github.com/cockroachdb/apd/v3@v3.2.0/testdata/multiply.decTest (about)

     1  ------------------------------------------------------------------------
     2  -- multiply.decTest -- decimal multiplication                         --
     3  -- Copyright (c) Mike Cowlishaw,  1981, 2010.  All rights reserved.   --
     4  -- Parts copyright (c) IBM Corporation, 1981, 2008.                   --
     5  ------------------------------------------------------------------------
     6  -- Please see the document "General Decimal Arithmetic Testcases"     --
     7  -- at http://speleotrove.com/decimal for the description of           --
     8  -- these testcases.                                                   --
     9  --                                                                    --
    10  -- These testcases are experimental ('beta' versions), and they       --
    11  -- may contain errors.  They are offered on an as-is basis.  In       --
    12  -- particular, achieving the same results as the tests here is not    --
    13  -- a guarantee that an implementation complies with any Standard      --
    14  -- or specification.  The tests are not exhaustive.                   --
    15  --                                                                    --
    16  -- Please send comments, suggestions, and corrections to the author:  --
    17  --   Mike Cowlishaw, mfc@speleotrove.com                              --
    18  ------------------------------------------------------------------------
    19  version: 2.62
    20  
    21  extended:    1
    22  precision:   9
    23  rounding:    half_up
    24  maxExponent: 384
    25  minexponent: -383
    26  
    27  -- sanity checks (as base, above)
    28  mulx000 multiply 2      2 -> 4
    29  mulx001 multiply 2      3 -> 6
    30  mulx002 multiply 5      1 -> 5
    31  mulx003 multiply 5      2 -> 10
    32  mulx004 multiply 1.20   2 -> 2.40
    33  mulx005 multiply 1.20   0 -> 0.00
    34  mulx006 multiply 1.20  -2 -> -2.40
    35  mulx007 multiply -1.20  2 -> -2.40
    36  mulx008 multiply -1.20  0 -> -0.00
    37  mulx009 multiply -1.20 -2 -> 2.40
    38  mulx010 multiply 5.09 7.1 -> 36.139
    39  mulx011 multiply 2.5    4 -> 10.0
    40  mulx012 multiply 2.50   4 -> 10.00
    41  mulx013 multiply 1.23456789 1.00000000 -> 1.23456789 Rounded
    42  mulx014 multiply 9.999999999 9.999999999 -> 100.000000 Inexact Rounded
    43  mulx015 multiply 2.50   4 -> 10.00
    44  precision: 6
    45  mulx016 multiply 2.50   4 -> 10.00
    46  mulx017 multiply  9.999999999  9.999999999 ->  100.000 Inexact Rounded
    47  mulx018 multiply  9.999999999 -9.999999999 -> -100.000 Inexact Rounded
    48  mulx019 multiply -9.999999999  9.999999999 -> -100.000 Inexact Rounded
    49  mulx020 multiply -9.999999999 -9.999999999 ->  100.000 Inexact Rounded
    50  
    51  -- 1999.12.21: next one is a edge case if intermediate longs are used
    52  precision: 15
    53  mulx059 multiply 999999999999 9765625 -> 9.76562499999023E+18 Inexact Rounded
    54  precision: 30
    55  mulx160 multiply 999999999999 9765625 -> 9765624999990234375
    56  precision: 9
    57  -----
    58  
    59  -- zeros, etc.
    60  mulx021 multiply  0      0     ->  0
    61  mulx022 multiply  0     -0     -> -0
    62  mulx023 multiply -0      0     -> -0
    63  mulx024 multiply -0     -0     ->  0
    64  mulx025 multiply -0.0   -0.0   ->  0.00
    65  mulx026 multiply -0.0   -0.0   ->  0.00
    66  mulx027 multiply -0.0   -0.0   ->  0.00
    67  mulx028 multiply -0.0   -0.0   ->  0.00
    68  mulx030 multiply  5.00   1E-3  ->  0.00500
    69  mulx031 multiply  00.00  0.000 ->  0.00000
    70  mulx032 multiply  00.00  0E-3  ->  0.00000     -- rhs is 0
    71  mulx033 multiply  0E-3   00.00 ->  0.00000     -- lhs is 0
    72  mulx034 multiply -5.00   1E-3  -> -0.00500
    73  mulx035 multiply -00.00  0.000 -> -0.00000
    74  mulx036 multiply -00.00  0E-3  -> -0.00000     -- rhs is 0
    75  mulx037 multiply -0E-3   00.00 -> -0.00000     -- lhs is 0
    76  mulx038 multiply  5.00  -1E-3  -> -0.00500
    77  mulx039 multiply  00.00 -0.000 -> -0.00000
    78  mulx040 multiply  00.00 -0E-3  -> -0.00000     -- rhs is 0
    79  mulx041 multiply  0E-3  -00.00 -> -0.00000     -- lhs is 0
    80  mulx042 multiply -5.00  -1E-3  ->  0.00500
    81  mulx043 multiply -00.00 -0.000 ->  0.00000
    82  mulx044 multiply -00.00 -0E-3  ->  0.00000     -- rhs is 0
    83  mulx045 multiply -0E-3  -00.00 ->  0.00000     -- lhs is 0
    84  
    85  -- examples from decarith
    86  mulx050 multiply 1.20 3        -> 3.60
    87  mulx051 multiply 7    3        -> 21
    88  mulx052 multiply 0.9  0.8      -> 0.72
    89  mulx053 multiply 0.9  -0       -> -0.0
    90  mulx054 multiply 654321 654321 -> 4.28135971E+11  Inexact Rounded
    91  
    92  mulx060 multiply 123.45 1e7  ->  1.2345E+9
    93  mulx061 multiply 123.45 1e8  ->  1.2345E+10
    94  mulx062 multiply 123.45 1e+9 ->  1.2345E+11
    95  mulx063 multiply 123.45 1e10 ->  1.2345E+12
    96  mulx064 multiply 123.45 1e11 ->  1.2345E+13
    97  mulx065 multiply 123.45 1e12 ->  1.2345E+14
    98  mulx066 multiply 123.45 1e13 ->  1.2345E+15
    99  
   100  
   101  -- test some intermediate lengths
   102  precision: 9
   103  mulx080 multiply 0.1 123456789          -> 12345678.9
