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      1 ------------------------------------------------------------------------
      2 -- maxmag.decTest -- decimal maximum by magnitude                     --
      3 -- Copyright (c) IBM Corporation, 1981, 2008.  All rights reserved.   --
      4 ------------------------------------------------------------------------
      5 -- Please see the document "General Decimal Arithmetic Testcases"     --
      6 -- at http://www2.hursley.ibm.com/decimal for the description of      --
      7 -- these testcases.                                                   --
      8 --                                                                    --
      9 -- These testcases are experimental ('beta' versions), and they       --
     10 -- may contain errors.  They are offered on an as-is basis.  In       --
     11 -- particular, achieving the same results as the tests here is not    --
     12 -- a guarantee that an implementation complies with any Standard      --
     13 -- or specification.  The tests are not exhaustive.                   --
     14 --                                                                    --
     15 -- Please send comments, suggestions, and corrections to the author:  --
     16 --   Mike Cowlishaw, IBM Fellow                                       --
     17 --   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
     18 --   mfc (a] uk.ibm.com                                                   --
     19 ------------------------------------------------------------------------
     20 version: 2.59
     21 
     22 -- we assume that base comparison is tested in compare.decTest, so
     23 -- these mainly cover special cases and rounding
     24 
     25 extended:    1
     26 precision:   9
     27 rounding:    half_up
     28 maxExponent: 384
     29 minexponent: -383
     30 
     31 -- sanity checks
     32 mxgx001 maxmag  -2  -2  -> -2
     33 mxgx002 maxmag  -2  -1  -> -2
     34 mxgx003 maxmag  -2   0  -> -2
     35 mxgx004 maxmag  -2   1  -> -2
     36 mxgx005 maxmag  -2   2  ->  2
     37 mxgx006 maxmag  -1  -2  -> -2
     38 mxgx007 maxmag  -1  -1  -> -1
     39 mxgx008 maxmag  -1   0  -> -1
     40 mxgx009 maxmag  -1   1  ->  1
     41 mxgx010 maxmag  -1   2  ->  2
     42 mxgx011 maxmag   0  -2  -> -2
     43 mxgx012 maxmag   0  -1  -> -1
     44 mxgx013 maxmag   0   0  ->  0
     45 mxgx014 maxmag   0   1  ->  1
     46 mxgx015 maxmag   0   2  ->  2
     47 mxgx016 maxmag   1  -2  -> -2
     48 mxgx017 maxmag   1  -1  ->  1
     49 mxgx018 maxmag   1   0  ->  1
     50 mxgx019 maxmag   1   1  ->  1
     51 mxgx020 maxmag   1   2  ->  2
     52 mxgx021 maxmag   2  -2  ->  2
     53 mxgx022 maxmag   2  -1  ->  2
     54 mxgx023 maxmag   2   0  ->  2
     55 mxgx025 maxmag   2   1  ->  2
     56 mxgx026 maxmag   2   2  ->  2
     57 
     58 -- extended zeros
     59 mxgx030 maxmag   0     0   ->  0
