From b83f4f48d6ae5ed3c976d873994ec2482cbc9878 Mon Sep 17 00:00:00 2001
From: Jonathan Russell <russj159@yahoo.co.uk>
Date: Sat, 15 Sep 2018 00:25:13 +0100
Subject: [PATCH] - implemented SS_R, LCS_R, and LKS_R

---
 src/scripting/vm/jit.cpp      |  3 ---
 src/scripting/vm/jit_load.cpp | 31 +++++++++++++++++++++++++++++--
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/src/scripting/vm/jit.cpp b/src/scripting/vm/jit.cpp
index 032ff68d38..8836cf8fc2 100644
--- a/src/scripting/vm/jit.cpp
+++ b/src/scripting/vm/jit.cpp
@@ -150,10 +150,7 @@ bool JitCompiler::CanJit(VMScriptFunction *sfunc)
 		{
 		default:
 			break;
-		case OP_LKS_R:
 		case OP_LFP:
-		case OP_LCS_R:
-		case OP_SS_R:
 		case OP_IJMP:
 		case OP_TAIL:
 		case OP_TAIL_K:
diff --git a/src/scripting/vm/jit_load.cpp b/src/scripting/vm/jit_load.cpp
index df91cf492f..15a274f745 100644
--- a/src/scripting/vm/jit_load.cpp
+++ b/src/scripting/vm/jit_load.cpp
@@ -48,7 +48,22 @@ void JitCompiler::EmitLKF_R()
 
 void JitCompiler::EmitLKS_R()
 {
-	I_FatalError("EmitLKS_R not implemented\n");
+	auto ptr = cc.newIntPtr();
+	cc.mov(ptr, ToMemAddress(konsts));
+	auto offset = cc.newIntPtr();
+	cc.mov(offset, regD[B]);
+#ifdef ASMJIT_ARCH_X64
+	static_assert(sizeof(FString) == 8, "sizeof(FString) needs to be 8");
+	cc.shl(offset, 3);
+#else
+	static_assert(sizeof(FString) == 8, "sizeof(FString) needs to be 4");
+	cc.shl(offset, 2);
+#endif
+	cc.add(ptr, offset);
+	auto call = cc.call(ToMemAddress(reinterpret_cast<void*>(static_cast<void(*)(FString*, FString*)>(CallAssignString))),
+		asmjit::FuncSignature2<void, FString*, FString*>(asmjit::CallConv::kIdHostCDecl));
+	call->setArg(0, regS[A]);
+	call->setArg(1, ptr);
 }
 
 void JitCompiler::EmitLKP_R()
@@ -315,7 +330,19 @@ void JitCompiler::EmitLCS()
 
 void JitCompiler::EmitLCS_R()
 {
-	I_FatalError("EmitLCS_R not implemented\n");
+	EmitNullPointerThrow(B, X_READ_NIL);
+	auto ptr = cc.newIntPtr();
+	cc.mov(ptr, regA[B]);
+	auto tmp = cc.newIntPtr();
+	cc.mov(tmp, regD[C]);
+	cc.add(ptr, tmp);
+	auto loadLambda = [](FString* to, char** from) -> void {
+		*to = *from;
+	};
+	auto call = cc.call(ToMemAddress(reinterpret_cast<void*>(static_cast<void(*)(FString*, char**)>(loadLambda))),
+		asmjit::FuncSignature2<void, FString*, char**>(asmjit::CallConv::kIdHostCDecl));
+	call->setArg(0, regS[A]);
+	call->setArg(1, ptr);
 }
 
 void JitCompiler::EmitLBIT()