From 92546483084d76dc0a2f629e9a05c5fe45711829 Mon Sep 17 00:00:00 2001
From: Preston Skupinski <skupinsk@cse.msu.edu>
Date: Sat, 7 May 2011 15:16:37 -0400
Subject: [PATCH] added ADC direct page indexed x, ADC absolute indexed x, ADC
 absolute indexed y

---
 cpu.js | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/cpu.js b/cpu.js
index c693400..d9a968d 100644
--- a/cpu.js
+++ b/cpu.js
@@ -81,7 +81,10 @@ function CPU_65816() {
                       0xf0 : BEQ, 0xd0 : BNE, 0x90 : BCC, 0xb0 : BCS,
                       0x50 : BVC, 0x70 : BVS, 0x10 : BPL, 0x30 : BMI,
                       0x69 : ADC_const, 0x6d : ADC_absolute, 
-                      0x65 : ADC_direct_page, 0x72 : ADC_direct_page_indirect };
+                      0x65 : ADC_direct_page, 0x72 : ADC_direct_page_indirect,
+                      0x7d : ADC_absolute_indexed_x, 
+                      0x79 : ADC_absolute_indexed_y,
+                      0x75 : ADC_direct_page_indexed_x };
 }
 
 var MMU = {
@@ -230,6 +233,33 @@ var ADC_direct_page_indirect = {
   } 
 };
 
+ADC_absolute_indexed_x = {
+  bytes_required:function() {
+    return 3;
+  },
+  execute:function(cpu, bytes) {
+    ADC_absolute.execute(cpu, ((bytes[1]<<8)|bytes[0])+cpu.r.x);  
+  }
+};
+
+ADC_absolute_indexed_y = {
+  bytes_required:function() {
+    return 3;
+  },
+  execute:function(cpu, bytes) {
+    ADC_absolute.execute(cpu, ((bytes[1]<<8)|bytes[0])+cpu.r.y);  
+  }
+};
+
+ADC_direct_page_indexed_x = {
+  bytes_required:function() {
+    return 2;
+  },
+  execute:function(cpu, bytes) {
+    ADC_direct_page.execute(cpu, bytes[0]+cpu.r.x);  
+  }
+};
+
 var BMI = {
   bytes_required:function() {
     return 2;