fix: check data_len to fix questasim failure

6d4e5e3f · Fabien Le Mentec · c7eaeeb6 · 6d4e5e3f
Commit 6d4e5e3f authored Nov 18, 2015 by Fabien Le Mentec
Hide whitespace changes
Inline Side-by-side

Showing with 15 additions and 1 deletion

absenc_utils.vhd src/absenc_utils.vhd +15 -1

No files found.
--- a/src/absenc_utils.vhd
+++ b/src/absenc_utils.vhd
@@ -211,7 +211,21 @@ signal is_signed: std_logic;

 begin

-is_signed <= data_in(to_integer(data_len) - 1) when (data_len > 0) else '0';
+process(data_in, data_len)
+begin
+ -- fixme: modelsim fails without this check
+ -- synthesis translate_off
+ is_signed <= '0';
+ if data_len > 0 then
+ -- synthesis translate_on
+
+ is_signed <= data_in(to_integer(data_len) - 1);
+ 
+ -- synthesis translate_off
+ end if;
+ -- synthesis translate_on
+
+end process;

 process(is_signed, data_in)
 begin