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authorTristan Gingold <tgingold@free.fr>2014-11-05 05:11:00 +0100
committerTristan Gingold <tgingold@free.fr>2014-11-05 05:11:00 +0100
commit3fddf1c59fd7a8fcd260bb9e05c611bef3dd141b (patch)
treecbfe6d75f8e09db8b98f335406fb6ecb2fce3e0c /src/grt/grt-vcd.ads
parent0a088b311ed2fcebc542f8a2e42d09e2e3c9311c (diff)
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+-- GHDL Run Time (GRT) - VCD generator.
+-- Copyright (C) 2002 - 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 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_Put_Acc is access procedure (Str : String);
+ type Vcd_Putc_Acc is access procedure (C : Character);
+ type Vcd_Close_Acc is access procedure;
+
+ Vcd_Put : Vcd_Put_Acc;
+ Vcd_Putc : Vcd_Putc_Acc;
+ Vcd_Close : Vcd_Close_Acc;
+
+ type Vcd_Var_Kind is (Vcd_Bad,
+ Vcd_Bool,
+ Vcd_Integer32,
+ Vcd_Float64,
+ 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;