From 9a097e307f6fd4dde81ce44b33ab4de646f385da Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Fri, 3 May 2019 10:57:26 -0400
Subject: [PATCH] A32: Implement the ARM-mode variant of SEVL

---
 include/dynarmic/A32/config.h                            | 2 ++
 include/dynarmic/A64/config.h                            | 2 +-
 src/frontend/A32/decoder/arm.inc                         | 1 +
 src/frontend/A32/disassembler/disassembler_arm.cpp       | 3 +++
 src/frontend/A32/translate/translate_arm/hint.cpp        | 4 ++++
 src/frontend/A32/translate/translate_arm/translate_arm.h | 1 +
 6 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/dynarmic/A32/config.h b/include/dynarmic/A32/config.h
index c0bda863..1857c1bb 100644
--- a/include/dynarmic/A32/config.h
+++ b/include/dynarmic/A32/config.h
@@ -26,6 +26,8 @@ enum class Exception {
     UnpredictableInstruction,
     /// A SEV instruction was executed. The event register of all PEs should be set.
     SendEvent,
+    /// A SEVL instruction was executed. The event register of the current PE should be set.
+    SendEventLocal,
     /// A WFI instruction was executed. You may now enter a low-power state.
     WaitForInterrupt,
     /// A WFE instruction was executed. You may now enter a low-power state if the event register is clear.
diff --git a/include/dynarmic/A64/config.h b/include/dynarmic/A64/config.h
index f1f6c305..425004b5 100644
--- a/include/dynarmic/A64/config.h
+++ b/include/dynarmic/A64/config.h
@@ -34,7 +34,7 @@ enum class Exception {
     WaitForEvent,
     /// A SEV instruction was executed. The event register of all PEs should be set.
     SendEvent,
-    /// A SEV instruction was executed. The event register of the current PE should be set.
+    /// A SEVL instruction was executed. The event register of the current PE should be set.
     SendEventLocal,
     /// A YIELD instruction was executed.
     Yield,
diff --git a/src/frontend/A32/decoder/arm.inc b/src/frontend/A32/decoder/arm.inc
index 3017f97d..b131e39d 100644
--- a/src/frontend/A32/decoder/arm.inc
+++ b/src/frontend/A32/decoder/arm.inc
@@ -97,6 +97,7 @@ INST(arm_UXTAH,         "UXTAH",               "cccc01101111nnnnddddrr000111mmmm
 INST(arm_PLD_imm,       "PLD (imm)",           "11110101uz01nnnn1111iiiiiiiiiiii") // v5E for PLD; v7 for PLDW
 INST(arm_PLD_reg,       "PLD (reg)",           "11110111uz01nnnn1111iiiiitt0mmmm") // v5E for PLD; v7 for PLDW
 INST(arm_SEV,           "SEV",                 "----0011001000001111000000000100") // v6K
+INST(arm_SEVL,          "SEVL",                "----0011001000001111000000000101") // v8
 INST(arm_WFE,           "WFE",                 "----0011001000001111000000000010") // v6K
 INST(arm_WFI,           "WFI",                 "----0011001000001111000000000011") // v6K
 INST(arm_YIELD,         "YIELD",               "----0011001000001111000000000001") // v6K
diff --git a/src/frontend/A32/disassembler/disassembler_arm.cpp b/src/frontend/A32/disassembler/disassembler_arm.cpp
index 42bbcf50..3ba0edca 100644
--- a/src/frontend/A32/disassembler/disassembler_arm.cpp
+++ b/src/frontend/A32/disassembler/disassembler_arm.cpp
@@ -451,6 +451,9 @@ public:
     std::string arm_SEV() {
         return "sev";
     }
+    std::string arm_SEVL() {
+        return "sevl";
+    }
     std::string arm_WFE() {
         return "wfe";
     }
diff --git a/src/frontend/A32/translate/translate_arm/hint.cpp b/src/frontend/A32/translate/translate_arm/hint.cpp
index 8a098359..546a3f70 100644
--- a/src/frontend/A32/translate/translate_arm/hint.cpp
+++ b/src/frontend/A32/translate/translate_arm/hint.cpp
@@ -33,6 +33,10 @@ bool ArmTranslatorVisitor::arm_SEV() {
     return RaiseException(Exception::SendEvent);
 }
 
+bool ArmTranslatorVisitor::arm_SEVL() {
+    return RaiseException(Exception::SendEventLocal);
+}
+
 bool ArmTranslatorVisitor::arm_WFE() {
     return RaiseException(Exception::WaitForEvent);
 }
diff --git a/src/frontend/A32/translate/translate_arm/translate_arm.h b/src/frontend/A32/translate/translate_arm/translate_arm.h
index 5f941cc1..ddfd1850 100644
--- a/src/frontend/A32/translate/translate_arm/translate_arm.h
+++ b/src/frontend/A32/translate/translate_arm/translate_arm.h
@@ -167,6 +167,7 @@ struct ArmTranslatorVisitor final {
     bool arm_PLD_imm(bool add, bool R, Reg n, Imm<12> imm12);
     bool arm_PLD_reg(bool add, bool R, Reg n, Imm<5> imm5, ShiftType shift, Reg m);
     bool arm_SEV();
+    bool arm_SEVL();
     bool arm_WFE();
     bool arm_WFI();
     bool arm_YIELD();