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111
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1 -- C45531M.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 4 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 LESS THAN 0.5.
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30 --
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31 -- TEST CASES ARE:
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32 -- A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
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33 -- B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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34 -- C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
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35 -- D) 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
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55 WITH REPORT;
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56 PROCEDURE C45531M IS
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57
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58 USE REPORT;
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59
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60 MIN_WORD_LENGTH : CONSTANT := 48;
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61 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
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62 FORTH : CONSTANT := FULL_SCALE / 4;
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63 DEL1 : CONSTANT := 0.5 / FULL_SCALE;
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64 DEL4 : CONSTANT := 4.0 * DEL1;
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65 TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 0.5 - DEL1 * 1;
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66 -- N/A => ERROR.
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67 TYPE FX_1 IS DELTA DEL1 * 2 RANGE -1.0 .. 1.0 - DEL1 * 2;
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68 TYPE FX_2 IS DELTA DEL1 * 4 RANGE -2.0 .. 2.0 - DEL1 * 4;
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69
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70 BEGIN TEST ("C45531M", "MIXED FIXED POINT AND INTEGER ""*"" "
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71 & "FOR RANGE <, =, > 1.0");
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72
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73 --------------------------------------------------
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74
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75 -- CASE A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
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76
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77 A: DECLARE
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78 A : INTEGER := 0;
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79 B : FX_0P5 := 0.0;
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80 RESULT_VALUE : FX_0P5 := 0.0;
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81 LOWEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (0.375);
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82 HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (0.375);
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83 BEGIN
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84 IF EQUAL (3, 3) THEN
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85 A := 3;
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86 B := FX_0P5 (0.125); -- A MODEL NUMBER
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87 END IF;
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88
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89 RESULT_VALUE := A * B;
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90
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91 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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92 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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93 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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94 & "FOR INTEGER * FIXED "
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95 & "WHEN ALL VALUES ARE MODEL NUMBERS");
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96 END IF;
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97 END A;
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98
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99 --------------------------------------------------
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100
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101 -- CASE B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
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102
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103 B: DECLARE
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104 A : FX_1 := 0.0;
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105 B : INTEGER := 0;
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106 RESULT_VALUE : FX_1 := 0.0;
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107 LOWEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.75);
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108 HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.75);
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109 BEGIN
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110 IF EQUAL (3, 3) THEN
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111 A := FX_1 (0.125); -- A MODEL NUMBER
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112 B := 6;
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113 END IF;
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114
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115 RESULT_VALUE := A * B;
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116
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117 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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118 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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119 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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120 & "FOR FIXED * INTEGER "
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121 & "WHEN ALL VALUES ARE MODEL NUMBERS");
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122 END IF;
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123 END B;
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124
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125 --------------------------------------------------
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126
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127 -- CASE C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
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128
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129 C: DECLARE
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130 A : INTEGER := 0;
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131 B : FX_2 := 0.0;
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132 RESULT_VALUE : FX_2 := 0.0;
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133 LOW_COUNT : CONSTANT := (3 * (FORTH + 0) );
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134 HIGH_COUNT : CONSTANT := (3 * (FORTH + 1) );
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135 LOWEST_ACCEPTABLE_VALUE : FX_2
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136 := FX_2 (DEL4 * LOW_COUNT );
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137 HIGHEST_ACCEPTABLE_VALUE : FX_2
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138 := FX_2 (DEL4 * HIGH_COUNT);
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139 BEGIN
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140 IF EQUAL (3, 3) THEN -- B NOT A MODEL NUMBER
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141 A := 3;
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142 B := FX_2 (DEL4 * FORTH + DEL1 );
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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 INTEGER * FIXED FOR NON-MODEL NUMBERS");
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151
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152 END IF;
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153 END C;
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154
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155 --------------------------------------------------
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156
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157 -- CASE D) FIXED * INTEGER FOR NON-MODEL NUMBERS.
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158
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159 D: DECLARE
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160 A : FX_2 := 0.0;
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161 B : INTEGER := 0;
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162 RESULT_VALUE : FX_2 := 0.0;
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163 LOW_COUNT : CONSTANT := (3 * (FORTH + 0) );
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164 HIGH_COUNT : CONSTANT := (3 * (FORTH + 1) );
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165 LOWEST_ACCEPTABLE_VALUE : FX_2
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166 := FX_2 (DEL4 * LOW_COUNT );
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167 HIGHEST_ACCEPTABLE_VALUE : FX_2
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168 := FX_2 (DEL4 * HIGH_COUNT);
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169 BEGIN
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170 IF EQUAL (3, 3) THEN -- A NOT A MODEL NUMBER
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171 A := FX_2 (DEL4 * FORTH + DEL1 );
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172 B := 3;
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173 END IF;
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174
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175 RESULT_VALUE := A * B;
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176
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177 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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178 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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179 FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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180 & "FOR FIXED * INTEGER FOR NON-MODEL NUMBERS");
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181 END IF;
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182 END D;
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183
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184 --------------------------------------------------
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185
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186
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187 RESULT;
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188
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189 END C45531M;
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