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111
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1 -- C45531P.DEP
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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 = 48.
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29 -- THIS TEST USES VALUES OF DELTA WHICH ARE GREATER THAN OR
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30 -- EQUAL TO 0.5.
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31 --
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32 -- TEST CASES ARE:
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33 -- A) FIXED / INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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34 -- B) FIXED / INTEGER WITH NUMERATOR MODEL NUMBER AND RESULT NOT.
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35 -- C) FIXED / INTEGER FOR NON-MODEL NUMBERS.
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36 --
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37 -- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
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38 -- WITH RANGE <, =, AND > THAN 1.0 AND
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39 -- WITH DELTA <, =, AND > THAN 1.0.
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40
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41 -- APPLICABILITY CRITERIA:
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42 -- THIS TEST IS APPLICABLE FOR IMPLEMENTATIONS WHICH HAVE A
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43 -- 'MAX_MANTISSA OF 47 OR GREATER.
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44
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45 -- IF 'MAX_MANTISSA >= 47 IS NOT SUPPORTED THEN THE DECLARATION OF
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46 -- 'TYPE FX_OP5' MUST BE REJECTED.
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47
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48 -- HISTORY:
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49 -- NTW 09/08/86 CREATED ORIGINAL TEST.
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50 -- RJW 11/05/86 REVISED COMMENTS.
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51 -- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
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52 -- BCB 04/27/90 REVISED APPLICABILITY CRITERIA.
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53
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54 WITH REPORT;
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55 PROCEDURE C45531P IS
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56
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57 USE REPORT;
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58
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59 MIN_WORD_LENGTH : CONSTANT := 48;
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60 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
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61 FORTH : CONSTANT := FULL_SCALE / 4;
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62 RNG1 : CONSTANT := FULL_SCALE * 0.5;
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63 TYPE FX_0P5 IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5;
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64 -- N/A => ERROR.
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65 TYPE FX_1 IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0;
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66 TYPE FX_RNG1 IS DELTA RNG1
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67 RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1);
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68
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69 BEGIN TEST ("C45531P", "MIXED FIXED POINT AND INTEGER ""/"" "
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70 & "FOR DELTA <, =, > 1.0");
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71
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72 --------------------------------------------------
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73
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74 -- CASE A) FIXED / INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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75
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76 A: DECLARE
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77 A : FX_0P5 := 0.0;
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78 B : INTEGER := 0;
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79 RESULT_VALUE : FX_0P5 := 0.0;
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80 LOWEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (1.5);
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81 HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (1.5);
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82 BEGIN
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83 IF EQUAL (3, 3) THEN
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84 A := FX_0P5 (7.5); -- A MODEL NUMBER
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85 B := 5;
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86 END IF;
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87
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88 RESULT_VALUE := A / B;
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89
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90 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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91 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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92 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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93 & "FOR FIXED / INTEGER "
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94 & "WHEN ALL VALUES ARE MODEL NUMBERS");
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95 END IF;
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96 END A;
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97
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98 --------------------------------------------------
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99
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100 -- CASE B) FIXED / INTEGER WITH NUMERATOR MODEL NUMBER, RESULT NOT
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101
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102 B: DECLARE
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103 A : FX_1 := 0.0;
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104 B : INTEGER := 0;
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105 RESULT_VALUE : FX_1 := 0.0;
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106 LOWEST_ACCEPTABLE_VALUE : FX_1
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107 := FX_1 (FORTH );
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108 HIGHEST_ACCEPTABLE_VALUE : FX_1
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109 := FX_1 (FORTH + 1);
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110 BEGIN
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111 IF EQUAL (3, 3) THEN
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112 A := FX_1 (3 * FORTH + 1); -- A MODEL NUMBER
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113 B := 3;
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114 END IF;
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115
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116 RESULT_VALUE := A / B;
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117
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118 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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119 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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120 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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121 & "FOR FIXED / INTEGER WITH NUMERATOR MODEL "
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122 & "NUMBER, RESULT NOT");
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123
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124 END IF;
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125 END B;
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126
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127 --------------------------------------------------
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128
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129 -- CASE C) FIXED / INTEGER FOR NON-MODEL NUMBERS
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130
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131 C: DECLARE
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132 A : FX_RNG1 := 0.0;
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133 B : INTEGER := 0;
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134 RESULT_VALUE : FX_RNG1 := 0.0;
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135 LOWEST_ACCEPTABLE_VALUE : FX_RNG1
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136 := FX_RNG1 (RNG1 * FORTH );
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137 HIGHEST_ACCEPTABLE_VALUE : FX_RNG1
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138 := FX_RNG1 (RNG1 * (FORTH + 1) );
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139 BEGIN
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140 IF EQUAL (3, 3) THEN -- A NOT MODEL NUMBER
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141 A := FX_RNG1 (3 * (RNG1 * FORTH + 0.5) );
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142 B := 3;
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143 END IF;
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144
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145 RESULT_VALUE := A / B;
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146
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147 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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148 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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149 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL "
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150 & "FOR FIXED / INTEGER FOR NON-MODEL NUMBERS");
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151 END IF;
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152 END C;
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153
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154 --------------------------------------------------
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155
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156
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157 RESULT;
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158
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159 END C45531P;
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