adds noti rx

leandromoreira · Sep 11, 2014 · 319063e · 319063e
1 parent fe1284c
commit 319063e
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Showing 2 changed files with 28 additions and 0 deletions.
diff --git a/pchip16/cpu.py b/pchip16/cpu.py
@@ -1075,5 +1075,15 @@ def pal_rx(params):
 
         ########################
         ### Ex - Not/Neg ###
+        def noti_rx(params):
+            #Set RX to NOT HHLL
+            hhll = params['hhll']
+            self.r[params['x']] = ~hhll & 0xFFFF
+            return 4
+
+        instruction_table[0xE0] = {
+            'Mnemonic': 'NOTI RX, HHLL',
+            'execute': noti_rx
+        }
         ########################
         return instruction_table
diff --git a/tests/test_cpu.py b/tests/test_cpu.py
@@ -1513,3 +1513,21 @@ def test_PAL_RX():
     chip16.gpu.palette[0xF]['r'].should.be.eql(float(125)/255)
     chip16.gpu.palette[0xF]['g'].should.be.eql(float(150)/255)
     chip16.gpu.palette[0xF]['b'].should.be.eql(float(200)/255)
+
+def test_NOTI_rx():
+    #Set RX to NOT HHLL
+    chip16 = cpu.Cpu()
+
+    initial_address = 0x0000
+    chip16.pc = initial_address
+
+    chip16.write_8bit(initial_address, 0xE0) #op code
+    chip16.write_8bit(initial_address + 1, 0b00000001) #y,x
+    chip16.write_8bit(initial_address + 2, 0b11001100) #ll
+    chip16.write_8bit(initial_address + 3, 0b00110011) #hh
+
+    chip16.r[0x1] = 0xFACA
+
+    chip16.step()
+
+    chip16.r[0x1].should.be.eql(0b1100110000110011)