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-- GHDL Run Time (GRT) std_logic_1664 subprograms.
-- Copyright (C) 2014 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an executable,
-- this unit does not by itself cause the resulting executable to be
-- covered by the GNU General Public License. This exception does not
-- however invalidate any other reasons why the executable file might be
-- covered by the GNU Public License.
with Grt.Lib;
package body Grt.Std_Logic_1164 is
Assert_Msg : constant String :=
"STD_LOGIC_1164: '-' operand for matching ordering operator";
Assert_Msg_Bound : constant Std_String_Bound :=
(Dim_1 => (Left => 1, Right => Assert_Msg'Length, Dir => Dir_To,
Length => Assert_Msg'Length));
Assert_Msg_Str : aliased constant Std_String :=
(Base => To_Std_String_Basep (Assert_Msg'Address),
Bounds => To_Std_String_Boundp (Assert_Msg_Bound'Address));
Filename : constant String := "std_logic_1164.vhdl" & NUL;
Loc : aliased constant Ghdl_Location :=
(Filename => To_Ghdl_C_String (Filename'Address),
Line => 58,
Col => 3);
procedure Assert_Not_Match (V : Std_Ulogic)
is
use Grt.Lib;
begin
if V = '-' then
-- FIXME: assert disabled for ieee.
Ghdl_Assert_Failed
(To_Std_String_Ptr (Assert_Msg_Str'Address), Error_Severity,
To_Ghdl_Location_Ptr (Loc'Address), null);
end if;
end Assert_Not_Match;
function Ghdl_Std_Ulogic_Match_Eq (L, R : Ghdl_E8) return Ghdl_E8
is
Left : constant Std_Ulogic := Std_Ulogic'Val (L);
Right : constant Std_Ulogic := Std_Ulogic'Val (R);
begin
Assert_Not_Match (Left);
Assert_Not_Match (Right);
return Std_Ulogic'Pos (Match_Eq_Table (Left, Right));
end Ghdl_Std_Ulogic_Match_Eq;
function Ghdl_Std_Ulogic_Match_Ne (L, R : Ghdl_E8) return Ghdl_E8
is
Left : constant Std_Ulogic := Std_Ulogic'Val (L);
Right : constant Std_Ulogic := Std_Ulogic'Val (R);
begin
Assert_Not_Match (Left);
Assert_Not_Match (Right);
return Std_Ulogic'Pos (Not_Table (Match_Eq_Table (Left, Right)));
end Ghdl_Std_Ulogic_Match_Ne;
function Ghdl_Std_Ulogic_Match_Lt (L, R : Ghdl_E8) return Ghdl_E8
is
Left : constant Std_Ulogic := Std_Ulogic'Val (L);
Right : constant Std_Ulogic := Std_Ulogic'Val (R);
begin
Assert_Not_Match (Left);
Assert_Not_Match (Right);
return Std_Ulogic'Pos (Match_Lt_Table (Left, Right));
end Ghdl_Std_Ulogic_Match_Lt;
function Ghdl_Std_Ulogic_Match_Le (L, R : Ghdl_E8) return Ghdl_E8
is
Left : constant Std_Ulogic := Std_Ulogic'Val (L);
Right : constant Std_Ulogic := Std_Ulogic'Val (R);
begin
Assert_Not_Match (Left);
Assert_Not_Match (Right);
return Std_Ulogic'Pos (Or_Table (Match_Lt_Table (Left, Right),
Match_Eq_Table (Left, Right)));
end Ghdl_Std_Ulogic_Match_Le;
end Grt.Std_Logic_1164;
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