From ef168abf269db218e2412c58ba0c032c3b7417f0 Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Tue, 2 Jul 2013 18:49:21 -0400
Subject: [PATCH] disassembler - calculate pc relative addresses

---
 cpu/CpuModule_Disassembler.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cpu/CpuModule_Disassembler.c b/cpu/CpuModule_Disassembler.c
index 5736710..a176802 100644
--- a/cpu/CpuModule_Disassembler.c
+++ b/cpu/CpuModule_Disassembler.c
@@ -373,9 +373,11 @@ static ULO cpuDis71(ULO pcp, STR *sdata, STR *soperands)
 static ULO cpuDis72(ULO pcp, STR *sdata, STR *soperands)
 {
   ULO disp = memoryReadWord(pcp);
+  ULO ea = pcp + disp;
+  if (disp & 0x8000) ea += 0xffff0000;
 
   cpuDisWordAppend(disp, sdata);
-  sprintf(cpuDisEoS(soperands), "$%.4X(PC)", disp);
+  sprintf(cpuDisEoS(soperands), "$%.4X ; $%.4X(PC)", ea, disp);
   return pcp + 2;
 }