diff --git a/bsnes/processor/wdc65816/wdc65816.hpp b/bsnes/processor/wdc65816/wdc65816.hpp
index 80556a63..3821794d 100755
--- a/bsnes/processor/wdc65816/wdc65816.hpp
+++ b/bsnes/processor/wdc65816/wdc65816.hpp
@@ -20,7 +20,7 @@ struct WDC65816 {
   virtual auto readDisassembler(uint addr) -> uint8 { return 0; }
 
   inline auto irq() const -> bool { return r.irq; }
-  virtual inline auto irq(bool line) -> void { r.irq = line; }
+  inline auto irq(bool line) -> void { r.irq = line; }
 
   using r8 = uint8;
 
diff --git a/bsnes/sfc/cpu/cpu.hpp b/bsnes/sfc/cpu/cpu.hpp
index a22b9fef..bac32b3e 100644
--- a/bsnes/sfc/cpu/cpu.hpp
+++ b/bsnes/sfc/cpu/cpu.hpp
@@ -52,7 +52,6 @@ struct CPU : Processor::WDC65816, Thread, PPUcounter {
   alwaysinline auto dmaEdge() -> void;
 
   //irq.cpp
-  auto irq(bool line) -> void override;
   alwaysinline auto pollInterrupts() -> void;
   auto nmitimenUpdate(uint8 data) -> void;
   auto rdnmi() -> bool;
diff --git a/bsnes/sfc/cpu/irq.cpp b/bsnes/sfc/cpu/irq.cpp
index b0bb88c6..b9564ba1 100644
--- a/bsnes/sfc/cpu/irq.cpp
+++ b/bsnes/sfc/cpu/irq.cpp
@@ -1,11 +1,3 @@
-//external interrupt line changed.
-auto CPU::irq(bool line) -> void {
-  WDC65816::irq(line);
-  if(line) {
-    status.irqTransition = 1;
-  }
-}
-
 //called once every four clock cycles;
 //as NMI steps by scanlines (divisible by 4) and IRQ by PPU 4-cycle dots.
 //
@@ -80,7 +72,7 @@ auto CPU::nmiTest() -> bool {
 }
 
 auto CPU::irqTest() -> bool {
-  if(!status.irqTransition) return 0;
+  if(!status.irqTransition && !r.irq) return 0;
   status.irqTransition = 0;
   r.wai = 0;
   return !r.p.i;