_reg(Reg m, Reg n, Reg d) {
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(1));
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// ADDS <Rd>, <Rn>, #<imm3>
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_ADD_imm_t1(Imm<3> imm3, Reg n, Reg d) {
+    const u32 imm32 = imm3.ZeroExtend();
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.Imm32(imm32), ir.Imm1(0));
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// SUBS <Rd>, <Rn>, #<imm3>
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_SUB_imm_t1(Imm<3> imm3, Reg n, Reg d) {
+    const u32 imm32 = imm3.ZeroExtend();
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.Imm32(imm32), ir.Imm1(1));
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// MOVS <Rd>, #<imm8>
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_MOV_imm(Reg d, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend();
+    const auto result = ir.Imm32(imm32);
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// CMP <Rn>, #<imm8>
+bool ThumbTranslatorVisitor::thumb16_CMP_imm(Reg n, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend();
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.Imm32(imm32), ir.Imm1(1));
+
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// ADDS <Rdn>, #<imm8>
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_ADD_imm_t2(Reg d_n, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend();
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.Imm32(imm32), ir.Imm1(0));
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// SUBS <Rd>, <Rn>, #<imm3>
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_SUB_imm_t2(Reg d_n, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend();
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.Imm32(imm32), ir.Imm1(1));
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// ANDS <Rdn>, <Rm>
+// Note that it is not possible to encode Rdn == R15.
+bool ThumbTranslatorVisitor::thumb16_AND_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.And(ir.GetRegister(n), ir.GetRegister(m));
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// EORS <Rdn>, <Rm>
+// Note that it is not possible to encode Rdn == R15.
+bool ThumbTranslatorVisitor::thumb16_EOR_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.Eor(ir.GetRegister(n), ir.GetRegister(m));
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// LSLS <Rdn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_LSL_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto shift_n = ir.LeastSignificantByte(ir.GetRegister(m));
+    const auto apsr_c = ir.GetCFlag();
+    const auto result_carry = ir.LogicalShiftLeft(ir.GetRegister(n), shift_n, apsr_c);
+
+    ir.SetRegister(d, result_carry.result);
+    ir.SetNFlag(ir.MostSignificantBit(result_carry.result));
+    ir.SetZFlag(ir.IsZero(result_carry.result));
+    ir.SetCFlag(result_carry.carry);
+    return true;
+}
+
+// LSRS <Rdn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_LSR_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto shift_n = ir.LeastSignificantByte(ir.GetRegister(m));
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.LogicalShiftRight(ir.GetRegister(n), shift_n, cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// ASRS <Rdn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_ASR_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto shift_n = ir.LeastSignificantByte(ir.GetRegister(m));
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.ArithmeticShiftRight(ir.GetRegister(n), shift_n, cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// ADCS <Rdn>, <Rm>
+// Note that it is not possible to encode Rd == R15.
+bool ThumbTranslatorVisitor::thumb16_ADC_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto aspr_c = ir.GetCFlag();
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.GetRegister(m), aspr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// SBCS <Rdn>, <Rm>
+// Note that it is not possible to encode Rd == R15.
+bool ThumbTranslatorVisitor::thumb16_SBC_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto aspr_c = ir.GetCFlag();
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.GetRegister(m), aspr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// RORS <Rdn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_ROR_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto shift_n = ir.LeastSignificantByte(ir.GetRegister(m));
+    const auto cpsr_c = ir.GetCFlag();
+    const auto result = ir.RotateRight(ir.GetRegister(n), shift_n, cpsr_c);
+
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    return true;
+}
+
+// TST <Rn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_TST_reg(Reg m, Reg n) {
+    const auto result = ir.And(ir.GetRegister(n), ir.GetRegister(m));
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// RSBS <Rd>, <Rn>, #0
+// Rd can never encode R15.