   104  mulx081 multiply 0.1 1234567891         -> 123456789 Inexact Rounded
   105  mulx082 multiply 0.1 12345678912        -> 1.23456789E+9 Inexact Rounded
   106  mulx083 multiply 0.1 12345678912345     -> 1.23456789E+12 Inexact Rounded
   107  mulx084 multiply 0.1 123456789          -> 12345678.9
   108  precision: 8
   109  mulx085 multiply 0.1 12345678912        -> 1.2345679E+9 Inexact Rounded
   110  mulx086 multiply 0.1 12345678912345     -> 1.2345679E+12 Inexact Rounded
   111  precision: 7
   112  mulx087 multiply 0.1 12345678912        -> 1.234568E+9 Inexact Rounded
   113  mulx088 multiply 0.1 12345678912345     -> 1.234568E+12 Inexact Rounded
   114  
   115  precision: 9
   116  mulx090 multiply 123456789          0.1 -> 12345678.9
   117  mulx091 multiply 1234567891         0.1 -> 123456789 Inexact Rounded
   118  mulx092 multiply 12345678912        0.1 -> 1.23456789E+9 Inexact Rounded
   119  mulx093 multiply 12345678912345     0.1 -> 1.23456789E+12 Inexact Rounded
   120  mulx094 multiply 123456789          0.1 -> 12345678.9
   121  precision: 8
   122  mulx095 multiply 12345678912        0.1 -> 1.2345679E+9 Inexact Rounded
   123  mulx096 multiply 12345678912345     0.1 -> 1.2345679E+12 Inexact Rounded
   124  precision: 7
   125  mulx097 multiply 12345678912        0.1 -> 1.234568E+9 Inexact Rounded
   126  mulx098 multiply 12345678912345     0.1 -> 1.234568E+12 Inexact Rounded
   127  
   128  -- test some more edge cases and carries
   129  maxexponent: 9999
   130  minexponent: -9999
   131  precision: 33
   132  mulx101 multiply 9 9   -> 81
   133  mulx102 multiply 9 90   -> 810
   134  mulx103 multiply 9 900   -> 8100
   135  mulx104 multiply 9 9000   -> 81000
   136  mulx105 multiply 9 90000   -> 810000
   137  mulx106 multiply 9 900000   -> 8100000
   138  mulx107 multiply 9 9000000   -> 81000000
   139  mulx108 multiply 9 90000000   -> 810000000
   140  mulx109 multiply 9 900000000   -> 8100000000
   141  mulx110 multiply 9 9000000000   -> 81000000000
   142  mulx111 multiply 9 90000000000   -> 810000000000
   143  mulx112 multiply 9 900000000000   -> 8100000000000
   144  mulx113 multiply 9 9000000000000   -> 81000000000000
   145  mulx114 multiply 9 90000000000000   -> 810000000000000
   146  mulx115 multiply 9 900000000000000   -> 8100000000000000
   147  mulx116 multiply 9 9000000000000000   -> 81000000000000000
   148  mulx117 multiply 9 90000000000000000   -> 810000000000000000
   149  mulx118 multiply 9 900000000000000000   -> 8100000000000000000
   150  mulx119 multiply 9 9000000000000000000   -> 81000000000000000000
   151  mulx120 multiply 9 90000000000000000000   -> 810000000000000000000
   152  mulx121 multiply 9 900000000000000000000   -> 8100000000000000000000
   153  mulx122 multiply 9 9000000000000000000000   -> 81000000000000000000000
   154  mulx123 multiply 9 90000000000000000000000   -> 810000000000000000000000
   155  -- test some more edge cases without carries
   156  mulx131 multiply 3 3   -> 9
   157  mulx132 multiply 3 30   -> 90
   158  mulx133 multiply 3 300   -> 900
   159  mulx134 multiply 3 3000   -> 9000
   160  mulx135 multiply 3 30000   -> 90000
   161  mulx136 multiply 3 300000   -> 900000
   162  mulx137 multiply 3 3000000   -> 9000000
   163  mulx138 multiply 3 30000000   -> 90000000
   164  mulx139 multiply 3 300000000   -> 900000000
   165  mulx140 multiply 3 3000000000   -> 9000000000
   166  mulx141 multiply 3 30000000000   -> 90000000000
   167  mulx142 multiply 3 300000000000   -> 900000000000
   168  mulx143 multiply 3 3000000000000   -> 9000000000000
   169  mulx144 multiply 3 30000000000000   -> 90000000000000
   170  mulx145 multiply 3 300000000000000   -> 900000000000000
   171  mulx146 multiply 3 3000000000000000   -> 9000000000000000
   172  mulx147 multiply 3 30000000000000000   -> 90000000000000000
   173  mulx148 multiply 3 300000000000000000   -> 900000000000000000
   174  mulx149 multiply 3 3000000000000000000   -> 9000000000000000000
   175  mulx150 multiply 3 30000000000000000000   -> 90000000000000000000
   176  mulx151 multiply 3 300000000000000000000   -> 900000000000000000000
   177  mulx152 multiply 3 3000000000000000000000   -> 9000000000000000000000
   178  mulx153 multiply 3 30000000000000000000000   -> 90000000000000000000000
   179  
   180  maxexponent: 999999999
   181  minexponent: -999999999
   182  precision: 9
   183  -- test some cases that are close to exponent overflow/underflow
   184  mulx170 multiply 1 9e999999999    -> 9E+999999999
   185  mulx171 multiply 1 9.9e999999999  -> 9.9E+999999999
   186  mulx172 multiply 1 9.99e999999999 -> 9.99E+999999999
   187  mulx173 multiply 9e999999999    1 -> 9E+999999999
   188  mulx174 multiply 9.9e999999999  1 -> 9.9E+999999999
   189  mulx176 multiply 9.99e999999999 1 -> 9.99E+999999999
   190  mulx177 multiply 1 9.99999999e999999999 -> 9.99999999E+999999999
   191  mulx178 multiply 9.99999999e999999999 1 -> 9.99999999E+999999999
   192  
   193  mulx180 multiply 0.1 9e-999999998   -> 9E-999999999
   194  mulx181 multiply 0.1 99e-999999998  -> 9.9E-999999998
   195  mulx182 multiply 0.1 999e-999999998 -> 9.99E-999999997
   196  
   197  mulx183 multiply 0.1 9e-999999998     -> 9E-999999999
   198  mulx184 multiply 0.1 99e-999999998    -> 9.9E-999999998
   199  mulx185 multiply 0.1 999e-999999998   -> 9.99E-999999997
   200  mulx186 multiply 0.1 999e-999999997   -> 9.99E-999999996
