981
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1 INTEGER FUNCTION I1MACH(I) |
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2 C |
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3 C I/O UNIT NUMBERS. |
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4 C |
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5 C I1MACH( 1) = THE STANDARD INPUT UNIT. |
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6 C |
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7 C I1MACH( 2) = THE STANDARD OUTPUT UNIT. |
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8 C |
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9 C I1MACH( 3) = THE STANDARD PUNCH UNIT. |
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10 C |
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11 C I1MACH( 4) = THE STANDARD ERROR MESSAGE UNIT. |
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12 C |
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13 C WORDS. |
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14 C |
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15 C I1MACH( 5) = THE NUMBER OF BITS PER INTEGER STORAGE UNIT. |
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16 C |
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17 C I1MACH( 6) = THE NUMBER OF CHARACTERS PER CHARACTER STORAGE UNIT. |
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18 C FOR FORTRAN 77, THIS IS ALWAYS 1. FOR FORTRAN 66, |
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19 C CHARACTER STORAGE UNIT = INTEGER STORAGE UNIT. |
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20 C |
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21 C INTEGERS. |
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22 C |
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23 C ASSUME INTEGERS ARE REPRESENTED IN THE S-DIGIT, BASE-A FORM |
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24 C |
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25 C SIGN ( X(S-1)*A**(S-1) + ... + X(1)*A + X(0) ) |
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26 C |
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27 C WHERE 0 .LE. X(I) .LT. A FOR I=0,...,S-1. |
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28 C |
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29 C I1MACH( 7) = A, THE BASE. |
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30 C |
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31 C I1MACH( 8) = S, THE NUMBER OF BASE-A DIGITS. |
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32 C |
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33 C I1MACH( 9) = A**S - 1, THE LARGEST MAGNITUDE. |
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34 C |
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35 C FLOATING-POINT NUMBERS. |
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36 C |
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37 C ASSUME FLOATING-POINT NUMBERS ARE REPRESENTED IN THE T-DIGIT, |
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38 C BASE-B FORM |
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39 C |
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40 C SIGN (B**E)*( (X(1)/B) + ... + (X(T)/B**T) ) |
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41 C |
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42 C WHERE 0 .LE. X(I) .LT. B FOR I=1,...,T, |
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43 C 0 .LT. X(1), AND EMIN .LE. E .LE. EMAX. |
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44 C |
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45 C I1MACH(10) = B, THE BASE. |
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46 C |
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47 C SINGLE-PRECISION |
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48 C |
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49 C I1MACH(11) = T, THE NUMBER OF BASE-B DIGITS. |
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50 C |
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51 C I1MACH(12) = EMIN, THE SMALLEST EXPONENT E. |
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52 C |
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53 C I1MACH(13) = EMAX, THE LARGEST EXPONENT E. |
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54 C |
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55 C DOUBLE-PRECISION |
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56 C |
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57 C I1MACH(14) = T, THE NUMBER OF BASE-B DIGITS. |
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58 C |
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59 C I1MACH(15) = EMIN, THE SMALLEST EXPONENT E. |
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60 C |
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61 C I1MACH(16) = EMAX, THE LARGEST EXPONENT E. |
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62 C |
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63 C TO ALTER THIS FUNCTION FOR A PARTICULAR ENVIRONMENT, |
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64 C THE DESIRED SET OF DATA STATEMENTS SHOULD BE ACTIVATED BY |
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65 C REMOVING THE C FROM COLUMN 1. ALSO, THE VALUES OF |
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66 C I1MACH(1) - I1MACH(4) SHOULD BE CHECKED FOR CONSISTENCY |
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67 C WITH THE LOCAL OPERATING SYSTEM. FOR FORTRAN 77, YOU MAY WISH |
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68 C TO ADJUST THE DATA STATEMENT SO IMACH(6) IS SET TO 1, AND |
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69 C THEN TO COMMENT OUT THE EXECUTABLE TEST ON I .EQ. 6 BELOW. |
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70 C ON RARE MACHINES A STATIC STATEMENT MAY NEED TO BE ADDED. |
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71 C (BUT PROBABLY MORE SYSTEMS PROHIBIT IT THAN REQUIRE IT.) |
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72 C |
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73 C FOR IEEE-ARITHMETIC MACHINES (BINARY STANDARD), THE FIRST |
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74 C SET OF CONSTANTS BELOW SHOULD BE APPROPRIATE, EXCEPT PERHAPS |
