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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxb/cxb2001.a
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+-- CXB2001.A
+--
+-- Grant of Unlimited Rights
+--
+-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
+-- unlimited rights in the software and documentation contained herein.
+-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
+-- this public release, the Government intends to confer upon all
+-- recipients unlimited rights equal to those held by the Government.
+-- These rights include rights to use, duplicate, release or disclose the
+-- released technical data and computer software in whole or in part, in
+-- any manner and for any purpose whatsoever, and to have or permit others
+-- to do so.
+--
+-- DISCLAIMER
+--
+-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
+-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
+-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
+-- PARTICULAR PURPOSE OF SAID MATERIAL.
+--*
+--
+-- OBJECTIVE:
+-- Check that subprograms Shift_Left, Shift_Right,
+-- Shift_Right_Arithmetic, Rotate_Left, and Rotate_Right are available
+-- and produce correct results for values of signed and modular
+-- integer types of 8 bits.
+--
+-- TEST DESCRIPTION:
+-- This test uses the shift and rotate functions of package Interfaces
+-- with a modular type representative of 8 bits. The functions
+-- are used as the right hand of assignment statements, as part of
+-- conditional statements, and as arguments in other function calls.
+--
+-- A check is performed in the test to determine whether the bit
+-- ordering method used by the machine/implementation is high-order
+-- first ("Big Endian") or low-order first ("Little Endian"). The
+-- specific subtests use this information to evaluate the results of
+-- each of the functions under test.
+--
+-- Note: In the string associated with each Report.Failed statement, the
+-- acronym BE refers to Big Endian, LE refers to Little Endian.
+--
+-- APPLICABILITY CRITERIA:
+-- This test is applicable to all implementations that support signed
+-- and modular integer types of 8 bits.
+--
+--
+-- CHANGE HISTORY:
+-- 21 Aug 95 SAIC Initial prerelease version.
+-- 07 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
+--
+--!
+
+with Report;
+with Interfaces;
+with Ada.Exceptions;
+
+procedure CXB2001 is
+begin
+
+ Report.Test ("CXB2001",
+ "Check that subprograms Shift_Left, Shift_Right, " &
+ "Shift_Right_Arithmetic, Rotate_Left, and Rotate_Right " &
+ "produce correct results for values of signed and " &
+ "modular integer types of 8 bits");
+
+ Test_Block:
+ declare
+
+ use Ada.Exceptions;
+ use Interfaces;
+
+ TC_Amount : Natural := Natural'First;
+ Big_Endian : Boolean := False;
+
+ -- Range of type Unsigned_8 is 0..255 (0..Modulus-1).
+ TC_Val_Unsigned_8,
+ TC_Result_Unsigned_8 : Unsigned_8 := Unsigned_8'First;
+
+ begin
+
+ -- Determine whether the machine uses high-order first or low-order
+ -- first bit ordering.
+ -- On a high-order first machine, bit zero of a storage element is
+ -- the most significant bit (interpreting the sequence of bits that
+ -- represent a component as an unsigned integer value).
+ -- On a low-order first machine, bit zero is the least significant.
+ -- In this check, a right shift of one place on a Big Endian machine
+ -- will yield a result of one, while on a Little Endian machine the
+ -- result would be four.
+
+ TC_Val_Unsigned_8 := 2;
+ Big_Endian := (Shift_Right(TC_Val_Unsigned_8, 1) = 1);
+
+
+ -- Note: The shifting and rotating subprograms operate on a bit-by-bit
+ -- basis, using the binary representation of the value of the
+ -- operands to yield a binary representation for the result.
+
+ -- Function Shift_Left.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := Unsigned_8'Last; -- 255.
