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111
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1 -- C45531F.ADA
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2
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 -- OBJECTIVE:
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26 -- CHECK THAT THE OPERATOR "/" PRODUCES CORRECT RESULTS
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27 -- FOR MIXED FIXED POINT AND INTEGER TYPES USING 3 SUBTESTS.
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28 -- THIS TEST REQUIRES MIN_WORD_LENGTH = 16.
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29 -- THIS TEST USES VALUES OF DELTA WHICH ARE LESS THAN 0.5.
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30 --
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31 -- TEST CASES ARE:
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32 -- A) FIXED / INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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33 -- B) FIXED / INTEGER WITH NUMERATOR MODEL NUMBER AND RESULT NOT.
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34 -- C) FIXED / INTEGER FOR NON-MODEL NUMBERS.
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35 --
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36 -- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
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37 -- WITH RANGE <, =, AND > THAN 1.0 AND
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38 -- WITH DELTA <, =, AND > THAN 1.0.
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39
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40 -- HISTORY:
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41 -- NTW 09/08/86 CREATED ORIGINAL TEST.
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42 -- RJW 11/05/86 REVISED COMMENTS.
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43 -- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
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44 -- BCB 04/27/90 REVISED APPLICABILITY CRITERIA.
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45 -- BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR
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46 -- LINE. CHANGED EXTENSION FROM '.DEP' TO '.ADA'.
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47
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48 WITH REPORT;
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49 PROCEDURE C45531F IS
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50
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51 USE REPORT;
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52
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53 MIN_WORD_LENGTH : CONSTANT := 16;
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54 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
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55 FORTH : CONSTANT := FULL_SCALE / 4;
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56 DEL1 : CONSTANT := 0.5 / FULL_SCALE;
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57 DEL2 : CONSTANT := 2.0 * DEL1;
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58 DEL4 : CONSTANT := 4.0 * DEL1;
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59 TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 0.5 - DEL1 * 1;
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60 TYPE FX_1 IS DELTA DEL1 * 2 RANGE -1.0 .. 1.0 - DEL1 * 2;
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61 TYPE FX_2 IS DELTA DEL1 * 4 RANGE -2.0 .. 2.0 - DEL1 * 4;
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62
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63 BEGIN TEST ("C45531F", "MIXED FIXED POINT AND INTEGER ""/"" "
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64 & "FOR RANGE <, =, > 1.0");
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65
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66 --------------------------------------------------
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67
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68 -- CASE A) FIXED / INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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69
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70 A: DECLARE
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71 A : FX_0P5 := 0.0;
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72 B : INTEGER := 0;
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73 RESULT_VALUE : FX_0P5 := 0.0;
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74 LOWEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (3 * DEL1);
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75 HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (3 * DEL1);
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76 BEGIN
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77 IF EQUAL (3, 3) THEN
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78 A := FX_0P5 (15 * DEL1); -- A MODEL NUMBER
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79 B := 5;
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80 END IF;
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81
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82 RESULT_VALUE := A / B;
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83
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84 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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85 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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86 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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87 & "FOR FIXED / INTEGER "
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88 & "WHEN ALL VALUES ARE MODEL NUMBERS");
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89 END IF;
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90 END A;
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91
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92 --------------------------------------------------
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93
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94 -- CASE B) FIXED / INTEGER WITH NUMERATOR MODEL NUMBER, RESULT NOT
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95
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96 B: DECLARE
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97 A : FX_1 := 0.0;
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98 B : INTEGER := 0;
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99 RESULT_VALUE : FX_1 := 0.0;
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100 LOWEST_ACCEPTABLE_VALUE : FX_1
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101 := FX_1 (DEL2 * FORTH );
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102 HIGHEST_ACCEPTABLE_VALUE : FX_1
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103 := FX_1 (DEL2 * (FORTH + 1) );
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104 BEGIN
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105 IF EQUAL (3, 3) THEN -- A IS A MODEL NUMBER
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106 A := FX_1 (DEL2 * (3 * FORTH + 1) );
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107 B := 3;
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108 END IF;
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109
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110 RESULT_VALUE := A / B;
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111
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112 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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113 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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114 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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115 & "FOR FIXED / INTEGER WITH NUMERATOR MODEL "
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116 & "NUMBER, RESULT NOT");
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117
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118 END IF;
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119 END B;
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120
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121 --------------------------------------------------
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122
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123 -- CASE C) FIXED / INTEGER FOR NON-MODEL NUMBERS
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124
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125 C: DECLARE
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126 A : FX_2 := 0.0;
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127 B : INTEGER := 0;
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128 RESULT_VALUE : FX_2 := 0.0;
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129 LOWEST_ACCEPTABLE_VALUE : FX_2
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130 := FX_2 (DEL4 * FORTH );
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131 HIGHEST_ACCEPTABLE_VALUE : FX_2
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132 := FX_2 (DEL4 * (FORTH + 1) );
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133 BEGIN
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134 IF EQUAL (3, 3) THEN -- A NOT MODEL NUMBER
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135 A := FX_2 (3 * (DEL4 * FORTH + DEL1) );
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136 B := 3;
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137 END IF;
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138
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139 RESULT_VALUE := A / B;
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140
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141 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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142 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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143 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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144 & "FOR FIXED / INTEGER FOR NON-MODEL NUMBERS");
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145 END IF;
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146 END C;
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147
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148 --------------------------------------------------
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149
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150
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151 RESULT;
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152
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153 END C45531F;
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