     60 mxgx031 maxmag   0    -0   ->  0
     61 mxgx032 maxmag   0    -0.0 ->  0
     62 mxgx033 maxmag   0     0.0 ->  0
     63 mxgx034 maxmag  -0     0   ->  0    -- note: -0 = 0, but 0 chosen
     64 mxgx035 maxmag  -0    -0   -> -0
     65 mxgx036 maxmag  -0    -0.0 -> -0.0
     66 mxgx037 maxmag  -0     0.0 ->  0.0
     67 mxgx038 maxmag   0.0   0   ->  0
     68 mxgx039 maxmag   0.0  -0   ->  0.0
     69 mxgx040 maxmag   0.0  -0.0 ->  0.0
     70 mxgx041 maxmag   0.0   0.0 ->  0.0
     71 mxgx042 maxmag  -0.0   0   ->  0
     72 mxgx043 maxmag  -0.0  -0   -> -0.0
     73 mxgx044 maxmag  -0.0  -0.0 -> -0.0
     74 mxgx045 maxmag  -0.0   0.0 ->  0.0
     75 
     76 mxgx050 maxmag  -0E1   0E1 ->  0E+1
     77 mxgx051 maxmag  -0E2   0E2 ->  0E+2
     78 mxgx052 maxmag  -0E2   0E1 ->  0E+1
     79 mxgx053 maxmag  -0E1   0E2 ->  0E+2
     80 mxgx054 maxmag   0E1  -0E1 ->  0E+1
     81 mxgx055 maxmag   0E2  -0E2 ->  0E+2
     82 mxgx056 maxmag   0E2  -0E1 ->  0E+2
     83 mxgx057 maxmag   0E1  -0E2 ->  0E+1
     84 
     85 mxgx058 maxmag   0E1   0E1 ->  0E+1
     86 mxgx059 maxmag   0E2   0E2 ->  0E+2
     87 mxgx060 maxmag   0E2   0E1 ->  0E+2
     88 mxgx061 maxmag   0E1   0E2 ->  0E+2
     89 mxgx062 maxmag  -0E1  -0E1 -> -0E+1
     90 mxgx063 maxmag  -0E2  -0E2 -> -0E+2
     91 mxgx064 maxmag  -0E2  -0E1 -> -0E+1
     92 mxgx065 maxmag  -0E1  -0E2 -> -0E+1
     93 
     94 -- Specials
     95 precision: 9
     96 mxgx090 maxmag  Inf  -Inf   ->  Infinity
     97 mxgx091 maxmag  Inf  -1000  ->  Infinity
     98 mxgx092 maxmag  Inf  -1     ->  Infinity
     99 mxgx093 maxmag  Inf  -0     ->  Infinity
    100 mxgx094 maxmag  Inf   0     ->  Infinity
    101 mxgx095 maxmag  Inf   1     ->  Infinity
    102 mxgx096 maxmag  Inf   1000  ->  Infinity
    103 mxgx097 maxmag  Inf   Inf   ->  Infinity
    104 mxgx098 maxmag -1000  Inf   ->  Infinity
    105 mxgx099 maxmag -Inf   Inf   ->  Infinity
    106 mxgx100 maxmag -1     Inf   ->  Infinity
    107 mxgx101 maxmag -0     Inf   ->  Infinity
    108 mxgx102 maxmag  0     Inf   ->  Infinity
    109 mxgx103 maxmag  1     Inf   ->  Infinity
    110 mxgx104 maxmag  1000  Inf   ->  Infinity
    111 mxgx105 maxmag  Inf   Inf   ->  Infinity
    112 
    113 mxgx120 maxmag -Inf  -Inf   -> -Infinity
    114 mxgx121 maxmag -Inf  -1000  -> -Infinity
    115 mxgx122 maxmag -Inf  -1     -> -Infinity
    116 mxgx123 maxmag -Inf  -0     -> -Infinity
    117 mxgx124 maxmag -Inf   0     -> -Infinity
    118 mxgx125 maxmag -Inf   1     -> -Infinity
    119 mxgx126 maxmag -Inf   1000  -> -Infinity
    120 mxgx127 maxmag -Inf   Inf   ->  Infinity
    121 mxgx128 maxmag -Inf  -Inf   -> -Infinity
    122 mxgx129 maxmag -1000 -Inf   -> -Infinity
    123 mxgx130 maxmag -1    -Inf   -> -Infinity
    124 mxgx131 maxmag -0    -Inf   -> -Infinity
    125 mxgx132 maxmag  0    -Inf   -> -Infinity
    126 mxgx133 maxmag  1    -Inf   -> -Infinity
    127 mxgx134 maxmag  1000 -Inf   -> -Infinity
