| -- 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; |
