diff --git a/forth/hal.fth b/forth/hal.fth
deleted file mode 100644
index 99835ca..0000000
--- a/forth/hal.fth
+++ /dev/null
@@ -1,16 +0,0 @@
-1 constant bit0
-2 constant bit1
-4 constant bit2
-8 constant bit3
-16 constant bit4
-32 constant bit5
-64 constant bit6
-128 constant bit7
-
-1 constant port1
-2 constant port2
-3 constant port3
-4 constant port4
-5 constant port5
-
-: pindef