diff --git a/cpu.js b/cpu.js
index 804d01a..ca114d3 100644
--- a/cpu.js
+++ b/cpu.js
@@ -80,7 +80,8 @@ function CPU_65816() {
                       0x6c : JMP_absolute_indirect, 0x80 : BRA,
                       0xf0 : BEQ, 0xd0 : BNE, 0x90 : BCC, 0xb0 : BCS,
                       0x50 : BVC, 0x70 : BVS, 0x10 : BPL, 0x30 : BMI,
-                      0x69 : ADC_const };
+                      0x69 : ADC_const, 0x6d : ADC_absolute, 
+                      0x65 : ADC_direct_page };
 }
 
 var MMU = {
@@ -179,6 +180,37 @@ var ADC_const = {
   }
 };
 
+var ADC_absolute = {
+  bytes_required:function() {
+    return 3;
+  },
+  execute:function(cpu, bytes) {
+    var location = (bytes[1]<<8)|bytes[0];
+    if(cpu.p.m) {
+      ADC_const.execute(cpu, [cpu.mmu.read_byte(location)]);
+    } else {
+      var low_byte = cpu.mmu.read_byte(location);
+      var high_byte = cpu.mmu.read_byte(location+1);
+      ADC_const.execute(cpu, [low_byte, high_byte]);
+    }
+  }
+};
+
+var ADC_direct_page = {
+  bytes_required:function() {
+    return 2;
+  },
+  execute:function(cpu, bytes) {
+    if(cpu.p.m) {
+      ADC_const.execute(cpu, [cpu.mmu.read_byte(bytes[0])]);
+    } else {
+      var low_byte = cpu.mmu.read_byte(bytes[0]);
+      var high_byte = cpu.mmu.read_byte(bytes[0]+1);
+      ADC_const.execute(cpu, [low_byte, high_byte]);
+    }
+  }
+};
+
 var BMI = {
   bytes_required:function() {
     return 2;
diff --git a/test/tests.js b/test/tests.js
index b5074b3..4a43b9a 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -114,6 +114,66 @@ function test_adc() {
     equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
                        "using ADC");   
   });
+
+  test("Test ADC direct page with 8-bit numbers (m bit is 1)", function() {
+    var cpu = new CPU_65816();
+    cpu.execute("18fb18e230a90185ffa97f65ff");
+    equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
+                            "using ADC");
+    equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
+                       "using ADC");
+    equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
+                       "using ADC");
+    equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
+                       "using ADC");
+    equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
+                       "using ADC");   
+  });
+
+  test("Test ADC direct page with 16-bit numbers (m bit is 0)", function() {
+    var cpu = new CPU_65816();
+    cpu.execute("18fb18c230a9010085ffa9ff7f65ff")
+    equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
+                            "using ADC");
+    equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
+                       "using ADC");
+    equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
+                       "using ADC");
+    equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
+                       "using ADC");
+    equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
+                       "using ADC");   
+  });
+ 
+  test("Test ADC absolute with 8-bit numbers (m bit is 1)", function() {
+    var cpu = new CPU_65816();
+    cpu.execute("18fb18e230a9018dffffa97f6dffff");
+    equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
+                            "using ADC");
+    equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
+                       "using ADC");
+    equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
+                       "using ADC");
+    equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
+                       "using ADC");
+    equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
+                       "using ADC");   
+  });
+
+  test("Test ADC absolute with 16-bit numbers (m bit is 0)", function() {
+    var cpu = new CPU_65816();
+    cpu.execute("18fb18c230a901008dffffa9ff7f6dffff")
+    equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
+                            "using ADC");
+    equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
+                       "using ADC");
+    equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
+                       "using ADC");
+    equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
+                       "using ADC");
+    equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
+                       "using ADC");   
+  });
 }
 
 function test_branching() {