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75 C FOR IMACH(1) - IMACH(4). |
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76 C |
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77 INTEGER IMACH(16),OUTPUT,SANITY |
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78 C |
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79 EQUIVALENCE (IMACH(4),OUTPUT) |
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80 C |
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81 C MACHINE CONSTANTS FOR IEEE ARITHMETIC MACHINES, SUCH AS THE AT&T |
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82 C 3B SERIES, MOTOROLA 68000 BASED MACHINES (E.G. SUN 3 AND AT&T |
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83 C PC 7300), AND 8087 BASED MICROS (E.G. IBM PC AND AT&T 6300). |
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84 C |
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85 C DATA IMACH( 1) / 5 / |
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86 C DATA IMACH( 2) / 6 / |
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87 C DATA IMACH( 3) / 7 / |
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88 C DATA IMACH( 4) / 6 / |
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89 C DATA IMACH( 5) / 32 / |
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90 C DATA IMACH( 6) / 4 / |
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91 C DATA IMACH( 7) / 2 / |
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92 C DATA IMACH( 8) / 31 / |
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93 C DATA IMACH( 9) / 2147483647 / |
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94 C DATA IMACH(10) / 2 / |
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95 C DATA IMACH(11) / 24 / |
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96 C DATA IMACH(12) / -125 / |
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97 C DATA IMACH(13) / 128 / |
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98 C DATA IMACH(14) / 53 / |
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99 C DATA IMACH(15) / -1021 / |
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100 C DATA IMACH(16) / 1024 /, SANITY/987/ |
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101 C |
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102 C MACHINE CONSTANTS FOR AMDAHL MACHINES. |
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103 C |
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104 C DATA IMACH( 1) / 5 / |
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105 C DATA IMACH( 2) / 6 / |
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106 C DATA IMACH( 3) / 7 / |
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107 C DATA IMACH( 4) / 6 / |
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108 C DATA IMACH( 5) / 32 / |
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109 C DATA IMACH( 6) / 4 / |
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110 C DATA IMACH( 7) / 2 / |
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111 C DATA IMACH( 8) / 31 / |
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112 C DATA IMACH( 9) / 2147483647 / |
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113 C DATA IMACH(10) / 16 / |
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114 C DATA IMACH(11) / 6 / |
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115 C DATA IMACH(12) / -64 / |
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116 C DATA IMACH(13) / 63 / |
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117 C DATA IMACH(14) / 14 / |
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118 C DATA IMACH(15) / -64 / |
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119 C DATA IMACH(16) / 63 /, SANITY/987/ |
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120 C |
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121 C MACHINE CONSTANTS FOR THE BURROUGHS 1700 SYSTEM. |
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122 C |
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123 C DATA IMACH( 1) / 7 / |
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124 C DATA IMACH( 2) / 2 / |
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125 C DATA IMACH( 3) / 2 / |
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126 C DATA IMACH( 4) / 2 / |
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127 C DATA IMACH( 5) / 36 / |
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128 C DATA IMACH( 6) / 4 / |
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129 C DATA IMACH( 7) / 2 / |
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130 C DATA IMACH( 8) / 33 / |
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131 C DATA IMACH( 9) / Z1FFFFFFFF / |
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132 C DATA IMACH(10) / 2 / |
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133 C DATA IMACH(11) / 24 / |
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134 C DATA IMACH(12) / -256 / |
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135 C DATA IMACH(13) / 255 / |
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136 C DATA IMACH(14) / 60 / |
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137 C DATA IMACH(15) / -256 / |
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138 C DATA IMACH(16) / 255 /, SANITY/987/ |
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139 C |
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140 C MACHINE CONSTANTS FOR THE BURROUGHS 5700 SYSTEM. |
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141 C |
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142 C DATA IMACH( 1) / 5 / |
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143 C DATA IMACH( 2) / 6 / |
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144 C DATA IMACH( 3) / 7 / |
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145 C DATA IMACH( 4) / 6 / |
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146 C DATA IMACH( 5) / 48 / |
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147 C DATA IMACH( 6) / 6 / |
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148 C DATA IMACH( 7) / 2 / |
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149 C DATA IMACH( 8) / 39 / |
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150 C DATA IMACH( 9) / O0007777777777777 / |