+bool ThumbTranslatorVisitor::thumb16_RSB_imm(Reg n, Reg d) {
+    const auto result = ir.SubWithCarry(ir.Imm32(0), ir.GetRegister(n), ir.Imm1(1));
+    ir.SetRegister(d, result.result);
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// CMP <Rn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_CMP_reg_t1(Reg m, Reg n) {
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(1));
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// CMN <Rn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_CMN_reg(Reg m, Reg n) {
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(0));
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// ORRS <Rdn>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_ORR_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.Or(ir.GetRegister(m), ir.GetRegister(n));
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// MULS <Rdn>, <Rm>, <Rdn>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_MUL_reg(Reg n, Reg d_m) {
+    const Reg d = d_m;
+    const Reg m = d_m;
+    const auto result = ir.Mul(ir.GetRegister(m), ir.GetRegister(n));
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// BICS <Rdn>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_BIC_reg(Reg m, Reg d_n) {
+    const Reg d = d_n;
+    const Reg n = d_n;
+    const auto result = ir.And(ir.GetRegister(n), ir.Not(ir.GetRegister(m)));
+
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// MVNS <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_MVN_reg(Reg m, Reg d) {
+    const auto result = ir.Not(ir.GetRegister(m));
+    ir.SetRegister(d, result);
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    return true;
+}
+
+// ADD <Rdn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_ADD_reg_t2(bool d_n_hi, Reg m, Reg d_n_lo) {
+    const Reg d_n = d_n_hi ? (d_n_lo + 8) : d_n_lo;
+    const Reg n = d_n;
+    if (n == Reg::PC && m == Reg::PC) {
+        return UnpredictableInstruction();
+    }
+
+    const Reg d = d_n;
+    const auto result = ir.AddWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(0));
+    if (d == Reg::PC) {
+        ir.ALUWritePC(result.result);
+        // Return to dispatch as we can't predict what PC is going to be. Stop compilation.
+        ir.SetTerm(IR::Term::FastDispatchHint{});
+        return false;
+    } else {
+        ir.SetRegister(d, result.result);
+        return true;
+    }
+}
+
+// CMP <Rn>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_CMP_reg_t2(bool n_hi, Reg m, Reg n_lo) {
+    const Reg n = n_hi ? (n_lo + 8) : n_lo;
+    if (n < Reg::R8 && m < Reg::R8) {
+        return UnpredictableInstruction();
+    }
+    if (n == Reg::PC || m == Reg::PC) {
+        return UnpredictableInstruction();
+    }
+
+    const auto result = ir.SubWithCarry(ir.GetRegister(n), ir.GetRegister(m), ir.Imm1(1));
+    ir.SetNFlag(ir.MostSignificantBit(result.result));
+    ir.SetZFlag(ir.IsZero(result.result));
+    ir.SetCFlag(result.carry);
+    ir.SetVFlag(result.overflow);
+    return true;
+}
+
+// MOV <Rd>, <Rm>
+bool ThumbTranslatorVisitor::thumb16_MOV_reg(bool d_hi, Reg m, Reg d_lo) {
+    const Reg d = d_hi ? (d_lo + 8) : d_lo;
+    const auto result = ir.GetRegister(m);
+
+    if (d == Reg::PC) {
+        ir.ALUWritePC(result);
+        ir.SetTerm(IR::Term::FastDispatchHint{});
+        return false;
+    } else {
+        ir.SetRegister(d, result);
+        return true;
+    }
+}
+
+// LDR <Rt>, <label>
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDR_literal(Reg t, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend() << 2;
+    const u32 address = ir.AlignPC(4) + imm32;
+    const auto data = ir.ReadMemory32(ir.Imm32(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// STR <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STR_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.GetRegister(t);
+
+    ir.WriteMemory32(address, data);
+    return true;
+}
+
+// STRH <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STRH_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.LeastSignificantHalf(ir.GetRegister(t));
+