+ TC_Result_Unsigned_8 := Shift_Left(Value => TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 254 then
+ Report.Failed("Incorrect result from BE Shift_Left - 1");
+ end if;
+
+ if Shift_Left(TC_Val_Unsigned_8, 2) /= 252 or
+ Shift_Left(TC_Val_Unsigned_8, 3) /= 248 or
+ Shift_Left(TC_Val_Unsigned_8, 5) /= 224 or
+ Shift_Left(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Left(TC_Val_Unsigned_8, 9) /= 0 or
+ Shift_Left(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from BE Shift_Left - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Shift_Left(TC_Val_Unsigned_8, 1) /= 2 or
+ Shift_Left(TC_Val_Unsigned_8, Amount => 3) /= 8
+ then
+ Report.Failed("Incorrect result from BE Shift_Left - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 7;
+ if Shift_Left(TC_Val_Unsigned_8, Amount => 4) /= 112 or
+ Shift_Left(Shift_Left(TC_Val_Unsigned_8, 7), 1) /= 0
+ then
+ Report.Failed("Incorrect result from BE Shift_Left - 4");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := Unsigned_8'Last; -- 255.
+ TC_Result_Unsigned_8 := Shift_Left(TC_Val_Unsigned_8, TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 127 then
+ Report.Failed("Incorrect result from LE Shift_Left - 1");
+ end if;
+
+ if Shift_Left(TC_Val_Unsigned_8, 2) /= 63 or
+ Shift_Left(TC_Val_Unsigned_8, 3) /= 31 or
+ Shift_Left(TC_Val_Unsigned_8, 5) /= 7 or
+ Shift_Left(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Left(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from LE Shift_Left - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Shift_Left(TC_Val_Unsigned_8, 1) /= 0 or
+ Shift_Left(TC_Val_Unsigned_8, 7) /= 0
+ then
+ Report.Failed("Incorrect result from LE Shift_Left - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 129;
+ if Shift_Left(TC_Val_Unsigned_8, 4) /= 8 or
+ Shift_Left(Shift_Left(TC_Val_Unsigned_8, 7), 1) /= 0
+ then
+ Report.Failed("Incorrect result from LE Shift_Left - 4");
+ end if;
+
+ end if;
+
+
+
+ -- Function Shift_Right.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := Unsigned_8'Last; -- 255.
+ TC_Result_Unsigned_8 := Shift_Right(TC_Val_Unsigned_8, TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 127 then
+ Report.Failed("Incorrect result from BE Shift_Right - 1");
+ end if;
+
+ if Shift_Right(TC_Val_Unsigned_8, 2) /= 63 or
+ Shift_Right(TC_Val_Unsigned_8, 3) /= 31 or
+ Shift_Right(TC_Val_Unsigned_8, 5) /= 7 or
+ Shift_Right(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Right(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from BE Shift_Right - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Shift_Right(TC_Val_Unsigned_8, 1) /= 0 or
+ Shift_Right(TC_Val_Unsigned_8, 7) /= 0
+ then
+ Report.Failed("Incorrect result from BE Shift_Right - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 129;
+ if Shift_Right(TC_Val_Unsigned_8, 4) /= 8 or
+ Shift_Right(Shift_Right(TC_Val_Unsigned_8, 7), 1) /= 0
+ then
+ Report.Failed("Incorrect result from BE Shift_Right - 4");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := Unsigned_8'Last; -- 255.
