1-- C45532G.ADA 2 3-- Grant of Unlimited Rights 4-- 5-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, 6-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 7-- unlimited rights in the software and documentation contained herein. 8-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making 9-- this public release, the Government intends to confer upon all 10-- recipients unlimited rights equal to those held by the Government. 11-- These rights include rights to use, duplicate, release or disclose the 12-- released technical data and computer software in whole or in part, in 13-- any manner and for any purpose whatsoever, and to have or permit others 14-- to do so. 15-- 16-- DISCLAIMER 17-- 18-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR 19-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 20-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE 21-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 22-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A 23-- PARTICULAR PURPOSE OF SAID MATERIAL. 24--* 25-- OBJECTIVE: 26-- CHECK THAT THE OPERATOR "*" PRODUCES CORRECT RESULTS 27-- FOR FIXED POINT TYPES USING 3 SUBTESTS. 28-- THIS TEST REQUIRES MIN_WORD_LENGTH = 16. 29-- THIS TEST USES VALUES OF DELTA WHICH ARE GREATER THAN OR 30-- EQUAL TO 0.5. 31-- 32-- TEST CASES ARE: 33-- A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS. 34-- B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT. 35-- C) THE OPERATOR *, USING NO MODEL NUMBERS. 36-- 37-- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48, 38-- WITH RANGE <, =, AND > THAN 1.0 AND 39-- WITH DELTA <, =, AND > THAN 1.0. 40 41-- HISTORY: 42-- NTW 09/08/86 CREATED ORIGINAL TEST. 43-- RJW 11/05/86 REVISED COMMENTS. 44-- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER. 45-- RDH 04/27/90 REVISED APPLICABILITY CRITERIA. 46-- BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR 47-- LINE. CHANGED EXTENSION FROM '.DEP' TO '.ADA'. 48 49WITH REPORT; 50PROCEDURE C45532G IS 51 52 USE REPORT; 53 54 MIN_WORD_LENGTH : CONSTANT := 16; 55 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1); 56 FORTH : CONSTANT := FULL_SCALE / 4; 57 RNG1 : CONSTANT := FULL_SCALE * 0.5; 58 TYPE FX_0P5 IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5; 59 TYPE FX_1 IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0; 60 TYPE FX_RNG1 IS DELTA RNG1 61 RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1); 62 63BEGIN TEST ("C45532G", "FIXED POINT OPERATOR ""*""" ); 64 65 -------------------------------------------------- 66 67 -- CASE A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS. 68 69A: DECLARE 70 A : FX_0P5 := 0.0; 71 B : FX_1 := 0.0; 72 RESULT_VALUE : FX_RNG1 := 0.0; 73 LOWEST_ACCEPTABLE_VALUE 74 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4); 75 HIGHEST_ACCEPTABLE_VALUE 76 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4); 77 BEGIN 78 IF EQUAL (3, 3) THEN 79 A := FX_0P5 (RNG1 / 2); -- A MODEL NUMBER 80 B := FX_1 (RNG1 / 2); -- A MODEL NUMBER 81 END IF; 82 83 RESULT_VALUE := FX_RNG1 (A * B); 84 85 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 86 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 87 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 88 & "WHEN A, B, AND A * B ARE ALL MODEL NUMBERS"); 89 END IF; 90 END A; 91 92 -------------------------------------------------- 93 94 -- CASE B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT. 95 96B: DECLARE 97 A : FX_0P5 := 0.0; 98 B : FX_0P5 := 0.0; 99 RESULT_VALUE : FX_RNG1 := 0.0; 100 LOW_COUNT : CONSTANT := FULL_SCALE / 16; 101 HIGH_COUNT : CONSTANT := LOW_COUNT + 1; 102 LOWEST_ACCEPTABLE_VALUE : FX_RNG1 103 := FX_RNG1 (RNG1 * LOW_COUNT); 104 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1 105 := FX_RNG1 (RNG1 * HIGH_COUNT); 106 BEGIN 107 IF EQUAL (3, 3) THEN 108 A := FX_0P5 (0.5 * (FORTH + 1) ); -- A MODEL NUMBER 109 B := FX_0P5 (0.5 * (FORTH * 2) ); -- A MODEL NUMBER 110 END IF; 111 112 RESULT_VALUE := FX_RNG1 (A * B); 113 114 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 115 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 116 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 117 & "WHEN A, B MODEL NUMBERS A * B NOT"); 118 END IF; 119 END B; 120 121 -------------------------------------------------- 122 123 -- CASE C) THE OPERATOR *, USING NO MODEL NUMBERS 124 125C: DECLARE 126 A : FX_1 := 0.0; 127 B : FX_1 := 0.0; 128 RESULT_VALUE : FX_RNG1 := 0.0; 129 LOW_COUNT : CONSTANT := FULL_SCALE / 32 - 1; 130 HIGH_COUNT : CONSTANT := FULL_SCALE / 32 + 1; 131 LOWEST_ACCEPTABLE_VALUE : FX_RNG1 132 := FX_RNG1 (RNG1 * LOW_COUNT); 133 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1 134 := FX_RNG1 (RNG1 * HIGH_COUNT); 135 BEGIN 136 IF EQUAL (3, 3) THEN 137 A := FX_1 (0.5 * (FORTH + 1) ); -- NOT MODEL NUMBER 138 B := FX_1 (0.5 * (FORTH - 1) ); -- NOT MODEL NUMBER 139 END IF; 140 141 RESULT_VALUE := FX_RNG1 (A * B); 142 143 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 144 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 145 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 146 & "WHEN USING NO MODEL NUMBERS"); 147 END IF; 148 END C; 149 150 -------------------------------------------------- 151 152 153 RESULT; 154 155END C45532G; 156