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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# IMD_ESCAPE -- Pass a device dependent instruction on to the kernel.
+# The IDK kernel does not have any escape functions at present.
+
+procedure imd_escape (fn, instruction, nwords)
+
+int fn # function code
+short instruction[ARB] # instruction data words
+int nwords # length of instruction
+
+begin
+end