   201  mulx187 multiply 0.1 9999e-999999997  -> 9.999E-999999995
   202  mulx188 multiply 0.1 99999e-999999997 -> 9.9999E-999999994
   203  
   204  mulx190 multiply 1 9e-999999998   -> 9E-999999998
   205  mulx191 multiply 1 99e-999999998  -> 9.9E-999999997
   206  mulx192 multiply 1 999e-999999998 -> 9.99E-999999996
   207  mulx193 multiply 9e-999999998   1 -> 9E-999999998
   208  mulx194 multiply 99e-999999998  1 -> 9.9E-999999997
   209  mulx195 multiply 999e-999999998 1 -> 9.99E-999999996
   210  
   211  mulx196 multiply 1e-599999999 1e-400000000 -> 1E-999999999
   212  mulx197 multiply 1e-600000000 1e-399999999 -> 1E-999999999
   213  mulx198 multiply 1.2e-599999999 1.2e-400000000 -> 1.44E-999999999
   214  mulx199 multiply 1.2e-600000000 1.2e-399999999 -> 1.44E-999999999
   215  
   216  mulx201 multiply 1e599999999 1e400000000 -> 1E+999999999
   217  mulx202 multiply 1e600000000 1e399999999 -> 1E+999999999
   218  mulx203 multiply 1.2e599999999 1.2e400000000 -> 1.44E+999999999
   219  mulx204 multiply 1.2e600000000 1.2e399999999 -> 1.44E+999999999
   220  
   221  -- long operand triangle
   222  precision: 33
   223  mulx246 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193369671916511992830 Inexact Rounded
   224  precision: 32
   225  mulx247 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119336967191651199283  Inexact Rounded
   226  precision: 31
   227  mulx248 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011933696719165119928   Inexact Rounded
   228  precision: 30
   229  mulx249 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193369671916511993    Inexact Rounded
   230  precision: 29
   231  mulx250 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119336967191651199     Inexact Rounded
   232  precision: 28
   233  mulx251 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011933696719165120      Inexact Rounded
   234  precision: 27
   235  mulx252 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193369671916512       Inexact Rounded
   236  precision: 26
   237  mulx253 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119336967191651        Inexact Rounded
   238  precision: 25
   239  mulx254 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011933696719165         Inexact Rounded
   240  precision: 24
   241  mulx255 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193369671917          Inexact Rounded
   242  precision: 23
   243  mulx256 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119336967192           Inexact Rounded
   244  precision: 22
   245  mulx257 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011933696719            Inexact Rounded
   246  precision: 21
   247  mulx258 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193369672             Inexact Rounded
   248  precision: 20
   249  mulx259 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119336967              Inexact Rounded
   250  precision: 19
   251  mulx260 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011933697               Inexact Rounded
   252  precision: 18
   253  mulx261 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193370                Inexact Rounded
   254  precision: 17
   255  mulx262 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119337                 Inexact Rounded
   256  precision: 16
   257  mulx263 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908011934                  Inexact Rounded
   258  precision: 15
   259  mulx264 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801193                   Inexact Rounded
   260  precision: 14
   261  mulx265 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080119                    Inexact Rounded
   262  precision: 13
   263  mulx266 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908012                     Inexact Rounded
   264  precision: 12
   265  mulx267 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.290801                      Inexact Rounded
   266  precision: 11
   267  mulx268 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29080                       Inexact Rounded
   268  precision: 10
   269  mulx269 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.2908                        Inexact Rounded
   270  precision:  9
   271  mulx270 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.291                         Inexact Rounded
   272  precision:  8
   273  mulx271 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.29                          Inexact Rounded
   274  precision:  7
   275  mulx272 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433.3                           Inexact Rounded
   276  precision:  6
   277  mulx273 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 145433                            Inexact Rounded
   278  precision:  5
   279  mulx274 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 1.4543E+5                         Inexact Rounded
   280  precision:  4
   281  mulx275 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 1.454E+5                         Inexact Rounded
   282  precision:  3
   283  mulx276 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 1.45E+5                         Inexact Rounded
   284  precision:  2
   285  mulx277 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 1.5E+5                         Inexact Rounded