+    ir.WriteMemory16(address, data);
+    return true;
+}
+
+// STRB <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STRB_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.LeastSignificantByte(ir.GetRegister(t));
+
+    ir.WriteMemory8(address, data);
+    return true;
+}
+
+// LDRSB <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDRSB_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.SignExtendByteToWord(ir.ReadMemory8(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// LDR <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDR_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.ReadMemory32(address);
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// LDRH <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDRH_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.ZeroExtendHalfToWord(ir.ReadMemory16(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// LDRB <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDRB_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.ZeroExtendByteToWord(ir.ReadMemory8(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// LDRH <Rt>, [<Rn>, <Rm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDRSH_reg(Reg m, Reg n, Reg t) {
+    const auto address = ir.Add(ir.GetRegister(n), ir.GetRegister(m));
+    const auto data = ir.SignExtendHalfToWord(ir.ReadMemory16(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// STR <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STR_imm_t1(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend() << 2;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.GetRegister(t);
+
+    ir.WriteMemory32(address, data);
+    return true;
+}
+
+// LDR <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDR_imm_t1(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend() << 2;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.ReadMemory32(address);
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// STRB <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STRB_imm(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend();
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.LeastSignificantByte(ir.GetRegister(t));
+
+    ir.WriteMemory8(address, data);
+    return true;
+}
+
+// LDRB <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDRB_imm(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend();
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.ZeroExtendByteToWord(ir.ReadMemory8(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// STRH <Rt>, [<Rn>, #<imm5>]
+bool ThumbTranslatorVisitor::thumb16_STRH_imm(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend() << 1;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.LeastSignificantHalf(ir.GetRegister(t));
+
+    ir.WriteMemory16(address, data);
+    return true;
+}
+
+// LDRH <Rt>, [<Rn>, #<imm5>]
+bool ThumbTranslatorVisitor::thumb16_LDRH_imm(Imm<5> imm5, Reg n, Reg t) {
+    const u32 imm32 = imm5.ZeroExtend() << 1;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.ZeroExtendHalfToWord(ir.ReadMemory16(address));
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// STR <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_STR_imm_t2(Reg t, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend() << 2;
+    const Reg n = Reg::SP;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.GetRegister(t);
+
+    ir.WriteMemory32(address, data);
+    return true;
+}
+
+// LDR <Rt>, [<Rn>, #<imm>]
+// Rt cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_LDR_imm_t2(Reg t, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend() << 2;
+    const Reg n = Reg::SP;
+    const auto address = ir.Add(ir.GetRegister(n), ir.Imm32(imm32));
+    const auto data = ir.ReadMemory32(address);
+
+    ir.SetRegister(t, data);
+    return true;
+}
+
+// ADR <Rd>, <label>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_ADR(Reg d, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend() << 2;
+    const auto result = ir.Imm32(ir.AlignPC(4) + imm32);
+
+    ir.SetRegister(d, result);
+    return true;
+}
+
+// ADD <Rd>, SP, #<imm>
