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-rw-r--r--zpu/hdl/zpu4/core/zpu_core_small.vhd112
1 files changed, 56 insertions, 56 deletions
diff --git a/zpu/hdl/zpu4/core/zpu_core_small.vhd b/zpu/hdl/zpu4/core/zpu_core_small.vhd
index 1df9546..757d056 100644
--- a/zpu/hdl/zpu4/core/zpu_core_small.vhd
+++ b/zpu/hdl/zpu4/core/zpu_core_small.vhd
@@ -1,47 +1,47 @@
--- ZPU
---
--- Copyright 2004-2008 oharboe - Řyvind Harboe - oyvind.harboe@zylin.com
---
--- The FreeBSD license
---
--- Redistribution and use in source and binary forms, with or without
--- modification, are permitted provided that the following conditions
--- are met:
---
--- 1. Redistributions of source code must retain the above copyright
--- notice, this list of conditions and the following disclaimer.
--- 2. Redistributions in binary form must reproduce the above
--- copyright notice, this list of conditions and the following
--- disclaimer in the documentation and/or other materials
--- provided with the distribution.
---
--- THIS SOFTWARE IS PROVIDED BY THE ZPU PROJECT ``AS IS'' AND ANY
--- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
--- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
--- ZPU PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
--- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
--- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
--- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
--- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
--- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
--- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
--- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---
--- The views and conclusions contained in the software and documentation
--- are those of the authors and should not be interpreted as representing
--- official policies, either expressed or implied, of the ZPU Project.
-
+-- ZPU
+--
+-- Copyright 2004-2008 oharboe - Řyvind Harboe - oyvind.harboe@zylin.com
+--
+-- The FreeBSD license
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions
+-- are met:
+--
+-- 1. Redistributions of source code must retain the above copyright
+-- notice, this list of conditions and the following disclaimer.
+-- 2. Redistributions in binary form must reproduce the above
+-- copyright notice, this list of conditions and the following
+-- disclaimer in the documentation and/or other materials
+-- provided with the distribution.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE ZPU PROJECT ``AS IS'' AND ANY
+-- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+-- ZPU PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+-- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+-- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+-- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+--
+-- The views and conclusions contained in the software and documentation
+-- are those of the authors and should not be interpreted as representing
+-- official policies, either expressed or implied, of the ZPU Project.
+
library ieee;
use ieee.std_logic_1164.all;
-use ieee.numeric_std.all;
-
-library work;
-use work.zpu_config.all;
-use work.zpupkg.all;
-
-
-entity zpu_core is
+use ieee.numeric_std.all;
+
+library work;
+use work.zpu_config.all;
+use work.zpupkg.all;
+
+
+entity zpu_core is
port (
clk : in std_logic;
-- asynchronous reset signal
@@ -67,12 +67,12 @@ entity zpu_core is
-- in simulation to stop simulation
break : out std_logic
);
-end zpu_core;
-
-
-
+end zpu_core;
+
+
+
architecture behave of zpu_core is
-
+
signal memAWriteEnable : std_logic;
signal memAAddr : unsigned(maxAddrBit downto minAddrBit);
signal memAWrite : unsigned(wordSize-1 downto 0);
@@ -171,11 +171,11 @@ architecture behave of zpu_core is
signal tOpcode_sel : index;
--
signal inInterrupt : std_logic;
-
-
-
-begin
-
+
+
+
+begin
+
-- generate a trace file.
--
-- This is only used in simulation to see what instructions are
@@ -596,7 +596,7 @@ begin
end if; -- reset, enable
end process;
-
-
-
-end behave;
+
+
+
+end behave;
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