diff --git a/chip-z80/nodenames.js b/chip-z80/nodenames.js
index 2dfdbc8..7981949 100644
--- a/chip-z80/nodenames.js
+++ b/chip-z80/nodenames.js
@@ -21,7 +21,11 @@ ab15: 20,
 _reset: 21,
 _wait: 22,
 _int: 23,
+int: 23,
+_irq: 23,
+irq: 23,
 _nmi: 24,
+nmi: 24,
 _busrq: 25,
 _m1: 26,
 _rd: 27,