   286  precision:  1
   287  mulx278 multiply 30269.587755640502150977251770554 4.8046009735990873395936309640543 -> 1E+5                          Inexact Rounded
   288  
   289  -- test some edge cases with exact rounding
   290  maxexponent: 9999
   291  minexponent: -9999
   292  precision: 9
   293  mulx301 multiply 9 9   -> 81
   294  mulx302 multiply 9 90   -> 810
   295  mulx303 multiply 9 900   -> 8100
   296  mulx304 multiply 9 9000   -> 81000
   297  mulx305 multiply 9 90000   -> 810000
   298  mulx306 multiply 9 900000   -> 8100000
   299  mulx307 multiply 9 9000000   -> 81000000
   300  mulx308 multiply 9 90000000   -> 810000000
   301  mulx309 multiply 9 900000000   -> 8.10000000E+9   Rounded
   302  mulx310 multiply 9 9000000000   -> 8.10000000E+10  Rounded
   303  mulx311 multiply 9 90000000000   -> 8.10000000E+11  Rounded
   304  mulx312 multiply 9 900000000000   -> 8.10000000E+12  Rounded
   305  mulx313 multiply 9 9000000000000   -> 8.10000000E+13  Rounded
   306  mulx314 multiply 9 90000000000000   -> 8.10000000E+14  Rounded
   307  mulx315 multiply 9 900000000000000   -> 8.10000000E+15  Rounded
   308  mulx316 multiply 9 9000000000000000   -> 8.10000000E+16  Rounded
   309  mulx317 multiply 9 90000000000000000   -> 8.10000000E+17  Rounded
   310  mulx318 multiply 9 900000000000000000   -> 8.10000000E+18  Rounded
   311  mulx319 multiply 9 9000000000000000000   -> 8.10000000E+19  Rounded
   312  mulx320 multiply 9 90000000000000000000   -> 8.10000000E+20  Rounded
   313  mulx321 multiply 9 900000000000000000000   -> 8.10000000E+21  Rounded
   314  mulx322 multiply 9 9000000000000000000000   -> 8.10000000E+22  Rounded
   315  mulx323 multiply 9 90000000000000000000000   -> 8.10000000E+23  Rounded
   316  
   317  -- fastpath breakers
   318  precision:   29
   319  mulx330 multiply 1.491824697641270317824852952837224 1.105170918075647624811707826490246514675628614562883537345747603 -> 1.6487212707001281468486507878 Inexact Rounded
   320  precision:   55
   321  mulx331 multiply 0.8958341352965282506768545828765117803873717284891040428 0.8958341352965282506768545828765117803873717284891040428 -> 0.8025187979624784829842553829934069955890983696752228299 Inexact Rounded
   322  
   323  
   324  -- tryzeros cases
   325  precision:   7
   326  rounding:    half_up
   327  maxExponent: 92
   328  minexponent: -92
   329  mulx504  multiply  0E-60 1000E-60  -> 0E-98 Clamped
   330  mulx505  multiply  100E+60 0E+60   -> 0E+92 Clamped
   331  
   332  -- mixed with zeros
   333  maxexponent: 999999999
   334  minexponent: -999999999
   335  precision: 9
   336  mulx541 multiply  0    -1     -> -0
   337  mulx542 multiply -0    -1     ->  0
   338  mulx543 multiply  0     1     ->  0
   339  mulx544 multiply -0     1     -> -0
   340  mulx545 multiply -1     0     -> -0
   341  mulx546 multiply -1    -0     ->  0
   342  mulx547 multiply  1     0     ->  0
   343  mulx548 multiply  1    -0     -> -0
   344  
   345  mulx551 multiply  0.0  -1     -> -0.0
   346  mulx552 multiply -0.0  -1     ->  0.0
   347  mulx553 multiply  0.0   1     ->  0.0
   348  mulx554 multiply -0.0   1     -> -0.0
   349  mulx555 multiply -1.0   0     -> -0.0
   350  mulx556 multiply -1.0  -0     ->  0.0
   351  mulx557 multiply  1.0   0     ->  0.0
   352  mulx558 multiply  1.0  -0     -> -0.0
   353  
   354  mulx561 multiply  0    -1.0   -> -0.0
   355  mulx562 multiply -0    -1.0   ->  0.0
   356  mulx563 multiply  0     1.0   ->  0.0
   357  mulx564 multiply -0     1.0   -> -0.0
   358  mulx565 multiply -1     0.0   -> -0.0
   359  mulx566 multiply -1    -0.0   ->  0.0
   360  mulx567 multiply  1     0.0   ->  0.0
   361  mulx568 multiply  1    -0.0   -> -0.0
   362  
   363  mulx571 multiply  0.0  -1.0   -> -0.00
   364  mulx572 multiply -0.0  -1.0   ->  0.00
   365  mulx573 multiply  0.0   1.0   ->  0.00
   366  mulx574 multiply -0.0   1.0   -> -0.00
   367  mulx575 multiply -1.0   0.0   -> -0.00
   368  mulx576 multiply -1.0  -0.0   ->  0.00
   369  mulx577 multiply  1.0   0.0   ->  0.00
   370  mulx578 multiply  1.0  -0.0   -> -0.00
   371  
   372  
   373  -- Specials
   374  mulx580 multiply  Inf  -Inf   -> -Infinity
   375  mulx581 multiply  Inf  -1000  -> -Infinity
   376  mulx582 multiply  Inf  -1     -> -Infinity
   377  mulx583 multiply  Inf  -0     ->  NaN  Invalid_operation
   378  mulx584 multiply  Inf   0     ->  NaN  Invalid_operation
   379  mulx585 multiply  Inf   1     ->  Infinity
   380  mulx586 multiply  Inf   1000  ->  Infinity
   381  mulx587 multiply  Inf   Inf   ->  Infinity
   382  mulx588 multiply -1000  Inf   -> -Infinity
   383  mulx589 multiply -Inf   Inf   -> -Infinity
   384  mulx590 multiply -1     Inf   -> -Infinity
   385  mulx591 multiply -0     Inf   ->  NaN  Invalid_operation
   386  mulx592 multiply  0     Inf   ->  NaN  Invalid_operation
   387  mulx593 multiply  1     Inf   ->  Infinity
   388  mulx594 multiply  1000  Inf   ->  Infinity
   389  mulx595 multiply  Inf   Inf   ->  Infinity
   390  
   391  mulx600 multiply -Inf  -Inf   ->  Infinity
   392  mulx601 multiply -Inf  -1000  ->  Infinity
   393  mulx602 multiply -Inf  -1     ->  Infinity
   394  mulx603 multiply -Inf  -0     ->  NaN  Invalid_operation
   395  mulx604 multiply -Inf   0     ->  NaN  Invalid_operation
   396  mulx605 multiply -Inf   1     -> -Infinity