+bool ThumbTranslatorVisitor::thumb16_ADD_sp_t1(Reg d, Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend() << 2;
+    const auto result = ir.AddWithCarry(ir.GetRegister(Reg::SP), ir.Imm32(imm32), ir.Imm1(0));
+
+    ir.SetRegister(d, result.result);
+    return true;
+}
+
+// ADD SP, SP, #<imm>
+bool ThumbTranslatorVisitor::thumb16_ADD_sp_t2(Imm<7> imm7) {
+    const u32 imm32 = imm7.ZeroExtend() << 2;
+    const Reg d = Reg::SP;
+    const auto result = ir.AddWithCarry(ir.GetRegister(Reg::SP), ir.Imm32(imm32), ir.Imm1(0));
+
+    ir.SetRegister(d, result.result);
+    return true;
+}
+
+// SUB SP, SP, #<imm>
+bool ThumbTranslatorVisitor::thumb16_SUB_sp(Imm<7> imm7) {
+    const u32 imm32 = imm7.ZeroExtend() << 2;
+    const Reg d = Reg::SP;
+    const auto result = ir.SubWithCarry(ir.GetRegister(Reg::SP), ir.Imm32(imm32), ir.Imm1(1));
+
+    ir.SetRegister(d, result.result);
+    return true;
+}
+
+// NOP<c>
+bool ThumbTranslatorVisitor::thumb16_NOP() {
+    return true;
+}
+
+// SEV<c>
+bool ThumbTranslatorVisitor::thumb16_SEV() {
+    return RaiseException(Exception::SendEvent);
+}
+
+// SEVL<c>
+bool ThumbTranslatorVisitor::thumb16_SEVL() {
+    return RaiseException(Exception::SendEventLocal);
+}
+
+// WFE<c>
+bool ThumbTranslatorVisitor::thumb16_WFE() {
+    return RaiseException(Exception::WaitForEvent);
+}
+
+// WFI<c>
+bool ThumbTranslatorVisitor::thumb16_WFI() {
+    return RaiseException(Exception::WaitForInterrupt);
+}
+
+// YIELD<c>
+bool ThumbTranslatorVisitor::thumb16_YIELD() {
+    return RaiseException(Exception::Yield);
+}
+
+// SXTH <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_SXTH(Reg m, Reg d) {
+    const auto half = ir.LeastSignificantHalf(ir.GetRegister(m));
+    ir.SetRegister(d, ir.SignExtendHalfToWord(half));
+    return true;
+}
+
+// SXTB <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_SXTB(Reg m, Reg d) {
+    const auto byte = ir.LeastSignificantByte(ir.GetRegister(m));
+    ir.SetRegister(d, ir.SignExtendByteToWord(byte));
+    return true;
+}
+
+// UXTH <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_UXTH(Reg m, Reg d) {
+    const auto half = ir.LeastSignificantHalf(ir.GetRegister(m));
+    ir.SetRegister(d, ir.ZeroExtendHalfToWord(half));
+    return true;
+}
+
+// UXTB <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_UXTB(Reg m, Reg d) {
+    const auto byte = ir.LeastSignificantByte(ir.GetRegister(m));
+    ir.SetRegister(d, ir.ZeroExtendByteToWord(byte));
+    return true;
+}
+
+// PUSH <reg_list>
+// reg_list cannot encode for R15.
+bool ThumbTranslatorVisitor::thumb16_PUSH(bool M, RegList reg_list) {
+    if (M) {
+        reg_list |= 1 << 14;
+    }
+    if (Common::BitCount(reg_list) < 1) {
+        return UnpredictableInstruction();
+    }
+
+    const u32 num_bytes_to_push = static_cast<u32>(4 * Common::BitCount(reg_list));
+    const auto final_address = ir.Sub(ir.GetRegister(Reg::SP), ir.Imm32(num_bytes_to_push));
+    auto address = final_address;
+    for (size_t i = 0; i < 16; i++) {
+        if (Common::Bit(i, reg_list)) {
+            // TODO: Deal with alignment
+            const auto Ri = ir.GetRegister(static_cast<Reg>(i));
+            ir.WriteMemory32(address, Ri);
+            address = ir.Add(address, ir.Imm32(4));
+        }
+    }
+
+    ir.SetRegister(Reg::SP, final_address);
+    // TODO(optimization): Possible location for an RSB push.
+    return true;
+}
+
+// POP <reg_list>
+bool ThumbTranslatorVisitor::thumb16_POP(bool P, RegList reg_list) {
+    if (P) {
+        reg_list |= 1 << 15;
+    }
+    if (Common::BitCount(reg_list) < 1) {
+        return UnpredictableInstruction();
+    }
+
+    auto address = ir.GetRegister(Reg::SP);
+    for (size_t i = 0; i < 15; i++) {
+        if (Common::Bit(i, reg_list)) {
+            // TODO: Deal with alignment
+            const auto data = ir.ReadMemory32(address);
+            ir.SetRegister(static_cast<Reg>(i), data);
+            address = ir.Add(address, ir.Imm32(4));
+        }
+    }
+
+    if (Common::Bit<15>(reg_list)) {
+        // TODO(optimization): Possible location for an RSB pop.
