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- cleaned up: removed lg2() and po2() to mips_types

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git-svn-id: http://moon:8086/svn/vhdl/trunk@387 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-03-15 20:08:16 +00:00
parent cd8b53c3f3
commit a332b172b3
2 changed files with 0 additions and 24 deletions
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lib/CPUs/MIPS/src/core/dcache.vhd
-12
View File
@@ -1,7 +1,6 @@
LIBRARY IEEE; LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.NUMERIC_STD.ALL; USE IEEE.NUMERIC_STD.ALL;
use IEEE.MATH_REAL.ALL;
library work; library work;
use work.mips_types.all; use work.mips_types.all;
@@ -77,17 +76,6 @@ COMPONENT dpram_2w2r is
); );
END COMPONENT; END COMPONENT;
function lg2(x : natural) return natural is
begin
return natural(ceil(log2(real(x))));
end lg2;
function po2(x : natural) return natural is
begin
return 2**lg2(x);
end po2;
constant word_index_width : natural := lg2(line_size); constant word_index_width : natural := lg2(line_size);
constant cache_index_width : natural := lg2(cache_size) - word_index_width; constant cache_index_width : natural := lg2(cache_size) - word_index_width;
constant tag_width : natural := 32 - word_index_width - cache_index_width - 2; constant tag_width : natural := 32 - word_index_width - cache_index_width - 2;
lib/CPUs/MIPS/src/core/icache.vhd
-12
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@@ -1,7 +1,6 @@
LIBRARY IEEE; LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.NUMERIC_STD.ALL; USE IEEE.NUMERIC_STD.ALL;
use IEEE.MATH_REAL.ALL;
library work; library work;
use work.mips_types.all; use work.mips_types.all;
@@ -51,17 +50,6 @@ COMPONENT dpram_1w1r
); );
END COMPONENT; END COMPONENT;
function lg2(x : natural) return natural is
begin
return natural(ceil(log2(real(x))));
end lg2;
function po2(x : natural) return natural is
begin
return 2**lg2(x);
end po2;
constant word_index_width : natural := lg2(line_size); constant word_index_width : natural := lg2(line_size);
constant cache_index_width : natural := lg2(cache_size) - word_index_width; constant cache_index_width : natural := lg2(cache_size) - word_index_width;
constant tag_width : natural := 32 - word_index_width - cache_index_width - 2; constant tag_width : natural := 32 - word_index_width - cache_index_width - 2;