From d5f17448895b720443ea3b9504ffd9486af06165 Mon Sep 17 00:00:00 2001
From: Michal Stefanak <stefanak.michal@gmail.com>
Date: Sun, 25 Oct 2020 12:13:24 +0100
Subject: [PATCH] fixed Unpacker -TINY_INT in proper way

---
 .gitignore                     | 1 +
 src/PackStream/v1/Unpacker.php | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 9edc5cb..e4b4547 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea/
 .vscode/
 phpunit*.phar
+/index.php
diff --git a/src/PackStream/v1/Unpacker.php b/src/PackStream/v1/Unpacker.php
index 8d08d6e..368edf6 100644
--- a/src/PackStream/v1/Unpacker.php
+++ b/src/PackStream/v1/Unpacker.php
@@ -268,7 +268,7 @@ private function unpackInteger(int $marker, bool &$result = false): int
         if ($marker >> 7 == 0b0) { //+TINY_INT
             $output = $marker;
         } elseif ($marker >> 4 == 0b1111) { //-TINY_INT
-            $output = -16 + (0b11110000 ^ $marker);
+            $output = unpack('c', strrev(chr($marker)))[1] ?? 0;
         } elseif ($marker == 0xC8) { //INT_8
             $output = unpack('c', $this->next(1))[1] ?? 0;
         } elseif ($marker == 0xC9) { //INT_16