+        const auto data = ir.ReadMemory32(address);
+        ir.LoadWritePC(data);
+        address = ir.Add(address, ir.Imm32(4));
+        ir.SetRegister(Reg::SP, address);
+        ir.SetTerm(IR::Term::PopRSBHint{});
+        return false;
+    } else {
+        ir.SetRegister(Reg::SP, address);
+        return true;
+    }
+}
+
+// SETEND <endianness>
+bool ThumbTranslatorVisitor::thumb16_SETEND(bool E) {
+    if (E == ir.current_location.EFlag()) {
+        return true;
+    }
+
+    ir.SetTerm(IR::Term::LinkBlock{ir.current_location.AdvancePC(2).SetEFlag(E)});
+    return false;
+}
+
+// CPS{IE,ID} <a,i,f>
+// A CPS is treated as a NOP in User mode.
+bool ThumbTranslatorVisitor::thumb16_CPS(bool, bool, bool, bool) {
+    return true;
+}
+
+// REV <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_REV(Reg m, Reg d) {
+    ir.SetRegister(d, ir.ByteReverseWord(ir.GetRegister(m)));
+    return true;
+}
+
+// REV16 <Rd>, <Rm>
+// Rd cannot encode R15.
+// TODO: Consider optimizing
+bool ThumbTranslatorVisitor::thumb16_REV16(Reg m, Reg d) {
+    const auto Rm = ir.GetRegister(m);
+    const auto upper_half = ir.LeastSignificantHalf(ir.LogicalShiftRight(Rm, ir.Imm8(16), ir.Imm1(0)).result);
+    const auto lower_half = ir.LeastSignificantHalf(Rm);
+    const auto rev_upper_half = ir.ZeroExtendHalfToWord(ir.ByteReverseHalf(upper_half));
+    const auto rev_lower_half = ir.ZeroExtendHalfToWord(ir.ByteReverseHalf(lower_half));
+    const auto result = ir.Or(ir.LogicalShiftLeft(rev_upper_half, ir.Imm8(16), ir.Imm1(0)).result,
+                              rev_lower_half);
+
+    ir.SetRegister(d, result);
+    return true;
+}
+
+// REVSH <Rd>, <Rm>
+// Rd cannot encode R15.
+bool ThumbTranslatorVisitor::thumb16_REVSH(Reg m, Reg d) {
+    const auto rev_half = ir.ByteReverseHalf(ir.LeastSignificantHalf(ir.GetRegister(m)));
+    ir.SetRegister(d, ir.SignExtendHalfToWord(rev_half));
+    return true;
+}
+
+// BKPT #<imm8>
+bool ThumbTranslatorVisitor::thumb16_BKPT([[maybe_unused]] Imm<8> imm8) {
+    ir.ExceptionRaised(Exception::Breakpoint);
+    ir.SetTerm(IR::Term::CheckHalt{IR::Term::ReturnToDispatch{}});
+    return false;
+}
+
+// STM <Rn>!, <reg_list>
+bool ThumbTranslatorVisitor::thumb16_STMIA(Reg n, RegList reg_list) {
+    auto address = ir.GetRegister(n);
+    for (size_t i = 0; i < 8; i++) {
+        if (Common::Bit(i, reg_list)) {
+            const auto Ri = ir.GetRegister(static_cast<Reg>(i));
+            ir.WriteMemory32(address, Ri);
+            address = ir.Add(address, ir.Imm32(4));
+        }
+    }
+
+    ir.SetRegister(n, address);
+    return true;
+}
+
+// STM <Rn>!, <reg_list>
+bool ThumbTranslatorVisitor::thumb16_LDMIA(Reg n, RegList reg_list) {
+    const bool write_back = !Common::Bit(static_cast<size_t>(n), reg_list);
+    auto address = ir.GetRegister(n);
+
+    for (size_t i = 0; i < 8; i++) {
+        if (Common::Bit(i, reg_list)) {
+            const auto data = ir.ReadMemory32(address);
