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 LESS THAN 0.5.
32 -- A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS.
33 -- B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT.
34 -- C) THE OPERATOR *, USING NO MODEL NUMBERS.
36 -- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
37 -- WITH RANGE <, =, AND > THAN 1.0 AND
38 -- WITH DELTA <, =, AND > THAN 1.0.
40 -- APPLICABILITY CRITERIA:
41 -- THIS TEST IS APPLICABLE FOR IMPLEMENTATIONS WHICH HAVE A
42 -- 'MAX_MANTISSA OF 47 OR GREATER.
44 -- IF 'MAX_MANTISSA >= 47 IS NOT SUPPORTED THEN THE DECLARATION OF
45 -- 'TYPE FX_OP5' MUST BE REJECTED.
48 -- NTW 09/08/86 CREATED ORIGINAL TEST.
49 -- RJW 11/05/86 REVISED COMMENTS.
50 -- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
51 -- RDH 04/27/90 REVISED APPLICABILITY CRITERIA.
58 MIN_WORD_LENGTH : CONSTANT := 48;
59 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
60 FORTH : CONSTANT := FULL_SCALE / 4;
61 DEL1 : CONSTANT := 0.5 / FULL_SCALE;
62 TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 0.5 - DEL1 * 1;
64 TYPE FX_1 IS DELTA DEL1 * 2 RANGE -1.0 .. 1.0 - DEL1 * 2;
65 TYPE FX_2 IS DELTA DEL1 * 4 RANGE -2.0 .. 2.0 - DEL1 * 4;
67 BEGIN TEST ("C45532M", "FIXED POINT OPERATOR ""*""" );
69 --------------------------------------------------
71 -- CASE A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS.
76 RESULT_VALUE : FX_1 := 0.0;
77 LOWEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.125);
78 HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.125);
81 A := FX_0P5 (0.25); -- A MODEL NUMBER
82 B := FX_2 (0.50); -- A MODEL NUMBER
85 RESULT_VALUE := FX_1 (A * B);
87 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
88 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
89 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
90 & "WHEN A, B, AND A * B ARE ALL MODEL NUMBERS");
94 --------------------------------------------------
96 -- CASE B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT.
101 RESULT_VALUE : FX_2 := 0.0;
102 LOW_COUNT : CONSTANT := FULL_SCALE / 64;
103 HIGH_COUNT : CONSTANT := LOW_COUNT + 1;
104 LOWEST_ACCEPTABLE_VALUE : FX_2
105 := FX_2 (4 * DEL1 * LOW_COUNT );
106 HIGHEST_ACCEPTABLE_VALUE : FX_2
107 := FX_2 (4 * DEL1 * HIGH_COUNT);
110 A := FX_0P5 (DEL1 * (FORTH + 1) ); -- A MODEL NUMBER
111 B := FX_1 (DEL1 * (FORTH * 2) ); -- A MODEL NUMBER
114 RESULT_VALUE := FX_2 (A * B);
116 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
117 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
118 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
119 & "WHEN A, B MODEL NUMBERS A * B NOT");
123 --------------------------------------------------
125 -- CASE C) THE OPERATOR *, USING NO MODEL NUMBERS
130 RESULT_VALUE : FX_2 := 0.0;
131 LOW_COUNT : CONSTANT := FULL_SCALE / 128 - 1;
132 HIGH_COUNT : CONSTANT := FULL_SCALE / 128 + 1;
133 LOWEST_ACCEPTABLE_VALUE : FX_2
134 := FX_2 (4 * DEL1 * LOW_COUNT );
135 HIGHEST_ACCEPTABLE_VALUE : FX_2
136 := FX_2 (4 * DEL1 * HIGH_COUNT);
139 A := FX_1 (DEL1 * (FORTH + 1) ); -- NOT MODEL NUMBER
140 B := FX_1 (DEL1 * (FORTH - 1) ); -- NOT MODEL NUMBER
143 RESULT_VALUE := FX_2 (A * B);
145 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
146 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
147 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
148 & "WHEN USING NO MODEL NUMBERS");
152 --------------------------------------------------