From b60fe860e0291bbe7b433ccf0e983fa76dabe3cd Mon Sep 17 00:00:00 2001
From: Mihai Bazon <mihai@bazon.net>
Date: Sat, 16 Aug 2014 11:57:54 +0300
Subject: [PATCH] Fix reading UInt32

In JS, 0x80 << 24 yields a negative result.  Also, 0x80000000|0 < 0.
Bitwise ops should be avoided for very long unsigned ints.
---
 lib/data.coffee | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/data.coffee b/lib/data.coffee
index 75723a3..38db184 100644
--- a/lib/data.coffee
+++ b/lib/data.coffee
@@ -19,11 +19,11 @@ class Data
     @writeByte if val then 1 else 0
     
   readUInt32: ->
-    b1 = @readByte() << 24
+    b1 = @readByte() * 0x1000000
     b2 = @readByte() << 16
     b3 = @readByte() << 8
     b4 = @readByte()
-    b1 | b2 | b3 | b4
+    b1 + b2 + b3 + b4
   
   writeUInt32: (val) ->
     @writeByte (val >>> 24) & 0xff
@@ -137,4 +137,4 @@ class Data
     for byte in bytes
       @writeByte byte
     
-module.exports = Data
\ No newline at end of file
+module.exports = Data