+            ir.SetRegister(static_cast<Reg>(i), data);
+            address = ir.Add(address, ir.Imm32(4));
+        }
+    }
+
+    if (write_back) {
+        ir.SetRegister(n, address);
+    }
+    return true;
+}
+
+// CB{N}Z <Rn>, <label>
+bool ThumbTranslatorVisitor::thumb16_CBZ_CBNZ(bool nonzero, Imm<1> i, Imm<5> imm5, Reg n) {
+    const u32 imm = concatenate(i, imm5, Imm<1>{0}).ZeroExtend();
+    const IR::U32 rn = ir.GetRegister(n);
+
+    ir.SetCheckBit(ir.IsZero(rn));
+
+    const auto [cond_pass, cond_fail] = [this, imm, nonzero] {
+        const u32 target = ir.PC() + imm;
+        const auto skip = IR::Term::LinkBlock{ir.current_location.AdvancePC(2)};
+        const auto branch = IR::Term::LinkBlock{ir.current_location.AdvancePC(target)};
+
+        if (nonzero) {
+            return std::make_pair(skip, branch);
+        } else {
+            return std::make_pair(branch, skip);
+        }
+    }();
+
+     ir.SetTerm(IR::Term::CheckBit{cond_pass, cond_fail});
+    return false;
+}
+
+bool ThumbTranslatorVisitor::thumb16_UDF() {
+    return InterpretThisInstruction();
+}
+
+// BX <Rm>
+bool ThumbTranslatorVisitor::thumb16_BX(Reg m) {
+    ir.BXWritePC(ir.GetRegister(m));
+    if (m == Reg::R14)
+        ir.SetTerm(IR::Term::PopRSBHint{});
+    else
+        ir.SetTerm(IR::Term::FastDispatchHint{});
+    return false;
+}
+
+// BLX <Rm>
+bool ThumbTranslatorVisitor::thumb16_BLX_reg(Reg m) {
+    ir.PushRSB(ir.current_location.AdvancePC(2));
+    ir.BXWritePC(ir.GetRegister(m));
+    ir.SetRegister(Reg::LR, ir.Imm32((ir.current_location.PC() + 2) | 1));
+    ir.SetTerm(IR::Term::FastDispatchHint{});
+    return false;
+}
+
+// SVC #<imm8>
+bool ThumbTranslatorVisitor::thumb16_SVC(Imm<8> imm8) {
+    const u32 imm32 = imm8.ZeroExtend();
+    ir.BranchWritePC(ir.Imm32(ir.current_location.PC() + 2));
+    ir.PushRSB(ir.current_location.AdvancePC(2));
+    ir.CallSupervisor(ir.Imm32(imm32));
+    ir.SetTerm(IR::Term::CheckHalt{IR::Term::PopRSBHint{}});
+    return false;
+}
+
+// B<cond> <label>
+bool ThumbTranslatorVisitor::thumb16_B_t1(Cond cond, Imm<8> imm8) {
+    if (cond == Cond::AL) {
+        return thumb16_UDF();
+    }
+
+    const s32 imm32 = static_cast<s32>((imm8.SignExtend<u32>() << 1) + 4);
+    const auto then_location = ir.current_location.AdvancePC(imm32);
+    const auto else_location = ir.current_location.AdvancePC(2);
+
+    ir.SetTerm(IR::Term::If{cond, IR::Term::LinkBlock{then_location}, IR::Term::LinkBlock{else_location}});
+    return false;
+}
+
+// B <label>
+bool ThumbTranslatorVisitor::thumb16_B_t2(Imm<11> imm11) {
+    const s32 imm32 = static_cast<s32>((imm11.SignExtend<u32>() << 1) + 4);
+    const auto next_location = ir.current_location.AdvancePC(imm32);
+
+    ir.SetTerm(IR::Term::LinkBlock{next_location});
+    return false;
+}
+
+} // namespace Dynarmic::A32

src/frontend/A32/translate/impl/thumb32.cpp

@@ -0,0 +1,43 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2016 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include "translate_thumb.h"
