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-- GHDL Run Time (GRT) - VCD generator.
-- Copyright (C) 2002, 2003, 2004, 2005 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.
with System; use System;
with Grt.Types; use Grt.Types;
with Grt.Avhpi; use Grt.Avhpi;
package Grt.Vcd is
-- Abstract type for IO.
type Vcd_IO_Handler is abstract tagged null record;
procedure Vcd_Put (Handler : access Vcd_IO_Handler; Str : String)
is abstract;
procedure Vcd_Putc (Handler : access Vcd_IO_Handler; C : Character)
is abstract;
procedure Vcd_Close (Handler : access Vcd_IO_Handler)
is abstract;
type Handler_Acc is access all Vcd_IO_Handler'Class;
H : Handler_Acc := null;
type Vcd_Var_Kind is (Vcd_Bad,
Vcd_Bool,
Vcd_Integer32,
Vcd_Bit, Vcd_Stdlogic,
Vcd_Bitvector, Vcd_Stdlogic_Vector);
-- Which value to be displayed: effective or driving (for out signals).
type Vcd_Value_Kind is (Vcd_Effective, Vcd_Driving);
type Verilog_Wire_Info is record
Addr : Address;
Irange : Ghdl_Range_Ptr;
Kind : Vcd_Var_Kind;
Val : Vcd_Value_Kind;
end record;
procedure Get_Verilog_Wire (Sig : VhpiHandleT;
Info : out Verilog_Wire_Info);
-- Return TRUE if last change time of the wire described by INFO is LAST.
function Verilog_Wire_Changed (Info : Verilog_Wire_Info;
Last : Std_Time)
return Boolean;
procedure Register;
end Grt.Vcd;
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