Diff being reverted:
diff --git a/cnc/01-setup.c b/cnc/01-setup.c
index 4eb07fa..be7b091 100644
--- a/cnc/01-setup.c
+++ b/cnc/01-setup.c
@@ -9,10 +9,10 @@ uint8_t const pin_adir  = 1U << 0;
 #define portb_out pin_adir
 
 // PORTC
-uint8_t const pin_xend  = 1U << 0;
-uint8_t const pin_yend  = 1U << 1;
-uint8_t const pin_zend  = 1U << 2;
-uint8_t const pin_aend  = 1U << 3;
+uint8_t const pin_xend  = 1U << 3;
+uint8_t const pin_yend  = 1U << 2;
+uint8_t const pin_zend  = 1U << 1;
+uint8_t const pin_aend  = 1U << 0;
 uint8_t const pin_enab  = 1U << 5;
 
 #define portc_use (pin_xend | pin_yend | pin_zend | pin_aend | pin_enab)