From 4303c7276d5acb697718dd5a8b80faa7e2516477 Mon Sep 17 00:00:00 2001
From: Rob McMullen <rob.mcmullen@noaa.gov>
Date: Thu, 17 May 2018 13:49:33 -0700
Subject: [PATCH] Marked read_addr & write_addr as extern in 6502.h

---
 6502.c | 2 ++
 6502.h | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/6502.c b/6502.c
index 2323a83..3dddaaa 100644
--- a/6502.c
+++ b/6502.c
@@ -19,6 +19,8 @@ uint8_t * (*get_ptr[NUM_MODES])(); // addressing mode decoder table
 Instruction instructions[0x100]; // instruction data table
 Instruction inst; // the current instruction (used for convenience)
 int jumping; // used to check that we don't need to increment the PC after a jump
+void * read_addr;
+void * write_addr;
 
 /* Flag Checks */
 
diff --git a/6502.h b/6502.h
index 7565900..264624c 100644
--- a/6502.h
+++ b/6502.h
@@ -19,8 +19,8 @@ extern uint8_t SP; // points to first empty stack location
 extern uint8_t extra_cycles;
 extern uint64_t total_cycles;
 
-void * read_addr;
-void * write_addr;
+extern void * read_addr;
+extern void * write_addr;
 
 struct StatusBits{
 	bool carry:1; // bit 0