adding files

my-emco-compact-5/custom-m-codes/extend_m0.ngc

@@ -0,0 +1,37 @@
+; extend M0 to:
+; turn off spindle, flood, mist if optional stop = 1 and block delete is off
+;
+; on cycle restart:
+; turn on spindle
+; turn mist on if it was on before the m1
+; turn flood on if it was on before the m1
+
+o<extend_m0> sub
+    ;(debug, extend_m0:)
+
+    ; record whether mist/flood were on
+    #<mist> = #<_mist>
+    #<flood> = #<_flood>
+    #<spindle_on> = #<_spindle_on>
+
+    M5 M9 ; stop spindle, mist+flood off
+
+    m0 (refer to builtin m0)
+
+    ; restore mist, flood setting
+    o100 if [#<mist>]
+        m7
+    o100 endif
+
+    o200 if [#<flood>]
+        m8
+    o200 endif
+
+    o300 if [#<spindle_on>]
+        m3 ; spindle on
+    o300 endif
+
+    ;(debug, extend_m0 done)
+
+o<extend_m0> endsub
+m2