From eab67ae1b5d86c9c294ef057631d04a448e1727f Mon Sep 17 00:00:00 2001 From: oharboe Date: Fri, 15 Aug 2008 10:53:01 +0000 Subject: marked unused instruction opcodes as OpCode_NAx --- zpu/hdl/zpu4/core/zpupkg.vhd | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/zpu/hdl/zpu4/core/zpupkg.vhd b/zpu/hdl/zpu4/core/zpupkg.vhd index f3800b0..e8d54a3 100644 --- a/zpu/hdl/zpu4/core/zpupkg.vhd +++ b/zpu/hdl/zpu4/core/zpupkg.vhd @@ -114,9 +114,9 @@ package zpupkg is constant OpCode_Short : std_logic_vector(7 downto 4) := "0000"; constant OpCode_Break : std_logic_vector(3 downto 0) := "0000"; - constant OpCode_Shiftleft: std_logic_vector(3 downto 0) := "0001"; + constant OpCode_NA4 : std_logic_vector(3 downto 0) := "0001"; constant OpCode_PushSP : std_logic_vector(3 downto 0) := "0010"; - constant OpCode_PushInt : std_logic_vector(3 downto 0) := "0011"; + constant OpCode_NA3 : std_logic_vector(3 downto 0) := "0011"; constant OpCode_PopPC : std_logic_vector(3 downto 0) := "0100"; constant OpCode_Add : std_logic_vector(3 downto 0) := "0101"; @@ -130,8 +130,8 @@ package zpupkg is constant OpCode_Store : std_logic_vector(3 downto 0) := "1100"; constant OpCode_PopSP : std_logic_vector(3 downto 0) := "1101"; - constant OpCode_Compare : std_logic_vector(3 downto 0) := "1110"; - constant OpCode_PopInt : std_logic_vector(3 downto 0) := "1111"; + constant OpCode_NA2 : std_logic_vector(3 downto 0) := "1110"; + constant OpCode_NA : std_logic_vector(3 downto 0) := "1111"; constant OpCode_Lessthan : std_logic_vector(5 downto 0) := std_logic_vector(to_unsigned(36, 6)); constant OpCode_Lessthanorequal : std_logic_vector(5 downto 0) := std_logic_vector(to_unsigned(37, 6)); -- cgit v1.1