3 -- Grant of Unlimited Rights
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
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.
26 -- CHECK THAT THE OPERATOR "*" PRODUCES CORRECT RESULTS
27 -- FOR FIXED POINT TYPES USING 3 SUBTESTS.
28 -- THIS TEST REQUIRES MIN_WORD_LENGTH = 48.
29 -- THIS TEST USES VALUES OF DELTA WHICH ARE GREATER THAN OR
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.
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.
41 -- APPLICABILITY CRITERIA:
42 -- THIS TEST IS APPLICABLE FOR IMPLEMENTATIONS WHICH HAVE A
43 -- 'MAX_MANTISSA OF 47 OR GREATER.
45 -- IF 'MAX_MANTISSA >= 47 IS NOT SUPPORTED THEN THE DECLARATION OF
46 -- 'TYPE FX_OP5' MUST BE REJECTED.
49 -- NTW 09/08/86 CREATED ORIGINAL TEST.
50 -- RJW 11/05/86 REVISED COMMENTS.
51 -- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
52 -- RDH 04/27/90 REVISED APPLICABILITY CRITERIA.
59 MIN_WORD_LENGTH : CONSTANT := 48;
60 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
61 FORTH : CONSTANT := FULL_SCALE / 4;
62 RNG1 : CONSTANT := FULL_SCALE * 0.5;
63 TYPE FX_0P5 IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5;
65 TYPE FX_1 IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0;
66 TYPE FX_RNG1 IS DELTA RNG1
67 RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1);
69 BEGIN TEST ("C45532O", "FIXED POINT OPERATOR ""*""" );
71 --------------------------------------------------
73 -- CASE A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS.
78 RESULT_VALUE : FX_RNG1 := 0.0;
79 LOWEST_ACCEPTABLE_VALUE
80 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4);
81 HIGHEST_ACCEPTABLE_VALUE
82 : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4);
85 A := FX_0P5 (RNG1 / 2); -- A MODEL NUMBER
86 B := FX_1 (RNG1 / 2); -- A MODEL NUMBER
89 RESULT_VALUE := FX_RNG1 (A * B);
91 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
92 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
93 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
94 & "WHEN A, B, AND A * B ARE ALL MODEL NUMBERS");
98 --------------------------------------------------
100 -- CASE B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT.
105 RESULT_VALUE : FX_RNG1 := 0.0;
106 LOW_COUNT : CONSTANT := FULL_SCALE / 16;
107 HIGH_COUNT : CONSTANT := LOW_COUNT + 1;
108 LOWEST_ACCEPTABLE_VALUE : FX_RNG1
109 := FX_RNG1 (RNG1 * LOW_COUNT);
110 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1
111 := FX_RNG1 (RNG1 * HIGH_COUNT);
114 A := FX_0P5 (0.5 * (FORTH + 1) ); -- A MODEL NUMBER
115 B := FX_0P5 (0.5 * (FORTH * 2) ); -- A MODEL NUMBER
118 RESULT_VALUE := FX_RNG1 (A * B);
120 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
121 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
122 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
123 & "WHEN A, B MODEL NUMBERS A * B NOT");
127 --------------------------------------------------
129 -- CASE C) THE OPERATOR *, USING NO MODEL NUMBERS
134 RESULT_VALUE : FX_RNG1 := 0.0;
135 LOW_COUNT : CONSTANT := FULL_SCALE / 32 - 1;
136 HIGH_COUNT : CONSTANT := FULL_SCALE / 32 + 1;
137 LOWEST_ACCEPTABLE_VALUE : FX_RNG1
138 := FX_RNG1 (RNG1 * LOW_COUNT);
139 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1
140 := FX_RNG1 (RNG1 * HIGH_COUNT);
143 A := FX_1 (0.5 * (FORTH + 1) ); -- NOT MODEL NUMBER
144 B := FX_1 (0.5 * (FORTH - 1) ); -- NOT MODEL NUMBER
147 RESULT_VALUE := FX_RNG1 (A * B);
149 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
150 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
151 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
152 & "WHEN USING NO MODEL NUMBERS");
156 --------------------------------------------------