From efbc8cef53a98d78667ea75c5bc9b14df8d85721 Mon Sep 17 00:00:00 2001 From: MerryMage Date: Thu, 18 Feb 2021 20:41:40 +0000 Subject: [PATCH] thumb32: Implement ORN (immediate) --- src/frontend/A32/decoder/thumb32.inc | 2 +- ...mb32_data_processing_modified_immediate.cpp | 18 ++++++++++++++++++ .../A32/translate/impl/translate_thumb.h | 1 + 3 files changed, 20 insertions(+), 1 deletion(-) diff --git a/src/frontend/A32/decoder/thumb32.inc b/src/frontend/A32/decoder/thumb32.inc index 73a6d591..edba3f26 100644 --- a/src/frontend/A32/decoder/thumb32.inc +++ b/src/frontend/A32/decoder/thumb32.inc @@ -59,7 +59,7 @@ INST(thumb32_BIC_imm, "BIC (imm)", "11110v00001Snnnn0vvvdd INST(thumb32_MOV_imm, "MOV (imm)", "11110v00010S11110vvvddddvvvvvvvv") INST(thumb32_ORR_imm, "ORR (imm)", "11110v00010Snnnn0vvvddddvvvvvvvv") INST(thumb32_MVN_imm, "MVN (imm)", "11110v00011S11110vvvddddvvvvvvvv") -//INST(thumb32_ORN_imm, "ORN (imm)", "11110-00011-----0---------------") +INST(thumb32_ORN_imm, "ORN (imm)", "11110v00011Snnnn0vvvddddvvvvvvvv") //INST(thumb32_TEQ_imm, "TEQ (imm)", "11110-001001----0---1111--------") //INST(thumb32_EOR_imm, "EOR (imm)", "11110-00100-----0---------------") //INST(thumb32_CMN_imm, "CMN (imm)", "11110-010001----0---1111--------") diff --git a/src/frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp b/src/frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp index c09cb229..17507de4 100644 --- a/src/frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp +++ b/src/frontend/A32/translate/impl/thumb32_data_processing_modified_immediate.cpp @@ -108,4 +108,22 @@ bool ThumbTranslatorVisitor::thumb32_MVN_imm(Imm<1> i, bool S, Imm<3> imm3, Reg return true; } +bool ThumbTranslatorVisitor::thumb32_ORN_imm(Imm<1> i, bool S, Reg n, Imm<3> imm3, Reg d, Imm<8> imm8) { + ASSERT_MSG(n != Reg::PC, "Decode error"); + if (d == Reg::PC) { + return UnpredictableInstruction(); + } + + const auto imm_carry = ThumbExpandImm_C(i, imm3, imm8, ir.GetCFlag()); + const auto result = ir.Or(ir.GetRegister(n), ir.Imm32(~imm_carry.imm32)); + + ir.SetRegister(d, result); + if (S) { + ir.SetNFlag(ir.MostSignificantBit(result)); + ir.SetZFlag(ir.IsZero(result)); + ir.SetCFlag(imm_carry.carry); + } + return true; +} + } // namespace Dynarmic::A32 diff --git a/src/frontend/A32/translate/impl/translate_thumb.h b/src/frontend/A32/translate/impl/translate_thumb.h index 5bc0935c..a5465c35 100644 --- a/src/frontend/A32/translate/impl/translate_thumb.h +++ b/src/frontend/A32/translate/impl/translate_thumb.h @@ -155,6 +155,7 @@ struct ThumbTranslatorVisitor final { bool thumb32_MOV_imm(Imm<1> i, bool S, Imm<3> imm3, Reg d, Imm<8> imm8); bool thumb32_ORR_imm(Imm<1> i, bool S, Reg n, Imm<3> imm3, Reg d, Imm<8> imm8); bool thumb32_MVN_imm(Imm<1> i, bool S, Imm<3> imm3, Reg d, Imm<8> imm8); + bool thumb32_ORN_imm(Imm<1> i, bool S, Reg n, Imm<3> imm3, Reg d, Imm<8> imm8); // thumb32 miscellaneous control instructions bool thumb32_UDF();