1 files changed, 71 insertions, 0 deletions
diff --git a/ARMeilleure/Instructions/InstEmitFlow32.cs b/ARMeilleure/Instructions/InstEmitFlow32.cs
new file mode 100644
index 00000000..27addc78
--- /dev/null
+++ b/ARMeilleure/Instructions/InstEmitFlow32.cs
@@ -0,0 +1,71 @@
+using ARMeilleure.Decoders;
+using ARMeilleure.State;
+using ARMeilleure.Translation;
+
+using static ARMeilleure.Instructions.InstEmitHelper;
+using static ARMeilleure.IntermediateRepresentation.OperandHelper;
+
+namespace ARMeilleure.Instructions
+{
+    static partial class InstEmit32
+    {
+        public static void B(ArmEmitterContext context)
+        {
+            IOpCode32BImm op = (IOpCode32BImm)context.CurrOp;
+
+            if (context.CurrBlock.Branch != null)
+            {
+                context.Branch(context.GetLabel((ulong)op.Immediate));
+            }
+            else
+            {
+                context.StoreToContext();
+
+                context.Return(Const(op.Immediate));
+            }
+        }
+
+        public static void Bl(ArmEmitterContext context)
+        {
+            Blx(context, x: false);
+        }
+
+        public static void Blx(ArmEmitterContext context)
+        {
+            Blx(context, x: true);
+        }
+
+        public static void Bx(ArmEmitterContext context)
+        {
+            IOpCode32BReg op = (IOpCode32BReg)context.CurrOp;
+
+            context.StoreToContext();
+
+            EmitBxWritePc(context, GetIntA32(context, op.Rm));
+        }
+
+        private static void Blx(ArmEmitterContext context, bool x)
+        {
+            IOpCode32BImm op = (IOpCode32BImm)context.CurrOp;
+
+            uint pc = op.GetPc();
+
+            bool isThumb = IsThumb(context.CurrOp);
+
+            uint currentPc = isThumb
+                ? op.GetPc() | 1
+                : op.GetPc() - 4;
+
+            SetIntOrSP(context, GetBankedRegisterAlias(context.Mode, RegisterAlias.Aarch32Lr), Const(currentPc));
+
+            // If x is true, then this is a branch with link and exchange.
+            // In this case we need to swap the mode between Arm <-> Thumb.
+            if (x)
+            {
+                SetFlag(context, PState.TFlag, Const(isThumb ? 0 : 1));
+            }
+
+            InstEmitFlowHelper.EmitCall(context, (ulong)op.Immediate);
+        }
+    }
+}
+\ No newline at end of file