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151 C DATA IMACH(10) / 8 / |
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152 C DATA IMACH(11) / 13 / |
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153 C DATA IMACH(12) / -50 / |
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154 C DATA IMACH(13) / 76 / |
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155 C DATA IMACH(14) / 26 / |
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156 C DATA IMACH(15) / -50 / |
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157 C DATA IMACH(16) / 76 /, SANITY/987/ |
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158 C |
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159 C MACHINE CONSTANTS FOR THE BURROUGHS 6700/7700 SYSTEMS. |
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160 C |
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161 C DATA IMACH( 1) / 5 / |
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162 C DATA IMACH( 2) / 6 / |
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163 C DATA IMACH( 3) / 7 / |
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164 C DATA IMACH( 4) / 6 / |
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165 C DATA IMACH( 5) / 48 / |
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166 C DATA IMACH( 6) / 6 / |
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167 C DATA IMACH( 7) / 2 / |
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168 C DATA IMACH( 8) / 39 / |
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169 C DATA IMACH( 9) / O0007777777777777 / |
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170 C DATA IMACH(10) / 8 / |
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171 C DATA IMACH(11) / 13 / |
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172 C DATA IMACH(12) / -50 / |
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173 C DATA IMACH(13) / 76 / |
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174 C DATA IMACH(14) / 26 / |
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175 C DATA IMACH(15) / -32754 / |
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176 C DATA IMACH(16) / 32780 /, SANITY/987/ |
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177 C |
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178 C MACHINE CONSTANTS FOR FTN4 ON THE CDC 6000/7000 SERIES. |
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179 C |
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180 C DATA IMACH( 1) / 5 / |
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181 C DATA IMACH( 2) / 6 / |
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182 C DATA IMACH( 3) / 7 / |
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183 C DATA IMACH( 4) / 6 / |
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184 C DATA IMACH( 5) / 60 / |
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185 C DATA IMACH( 6) / 10 / |
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186 C DATA IMACH( 7) / 2 / |
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187 C DATA IMACH( 8) / 48 / |
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188 C DATA IMACH( 9) / 00007777777777777777B / |
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189 C DATA IMACH(10) / 2 / |
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190 C DATA IMACH(11) / 47 / |
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191 C DATA IMACH(12) / -929 / |
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192 C DATA IMACH(13) / 1070 / |
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193 C DATA IMACH(14) / 94 / |
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194 C DATA IMACH(15) / -929 / |
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195 C DATA IMACH(16) / 1069 /, SANITY/987/ |
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196 C |
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197 C MACHINE CONSTANTS FOR FTN5 ON THE CDC 6000/7000 SERIES. |
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198 C |
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199 C DATA IMACH( 1) / 5 / |
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200 C DATA IMACH( 2) / 6 / |
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201 C DATA IMACH( 3) / 7 / |
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202 C DATA IMACH( 4) / 6 / |
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203 C DATA IMACH( 5) / 60 / |
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204 C DATA IMACH( 6) / 10 / |
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205 C DATA IMACH( 7) / 2 / |
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206 C DATA IMACH( 8) / 48 / |
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207 C DATA IMACH( 9) / O"00007777777777777777" / |
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208 C DATA IMACH(10) / 2 / |
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209 C DATA IMACH(11) / 47 / |
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210 C DATA IMACH(12) / -929 / |
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211 C DATA IMACH(13) / 1070 / |
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212 C DATA IMACH(14) / 94 / |
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213 C DATA IMACH(15) / -929 / |
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214 C DATA IMACH(16) / 1069 /, SANITY/987/ |
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215 C |
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216 C MACHINE CONSTANTS FOR CONVEX C-1. |
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217 C |
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218 C DATA IMACH( 1) / 5 / |
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219 C DATA IMACH( 2) / 6 / |
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220 C DATA IMACH( 3) / 7 / |
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221 C DATA IMACH( 4) / 6 / |
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222 C DATA IMACH( 5) / 32 / |
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223 C DATA IMACH( 6) / 4 / |
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224 C DATA IMACH( 7) / 2 / |
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225 C DATA IMACH( 8) / 31 / |
