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-- GHDL Run Time (GRT) - misc subprograms.
-- 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 Grt.Errors; use Grt.Errors;
with Grt.Options;
package body Grt.Lib is
--procedure Memcpy (Dst : Address; Src : Address; Size : Size_T);
--pragma Import (C, Memcpy);
procedure Ghdl_Memcpy
(Dest : Ghdl_Ptr; Src : Ghdl_Ptr; Size : Ghdl_Index_Type)
is
procedure Memmove
(Dest : Ghdl_Ptr; Src : Ghdl_Ptr; Size : Ghdl_Index_Type);
pragma Import (C, Memmove);
begin
Memmove (Dest, Src, Size);
end Ghdl_Memcpy;
Ieee_Name : constant String := "ieee" & NUL;
procedure Do_Report (Msg : String;
Str : Std_String_Ptr;
Severity : Integer;
Loc : Ghdl_Location_Ptr;
Unit : Ghdl_Rti_Access)
is
use Grt.Options;
Level : constant Integer := Severity mod 256;
begin
-- Assertions from ieee library can be disabled.
if Unit /= null
and then Unit.Kind = Ghdl_Rtik_Package_Body
and then (Ieee_Asserts = Disable_Asserts
or (Ieee_Asserts = Disable_Asserts_At_Time_0
and Current_Time = 0))
then
declare
Blk : constant Ghdl_Rtin_Block_Acc :=
To_Ghdl_Rtin_Block_Acc (Unit);
Pkg : constant Ghdl_Rtin_Block_Acc :=
To_Ghdl_Rtin_Block_Acc (Blk.Parent);
Lib : constant Ghdl_Rtin_Type_Scalar_Acc :=
To_Ghdl_Rtin_Type_Scalar_Acc (Pkg.Parent);
begin
-- Return now if this assert comes from the ieee library.
if Strcmp (Lib.Name, To_Ghdl_C_String (Ieee_Name'Address)) = 0 then
return;
end if;
end;
end if;
Report_H;
Report_C (Loc.Filename);
Report_C (":");
Report_C (Loc.Line);
Report_C (":");
Report_C (Loc.Col);
Report_C (":@");
Report_Now_C;
Report_C (":(");
Report_C (Msg);
Report_C (" ");
case Level is
when Note_Severity =>
Report_C ("note");
when Warning_Severity =>
Report_C ("warning");
when Error_Severity =>
Report_C ("error");
when Failure_Severity =>
Report_C ("failure");
when others =>
Report_C ("???");
end case;
Report_C ("): ");
Report_E (Str);
if Level >= Grt.Options.Severity_Level then
Error_C (Msg);
Error_E (" failed");
end if;
end Do_Report;
procedure Ghdl_Assert_Failed
(Str : Std_String_Ptr;
Severity : Integer;
Loc : Ghdl_Location_Ptr;
Unit : Ghdl_Rti_Access)
is
begin
Do_Report ("assertion", Str, Severity, Loc, Unit);
end Ghdl_Assert_Failed;
procedure Ghdl_Report
(Str : Std_String_Ptr;
Severity : Integer;
Loc : Ghdl_Location_Ptr;
Unit : Ghdl_Rti_Access)
is
begin
Do_Report ("report", Str, Severity, Loc, Unit);
end Ghdl_Report;
procedure Ghdl_Program_Error (Filename : Ghdl_C_String;
Line : Ghdl_I32;
Code : Ghdl_Index_Type)
is
begin
case Code is
when 1 =>
Error_C ("missing return in function");
when 2 =>
Error_C ("block already configured");
when 3 =>
Error_C ("bad configuration");
when others =>
Error_C ("unknown error code ");
Error_C (Integer (Code));
end case;
Error_C (" at ");
if Filename = null then
Error_C ("*unknown*");
else
Error_C (Filename);
end if;
Error_C (":");
Error_C (Integer(Line));
Error_E ("");
end Ghdl_Program_Error;
procedure Ghdl_Bound_Check_Failed_L0 (Number : Ghdl_Index_Type) is
begin
Error_C ("bound check failed (#");
Error_C (Integer (Number));
Error_E (")");
end Ghdl_Bound_Check_Failed_L0;
procedure Ghdl_Bound_Check_Failed_L1 (Filename : Ghdl_C_String;
Line: Ghdl_I32)
is
begin
Error_C ("bound check failure at ");
Error_C (Filename);
Error_C (":");
Error_C (Integer (Line));
Error_E ("");
end Ghdl_Bound_Check_Failed_L1;
function Ghdl_Integer_Exp (V : Ghdl_I32; E : Ghdl_I32)
return Ghdl_I32
is
pragma Suppress (Overflow_Check);
R : Ghdl_I32;
Res : Ghdl_I32;
P : Ghdl_I32;
T : Ghdl_I64;
begin
if E < 0 then
Error ("negative exponent");
end if;
Res := 1;
P := V;
R := E;
loop
if R mod 2 = 1 then
T := Ghdl_I64 (Res) * Ghdl_I64 (P);
Res := Ghdl_I32 (T);
if Ghdl_I64 (Res) /= T then
Error ("overflow in exponentiation");
end if;
end if;
R := R / 2;
exit when R = 0;
P := P * P;
end loop;
return Res;
end Ghdl_Integer_Exp;
function C_Malloc (Size : Ghdl_Index_Type) return Ghdl_Ptr;
pragma Import (C, C_Malloc, "malloc");
function Ghdl_Malloc (Size : Ghdl_Index_Type) return Ghdl_Ptr is
begin
return C_Malloc (Size);
end Ghdl_Malloc;
function Ghdl_Malloc0 (Size : Ghdl_Index_Type) return Ghdl_Ptr
is
procedure Memset (Ptr : Ghdl_Ptr; C : Integer; Size : Ghdl_Index_Type);
pragma Import (C, Memset);
Res : Ghdl_Ptr;
begin
Res := C_Malloc (Size);
Memset (Res, 0, Size);
return Res;
end Ghdl_Malloc0;
procedure Ghdl_Deallocate (Ptr : Ghdl_Ptr)
is
procedure C_Free (Ptr : Ghdl_Ptr);
pragma Import (C, C_Free, "free");
begin
C_Free (Ptr);
end Ghdl_Deallocate;
function Ghdl_Real_Exp (X : Ghdl_Real; Exp : Ghdl_I32)
return Ghdl_Real
is
R : Ghdl_I32;
Res : Ghdl_Real;
P : Ghdl_Real;
begin
Res := 1.0;
P := X;
R := Exp;
if R >= 0 then
loop
if R mod 2 = 1 then
Res := Res * P;
end if;
R := R / 2;
exit when R = 0;
P := P * P;
end loop;
return Res;
else
R := -R;
loop
if R mod 2 = 1 then
Res := Res * P;
end if;
R := R / 2;
exit when R = 0;
P := P * P;
end loop;
if Res = 0.0 then
Error ("division per 0.0");
return 0.0;
end if;
return 1.0 / Res;
end if;
end Ghdl_Real_Exp;
end Grt.Lib;
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