   397  mulx606 multiply -Inf   1000  -> -Infinity
   398  mulx607 multiply -Inf   Inf   -> -Infinity
   399  mulx608 multiply -1000  Inf   -> -Infinity
   400  mulx609 multiply -Inf  -Inf   ->  Infinity
   401  mulx610 multiply -1    -Inf   ->  Infinity
   402  mulx611 multiply -0    -Inf   ->  NaN  Invalid_operation
   403  mulx612 multiply  0    -Inf   ->  NaN  Invalid_operation
   404  mulx613 multiply  1    -Inf   -> -Infinity
   405  mulx614 multiply  1000 -Inf   -> -Infinity
   406  mulx615 multiply  Inf  -Inf   -> -Infinity
   407  
   408  mulx621 multiply  NaN -Inf    ->  NaN
   409  mulx622 multiply  NaN -1000   ->  NaN
   410  mulx623 multiply  NaN -1      ->  NaN
   411  mulx624 multiply  NaN -0      ->  NaN
   412  mulx625 multiply  NaN  0      ->  NaN
   413  mulx626 multiply  NaN  1      ->  NaN
   414  mulx627 multiply  NaN  1000   ->  NaN
   415  mulx628 multiply  NaN  Inf    ->  NaN
   416  mulx629 multiply  NaN  NaN    ->  NaN
   417  mulx630 multiply -Inf  NaN    ->  NaN
   418  mulx631 multiply -1000 NaN    ->  NaN
   419  mulx632 multiply -1    NaN    ->  NaN
   420  mulx633 multiply -0    NaN    ->  NaN
   421  mulx634 multiply  0    NaN    ->  NaN
   422  mulx635 multiply  1    NaN    ->  NaN
   423  mulx636 multiply  1000 NaN    ->  NaN
   424  mulx637 multiply  Inf  NaN    ->  NaN
   425  
   426  mulx641 multiply  sNaN -Inf   ->  NaN  Invalid_operation
   427  mulx642 multiply  sNaN -1000  ->  NaN  Invalid_operation
   428  mulx643 multiply  sNaN -1     ->  NaN  Invalid_operation
   429  mulx644 multiply  sNaN -0     ->  NaN  Invalid_operation
   430  mulx645 multiply  sNaN  0     ->  NaN  Invalid_operation
   431  mulx646 multiply  sNaN  1     ->  NaN  Invalid_operation
   432  mulx647 multiply  sNaN  1000  ->  NaN  Invalid_operation
   433  mulx648 multiply  sNaN  NaN   ->  NaN  Invalid_operation
   434  mulx649 multiply  sNaN sNaN   ->  NaN  Invalid_operation
   435  mulx650 multiply  NaN  sNaN   ->  NaN  Invalid_operation
   436  mulx651 multiply -Inf  sNaN   ->  NaN  Invalid_operation
   437  mulx652 multiply -1000 sNaN   ->  NaN  Invalid_operation
   438  mulx653 multiply -1    sNaN   ->  NaN  Invalid_operation
   439  mulx654 multiply -0    sNaN   ->  NaN  Invalid_operation
   440  mulx655 multiply  0    sNaN   ->  NaN  Invalid_operation
   441  mulx656 multiply  1    sNaN   ->  NaN  Invalid_operation
   442  mulx657 multiply  1000 sNaN   ->  NaN  Invalid_operation
   443  mulx658 multiply  Inf  sNaN   ->  NaN  Invalid_operation
   444  mulx659 multiply  NaN  sNaN   ->  NaN  Invalid_operation
   445  
   446  -- propagating NaNs
   447  mulx661 multiply  NaN9 -Inf   ->  NaN9
   448  mulx662 multiply  NaN8  999   ->  NaN8
   449  mulx663 multiply  NaN71 Inf   ->  NaN71
   450  mulx664 multiply  NaN6  NaN5  ->  NaN6
   451  mulx665 multiply -Inf   NaN4  ->  NaN4
   452  mulx666 multiply -999   NaN33 ->  NaN33
   453  mulx667 multiply  Inf   NaN2  ->  NaN2
   454  
   455  mulx671 multiply  sNaN99 -Inf    ->  NaN99 Invalid_operation
   456  mulx672 multiply  sNaN98 -11     ->  NaN98 Invalid_operation
   457  mulx673 multiply  sNaN97  NaN    ->  NaN97 Invalid_operation
   458  mulx674 multiply  sNaN16 sNaN94  ->  NaN16 Invalid_operation
   459  mulx675 multiply  NaN95  sNaN93  ->  NaN93 Invalid_operation
   460  mulx676 multiply -Inf    sNaN92  ->  NaN92 Invalid_operation
   461  mulx677 multiply  088    sNaN91  ->  NaN91 Invalid_operation
   462  mulx678 multiply  Inf    sNaN90  ->  NaN90 Invalid_operation
   463  mulx679 multiply  NaN    sNaN89  ->  NaN89 Invalid_operation
   464  
   465  mulx681 multiply -NaN9 -Inf   -> -NaN9
   466  mulx682 multiply -NaN8  999   -> -NaN8
   467  mulx683 multiply -NaN71 Inf   -> -NaN71
   468  mulx684 multiply -NaN6 -NaN5  -> -NaN6
   469  mulx685 multiply -Inf  -NaN4  -> -NaN4
   470  mulx686 multiply -999  -NaN33 -> -NaN33
   471  mulx687 multiply  Inf  -NaN2  -> -NaN2
   472  
   473  mulx691 multiply -sNaN99 -Inf    -> -NaN99 Invalid_operation
   474  mulx692 multiply -sNaN98 -11     -> -NaN98 Invalid_operation
   475  mulx693 multiply -sNaN97  NaN    -> -NaN97 Invalid_operation
   476  mulx694 multiply -sNaN16 -sNaN94 -> -NaN16 Invalid_operation
   477  mulx695 multiply -NaN95  -sNaN93 -> -NaN93 Invalid_operation
   478  mulx696 multiply -Inf    -sNaN92 -> -NaN92 Invalid_operation
   479  mulx697 multiply  088    -sNaN91 -> -NaN91 Invalid_operation
   480  mulx698 multiply  Inf    -sNaN90 -> -NaN90 Invalid_operation
   481  mulx699 multiply -NaN    -sNaN89 -> -NaN89 Invalid_operation
   482  
   483  mulx701 multiply -NaN  -Inf   -> -NaN
   484  mulx702 multiply -NaN   999   -> -NaN
   485  mulx703 multiply -NaN   Inf   -> -NaN
   486  mulx704 multiply -NaN  -NaN   -> -NaN
   487  mulx705 multiply -Inf  -NaN0  -> -NaN
   488  mulx706 multiply -999  -NaN   -> -NaN
   489  mulx707 multiply  Inf  -NaN   -> -NaN
   490  
   491  mulx711 multiply -sNaN   -Inf    -> -NaN Invalid_operation
   492  mulx712 multiply -sNaN   -11     -> -NaN Invalid_operation
   493  mulx713 multiply -sNaN00  NaN    -> -NaN Invalid_operation
   494  mulx714 multiply -sNaN   -sNaN   -> -NaN Invalid_operation
   495  mulx715 multiply -NaN    -sNaN   -> -NaN Invalid_operation
   496  mulx716 multiply -Inf    -sNaN   -> -NaN Invalid_operation
   497  mulx717 multiply  088    -sNaN   -> -NaN Invalid_operation