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226 C DATA IMACH( 9) / 2147483647 / |
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227 C DATA IMACH(10) / 2 / |
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228 C DATA IMACH(11) / 24 / |
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229 C DATA IMACH(12) / -128 / |
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230 C DATA IMACH(13) / 127 / |
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231 C DATA IMACH(14) / 53 / |
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232 C DATA IMACH(15) /-1024 / |
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233 C DATA IMACH(16) / 1023 /, SANITY/987/ |
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234 C |
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235 C MACHINE CONSTANTS FOR THE CRAY 1, XMP, 2, AND 3. |
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236 C |
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237 C DATA IMACH( 1) / 5 / |
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238 C DATA IMACH( 2) / 6 / |
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239 C DATA IMACH( 3) / 102 / |
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240 C DATA IMACH( 4) / 6 / |
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241 C DATA IMACH( 5) / 64 / |
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242 C DATA IMACH( 6) / 8 / |
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243 C DATA IMACH( 7) / 2 / |
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244 C DATA IMACH( 8) / 63 / |
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245 C DATA IMACH( 9) / 777777777777777777777B / |
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246 C DATA IMACH(10) / 2 / |
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247 C DATA IMACH(11) / 47 / |
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248 C DATA IMACH(12) / -8189 / |
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249 C DATA IMACH(13) / 8190 / |
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250 C DATA IMACH(14) / 94 / |
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251 C DATA IMACH(15) / -8099 / |
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252 C DATA IMACH(16) / 8190 /, SANITY/987/ |
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253 C |
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254 C MACHINE CONSTANTS FOR THE DATA GENERAL ECLIPSE S/200. |
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255 C |
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256 C DATA IMACH( 1) / 11 / |
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257 C DATA IMACH( 2) / 12 / |
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258 C DATA IMACH( 3) / 8 / |
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259 C DATA IMACH( 4) / 10 / |
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260 C DATA IMACH( 5) / 16 / |
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261 C DATA IMACH( 6) / 2 / |
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262 C DATA IMACH( 7) / 2 / |
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263 C DATA IMACH( 8) / 15 / |
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264 C DATA IMACH( 9) /32767 / |
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265 C DATA IMACH(10) / 16 / |
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266 C DATA IMACH(11) / 6 / |
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267 C DATA IMACH(12) / -64 / |
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268 C DATA IMACH(13) / 63 / |
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269 C DATA IMACH(14) / 14 / |
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270 C DATA IMACH(15) / -64 / |
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271 C DATA IMACH(16) / 63 /, SANITY/987/ |
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272 C |
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273 C MACHINE CONSTANTS FOR THE HARRIS SLASH 6 AND SLASH 7. |
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274 C |
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275 C DATA IMACH( 1) / 5 / |
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276 C DATA IMACH( 2) / 6 / |
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277 C DATA IMACH( 3) / 0 / |
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278 C DATA IMACH( 4) / 6 / |
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279 C DATA IMACH( 5) / 24 / |
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280 C DATA IMACH( 6) / 3 / |
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281 C DATA IMACH( 7) / 2 / |
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282 C DATA IMACH( 8) / 23 / |
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283 C DATA IMACH( 9) / 8388607 / |
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284 C DATA IMACH(10) / 2 / |
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285 C DATA IMACH(11) / 23 / |
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286 C DATA IMACH(12) / -127 / |
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287 C DATA IMACH(13) / 127 / |
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288 C DATA IMACH(14) / 38 / |
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289 C DATA IMACH(15) / -127 / |
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290 C DATA IMACH(16) / 127 /, SANITY/987/ |
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291 C |
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292 C MACHINE CONSTANTS FOR THE HONEYWELL DPS 8/70 SERIES. |
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293 C |
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294 C DATA IMACH( 1) / 5 / |
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295 C DATA IMACH( 2) / 6 / |
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296 C DATA IMACH( 3) / 43 / |
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297 C DATA IMACH( 4) / 6 / |
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298 C DATA IMACH( 5) / 36 / |
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299 C DATA IMACH( 6) / 4 / |
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300 C DATA IMACH( 7) / 2 / |
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301 C DATA IMACH( 8) / 35 / |