+
+namespace Dynarmic::A32 {
+
+// BL <label>
+bool ThumbTranslatorVisitor::thumb32_BL_imm(Imm<11> hi, Imm<11> lo) {
+    ir.PushRSB(ir.current_location.AdvancePC(4));
+    ir.SetRegister(Reg::LR, ir.Imm32((ir.current_location.PC() + 4) | 1));
+
+    const s32 imm32 = static_cast<s32>((concatenate(hi, lo).SignExtend<u32>() << 1) + 4);
+    const auto new_location = ir.current_location.AdvancePC(imm32);
+    ir.SetTerm(IR::Term::LinkBlock{new_location});
+    return false;
+}
+
+// BLX <label>
+bool ThumbTranslatorVisitor::thumb32_BLX_imm(Imm<11> hi, Imm<11> lo) {
+    if (lo.Bit<0>()) {
+        return UnpredictableInstruction();
+    }
+
+    ir.PushRSB(ir.current_location.AdvancePC(4));
+    ir.SetRegister(Reg::LR, ir.Imm32((ir.current_location.PC() + 4) | 1));
+
+    const s32 imm32 = static_cast<s32>(concatenate(hi, lo).SignExtend<u32>() << 1);
+    const auto new_location = ir.current_location
+                                .SetPC(ir.AlignPC(4) + imm32)
+                                .SetTFlag(false);
+    ir.SetTerm(IR::Term::LinkBlock{new_location});
+    return false;
+}
+
+bool ThumbTranslatorVisitor::thumb32_UDF() {
+    return thumb16_UDF();
+}
+
+} // namespace Dynarmic::A32

src/frontend/A32/translate/impl/translate_thumb.h

@@ -0,0 +1,119 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2016 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#pragma once
+
+#include "common/bit_util.h"
+#include "frontend/imm.h"
+#include "frontend/A32/ir_emitter.h"
+#include "frontend/A32/location_descriptor.h"
+#include "frontend/A32/translate/translate.h"
+
+namespace Dynarmic::A32 {
+
+enum class Exception;
+
+struct ThumbTranslatorVisitor final {
+    using instruction_return_type = bool;
+
+    explicit ThumbTranslatorVisitor(IR::Block& block, LocationDescriptor descriptor, const TranslationOptions& options) : ir(block, descriptor), options(options) {
+        ASSERT_MSG(descriptor.TFlag(), "The processor must be in Thumb mode");
+    }
+
+    A32::IREmitter ir;
+    TranslationOptions options;
+
+    bool InterpretThisInstruction();
+    bool UnpredictableInstruction();
+    bool RaiseException(Exception exception);
+
+    // thumb16
+    bool thumb16_LSL_imm(Imm<5> imm5, Reg m, Reg d);
+    bool thumb16_LSR_imm(Imm<5> imm5, Reg m, Reg d);
+    bool thumb16_ASR_imm(Imm<5> imm5, Reg m, Reg d);
+    bool thumb16_ADD_reg_t1(Reg m, Reg n, Reg d);
+    bool thumb16_SUB_reg(Reg m, Reg n, Reg d);
+    bool thumb16_ADD_imm_t1(Imm<3> imm3, Reg n, Reg d);
+    bool thumb16_SUB_imm_t1(Imm<3> imm3, Reg n, Reg d);
+    bool thumb16_MOV_imm(Reg d, Imm<8> imm8);
+    bool thumb16_CMP_imm(Reg n, Imm<8> imm8);
+    bool thumb16_ADD_imm_t2(Reg d_n, Imm<8> imm8);
+    bool thumb16_SUB_imm_t2(Reg d_n, Imm<8> imm8);
+    bool thumb16_AND_reg(Reg m, Reg d_n);
+    bool thumb16_EOR_reg(Reg m, Reg d_n);
+    bool thumb16_LSL_reg(Reg m, Reg d_n);
+    bool thumb16_LSR_reg(Reg m, Reg d_n);
