From 512f80552eefa34c56f61fbb6207108a6802ec62 Mon Sep 17 00:00:00 2001
From: James Brown
Date: Sun, 3 Nov 2002 15:12:39 +0000
Subject: Indy3 only uses the low 4 bits of a variable

svn-id: r5393
---
 scumm/script.cpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'scumm')

diff --git a/scumm/script.cpp b/scumm/script.cpp
index f66b31c3f1..fef4acf855 100644
--- a/scumm/script.cpp
+++ b/scumm/script.cpp
@@ -330,6 +330,7 @@ int Scumm::readVar(uint var)
 			var = 518;
 		}
 #endif
+
 		checkRange(_numVariables - 1, 0, var, "Variable %d out of range(r)");
 		return _vars[var];
 	}
@@ -362,7 +363,11 @@ int Scumm::readVar(uint var)
 	}
 
 	if (var & 0x4000) {
-		var &= 0xFFF;
+		if (_gameId == GID_INDY3_256) {
+			var &= 0xF;
+		} else {
+			var &= 0xFFF;
+		}
 		checkRange(0x10, 0, var, "Local variable %d out of range(r)");
 		return vm.localvar[_currentScript][var];
 	}
@@ -422,7 +427,12 @@ void Scumm::writeVar(uint var, int value)
 	}
 
 	if (var & 0x4000) {
-		var &= 0xFFF;
+		if (_gameId == GID_INDY3_256) {
+			var &= 0xF;
+		} else {
+			var &= 0xFFF;
+		}
+
 		checkRange(0x10, 0, var, "Local variable %d out of range(w)");
 		vm.localvar[_currentScript][var] = value;
 		return;
-- 
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