   498  mulx718 multiply  Inf    -sNaN   -> -NaN Invalid_operation
   499  mulx719 multiply -NaN    -sNaN   -> -NaN Invalid_operation
   500  
   501  -- overflow and underflow tests .. note subnormal results
   502  maxexponent: 999999999
   503  minexponent: -999999999
   504  mulx730 multiply +1.23456789012345E-0 9E+999999999 -> Infinity Inexact Overflow Rounded
   505  mulx731 multiply 9E+999999999 +1.23456789012345E-0 -> Infinity Inexact Overflow Rounded
   506  mulx732 multiply +0.100 9E-999999999 -> 9.00E-1000000000 Subnormal
   507  mulx733 multiply 9E-999999999 +0.100 -> 9.00E-1000000000 Subnormal
   508  mulx735 multiply -1.23456789012345E-0 9E+999999999 -> -Infinity Inexact Overflow Rounded
   509  mulx736 multiply 9E+999999999 -1.23456789012345E-0 -> -Infinity Inexact Overflow Rounded
   510  mulx737 multiply -0.100 9E-999999999 -> -9.00E-1000000000 Subnormal
   511  mulx738 multiply 9E-999999999 -0.100 -> -9.00E-1000000000 Subnormal
   512  
   513  mulx739 multiply 1e-599999999 1e-400000001 -> 1E-1000000000 Subnormal
   514  mulx740 multiply 1e-599999999 1e-400000000 -> 1E-999999999
   515  mulx741 multiply 1e-600000000 1e-400000000 -> 1E-1000000000 Subnormal
   516  mulx742 multiply 9e-999999998 0.01 -> 9E-1000000000 Subnormal
   517  mulx743 multiply 9e-999999998 0.1  -> 9E-999999999
   518  mulx744 multiply 0.01 9e-999999998 -> 9E-1000000000 Subnormal
   519  mulx745 multiply 1e599999999 1e400000001 -> Infinity Overflow Inexact Rounded
   520  mulx746 multiply 1e599999999 1e400000000 -> 1E+999999999
   521  mulx747 multiply 1e600000000 1e400000000 -> Infinity Overflow Inexact Rounded
   522  mulx748 multiply 9e999999998 100  -> Infinity Overflow Inexact Rounded
   523  mulx749 multiply 9e999999998 10   -> 9.0E+999999999
   524  mulx750 multiply 100  9e999999998 -> Infinity Overflow Inexact Rounded
   525  -- signs
   526  mulx751 multiply  1e+777777777  1e+411111111 ->  Infinity Overflow Inexact Rounded
   527  mulx752 multiply  1e+777777777 -1e+411111111 -> -Infinity Overflow Inexact Rounded
   528  mulx753 multiply -1e+777777777  1e+411111111 -> -Infinity Overflow Inexact Rounded
   529  mulx754 multiply -1e+777777777 -1e+411111111 ->  Infinity Overflow Inexact Rounded
   530  mulx755 multiply  1e-777777777  1e-411111111 ->  0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   531  mulx756 multiply  1e-777777777 -1e-411111111 -> -0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   532  mulx757 multiply -1e-777777777  1e-411111111 -> -0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   533  mulx758 multiply -1e-777777777 -1e-411111111 ->  0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   534  
   535  -- 'subnormal' boundary (all hard underflow or overflow in base arithemtic)
   536  precision: 9
   537  mulx760 multiply 1e-600000000 1e-400000001 -> 1E-1000000001 Subnormal
   538  mulx761 multiply 1e-600000000 1e-400000002 -> 1E-1000000002 Subnormal
   539  mulx762 multiply 1e-600000000 1e-400000003 -> 1E-1000000003 Subnormal
   540  mulx763 multiply 1e-600000000 1e-400000004 -> 1E-1000000004 Subnormal
   541  mulx764 multiply 1e-600000000 1e-400000005 -> 1E-1000000005 Subnormal
   542  mulx765 multiply 1e-600000000 1e-400000006 -> 1E-1000000006 Subnormal
   543  mulx766 multiply 1e-600000000 1e-400000007 -> 1E-1000000007 Subnormal
   544  mulx767 multiply 1e-600000000 1e-400000008 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   545  mulx768 multiply 1e-600000000 1e-400000009 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   546  mulx769 multiply 1e-600000000 1e-400000010 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
   547  -- [no equivalent of 'subnormal' for overflow]
   548  mulx770 multiply 1e+600000000 1e+400000001 -> Infinity Overflow Inexact Rounded
   549  mulx771 multiply 1e+600000000 1e+400000002 -> Infinity Overflow Inexact Rounded
   550  mulx772 multiply 1e+600000000 1e+400000003 -> Infinity Overflow Inexact Rounded
   551  mulx773 multiply 1e+600000000 1e+400000004 -> Infinity Overflow Inexact Rounded
   552  mulx774 multiply 1e+600000000 1e+400000005 -> Infinity Overflow Inexact Rounded
   553  mulx775 multiply 1e+600000000 1e+400000006 -> Infinity Overflow Inexact Rounded
   554  mulx776 multiply 1e+600000000 1e+400000007 -> Infinity Overflow Inexact Rounded
   555  mulx777 multiply 1e+600000000 1e+400000008 -> Infinity Overflow Inexact Rounded
   556  mulx778 multiply 1e+600000000 1e+400000009 -> Infinity Overflow Inexact Rounded
   557  mulx779 multiply 1e+600000000 1e+400000010 -> Infinity Overflow Inexact Rounded
   558  
   559  -- 'subnormal' test edge condition at higher precisions
   560  precision: 99
   561  mulx780 multiply 1e-600000000 1e-400000007 -> 1E-1000000007 Subnormal
   562  mulx781 multiply 1e-600000000 1e-400000008 -> 1E-1000000008 Subnormal
   563  mulx782 multiply 1e-600000000 1e-400000097 -> 1E-1000000097 Subnormal
   564  mulx783 multiply 1e-600000000 1e-400000098 -> 0E-1000000097 Underflow Subnormal Inexact Rounded Clamped
   565  precision: 999
   566  mulx784 multiply 1e-600000000 1e-400000997 -> 1E-1000000997 Subnormal
   567  mulx785 multiply 1e-600000000 1e-400000998 -> 0E-1000000997 Underflow Subnormal Inexact Rounded Clamped
   568  
   569  -- following testcases [through mulx800] not yet run against code
   570  precision: 9999