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302 C DATA IMACH( 9) / O377777777777 / |
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303 C DATA IMACH(10) / 2 / |
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304 C DATA IMACH(11) / 27 / |
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305 C DATA IMACH(12) / -127 / |
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306 C DATA IMACH(13) / 127 / |
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307 C DATA IMACH(14) / 63 / |
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308 C DATA IMACH(15) / -127 / |
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309 C DATA IMACH(16) / 127 /, SANITY/987/ |
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310 C |
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311 C MACHINE CONSTANTS FOR THE IBM 360/370 SERIES, |
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312 C THE XEROX SIGMA 5/7/9 AND THE SEL SYSTEMS 85/86. |
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313 C |
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314 C DATA IMACH( 1) / 5 / |
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315 C DATA IMACH( 2) / 6 / |
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316 C DATA IMACH( 3) / 7 / |
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317 C DATA IMACH( 4) / 6 / |
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318 C DATA IMACH( 5) / 32 / |
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319 C DATA IMACH( 6) / 4 / |
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320 C DATA IMACH( 7) / 2 / |
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321 C DATA IMACH( 8) / 31 / |
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322 C DATA IMACH( 9) / Z7FFFFFFF / |
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323 C DATA IMACH(10) / 16 / |
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324 C DATA IMACH(11) / 6 / |
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325 C DATA IMACH(12) / -64 / |
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326 C DATA IMACH(13) / 63 / |
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327 C DATA IMACH(14) / 14 / |
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328 C DATA IMACH(15) / -64 / |
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329 C DATA IMACH(16) / 63 /, SANITY/987/ |
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330 C |
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331 C MACHINE CONSTANTS FOR THE INTERDATA 8/32 |
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332 C WITH THE UNIX SYSTEM FORTRAN 77 COMPILER. |
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333 C |
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334 C FOR THE INTERDATA FORTRAN VII COMPILER REPLACE |
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335 C THE Z'S SPECIFYING HEX CONSTANTS WITH Y'S. |
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336 C |
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337 C DATA IMACH( 1) / 5 / |
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338 C DATA IMACH( 2) / 6 / |
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339 C DATA IMACH( 3) / 6 / |
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340 C DATA IMACH( 4) / 6 / |
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341 C DATA IMACH( 5) / 32 / |
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342 C DATA IMACH( 6) / 4 / |
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343 C DATA IMACH( 7) / 2 / |
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344 C DATA IMACH( 8) / 31 / |
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345 C DATA IMACH( 9) / Z'7FFFFFFF' / |
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346 C DATA IMACH(10) / 16 / |
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347 C DATA IMACH(11) / 6 / |
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348 C DATA IMACH(12) / -64 / |
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349 C DATA IMACH(13) / 62 / |
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350 C DATA IMACH(14) / 14 / |
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351 C DATA IMACH(15) / -64 / |
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352 C DATA IMACH(16) / 62 /, SANITY/987/ |
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353 C |
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354 C MACHINE CONSTANTS FOR THE PDP-10 (KA PROCESSOR). |
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355 C |
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356 C DATA IMACH( 1) / 5 / |
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357 C DATA IMACH( 2) / 6 / |
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358 C DATA IMACH( 3) / 7 / |
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359 C DATA IMACH( 4) / 6 / |
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360 C DATA IMACH( 5) / 36 / |
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361 C DATA IMACH( 6) / 5 / |
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362 C DATA IMACH( 7) / 2 / |
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363 C DATA IMACH( 8) / 35 / |
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364 C DATA IMACH( 9) / "377777777777 / |
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365 C DATA IMACH(10) / 2 / |
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366 C DATA IMACH(11) / 27 / |
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367 C DATA IMACH(12) / -128 / |
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368 C DATA IMACH(13) / 127 / |
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369 C DATA IMACH(14) / 54 / |
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370 C DATA IMACH(15) / -101 / |
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371 C DATA IMACH(16) / 127 /, SANITY/987/ |
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372 C |
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373 C MACHINE CONSTANTS FOR THE PDP-10 (KI PROCESSOR). |
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374 C |
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375 C DATA IMACH( 1) / 5 / |
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376 C DATA IMACH( 2) / 6 / |