+ TC_Result_Unsigned_8 := Shift_Right(Value => TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 254 then
+ Report.Failed("Incorrect result from LE Shift_Right - 1");
+ end if;
+
+ if Shift_Right(TC_Val_Unsigned_8, 2) /= 252 or
+ Shift_Right(TC_Val_Unsigned_8, 3) /= 248 or
+ Shift_Right(TC_Val_Unsigned_8, 5) /= 224 or
+ Shift_Right(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Right(TC_Val_Unsigned_8, 9) /= 0 or
+ Shift_Right(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from LE Shift_Right - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Shift_Right(TC_Val_Unsigned_8, 1) /= 2 or
+ Shift_Right(TC_Val_Unsigned_8, Amount => 3) /= 8
+ then
+ Report.Failed("Incorrect result from LE Shift_Right - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 7;
+ if Shift_Right(TC_Val_Unsigned_8, Amount => 4) /= 112 or
+ Shift_Right(Shift_Right(TC_Val_Unsigned_8, 7), 1) /= 0
+ then
+ Report.Failed("Incorrect result from LE Shift_Right - 4");
+ end if;
+
+ end if;
+
+
+
+ -- Tests of Shift_Left and Shift_Right in combination.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Val_Unsigned_8 := 32;
+
+ if Shift_Left(Shift_Right(TC_Val_Unsigned_8, 2), 2) /=
+ TC_Val_Unsigned_8 or
+ Shift_Left(Shift_Right(TC_Val_Unsigned_8, 1), 3) /= 128 or
+ Shift_Right(Shift_Left(TC_Val_Unsigned_8, 2), 6) /= 2 or
+ Shift_Right(Shift_Left(TC_Val_Unsigned_8, 2), 8) /= 0
+ then
+ Report.Failed("Incorrect result from BE Shift_Left - " &
+ "Shift_Right functions used in combination");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Val_Unsigned_8 := 32;
+
+ if Shift_Left(Shift_Right(TC_Val_Unsigned_8, 2), 2) /=
+ TC_Val_Unsigned_8 or
+ Shift_Left(Shift_Right(TC_Val_Unsigned_8, 1), 3) /= 8 or
+ Shift_Right(Shift_Left(TC_Val_Unsigned_8, 2), 3) /= 64 or
+ Shift_Right(Shift_Left(TC_Val_Unsigned_8, 2), 4) /= 128
+ then
+ Report.Failed("Incorrect result from LE Shift_Left - " &
+ "Shift_Right functions used in combination");
+ end if;
+
+ end if;
+
+
+
+ -- Function Shift_Right_Arithmetic.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ -- Case where the parameter Value is less than
+ -- one half of the modulus. Zero bits will be shifted in.
+ -- Modulus of type Unsigned_8 is 256; half of the modulus is 128.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 127; -- Less than one half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ TC_Amount);
+ if TC_Result_Unsigned_8 /= 63 then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 1");
+ end if;
+
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 2) /= 31 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 15 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 5) /= 3 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, Amount => 1) /= 0 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 0
+ then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 3");
+ end if;
+
+ -- Case where the parameter Value is greater than or equal to
+ -- one half of the modulus. One bits will be shifted in.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 128; -- One half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 192 then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 4");
+ end if;
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 129; -- Greater than one half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 192 then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 5");
+ end if;
+
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 2) /= 224 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 240 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 5) /= 252 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 7) /= Unsigned_8'Last or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 6");
+ end if;
+
+ TC_Val_Unsigned_8 := Unsigned_8'Last;
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 1) /=
+ Unsigned_8'Last
+ then
+ Report.Failed
+ ("Incorrect result from BE Shift_Right_Arithmetic - 7");
+ end if;
+
+ else -- Low-order first bit ordering
+
+ -- Case where the parameter Value is less than
+ -- one half of the modulus. Zero bits will be shifted in.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 127; -- Less than one half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ TC_Amount);
+ if TC_Result_Unsigned_8 /= 254 then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 1");
+ end if;
+
+ TC_Val_Unsigned_8 := 2;
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 2) /= 8 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 16 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 5) /= 64 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 8) /= 0 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 64;
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, Amount => 1) /= 128 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 0
+ then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 3");
+ end if;
+
+ -- Case where the parameter Value is greater than or equal to
+ -- one half of the modulus. One bits will be shifted in.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 128; -- One half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 3 then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 4");
+ end if;
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 129; -- Greater than one half of modulus.
+ TC_Result_Unsigned_8 := Shift_Right_Arithmetic(TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 3 then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 5");
+ end if;
+
+ TC_Val_Unsigned_8 := 135; -- Greater than one half of modulus.
