From: Bernhard Urban <lewurm@gmail.com>
Date: Sun, 11 Apr 2010 12:22:44 +0000 (+0200)
Subject: alu/div: weniger code und weniger logic elements
X-Git-Tag: review_abgabe~15
X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=commitdiff_plain;ds=sidebyside;h=cd6c796957a62bf9e35ebed2cb2f2598266f9036;p=hwmod.git

alu/div: weniger code und weniger logic elements

4% (423/10570) logic elements @ 81.59MHz, klingt schon mal besser :)
---

diff --git a/src/gen_pkg.vhd b/src/gen_pkg.vhd
index 6f1ff43..6fb4a46 100644
--- a/src/gen_pkg.vhd
+++ b/src/gen_pkg.vhd
@@ -14,18 +14,10 @@ end package gen_pkg;
 package body gen_pkg is
 	function find_msb(a : csigned) return natural is
 		variable r : natural := 0;
-		variable count : boolean := true;
 	begin
 		for i in (CBITS-1) downto 0 loop
-			if count then
-				if a(i) = '1' then
-					count := false;
-				else
-					r := r+1;
-				end if;
-			else
-				null;
-			end if;
+			exit when a(i) = '1';
+			r := r+1;
 		end loop;
 		return (CBITS - r);
 	end function find_msb;