From 13cffcd6a2a910eb28ea62e7b7531daa625f6c20 Mon Sep 17 00:00:00 2001
From: Scott Percival
Date: Sat, 30 Nov 2019 09:42:14 +0800
Subject: DIRECTOR: Add stubs for c_jump and c_jumpif

---
 engines/director/lingo/lingo-bytecode.cpp | 15 +++++++++++++--
 engines/director/lingo/lingo-code.cpp     | 11 +++++++++++
 engines/director/lingo/lingo.h            |  2 ++
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/engines/director/lingo/lingo-bytecode.cpp b/engines/director/lingo/lingo-bytecode.cpp
index 6155c3d2b4..c08a8457fa 100644
--- a/engines/director/lingo/lingo-bytecode.cpp
+++ b/engines/director/lingo/lingo-bytecode.cpp
@@ -58,12 +58,17 @@ static LingoV4Bytecode lingoV4[] = {
 	{ 0x43, Lingo::c_arraypush, "b" },
 	{ 0x44, Lingo::c_constpush, "bv" },
 	{ 0x45, Lingo::c_symbolpush, "b" },
+	{ 0x53, Lingo::c_jump, "bj" },
+	{ 0x54, Lingo::c_jump, "bnj" },
+	{ 0x55, Lingo::c_jumpif, "bj" },
 	{ 0x5c, Lingo::c_v4theentitypush, "b" },
 	{ 0x5d, Lingo::c_v4theentityassign, "b" },
 	{ 0x81, Lingo::c_intpush, "w" },
 	{ 0x82, Lingo::c_argspush, "w" },
 	{ 0x83, Lingo::c_arraypush, "w" },
 	{ 0x84, Lingo::c_constpush, "wv" },
+	{ 0x93, Lingo::c_jump, "wj" },
+	{ 0x95, Lingo::c_jumpif, "wj" },
 	{ 0, 0, 0 }
 };
 
@@ -476,6 +481,7 @@ void Lingo::addCodeV4(Common::SeekableSubReadStreamEndian &stream, ScriptType ty
 
 		uint16 pointer = startOffset - codeStoreOffset;
 		Common::Array<uint32> offsetList;
+		Common::Array<uint32> jumpList;
 		while (pointer < startOffset + length - codeStoreOffset) {
 			uint8 opcode = codeStore[pointer];
 
@@ -502,10 +508,16 @@ void Lingo::addCodeV4(Common::SeekableSubReadStreamEndian &stream, ScriptType ty
 							break;
 						case 'v':
 							if (arg % 6) {
-								warning("Opcode 0x%02x arg %d not multiple of 6!", opcode, arg);
+								warning("Opcode 0x%02x arg %d not a multiple of 6!", opcode, arg);
 							}
 							arg /= 6;
 							break;
+						case 'n':
+							arg *= -1;
+							break;
+						case 'j':
+							jumpList.push_back(offsetList.size());
+							break;
 						default:
 							break;
 						}
@@ -540,7 +552,6 @@ void Lingo::addCodeV4(Common::SeekableSubReadStreamEndian &stream, ScriptType ty
 				}
 			}
 		}
-
 	}
 	free(codeStore);
 }
diff --git a/engines/director/lingo/lingo-code.cpp b/engines/director/lingo/lingo-code.cpp
index ff9ae2428a..0fc99b344f 100644
--- a/engines/director/lingo/lingo-code.cpp
+++ b/engines/director/lingo/lingo-code.cpp
@@ -108,6 +108,8 @@ static struct FuncDescr {
 	{ Lingo::c_lt,			"c_lt",			"" },
 	{ Lingo::c_ge,			"c_ge",			"" },
 	{ Lingo::c_le,			"c_le",			"" },
+	{ Lingo::c_jump,		"c_jump",		"i" },
+	{ Lingo::c_jumpif,		"c_jumpif",		"i" },
 	{ Lingo::c_repeatwhilecode,"c_repeatwhilecode","oo" },
 	{ Lingo::c_repeatwithcode,"c_repeatwithcode","ooooos" },
 	{ Lingo::c_exitRepeat,	"c_exitRepeat",	"" },
@@ -892,6 +894,15 @@ void Lingo::c_le() {
 	g_lingo->push(d1);
 }
 
+void Lingo::c_jump() {
+	warning("STUB: c_jump()");
+}
+
+void Lingo::c_jumpif() {
+	g_lingo->pop();
+	warning("STUB: c_jumpif()");
+}
+
 void Lingo::c_repeatwhilecode(void) {
 	Datum d;
 	int savepc = g_lingo->_pc;
diff --git a/engines/director/lingo/lingo.h b/engines/director/lingo/lingo.h
index e4f8a5968f..937d2eff39 100644
--- a/engines/director/lingo/lingo.h
+++ b/engines/director/lingo/lingo.h
@@ -309,6 +309,8 @@ public:
 	static void c_lt();
 	static void c_ge();
 	static void c_le();
+	static void c_jump();
+	static void c_jumpif();
 	static void c_call();
 
 	void call(Common::String name, int nargs);
-- 
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