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-- Utils for common types.
-- Copyright (C) 2019 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 GHDL; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
package body Types_Utils is
function Sext (V : Uns64; Sz : Natural) return Uns64
is
Sh : constant Natural range 0 .. 64 := 64 - Sz;
begin
return Shift_Right_Arithmetic (Shift_Left (V, Sh), Sh);
end Sext;
function Sext (V : Uns32; Sz : Natural) return Uns32
is
Sh : constant Natural range 0 .. 32 := 32 - Sz;
begin
return Shift_Right_Arithmetic (Shift_Left (V, Sh), Sh);
end Sext;
end Types_Utils;
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