From bfcf570d6831fa54c587dd67a9f7c7449f335418 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sun, 7 Oct 2018 17:05:26 -0500
Subject: [PATCH] Try ISR_ALIASOF for Endstop Interrupts

---
 Marlin/src/HAL/HAL_AVR/endstop_interrupts.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Marlin/src/HAL/HAL_AVR/endstop_interrupts.h b/Marlin/src/HAL/HAL_AVR/endstop_interrupts.h
index 13b3f16e3..3eea650b1 100644
--- a/Marlin/src/HAL/HAL_AVR/endstop_interrupts.h
+++ b/Marlin/src/HAL/HAL_AVR/endstop_interrupts.h
@@ -85,22 +85,21 @@ void pciSetup(const int8_t pin) {
   SBI(PCICR, digitalPinToPCICRbit(pin)); // enable interrupt for the group
 }
 
-
 // Handlers for pin change interrupts
 #ifdef PCINT0_vect
   ISR(PCINT0_vect) { endstop_ISR(); }
 #endif
 
 #ifdef PCINT1_vect
-  ISR(PCINT1_vect) { endstop_ISR(); }
+  ISR(PCINT1_vect, ISR_ALIASOF(PCINT0_vect));
 #endif
 
 #ifdef PCINT2_vect
-  ISR(PCINT2_vect) { endstop_ISR(); }
+  ISR(PCINT2_vect, ISR_ALIASOF(PCINT0_vect));
 #endif
 
 #ifdef PCINT3_vect
-  ISR(PCINT3_vect) { endstop_ISR(); }
+  ISR(PCINT3_vect, ISR_ALIASOF(PCINT0_vect));
 #endif
 
 void setup_endstop_interrupts( void ) {