    128 mxgx135 maxmag  Inf  -Inf   ->  Infinity
    129 
    130 -- 2004.08.02 754r chooses number over NaN in mixed cases
    131 mxgx141 maxmag  NaN -Inf    -> -Infinity
    132 mxgx142 maxmag  NaN -1000   -> -1000
    133 mxgx143 maxmag  NaN -1      -> -1
    134 mxgx144 maxmag  NaN -0      -> -0
    135 mxgx145 maxmag  NaN  0      ->  0
    136 mxgx146 maxmag  NaN  1      ->  1
    137 mxgx147 maxmag  NaN  1000   ->  1000
    138 mxgx148 maxmag  NaN  Inf    ->  Infinity
    139 mxgx149 maxmag  NaN  NaN    ->  NaN
    140 mxgx150 maxmag -Inf  NaN    -> -Infinity
    141 mxgx151 maxmag -1000 NaN    -> -1000
    142 mxgx152 maxmag -1    NaN    -> -1
    143 mxgx153 maxmag -0    NaN    -> -0
    144 mxgx154 maxmag  0    NaN    ->  0
    145 mxgx155 maxmag  1    NaN    ->  1
    146 mxgx156 maxmag  1000 NaN    ->  1000
    147 mxgx157 maxmag  Inf  NaN    ->  Infinity
    148 
    149 mxgx161 maxmag  sNaN -Inf   ->  NaN  Invalid_operation
    150 mxgx162 maxmag  sNaN -1000  ->  NaN  Invalid_operation
    151 mxgx163 maxmag  sNaN -1     ->  NaN  Invalid_operation
    152 mxgx164 maxmag  sNaN -0     ->  NaN  Invalid_operation
    153 mxgx165 maxmag  sNaN  0     ->  NaN  Invalid_operation
    154 mxgx166 maxmag  sNaN  1     ->  NaN  Invalid_operation
    155 mxgx167 maxmag  sNaN  1000  ->  NaN  Invalid_operation
    156 mxgx168 maxmag  sNaN  NaN   ->  NaN  Invalid_operation
    157 mxgx169 maxmag  sNaN sNaN   ->  NaN  Invalid_operation
    158 mxgx170 maxmag  NaN  sNaN   ->  NaN  Invalid_operation
    159 mxgx171 maxmag -Inf  sNaN   ->  NaN  Invalid_operation
    160 mxgx172 maxmag -1000 sNaN   ->  NaN  Invalid_operation
    161 mxgx173 maxmag -1    sNaN   ->  NaN  Invalid_operation
    162 mxgx174 maxmag -0    sNaN   ->  NaN  Invalid_operation
    163 mxgx175 maxmag  0    sNaN   ->  NaN  Invalid_operation
    164 mxgx176 maxmag  1    sNaN   ->  NaN  Invalid_operation
    165 mxgx177 maxmag  1000 sNaN   ->  NaN  Invalid_operation
    166 mxgx178 maxmag  Inf  sNaN   ->  NaN  Invalid_operation
    167 mxgx179 maxmag  NaN  sNaN   ->  NaN  Invalid_operation
    168 
    169 -- propagating NaNs
    170 mxgx181 maxmag  NaN9  -Inf   -> -Infinity
    171 mxgx182 maxmag  NaN8     9   ->  9
    172 mxgx183 maxmag -NaN7   Inf   ->  Infinity
    173 
    174 mxgx184 maxmag -NaN1   NaN11 -> -NaN1
    175 mxgx185 maxmag  NaN2   NaN12 ->  NaN2
    176 mxgx186 maxmag -NaN13 -NaN7  -> -NaN13
    177 mxgx187 maxmag  NaN14 -NaN5  ->  NaN14
    178 
    179 mxgx188 maxmag -Inf    NaN4  -> -Infinity
    180 mxgx189 maxmag -9     -NaN3  -> -9
    181 mxgx190 maxmag  Inf    NaN2  ->  Infinity
    182 
    183 mxgx191 maxmag  sNaN99 -Inf    ->  NaN99 Invalid_operation
    184 mxgx192 maxmag  sNaN98 -1      ->  NaN98 Invalid_operation
    185 mxgx193 maxmag -sNaN97  NaN    -> -NaN97 Invalid_operation
    186 mxgx194 maxmag  sNaN96 sNaN94  ->  NaN96 Invalid_operation