   571  mulx786 multiply 1e-600000000 1e-400009997 -> 1E-1000009997 Subnormal
   572  mulx787 multiply 1e-600000000 1e-400009998 -> 0E-1000009997 Underflow Subnormal Inexact Rounded Clamped
   573  precision: 99999
   574  mulx788 multiply 1e-600000000 1e-400099997 -> 1E-1000099997 Subnormal
   575  mulx789 multiply 1e-600000000 1e-400099998 -> 0E-1000099997 Underflow Subnormal Inexact Rounded Clamped
   576  precision: 999999
   577  mulx790 multiply 1e-600000000 1e-400999997 -> 1E-1000999997 Subnormal
   578  mulx791 multiply 1e-600000000 1e-400999998 -> 0E-1000999997 Underflow Subnormal Inexact Rounded Clamped
   579  precision: 9999999
   580  mulx792 multiply 1e-600000000 1e-409999997 -> 1E-1009999997 Subnormal
   581  mulx793 multiply 1e-600000000 1e-409999998 -> 0E-1009999997 Underflow Subnormal Inexact Rounded Clamped
   582  precision: 99999999
   583  mulx794 multiply 1e-600000000 1e-499999997 -> 1E-1099999997 Subnormal
   584  mulx795 multiply 1e-600000000 1e-499999998 -> 0E-1099999997 Underflow Subnormal Inexact Rounded Clamped
   585  precision: 999999999
   586  mulx796 multiply 1e-999999999 1e-999999997 -> 1E-1999999996 Subnormal
   587  mulx797 multiply 1e-999999999 1e-999999998 -> 1E-1999999997 Subnormal
   588  mulx798 multiply 1e-999999999 1e-999999999 -> 0E-1999999997 Underflow Subnormal Inexact Rounded Clamped
   589  mulx799 multiply 1e-600000000 1e-400000007 -> 1E-1000000007 Subnormal
   590  mulx800 multiply 1e-600000000 1e-400000008 -> 1E-1000000008 Subnormal
   591  
   592  -- test subnormals rounding
   593  precision:   5
   594  maxExponent: 999
   595  minexponent: -999
   596  rounding:    half_even
   597  
   598  mulx801 multiply  1.0000E-999  1     -> 1.0000E-999
   599  mulx802 multiply  1.000E-999   1e-1  -> 1.000E-1000 Subnormal
   600  mulx803 multiply  1.00E-999    1e-2  -> 1.00E-1001  Subnormal
   601  mulx804 multiply  1.0E-999     1e-3  -> 1.0E-1002   Subnormal
   602  mulx805 multiply  1.0E-999     1e-4  -> 1E-1003     Subnormal Rounded
   603  mulx806 multiply  1.3E-999     1e-4  -> 1E-1003     Underflow Subnormal Inexact Rounded
   604  mulx807 multiply  1.5E-999     1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   605  mulx808 multiply  1.7E-999     1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   606  mulx809 multiply  2.3E-999     1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   607  mulx810 multiply  2.5E-999     1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   608  mulx811 multiply  2.7E-999     1e-4  -> 3E-1003     Underflow Subnormal Inexact Rounded
   609  mulx812 multiply  1.49E-999    1e-4  -> 1E-1003     Underflow Subnormal Inexact Rounded
   610  mulx813 multiply  1.50E-999    1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   611  mulx814 multiply  1.51E-999    1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   612  mulx815 multiply  2.49E-999    1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   613  mulx816 multiply  2.50E-999    1e-4  -> 2E-1003     Underflow Subnormal Inexact Rounded
   614  mulx817 multiply  2.51E-999    1e-4  -> 3E-1003     Underflow Subnormal Inexact Rounded
   615  
   616  mulx818 multiply  1E-999       1e-4  -> 1E-1003     Subnormal
   617  mulx819 multiply  3E-999       1e-5  -> 0E-1003     Underflow Subnormal Inexact Rounded Clamped
   618  mulx820 multiply  5E-999       1e-5  -> 0E-1003     Underflow Subnormal Inexact Rounded Clamped
   619  mulx821 multiply  7E-999       1e-5  -> 1E-1003     Underflow Subnormal Inexact Rounded
   620  mulx822 multiply  9E-999       1e-5  -> 1E-1003     Underflow Subnormal Inexact Rounded
   621  mulx823 multiply  9.9E-999     1e-5  -> 1E-1003     Underflow Subnormal Inexact Rounded
   622  
   623  mulx824 multiply  1E-999      -1e-4  -> -1E-1003    Subnormal
   624  mulx825 multiply  3E-999      -1e-5  -> -0E-1003    Underflow Subnormal Inexact Rounded Clamped
   625  mulx826 multiply -5E-999       1e-5  -> -0E-1003    Underflow Subnormal Inexact Rounded Clamped
   626  mulx827 multiply  7E-999      -1e-5  -> -1E-1003    Underflow Subnormal Inexact Rounded
   627  mulx828 multiply -9E-999       1e-5  -> -1E-1003    Underflow Subnormal Inexact Rounded
   628  mulx829 multiply  9.9E-999    -1e-5  -> -1E-1003    Underflow Subnormal Inexact Rounded
   629  mulx830 multiply  3.0E-999    -1e-5  -> -0E-1003    Underflow Subnormal Inexact Rounded Clamped
   630  
   631  mulx831 multiply  1.0E-501     1e-501 -> 1.0E-1002   Subnormal
   632  mulx832 multiply  2.0E-501     2e-501 -> 4.0E-1002   Subnormal
   633  mulx833 multiply  4.0E-501     4e-501 -> 1.60E-1001  Subnormal
   634  mulx834 multiply 10.0E-501    10e-501 -> 1.000E-1000 Subnormal
   635  mulx835 multiply 30.0E-501    30e-501 -> 9.000E-1000 Subnormal
   636  mulx836 multiply 40.0E-501    40e-501 -> 1.6000E-999
   637  
   638  -- squares
   639  mulx840 multiply  1E-502       1e-502 -> 0E-1003     Underflow Subnormal Inexact Rounded Clamped
   640  mulx841 multiply  1E-501       1e-501 -> 1E-1002     Subnormal
   641  mulx842 multiply  2E-501       2e-501 -> 4E-1002     Subnormal
   642  mulx843 multiply  4E-501       4e-501 -> 1.6E-1001   Subnormal
   643  mulx844 multiply 10E-501      10e-501 -> 1.00E-1000  Subnormal
   644  mulx845 multiply 30E-501      30e-501 -> 9.00E-1000  Subnormal
   645  mulx846 multiply 40E-501      40e-501 -> 1.600E-999
   646  
   647  -- cubes