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 2) /= 31 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 3) /= 63 or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 5) /= Unsigned_8'Last or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 7) /= Unsigned_8'Last or
+ Shift_Right_Arithmetic(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 6");
+ end if;
+
+ TC_Val_Unsigned_8 := Unsigned_8'Last;
+ if Shift_Right_Arithmetic(TC_Val_Unsigned_8, 1) /=
+ Unsigned_8'Last
+ then
+ Report.Failed
+ ("Incorrect result from LE Shift_Right_Arithmetic - 7");
+ end if;
+
+ end if;
+
+
+
+ -- Function Rotate_Left.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 129;
+ TC_Result_Unsigned_8 := Rotate_Left(Value => TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 3 then
+ Report.Failed("Incorrect result from BE Rotate_Left - 1");
+ end if;
+
+ if Rotate_Left(TC_Val_Unsigned_8, 2) /= 6 or
+ Rotate_Left(TC_Val_Unsigned_8, 3) /= 12 or
+ Rotate_Left(TC_Val_Unsigned_8, 5) /= 48 or
+ Rotate_Left(TC_Val_Unsigned_8, 8) /= 129 or
+ Rotate_Left(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from BE Rotate_Left - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Rotate_Left(Value => TC_Val_Unsigned_8, Amount => 1) /= 2 or
+ Rotate_Left(TC_Val_Unsigned_8, Amount => 3) /= 8
+ then
+ Report.Failed("Incorrect result from BE Rotate_Left - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 82;
+ if Rotate_Left(TC_Val_Unsigned_8, Amount => 4) /= 37 or
+ Rotate_Left(Rotate_Left(TC_Val_Unsigned_8, 7), 1) /= 82
+ then
+ Report.Failed("Incorrect result from BE Rotate_Left - 4");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 1;
+ TC_Result_Unsigned_8 := Rotate_Left(TC_Val_Unsigned_8, TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 128 then
+ Report.Failed("Incorrect result from LE Rotate_Left - 1");
+ end if;
+
+ TC_Val_Unsigned_8 := 15;
+ if Rotate_Left(TC_Val_Unsigned_8, 2) /= 195 or
+ Rotate_Left(TC_Val_Unsigned_8, 3) /= 225 or
+ Rotate_Left(TC_Val_Unsigned_8, 5) /= 120 or
+ Rotate_Left(TC_Val_Unsigned_8, 8) /= TC_Val_Unsigned_8 or
+ Rotate_Left(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from LE Rotate_Left - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := Unsigned_8'Last;
+ if Rotate_Left(TC_Val_Unsigned_8, 1) /= Unsigned_8'Last then
+ Report.Failed("Incorrect result from LE Rotate_Left - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 12;
+ if Rotate_Left(TC_Val_Unsigned_8, 1) /= 6 or
+ Rotate_Left(TC_Val_Unsigned_8, 3) /= 129
+ then
+ Report.Failed("Incorrect result from LE Rotate_Left - 4");
+ end if;
+
+ TC_Val_Unsigned_8 := 129;
+ if Rotate_Left(TC_Val_Unsigned_8, 4) /= 24 or
+ Rotate_Left(Rotate_Left(TC_Val_Unsigned_8, 7), 1) /= 129
+ then
+ Report.Failed("Incorrect result from LE Rotate_Left - 5");
+ end if;
+
+ end if;
+
+
+
+ -- Function Rotate_Right.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 1;
+ TC_Result_Unsigned_8 := Rotate_Right(TC_Val_Unsigned_8, TC_Amount);
+
+ if TC_Result_Unsigned_8 /= 128 then
+ Report.Failed("Incorrect result from BE Rotate_Right - 1");
+ end if;
+
+ TC_Val_Unsigned_8 := 15;
+ if Rotate_Right(TC_Val_Unsigned_8, 2) /= 195 or