    187 mxgx195 maxmag  NaN95  sNaN93  ->  NaN93 Invalid_operation
    188 mxgx196 maxmag -Inf    sNaN92  ->  NaN92 Invalid_operation
    189 mxgx197 maxmag  0      sNaN91  ->  NaN91 Invalid_operation
    190 mxgx198 maxmag  Inf   -sNaN90  -> -NaN90 Invalid_operation
    191 mxgx199 maxmag  NaN    sNaN89  ->  NaN89 Invalid_operation
    192 
    193 -- rounding checks
    194 maxexponent: 999
    195 minexponent: -999
    196 precision: 9
    197 mxgx201 maxmag 12345678000 1  -> 1.23456780E+10 Rounded
    198 mxgx202 maxmag 1 12345678000  -> 1.23456780E+10 Rounded
    199 mxgx203 maxmag 1234567800  1  -> 1.23456780E+9 Rounded
    200 mxgx204 maxmag 1 1234567800   -> 1.23456780E+9 Rounded
    201 mxgx205 maxmag 1234567890  1  -> 1.23456789E+9 Rounded
    202 mxgx206 maxmag 1 1234567890   -> 1.23456789E+9 Rounded
    203 mxgx207 maxmag 1234567891  1  -> 1.23456789E+9 Inexact Rounded
    204 mxgx208 maxmag 1 1234567891   -> 1.23456789E+9 Inexact Rounded
    205 mxgx209 maxmag 12345678901 1  -> 1.23456789E+10 Inexact Rounded
    206 mxgx210 maxmag 1 12345678901  -> 1.23456789E+10 Inexact Rounded
    207 mxgx211 maxmag 1234567896  1  -> 1.23456790E+9 Inexact Rounded
    208 mxgx212 maxmag 1 1234567896   -> 1.23456790E+9 Inexact Rounded
    209 mxgx213 maxmag -1234567891  1 -> -1.23456789E+9   Inexact Rounded
    210 mxgx214 maxmag 1 -1234567891  -> -1.23456789E+9   Inexact Rounded
    211 mxgx215 maxmag -12345678901 1 -> -1.23456789E+10  Inexact Rounded
    212 mxgx216 maxmag 1 -12345678901 -> -1.23456789E+10  Inexact Rounded
    213 mxgx217 maxmag -1234567896  1 -> -1.23456790E+9   Inexact Rounded
    214 mxgx218 maxmag 1 -1234567896  -> -1.23456790E+9   Inexact Rounded
    215 
    216 precision: 15
    217 mxgx221 maxmag 12345678000 1  -> 12345678000
    218 mxgx222 maxmag 1 12345678000  -> 12345678000
    219 mxgx223 maxmag 1234567800  1  -> 1234567800
    220 mxgx224 maxmag 1 1234567800   -> 1234567800
    221 mxgx225 maxmag 1234567890  1  -> 1234567890
    222 mxgx226 maxmag 1 1234567890   -> 1234567890
    223 mxgx227 maxmag 1234567891  1  -> 1234567891
    224 mxgx228 maxmag 1 1234567891   -> 1234567891
    225 mxgx229 maxmag 12345678901 1  -> 12345678901
    226 mxgx230 maxmag 1 12345678901  -> 12345678901
    227 mxgx231 maxmag 1234567896  1  -> 1234567896
    228 mxgx232 maxmag 1 1234567896   -> 1234567896
    229 mxgx233 maxmag -1234567891  1 -> -1234567891
    230 mxgx234 maxmag 1 -1234567891  -> -1234567891
    231 mxgx235 maxmag -12345678901 1 -> -12345678901
    232 mxgx236 maxmag 1 -12345678901 -> -12345678901
    233 mxgx237 maxmag -1234567896  1 -> -1234567896
    234 mxgx238 maxmag 1 -1234567896  -> -1234567896
    235 
    236 -- from examples
    237 mxgx280 maxmag '3'   '2'  ->  '3'
    238 mxgx281 maxmag '-10' '3'  ->  '-10'
    239 mxgx282 maxmag '1.0' '1'  ->  '1'
    240 mxgx283 maxmag '1' '1.0'  ->  '1'
    241 mxgx284 maxmag '7' 'NaN'  ->  '7'
    242 
    243 -- overflow and underflow tests ...
