thumb32: Implement TST (immediate)

src/CMakeLists.txt

@@ -156,6 +156,7 @@ if ("A32" IN_LIST DYNARMIC_FRONTENDS)
         frontend/A32/translate/impl/thumb32_branch.cpp
         frontend/A32/translate/impl/thumb32_control.cpp
         frontend/A32/translate/impl/thumb32_data_processing_register.cpp
+        frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp
         frontend/A32/translate/impl/thumb32_long_multiply.cpp
         frontend/A32/translate/impl/thumb32_misc.cpp
         frontend/A32/translate/impl/thumb32_multiply.cpp

src/frontend/A32/decoder/thumb32.inc

@@ -53,7 +53,7 @@
 //INST(thumb32_RSB_reg,        "RSB (reg)",                "11101011110---------------------")
 
 // Data Processing (Modified Immediate)
-//INST(thumb32_TST_imm,        "TST (imm)",                "11110-000001----0---1111--------")
+INST(thumb32_TST_imm,        "TST (imm)",                "11110v000001nnnn0vvv1111vvvvvvvv")
 //INST(thumb32_AND_imm,        "AND (imm)",                "11110-00000-----0---------------")
 //INST(thumb32_BIC_imm,        "BIC (imm)",                "11110-00001-----0---------------")
 //INST(thumb32_MOV_imm,        "MOV (imm)",                "11110000010-11110---------------")

src/frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp

@@ -0,0 +1,24 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2021 MerryMage
+ * SPDX-License-Identifier: 0BSD
+ */
+
+#include "frontend/A32/translate/impl/translate_thumb.h"
+
+namespace Dynarmic::A32 {
+
+bool ThumbTranslatorVisitor::thumb32_TST_imm(Imm<1> i, Reg n, Imm<3> imm3, Imm<8> imm8) {
+    if (n == Reg::PC) {
+        return UnpredictableInstruction();
+    }
+
+    const auto imm_carry = ThumbExpandImm_C(rotate, imm8, ir.GetCFlag());
+    const auto result = ir.And(ir.GetRegister(n), ir.Imm32(imm_carry.imm32));
+
+    ir.SetNFlag(ir.MostSignificantBit(result));
+    ir.SetZFlag(ir.IsZero(result));
+    ir.SetCFlag(imm_carry.carry);
+    return true;
+}
+
+} // namespace Dynarmic::A32

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

@@ -148,6 +148,9 @@ struct ThumbTranslatorVisitor final {
     bool thumb16_B_t1(Cond cond, Imm<8> imm8);
     bool thumb16_B_t2(Imm<11> imm11);
 
+    // thumb32 data processing (modified immediate) instructions
+    bool thumb32_TST_imm(Imm<1> i, Reg n, Imm<3> imm3, Imm<8> imm8);
+
     // thumb32 miscellaneous control instructions
     bool thumb32_UDF();