   648  mulx850 multiply  1E-670     1e-335 -> 0E-1003    Underflow Subnormal Inexact Rounded Clamped
   649  mulx851 multiply  1E-668     1e-334 -> 1E-1002    Subnormal
   650  mulx852 multiply  4E-668     2e-334 -> 8E-1002    Subnormal
   651  mulx853 multiply  9E-668     3e-334 -> 2.7E-1001  Subnormal
   652  mulx854 multiply 16E-668     4e-334 -> 6.4E-1001  Subnormal
   653  mulx855 multiply 25E-668     5e-334 -> 1.25E-1000 Subnormal
   654  mulx856 multiply 10E-668   100e-334 -> 1.000E-999
   655  
   656  -- test derived from result of 0.099 ** 999 at 15 digits with unlimited exponent
   657  precision: 19
   658  mulx860 multiply  6636851557994578716E-520 6636851557994578716E-520 -> 4.40477986028551E-1003 Underflow Subnormal Inexact Rounded
   659  
   660  -- Long operand overflow may be a different path
   661  precision: 3
   662  maxExponent: 999999999
   663  minexponent: -999999999
   664  mulx870 multiply 1  9.999E+999999999   ->  Infinity Inexact Overflow Rounded
   665  mulx871 multiply 1 -9.999E+999999999   -> -Infinity Inexact Overflow Rounded
   666  mulx872 multiply    9.999E+999999999 1 ->  Infinity Inexact Overflow Rounded
   667  mulx873 multiply   -9.999E+999999999 1 -> -Infinity Inexact Overflow Rounded
   668  
   669  -- check for double-rounded subnormals
   670  precision:   5
   671  maxexponent: 79
   672  minexponent: -79
   673  mulx881 multiply  1.2347E-40  1.2347E-40  ->  1.524E-80  Inexact Rounded Subnormal Underflow
   674  mulx882 multiply  1.234E-40  1.234E-40    ->  1.523E-80  Inexact Rounded Subnormal Underflow
   675  mulx883 multiply  1.23E-40   1.23E-40     ->  1.513E-80  Inexact Rounded Subnormal Underflow
   676  mulx884 multiply  1.2E-40    1.2E-40      ->  1.44E-80   Subnormal
   677  mulx885 multiply  1.2E-40    1.2E-41      ->  1.44E-81   Subnormal
   678  mulx886 multiply  1.2E-40    1.2E-42      ->  1.4E-82    Subnormal Inexact Rounded Underflow
   679  mulx887 multiply  1.2E-40    1.3E-42      ->  1.6E-82    Subnormal Inexact Rounded Underflow
   680  mulx888 multiply  1.3E-40    1.3E-42      ->  1.7E-82    Subnormal Inexact Rounded Underflow
   681  mulx889 multiply  1.3E-40    1.3E-43      ->    2E-83    Subnormal Inexact Rounded Underflow
   682  mulx890 multiply  1.3E-41    1.3E-43      ->    0E-83    Clamped Subnormal Inexact Rounded Underflow
   683  
   684  mulx891 multiply  1.2345E-39   1.234E-40  ->  1.5234E-79 Inexact Rounded
   685  mulx892 multiply  1.23456E-39  1.234E-40  ->  1.5234E-79 Inexact Rounded
   686  mulx893 multiply  1.2345E-40   1.234E-40  ->  1.523E-80  Inexact Rounded Subnormal Underflow
   687  mulx894 multiply  1.23456E-40  1.234E-40  ->  1.523E-80  Inexact Rounded Subnormal Underflow
   688  mulx895 multiply  1.2345E-41   1.234E-40  ->  1.52E-81   Inexact Rounded Subnormal Underflow
   689  mulx896 multiply  1.23456E-41  1.234E-40  ->  1.52E-81   Inexact Rounded Subnormal Underflow
   690  
   691  -- Now explore the case where we get a normal result with Underflow
   692  precision:   16
   693  rounding:    half_up
   694  maxExponent: 384
   695  minExponent: -383
   696  
   697  mulx900 multiply  0.3000000000E-191 0.3000000000E-191 -> 9.00000000000000E-384 Subnormal Rounded
   698  mulx901 multiply  0.3000000001E-191 0.3000000001E-191 -> 9.00000000600000E-384 Underflow Inexact Subnormal Rounded
   699  mulx902 multiply  9.999999999999999E-383  0.0999999999999         -> 9.99999999999000E-384 Underflow Inexact Subnormal Rounded
   700  mulx903 multiply  9.999999999999999E-383  0.09999999999999        -> 9.99999999999900E-384 Underflow Inexact Subnormal Rounded
   701  mulx904 multiply  9.999999999999999E-383  0.099999999999999       -> 9.99999999999990E-384 Underflow Inexact Subnormal Rounded
   702  mulx905 multiply  9.999999999999999E-383  0.0999999999999999      -> 9.99999999999999E-384 Underflow Inexact Subnormal Rounded
   703  -- prove operands are exact
   704  mulx906 multiply  9.999999999999999E-383  1                       -> 9.999999999999999E-383
   705  mulx907 multiply                       1  0.09999999999999999     -> 0.09999999999999999
   706  -- the next rounds to Nmin
   707  mulx908 multiply  9.999999999999999E-383  0.09999999999999999     -> 1.000000000000000E-383 Underflow Inexact Subnormal Rounded
   708  mulx909 multiply  9.999999999999999E-383  0.099999999999999999    -> 1.000000000000000E-383 Underflow Inexact Subnormal Rounded
   709  mulx910 multiply  9.999999999999999E-383  0.0999999999999999999   -> 1.000000000000000E-383 Underflow Inexact Subnormal Rounded
   710  mulx911 multiply  9.999999999999999E-383  0.09999999999999999999  -> 1.000000000000000E-383 Underflow Inexact Subnormal Rounded
   711  
   712  
   713  -- Examples from SQL proposal (Krishna Kulkarni)
   714  precision:   34
   715  rounding:    half_up
   716  maxExponent: 6144
   717  minExponent: -6143
   718  mulx1001  multiply 130E-2  120E-2 -> 1.5600
   719  mulx1002  multiply 130E-2  12E-1  -> 1.560
   720  mulx1003  multiply 130E-2  1E0    -> 1.30
   721  mulx1004  multiply 1E2     1E4    -> 1E+6
   722  
   723  -- payload decapitate
   724  precision: 5
   725  mulx1010  multiply 11 -sNaN1234567890 -> -NaN67890  Invalid_operation
   726  
   727  -- Null tests
   728  mulx990 multiply 10  # -> NaN Invalid_operation
   729  mulx991 multiply  # 10 -> NaN Invalid_operation
   730