From 36b9ab0e48b6893c057a954e1ef3181b452add1c Mon Sep 17 00:00:00 2001 From: gdkchan Date: Thu, 24 Jan 2019 23:59:53 -0200 Subject: Add ARM32 support on the translator (#561) * Remove ARM32 interpreter and add ARM32 support on the translator * Nits. * Rename Cond -> Condition * Align code again * Rename Data to Alu * Enable ARM32 support and handle undefined instructions * Use the IsThumb method to check if its a thumb opcode * Remove another 32-bits check --- ChocolArm64/Instructions/InstEmitFlowHelper.cs | 39 ++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 ChocolArm64/Instructions/InstEmitFlowHelper.cs (limited to 'ChocolArm64/Instructions/InstEmitFlowHelper.cs') diff --git a/ChocolArm64/Instructions/InstEmitFlowHelper.cs b/ChocolArm64/Instructions/InstEmitFlowHelper.cs new file mode 100644 index 00000000..cf093bb3 --- /dev/null +++ b/ChocolArm64/Instructions/InstEmitFlowHelper.cs @@ -0,0 +1,39 @@ +using ChocolArm64.Translation; +using System.Reflection.Emit; + +namespace ChocolArm64.Instructions +{ + static class InstEmitFlowHelper + { + public static void EmitCall(ILEmitterCtx context, long imm) + { + if (context.TryOptEmitSubroutineCall()) + { + //Note: the return value of the called method will be placed + //at the Stack, the return value is always a Int64 with the + //return address of the function. We check if the address is + //correct, if it isn't we keep returning until we reach the dispatcher. + context.Emit(OpCodes.Dup); + + context.EmitLdc_I8(context.CurrOp.Position + 4); + + ILLabel lblContinue = new ILLabel(); + + context.Emit(OpCodes.Beq_S, lblContinue); + context.Emit(OpCodes.Ret); + + context.MarkLabel(lblContinue); + + context.Emit(OpCodes.Pop); + + context.EmitLoadState(); + } + else + { + context.EmitLdc_I8(imm); + + context.Emit(OpCodes.Ret); + } + } + } +} -- cgit v1.2.3