    244 maxExponent: 999999999
    245 minexponent: -999999999
    246 mxgx330 maxmag +1.23456789012345E-0 9E+999999999 ->  9E+999999999
    247 mxgx331 maxmag 9E+999999999 +1.23456789012345E-0 ->  9E+999999999
    248 mxgx332 maxmag +0.100 9E-999999999               ->  0.100
    249 mxgx333 maxmag 9E-999999999 +0.100               ->  0.100
    250 mxgx335 maxmag -1.23456789012345E-0 9E+999999999 ->  9E+999999999
    251 mxgx336 maxmag 9E+999999999 -1.23456789012345E-0 ->  9E+999999999
    252 mxgx337 maxmag -0.100 9E-999999999               ->  -0.100
    253 mxgx338 maxmag 9E-999999999 -0.100               ->  -0.100
    254 
    255 mxgx339 maxmag 1e-599999999 1e-400000001   ->  1E-400000001
    256 mxgx340 maxmag 1e-599999999 1e-400000000   ->  1E-400000000
    257 mxgx341 maxmag 1e-600000000 1e-400000000   ->  1E-400000000
    258 mxgx342 maxmag 9e-999999998 0.01           ->  0.01
    259 mxgx343 maxmag 9e-999999998 0.1            ->  0.1
    260 mxgx344 maxmag 0.01 9e-999999998           ->  0.01
    261 mxgx345 maxmag 1e599999999 1e400000001     ->  1E+599999999
    262 mxgx346 maxmag 1e599999999 1e400000000     ->  1E+599999999
    263 mxgx347 maxmag 1e600000000 1e400000000     ->  1E+600000000
    264 mxgx348 maxmag 9e999999998 100             ->  9E+999999998
    265 mxgx349 maxmag 9e999999998 10              ->  9E+999999998
    266 mxgx350 maxmag 100  9e999999998            ->  9E+999999998
    267 -- signs
    268 mxgx351 maxmag  1e+777777777  1e+411111111 ->  1E+777777777
    269 mxgx352 maxmag  1e+777777777 -1e+411111111 ->  1E+777777777
    270 mxgx353 maxmag -1e+777777777  1e+411111111 -> -1E+777777777
    271 mxgx354 maxmag -1e+777777777 -1e+411111111 -> -1E+777777777
    272 mxgx355 maxmag  1e-777777777  1e-411111111 ->  1E-411111111
    273 mxgx356 maxmag  1e-777777777 -1e-411111111 -> -1E-411111111
    274 mxgx357 maxmag -1e-777777777  1e-411111111 ->  1E-411111111
    275 mxgx358 maxmag -1e-777777777 -1e-411111111 -> -1E-411111111
    276 
    277 -- expanded list from min/max 754r purple prose
    278 -- [explicit tests for exponent ordering]
    279 mxgx401 maxmag  Inf    1.1     ->  Infinity
    280 mxgx402 maxmag  1.1    1       ->  1.1
    281 mxgx403 maxmag  1      1.0     ->  1
    282 mxgx404 maxmag  1.0    0.1     ->  1.0
    283 mxgx405 maxmag  0.1    0.10    ->  0.1
    284 mxgx406 maxmag  0.10   0.100   ->  0.10
    285 mxgx407 maxmag  0.10   0       ->  0.10
    286 mxgx408 maxmag  0      0.0     ->  0
    287 mxgx409 maxmag  0.0   -0       ->  0.0
    288 mxgx410 maxmag  0.0   -0.0     ->  0.0
    289 mxgx411 maxmag  0.00  -0.0     ->  0.00
    290 mxgx412 maxmag  0.0   -0.00    ->  0.0
    291 mxgx413 maxmag  0     -0.0     ->  0
    292 mxgx414 maxmag  0     -0       ->  0
    293 mxgx415 maxmag -0.0   -0       -> -0.0