+    bool thumb16_ASR_reg(Reg m, Reg d_n);
+    bool thumb16_ADC_reg(Reg m, Reg d_n);
+    bool thumb16_SBC_reg(Reg m, Reg d_n);
+    bool thumb16_ROR_reg(Reg m, Reg d_n);
+    bool thumb16_TST_reg(Reg m, Reg n);
+    bool thumb16_RSB_imm(Reg n, Reg d);
+    bool thumb16_CMP_reg_t1(Reg m, Reg n);
+    bool thumb16_CMN_reg(Reg m, Reg n);
+    bool thumb16_ORR_reg(Reg m, Reg d_n);
+    bool thumb16_MUL_reg(Reg n, Reg d_m);
+    bool thumb16_BIC_reg(Reg m, Reg d_n);
+    bool thumb16_MVN_reg(Reg m, Reg d);
+    bool thumb16_ADD_reg_t2(bool d_n_hi, Reg m, Reg d_n_lo);
+    bool thumb16_CMP_reg_t2(bool n_hi, Reg m, Reg n_lo);
+    bool thumb16_MOV_reg(bool d_hi, Reg m, Reg d_lo);
+    bool thumb16_LDR_literal(Reg t, Imm<8> imm8);
+    bool thumb16_STR_reg(Reg m, Reg n, Reg t);
+    bool thumb16_STRH_reg(Reg m, Reg n, Reg t);
+    bool thumb16_STRB_reg(Reg m, Reg n, Reg t);
+    bool thumb16_LDRSB_reg(Reg m, Reg n, Reg t);
+    bool thumb16_LDR_reg(Reg m, Reg n, Reg t);
+    bool thumb16_LDRH_reg(Reg m, Reg n, Reg t);
+    bool thumb16_LDRB_reg(Reg m, Reg n, Reg t);
+    bool thumb16_LDRSH_reg(Reg m, Reg n, Reg t);
+    bool thumb16_STR_imm_t1(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_LDR_imm_t1(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_STRB_imm(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_LDRB_imm(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_STRH_imm(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_LDRH_imm(Imm<5> imm5, Reg n, Reg t);
+    bool thumb16_STR_imm_t2(Reg t, Imm<8> imm8);
+    bool thumb16_LDR_imm_t2(Reg t, Imm<8> imm8);
+    bool thumb16_ADR(Reg d, Imm<8> imm8);
+    bool thumb16_ADD_sp_t1(Reg d, Imm<8> imm8);
+    bool thumb16_ADD_sp_t2(Imm<7> imm7);
+    bool thumb16_SUB_sp(Imm<7> imm7);
+    bool thumb16_NOP();
+    bool thumb16_SEV();
+    bool thumb16_SEVL();
+    bool thumb16_WFE();
+    bool thumb16_WFI();
+    bool thumb16_YIELD();
+    bool thumb16_SXTH(Reg m, Reg d);
+    bool thumb16_SXTB(Reg m, Reg d);
+    bool thumb16_UXTH(Reg m, Reg d);
+    bool thumb16_UXTB(Reg m, Reg d);
+    bool thumb16_PUSH(bool M, RegList reg_list);
+    bool thumb16_POP(bool P, RegList reg_list);
+    bool thumb16_SETEND(bool E);
+    bool thumb16_CPS(bool, bool, bool, bool);
+    bool thumb16_REV(Reg m, Reg d);
+    bool thumb16_REV16(Reg m, Reg d);
+    bool thumb16_REVSH(Reg m, Reg d);
+    bool thumb16_BKPT([[maybe_unused]] Imm<8> imm8);
+    bool thumb16_STMIA(Reg n, RegList reg_list);
+    bool thumb16_LDMIA(Reg n, RegList reg_list);
+    bool thumb16_CBZ_CBNZ(bool nonzero, Imm<1> i, Imm<5> imm5, Reg n);
+    bool thumb16_UDF();
+    bool thumb16_BX(Reg m);
+    bool thumb16_BLX_reg(Reg m);
+    bool thumb16_SVC(Imm<8> imm8);
+    bool thumb16_B_t1(Cond cond, Imm<8> imm8);
+    bool thumb16_B_t2(Imm<11> imm11);
+
+    // thumb32
+    bool thumb32_BL_imm(Imm<11> hi, Imm<11> lo);
+    bool thumb32_BLX_imm(Imm<11> hi, Imm<11> lo);
+    bool thumb32_UDF();
+};
+
+} // namespace Dynarmic::A32