+ Rotate_Right(TC_Val_Unsigned_8, 3) /= 225 or
+ Rotate_Right(TC_Val_Unsigned_8, 5) /= 120 or
+ Rotate_Right(TC_Val_Unsigned_8, 8) /= TC_Val_Unsigned_8 or
+ Rotate_Right(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from BE Rotate_Right - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := Unsigned_8'Last;
+ if Rotate_Right(TC_Val_Unsigned_8, 1) /= Unsigned_8'Last then
+ Report.Failed("Incorrect result from BE Rotate_Right - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 12;
+ if Rotate_Right(TC_Val_Unsigned_8, 1) /= 6 or
+ Rotate_Right(TC_Val_Unsigned_8, 3) /= 129
+ then
+ Report.Failed("Incorrect result from BE Rotate_Right - 4");
+ end if;
+
+ TC_Val_Unsigned_8 := 129;
+ if Rotate_Right(TC_Val_Unsigned_8, 4) /= 24 or
+ Rotate_Right(Rotate_Right(TC_Val_Unsigned_8, 7), 1) /= 129
+ then
+ Report.Failed("Incorrect result from BE Rotate_Right - 5");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Amount := 1;
+ TC_Val_Unsigned_8 := 129;
+ TC_Result_Unsigned_8 := Rotate_Right(Value => TC_Val_Unsigned_8,
+ Amount => TC_Amount);
+ if TC_Result_Unsigned_8 /= 3 then
+ Report.Failed("Incorrect result from LE Rotate_Right - 1");
+ end if;
+
+ if Rotate_Right(TC_Val_Unsigned_8, 2) /= 6 or
+ Rotate_Right(TC_Val_Unsigned_8, 3) /= 12 or
+ Rotate_Right(TC_Val_Unsigned_8, 5) /= 48 or
+ Rotate_Right(TC_Val_Unsigned_8, 8) /= 129 or
+ Rotate_Right(TC_Val_Unsigned_8, 0) /= TC_Val_Unsigned_8
+ then
+ Report.Failed("Incorrect result from LE Rotate_Right - 2");
+ end if;
+
+ TC_Val_Unsigned_8 := 1;
+ if Rotate_Right(Value => TC_Val_Unsigned_8, Amount => 1) /= 2 or
+ Rotate_Right(TC_Val_Unsigned_8, Amount => 3) /= 8
+ then
+ Report.Failed("Incorrect result from LE Rotate_Right - 3");
+ end if;
+
+ TC_Val_Unsigned_8 := 82;
+ if Rotate_Right(TC_Val_Unsigned_8, Amount => 4) /= 37 or
+ Rotate_Right(Rotate_Right(TC_Val_Unsigned_8, 7), 1) /= 82
+ then
+ Report.Failed("Incorrect result from LE Rotate_Right - 4");
+ end if;
+
+ end if;
+
+
+
+ -- Tests of Rotate_Left and Rotate_Right in combination.
+
+ if Big_Endian then -- High-order first bit ordering.
+
+ TC_Val_Unsigned_8 := 17;
+
+ if Rotate_Left(Rotate_Right(TC_Val_Unsigned_8, 2), 2) /=
+ TC_Val_Unsigned_8 or
+ Rotate_Left(Rotate_Right(TC_Val_Unsigned_8, 1), 3) /= 68 or
+ Rotate_Right(Rotate_Left(TC_Val_Unsigned_8, 3), 7) /= 17 or
+ Rotate_Right(Rotate_Left(TC_Val_Unsigned_8, 2), 8) /= 68
+ then
+ Report.Failed("Incorrect result from BE Rotate_Left - " &
+ "Rotate_Right functions used in combination");
+ end if;
+
+ else -- Low-order first bit ordering.
+
+ TC_Val_Unsigned_8 := 4;
+
+ if Rotate_Left(Rotate_Right(TC_Val_Unsigned_8, 2), 2) /=
+ TC_Val_Unsigned_8 or
+ Rotate_Left(Rotate_Right(TC_Val_Unsigned_8, 1), 3) /= 1 or
+ Rotate_Right(Rotate_Left(TC_Val_Unsigned_8, 3), 7) /= 64 or
+ Rotate_Right(Rotate_Left(TC_Val_Unsigned_8, 2), 8) /= 1
+ then
+ Report.Failed("Incorrect result from LE Rotate_Left - " &
+ "Rotate_Right functions used in combination");
+ end if;
+
+ end if;
+
+ exception
+ when The_Error : others =>
+ Report.Failed ("The following exception was raised in the " &
+ "Test_Block: " & Exception_Name(The_Error));
+ end Test_Block;
+
+ Report.Result;
+
+end CXB2001;