    294 mxgx416 maxmag -0     -0.100   -> -0.100
    295 mxgx417 maxmag -0.100 -0.10    -> -0.100
    296 mxgx418 maxmag -0.10  -0.1     -> -0.10
    297 mxgx419 maxmag -0.1   -1.0     -> -1.0
    298 mxgx420 maxmag -1.0   -1       -> -1.0
    299 mxgx421 maxmag -1     -1.1     -> -1.1
    300 mxgx423 maxmag -1.1   -Inf     -> -Infinity
    301 -- same with operands reversed
    302 mxgx431 maxmag  1.1    Inf     ->  Infinity
    303 mxgx432 maxmag  1      1.1     ->  1.1
    304 mxgx433 maxmag  1.0    1       ->  1
    305 mxgx434 maxmag  0.1    1.0     ->  1.0
    306 mxgx435 maxmag  0.10   0.1     ->  0.1
    307 mxgx436 maxmag  0.100  0.10    ->  0.10
    308 mxgx437 maxmag  0      0.10    ->  0.10
    309 mxgx438 maxmag  0.0    0       ->  0
    310 mxgx439 maxmag -0      0.0     ->  0.0
    311 mxgx440 maxmag -0.0    0.0     ->  0.0
    312 mxgx441 maxmag -0.0    0.00    ->  0.00
    313 mxgx442 maxmag -0.00   0.0     ->  0.0
    314 mxgx443 maxmag -0.0    0       ->  0
    315 mxgx444 maxmag -0      0       ->  0
    316 mxgx445 maxmag -0     -0.0     -> -0.0
    317 mxgx446 maxmag -0.100 -0       -> -0.100
    318 mxgx447 maxmag -0.10  -0.100   -> -0.100
    319 mxgx448 maxmag -0.1   -0.10    -> -0.10
    320 mxgx449 maxmag -1.0   -0.1     -> -1.0
    321 mxgx450 maxmag -1     -1.0     -> -1.0
    322 mxgx451 maxmag -1.1   -1       -> -1.1
    323 mxgx453 maxmag -Inf   -1.1     -> -Infinity
    324 -- largies
    325 mxgx460 maxmag  1000   1E+3    ->  1E+3
    326 mxgx461 maxmag  1E+3   1000    ->  1E+3
    327 mxgx462 maxmag  1000  -1E+3    ->  1000
    328 mxgx463 maxmag  1E+3  -1000    ->  1E+3
    329 mxgx464 maxmag -1000   1E+3    ->  1E+3
    330 mxgx465 maxmag -1E+3   1000    ->  1000
    331 mxgx466 maxmag -1000  -1E+3    -> -1000
    332 mxgx467 maxmag -1E+3  -1000    -> -1000
    333 
    334 -- rounding (results treated as though plus)
    335 maxexponent: 999999999
    336 minexponent: -999999999
    337 precision: 3
    338 
    339 mxgx470 maxmag  1      .5     ->  1
    340 mxgx471 maxmag  10     5      ->  10
    341 mxgx472 maxmag  100    50     ->  100
    342 mxgx473 maxmag  1000   500    ->  1.00E+3 Rounded
    343 mxgx474 maxmag  10000  5000   ->  1.00E+4 Rounded
    344 mxgx475 maxmag  6      .5     ->  6
    345 mxgx476 maxmag  66     5      ->  66
    346 mxgx477 maxmag  666    50     ->  666
    347 mxgx478 maxmag  6666   500    ->  6.67E+3 Rounded Inexact
    348 mxgx479 maxmag  66666  5000   ->  6.67E+4 Rounded Inexact
    349 mxgx480 maxmag  33333  5000   ->  3.33E+4 Rounded Inexact
    350 mxgx481 maxmag  .5     1      ->  1
    351 mxgx482 maxmag  .5     10     ->  10
    352 mxgx483 maxmag  .5     100    ->  100
    353 mxgx484 maxmag  .5     1000   ->  1.00E+3 Rounded
    354 mxgx485 maxmag  .5     10000  ->  1.00E+4 Rounded
