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-- Utils for common types.
-- Copyright (C) 2019 Tristan Gingold
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <gnu.org/licenses>.
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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