Minor changes

1 files changed, 6 insertions, 8 deletions

diff --git a/src/vcpu.c b/src/vcpu.c
index 1f36b68..11181f0 100644
--- a/src/vcpu.c
+++ b/src/vcpu.c
@@ -212,17 +212,15 @@ void VCPUExecute(){
         if(State.V[State.X]&0x0F == State.keypress&0xF){
           State.PC+=2;
         }
-        State.keypress=-1;
       }
+      State.keypress=-1;
     }else if(State.NN==0xA1){ // Skip if not keypress in VX
+      State.PC+=2; // First skip
       if(State.keypress >=0){
-        if(State.V[State.X]&0x0F != State.keypress&0xF){
-          State.PC+=2;
-        }
-        State.keypress=-1;
+        if(State.V[State.X]&0x0F == State.keypress&0x0F)
+          State.PC+=2; // Ignore skip if pressed
       }
-      else
-        State.PC+=2;
+      State.keypress=-1;
     }
     break;
     
@@ -237,8 +235,8 @@ void VCPUExecute(){
         State.V[State.X]=State.keypress&0xF;
         if(State.V[State.X]&0x0F != State.keypress&0xF){
           State.PC+=2;
-          State.keypress=-1;
         }
+        State.keypress=-1;
       }
       else
         State.PC-=2; // Go back to last instruction (loop until key is pressed)