+/*\r
+ * yosys -- Yosys Open SYnthesis Suite\r
+ *\r
+ * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>\r
+ * 2019 Eddie Hung <eddie@fpgeh.com>\r
+ * 2019 David Shah <dave@ds0.me>\r
+ *\r
+ * Permission to use, copy, modify, and/or distribute this software for any\r
+ * purpose with or without fee is hereby granted, provided that the above\r
+ * copyright notice and this permission notice appear in all copies.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES\r
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF\r
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR\r
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES\r
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN\r
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF\r
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\r
+ *\r
+ * ---\r
+ *\r
+ * Tech-mapping rules for decomposing arbitrarily-sized $mul cells\r
+ * into an equivalent collection of smaller `DSP_NAME cells (with the \r
+ * same interface as $mul) no larger than `DSP_[AB]_MAXWIDTH, attached \r
+ * to $shl and $add cells.\r
+ *\r
+ */\r
+\r