    355 mxgx486 maxmag  .5     6      ->  6
    356 mxgx487 maxmag  .5     66     ->  66
    357 mxgx488 maxmag  .5     666    ->  666
    358 mxgx489 maxmag  .5     6666   ->  6.67E+3 Rounded Inexact
    359 mxgx490 maxmag  .5     66666  ->  6.67E+4 Rounded Inexact
    360 mxgx491 maxmag  .5     33333  ->  3.33E+4 Rounded Inexact
    361 
    362 -- overflow tests
    363 maxexponent: 999999999
    364 minexponent: -999999999
    365 precision: 3
    366 mxgx500 maxmag 9.999E+999999999  0 ->  Infinity Inexact Overflow Rounded
    367 mxgx501 maxmag -9.999E+999999999 0 -> -Infinity Inexact Overflow Rounded
    368 
    369 -- subnormals and underflow
    370 precision: 3
    371 maxexponent: 999
    372 minexponent: -999
    373 mxgx510 maxmag  1.00E-999       0  ->   1.00E-999
    374 mxgx511 maxmag  0.1E-999        0  ->   1E-1000   Subnormal
    375 mxgx512 maxmag  0.10E-999       0  ->   1.0E-1000 Subnormal
    376 mxgx513 maxmag  0.100E-999      0  ->   1.0E-1000 Subnormal Rounded
    377 mxgx514 maxmag  0.01E-999       0  ->   1E-1001   Subnormal
    378 -- next is rounded to Nmin
    379 mxgx515 maxmag  0.999E-999      0  ->   1.00E-999 Inexact Rounded Subnormal Underflow
    380 mxgx516 maxmag  0.099E-999      0  ->   1.0E-1000 Inexact Rounded Subnormal Underflow
    381 mxgx517 maxmag  0.009E-999      0  ->   1E-1001   Inexact Rounded Subnormal Underflow
    382 mxgx518 maxmag  0.001E-999      0  ->   0E-1001   Inexact Rounded Subnormal Underflow Clamped
    383 mxgx519 maxmag  0.0009E-999     0  ->   0E-1001   Inexact Rounded Subnormal Underflow Clamped
    384 mxgx520 maxmag  0.0001E-999     0  ->   0E-1001   Inexact Rounded Subnormal Underflow Clamped
    385 
    386 mxgx530 maxmag -1.00E-999       0  ->  -1.00E-999
    387 mxgx531 maxmag -0.1E-999        0  ->  -1E-1000   Subnormal
    388 mxgx532 maxmag -0.10E-999       0  ->  -1.0E-1000 Subnormal
    389 mxgx533 maxmag -0.100E-999      0  ->  -1.0E-1000 Subnormal Rounded
    390 mxgx534 maxmag -0.01E-999       0  ->  -1E-1001   Subnormal
    391 -- next is rounded to -Nmin
    392 mxgx535 maxmag -0.999E-999      0  ->  -1.00E-999 Inexact Rounded Subnormal Underflow
    393 mxgx536 maxmag -0.099E-999      0  ->  -1.0E-1000 Inexact Rounded Subnormal Underflow
    394 mxgx537 maxmag -0.009E-999      0  ->  -1E-1001   Inexact Rounded Subnormal Underflow
    395 mxgx538 maxmag -0.001E-999      0  ->  -0E-1001   Inexact Rounded Subnormal Underflow Clamped
    396 mxgx539 maxmag -0.0009E-999     0  ->  -0E-1001   Inexact Rounded Subnormal Underflow Clamped
    397 mxgx540 maxmag -0.0001E-999     0  ->  -0E-1001   Inexact Rounded Subnormal Underflow Clamped
    398 
    399 -- Null tests
    400 mxgx900 maxmag 10  #  -> NaN Invalid_operation
    401 mxgx901 maxmag  # 10  -> NaN Invalid_operation
    402 
    403 
    404 
    405