1-- C45532C.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 = 12. 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 C45532C IS 51 52 USE REPORT; 53 54 MIN_WORD_LENGTH : CONSTANT := 12; 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 ("C45532C", "FIXED POINT OPERATOR ""*"" " 64 & "FOR DELTA <, =, AND > 1.0"); 65 66 -------------------------------------------------- 67 68 -- CASE A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS. 69 70A: DECLARE 71 A : FX_0P5 := 0.0; 72 B : FX_1 := 0.0; 73 RESULT_VALUE : FX_RNG1 := 0.0; 74 LOWEST_ACCEPTABLE_VALUE 75 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4); 76 HIGHEST_ACCEPTABLE_VALUE 77 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4); 78 BEGIN 79 IF EQUAL (3, 3) THEN 80 A := FX_0P5 (RNG1 / 2); -- A MODEL NUMBER 81 B := FX_1 (RNG1 / 2); -- A MODEL NUMBER 82 END IF; 83 84 RESULT_VALUE := FX_RNG1 (A * B); 85 86 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 87 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 88 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 89 & "WHEN A, B, AND A * B ARE ALL MODEL NUMBERS"); 90 END IF; 91 END A; 92 93 -------------------------------------------------- 94 95 -- CASE B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT. 96 97B: DECLARE 98 A : FX_0P5 := 0.0; 99 B : FX_0P5 := 0.0; 100 RESULT_VALUE : FX_RNG1 := 0.0; 101 LOW_COUNT : CONSTANT := FULL_SCALE / 16; 102 HIGH_COUNT : CONSTANT := LOW_COUNT + 1; 103 LOWEST_ACCEPTABLE_VALUE : FX_RNG1 104 := FX_RNG1 (RNG1 * LOW_COUNT); 105 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1 106 := FX_RNG1 (RNG1 * HIGH_COUNT); 107 BEGIN 108 IF EQUAL (3, 3) THEN 109 A := FX_0P5 (0.5 * (FORTH + 1) ); -- A MODEL NUMBER 110 B := FX_0P5 (0.5 * (FORTH * 2) ); -- A MODEL NUMBER 111 END IF; 112 113 RESULT_VALUE := FX_RNG1 (A * B); 114 115 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 116 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 117 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 118 & "WHEN A, B MODEL NUMBERS A * B NOT"); 119 END IF; 120 END B; 121 122 -------------------------------------------------- 123 124 -- CASE C) THE OPERATOR *, USING NO MODEL NUMBERS 125 126C: DECLARE 127 A : FX_1 := 0.0; 128 B : FX_1 := 0.0; 129 RESULT_VALUE : FX_RNG1 := 0.0; 130 LOW_COUNT : CONSTANT := FULL_SCALE / 32 - 1; 131 HIGH_COUNT : CONSTANT := FULL_SCALE / 32 + 1; 132 LOWEST_ACCEPTABLE_VALUE : FX_RNG1 133 := FX_RNG1 (RNG1 * LOW_COUNT); 134 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1 135 := FX_RNG1 (RNG1 * HIGH_COUNT); 136 BEGIN 137 IF EQUAL (3, 3) THEN 138 A := FX_1 (0.5 * (FORTH + 1) ); -- NOT MODEL NUMBER 139 B := FX_1 (0.5 * (FORTH - 1) ); -- NOT MODEL NUMBER 140 END IF; 141 142 RESULT_VALUE := FX_RNG1 (A * B); 143 144 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 145 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 146 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL " 147 & "WHEN USING NO MODEL NUMBERS"); 148 END IF; 149 END C; 150 151 -------------------------------------------------- 152 153 154 RESULT; 155 156END C45532C; 157