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377 C DATA IMACH( 3) / 7 / |
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378 C DATA IMACH( 4) / 6 / |
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379 C DATA IMACH( 5) / 36 / |
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380 C DATA IMACH( 6) / 5 / |
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381 C DATA IMACH( 7) / 2 / |
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382 C DATA IMACH( 8) / 35 / |
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383 C DATA IMACH( 9) / "377777777777 / |
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384 C DATA IMACH(10) / 2 / |
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385 C DATA IMACH(11) / 27 / |
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386 C DATA IMACH(12) / -128 / |
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387 C DATA IMACH(13) / 127 / |
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388 C DATA IMACH(14) / 62 / |
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389 C DATA IMACH(15) / -128 / |
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390 C DATA IMACH(16) / 127 /, SANITY/987/ |
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391 C |
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392 C MACHINE CONSTANTS FOR PDP-11 FORTRANS SUPPORTING |
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393 C 32-BIT INTEGER ARITHMETIC. |
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394 C |
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395 C DATA IMACH( 1) / 5 / |
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396 C DATA IMACH( 2) / 6 / |
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397 C DATA IMACH( 3) / 7 / |
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398 C DATA IMACH( 4) / 6 / |
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399 C DATA IMACH( 5) / 32 / |
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400 C DATA IMACH( 6) / 4 / |
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401 C DATA IMACH( 7) / 2 / |
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402 C DATA IMACH( 8) / 31 / |
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403 C DATA IMACH( 9) / 2147483647 / |
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404 C DATA IMACH(10) / 2 / |
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405 C DATA IMACH(11) / 24 / |
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406 C DATA IMACH(12) / -127 / |
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407 C DATA IMACH(13) / 127 / |
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408 C DATA IMACH(14) / 56 / |
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409 C DATA IMACH(15) / -127 / |
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410 C DATA IMACH(16) / 127 /, SANITY/987/ |
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411 C |
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412 C MACHINE CONSTANTS FOR PDP-11 FORTRANS SUPPORTING |
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413 C 16-BIT INTEGER ARITHMETIC. |
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414 C |
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415 C DATA IMACH( 1) / 5 / |
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416 C DATA IMACH( 2) / 6 / |
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417 C DATA IMACH( 3) / 7 / |
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418 C DATA IMACH( 4) / 6 / |
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419 C DATA IMACH( 5) / 16 / |
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420 C DATA IMACH( 6) / 2 / |
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421 C DATA IMACH( 7) / 2 / |
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422 C DATA IMACH( 8) / 15 / |
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423 C DATA IMACH( 9) / 32767 / |
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424 C DATA IMACH(10) / 2 / |
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425 C DATA IMACH(11) / 24 / |
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426 C DATA IMACH(12) / -127 / |
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427 C DATA IMACH(13) / 127 / |
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428 C DATA IMACH(14) / 56 / |
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429 C DATA IMACH(15) / -127 / |
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430 C DATA IMACH(16) / 127 /, SANITY/987/ |
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431 C |
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432 C MACHINE CONSTANTS FOR THE PRIME 50 SERIES SYSTEMS |
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433 C WTIH 32-BIT INTEGERS AND 64V MODE INSTRUCTIONS, |
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434 C SUPPLIED BY IGOR BRAY. |
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435 C |
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436 C DATA IMACH( 1) / 1 / |
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437 C DATA IMACH( 2) / 1 / |
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438 C DATA IMACH( 3) / 2 / |
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439 C DATA IMACH( 4) / 1 / |
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440 C DATA IMACH( 5) / 32 / |
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441 C DATA IMACH( 6) / 4 / |
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442 C DATA IMACH( 7) / 2 / |
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443 C DATA IMACH( 8) / 31 / |
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444 C DATA IMACH( 9) / :17777777777 / |
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445 C DATA IMACH(10) / 2 / |
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446 C DATA IMACH(11) / 23 / |
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447 C DATA IMACH(12) / -127 / |
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448 C DATA IMACH(13) / +127 / |
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449 C DATA IMACH(14) / 47 / |
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450 C DATA IMACH(15) / -32895 / |
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451 C DATA IMACH(16) / +32637 /, SANITY/987/ |
