From: Eddie Hung <eddie@fpgeh.com>
Date: Wed, 19 Feb 2020 19:09:37 +0000 (-0800)
Subject: verilog: add support for more delays than just rise/fall
X-Git-Tag: working-ls180~790^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ea4bd161b68cda30b5300b9275ebc0723896be02;p=yosys.git

verilog: add support for more delays than just rise/fall
---

diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index dc8f39e8d..dc58acdb0 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -995,7 +995,46 @@ specify_rise_fall:
 		$$->fall = *$4;
 		delete $2;
 		delete $4;
-	};
+	} |
+	'(' specify_triple ',' specify_triple ',' specify_triple ')' {
+		$$ = new specify_rise_fall;
+		$$->rise = *$2;
+		$$->fall = *$4;
+		delete $2;
+		delete $4;
+        delete $6;
+        log_file_warning(current_filename, get_line_num(), "Path delay expressions beyond rise/fall not currently supported. Ignoring.\n");
+	} |
+	'(' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ')' {
+		$$ = new specify_rise_fall;
+		$$->rise = *$2;
+		$$->fall = *$4;
+		delete $2;
+		delete $4;
+        delete $6;
+        delete $8;
+        delete $10;
+        delete $12;
+        log_file_warning(current_filename, get_line_num(), "Path delay expressions beyond rise/fall not currently supported. Ignoring.\n");
+	} |
+	'(' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ',' specify_triple ')' {
+		$$ = new specify_rise_fall;
+		$$->rise = *$2;
+		$$->fall = *$4;
+		delete $2;
+		delete $4;
+        delete $6;
+        delete $8;
+        delete $10;
+        delete $12;
+        delete $14;
+        delete $16;
+        delete $18;
+        delete $20;
+        delete $22;
+        delete $24;
+        log_file_warning(current_filename, get_line_num(), "Path delay expressions beyond rise/fall not currently supported. Ignoring.\n");
+	}
 
 specify_triple:
 	expr {