#5 Fix for wrong instruction cycle count, all instructions took one c…

…ycle too many
hagronnestad · May 9, 2020 · 1800f64 · 1800f64
1 parent 8d6c6a2
commit 1800f64
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/MicroProcessor/Cpu6502/Cpu.cs b/MicroProcessor/Cpu6502/Cpu.cs
@@ -244,7 +244,7 @@ public void Step(bool ignoreCycles = false) {
 
             // Keeps track of needed cycles to complete the current instruction
             // ignoreCycles = true is used to step the CPU with a debugger
-            if (!ignoreCycles) _cyclesRemainingCurrentInstruction += OpCode.Cycles;
+            if (!ignoreCycles) _cyclesRemainingCurrentInstruction += OpCode.Cycles - 1;
         }
 
         public void Reset() {