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452 C |
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453 C MACHINE CONSTANTS FOR THE SEQUENT BALANCE 8000. |
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454 C |
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455 C DATA IMACH( 1) / 0 / |
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456 C DATA IMACH( 2) / 0 / |
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457 C DATA IMACH( 3) / 7 / |
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458 C DATA IMACH( 4) / 0 / |
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459 C DATA IMACH( 5) / 32 / |
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460 C DATA IMACH( 6) / 1 / |
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461 C DATA IMACH( 7) / 2 / |
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462 C DATA IMACH( 8) / 31 / |
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463 C DATA IMACH( 9) / 2147483647 / |
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464 C DATA IMACH(10) / 2 / |
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465 C DATA IMACH(11) / 24 / |
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466 C DATA IMACH(12) / -125 / |
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467 C DATA IMACH(13) / 128 / |
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468 C DATA IMACH(14) / 53 / |
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469 C DATA IMACH(15) / -1021 / |
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470 C DATA IMACH(16) / 1024 /, SANITY/987/ |
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471 C |
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472 C MACHINE CONSTANTS FOR THE UNIVAC 1100 SERIES. |
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473 C |
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474 C NOTE THAT THE PUNCH UNIT, I1MACH(3), HAS BEEN SET TO 7 |
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475 C WHICH IS APPROPRIATE FOR THE UNIVAC-FOR SYSTEM. |
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476 C IF YOU HAVE THE UNIVAC-FTN SYSTEM, SET IT TO 1. |
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477 C |
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478 C DATA IMACH( 1) / 5 / |
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479 C DATA IMACH( 2) / 6 / |
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480 C DATA IMACH( 3) / 7 / |
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481 C DATA IMACH( 4) / 6 / |
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482 C DATA IMACH( 5) / 36 / |
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483 C DATA IMACH( 6) / 6 / |
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484 C DATA IMACH( 7) / 2 / |
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485 C DATA IMACH( 8) / 35 / |
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486 C DATA IMACH( 9) / O377777777777 / |
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487 C DATA IMACH(10) / 2 / |
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488 C DATA IMACH(11) / 27 / |
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489 C DATA IMACH(12) / -128 / |
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490 C DATA IMACH(13) / 127 / |
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491 C DATA IMACH(14) / 60 / |
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492 C DATA IMACH(15) /-1024 / |
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493 C DATA IMACH(16) / 1023 /, SANITY/987/ |
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494 C |
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495 C MACHINE CONSTANTS FOR VAX. |
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496 C |
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497 DATA IMACH( 1) / 5 / |
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498 DATA IMACH( 2) / 6 / |
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499 DATA IMACH( 3) / 7 / |
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500 DATA IMACH( 4) / 6 / |
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501 DATA IMACH( 5) / 32 / |
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502 DATA IMACH( 6) / 4 / |
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503 DATA IMACH( 7) / 2 / |
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504 DATA IMACH( 8) / 31 / |
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505 DATA IMACH( 9) / 2147483647 / |
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506 DATA IMACH(10) / 2 / |
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507 DATA IMACH(11) / 24 / |
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508 DATA IMACH(12) / -127 / |
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509 DATA IMACH(13) / 127 / |
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510 DATA IMACH(14) / 56 / |
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511 DATA IMACH(15) / -127 / |
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512 DATA IMACH(16) / 127 /, SANITY/987/ |
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513 C |
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514 C *** ISSUE STOP 777 IF ALL DATA STATEMENTS ARE COMMENTED... |
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515 IF (SANITY .NE. 987) STOP 777 |
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516 IF (I .LT. 1 .OR. I .GT. 16) GO TO 10 |
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517 C |
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518 I1MACH = IMACH(I) |
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519 C/6S |
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520 C/7S |
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521 IF(I.EQ.6) I1MACH=1 |
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522 C/ |
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523 RETURN |
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524 10 WRITE(OUTPUT,1999) I |
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525 1999 FORMAT(' I1MACH - I OUT OF BOUNDS',I10) |
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526 CALL XSTOPX (' ') |
982
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527 I1MACH = 0 |
981
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528 END |