From 570c51a594a06e7de2e1a3b264649c951b96af0f Mon Sep 17 00:00:00 2001
From: tuz358 <orca00358@gmail.com>
Date: Mon, 5 Mar 2018 15:11:51 +0900
Subject: [PATCH] Add int8_t read_int8(uint32_t addr) function

---
 include/memory.h | 1 +
 memory.cpp       | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/include/memory.h b/include/memory.h
index c4531e9..c1ed896 100644
--- a/include/memory.h
+++ b/include/memory.h
@@ -12,6 +12,7 @@ private:
 public:
   uint8_t *init(size_t memorysize);
   uint8_t read_uint8(uint32_t addr);
+  int8_t read_int8(uint32_t addr);
   uint32_t read_uint32(uint32_t addr);
   void write_uint8(uint32_t addr, uint8_t data);
   void write_uint32(uint32_t addr, uint32_t data);
diff --git a/memory.cpp b/memory.cpp
index fb35317..3bc3403 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -11,6 +11,10 @@ uint8_t Memory::read_uint8(uint32_t addr){
   return this->memory[addr];
 }
 
+int8_t Memory::read_int8(uint32_t addr){
+  return (int8_t)this->memory[addr];
+}
+
 uint32_t Memory::read_uint32(uint32_t addr){
   uint32_t data = 0x00;
   for (int i = 0;i < 4;i++) {