| blob | efbb5baf855f87b3da1a7b087f2116eaa82028be |
1 ------------------------------------------------------------------------
2 -- divide.decTest -- decimal division --
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@uk.ibm.com --
19 ------------------------------------------------------------------------
20 version: 2.59
22 extended: 1
23 precision: 9
24 rounding: half_up
25 maxExponent: 384
26 minexponent: -383
28 -- sanity checks
29 divx001 divide 1 1 -> 1
30 divx002 divide 2 1 -> 2
31 divx003 divide 1 2 -> 0.5
32 divx004 divide 2 2 -> 1
33 divx005 divide 0 1 -> 0
34 divx006 divide 0 2 -> 0
35 divx007 divide 1 3 -> 0.333333333 Inexact Rounded
36 divx008 divide 2 3 -> 0.666666667 Inexact Rounded
37 divx009 divide 3 3 -> 1
39 divx010 divide 2.4 1 -> 2.4
40 divx011 divide 2.4 -1 -> -2.4
41 divx012 divide -2.4 1 -> -2.4
42 divx013 divide -2.4 -1 -> 2.4
43 divx014 divide 2.40 1 -> 2.40
44 divx015 divide 2.400 1 -> 2.400
45 divx016 divide 2.4 2 -> 1.2
46 divx017 divide 2.400 2 -> 1.200
47 divx018 divide 2. 2 -> 1
48 divx019 divide 20 20 -> 1
50 divx020 divide 187 187 -> 1
51 divx021 divide 5 2 -> 2.5
52 divx022 divide 50 20 -> 2.5
53 divx023 divide 500 200 -> 2.5
54 divx024 divide 50.0 20.0 -> 2.5
55 divx025 divide 5.00 2.00 -> 2.5
56 divx026 divide 5 2.0 -> 2.5
57 divx027 divide 5 2.000 -> 2.5
58 divx028 divide 5 0.20 -> 25
59 divx029 divide 5 0.200 -> 25
60 divx030 divide 10 1 -> 10
61 divx031 divide 100 1 -> 100
62 divx032 divide 1000 1 -> 1000
63 divx033 divide 1000 100 -> 10
65 divx035 divide 1 2 -> 0.5
66 divx036 divide 1 4 -> 0.25
67 divx037 divide 1 8 -> 0.125
68 divx038 divide 1 16 -> 0.0625
69 divx039 divide 1 32 -> 0.03125
70 divx040 divide 1 64 -> 0.015625
71 divx041 divide 1 -2 -> -0.5
72 divx042 divide 1 -4 -> -0.25
73 divx043 divide 1 -8 -> -0.125
74 divx044 divide 1 -16 -> -0.0625
75 divx045 divide 1 -32 -> -0.03125
76 divx046 divide 1 -64 -> -0.015625
77 divx047 divide -1 2 -> -0.5
78 divx048 divide -1 4 -> -0.25
79 divx049 divide -1 8 -> -0.125
80 divx050 divide -1 16 -> -0.0625
81 divx051 divide -1 32 -> -0.03125
82 divx052 divide -1 64 -> -0.015625
83 divx053 divide -1 -2 -> 0.5
84 divx054 divide -1 -4 -> 0.25
85 divx055 divide -1 -8 -> 0.125
86 divx056 divide -1 -16 -> 0.0625
87 divx057 divide -1 -32 -> 0.03125
88 divx058 divide -1 -64 -> 0.015625
90 divx070 divide 999999999 1 -> 999999999
91 divx071 divide 999999999.4 1 -> 999999999 Inexact Rounded
92 divx072 divide 999999999.5 1 -> 1.00000000E+9 Inexact Rounded
93 divx073 divide 999999999.9 1 -> 1.00000000E+9 Inexact Rounded
94 divx074 divide 999999999.999 1 -> 1.00000000E+9 Inexact Rounded
95 precision: 6
96 divx080 divide 999999999 1 -> 1.00000E+9 Inexact Rounded
97 divx081 divide 99999999 1 -> 1.00000E+8 Inexact Rounded
98 divx082 divide 9999999 1 -> 1.00000E+7 Inexact Rounded
99 divx083 divide 999999 1 -> 999999
100 divx084 divide 99999 1 -> 99999
101 divx085 divide 9999 1 -> 9999
102 divx086 divide 999 1 -> 999
103 divx087 divide 99 1 -> 99
104 divx088 divide 9 1 -> 9
106 precision: 9
107 divx090 divide 0. 1 -> 0
108 divx091 divide .0 1 -> 0.0
109 divx092 divide 0.00 1 -> 0.00
110 divx093 divide 0.00E+9 1 -> 0E+7
111 divx094 divide 0.0000E-50 1 -> 0E-54
113 divx095 divide 1 1E-8 -> 1E+8
114 divx096 divide 1 1E-9 -> 1E+9
115 divx097 divide 1 1E-10 -> 1E+10
116 divx098 divide 1 1E-11 -> 1E+11
117 divx099 divide 1 1E-12 -> 1E+12
119 divx100 divide 1 1 -> 1
120 divx101 divide 1 2 -> 0.5
121 divx102 divide 1 3 -> 0.333333333 Inexact Rounded
122 divx103 divide 1 4 -> 0.25
123 divx104 divide 1 5 -> 0.2
124 divx105 divide 1 6 -> 0.166666667 Inexact Rounded
125 divx106 divide 1 7 -> 0.142857143 Inexact Rounded
126 divx107 divide 1 8 -> 0.125
127 divx108 divide 1 9 -> 0.111111111 Inexact Rounded
128 divx109 divide 1 10 -> 0.1
129 divx110 divide 1 1 -> 1
130 divx111 divide 2 1 -> 2
131 divx112 divide 3 1 -> 3
132 divx113 divide 4 1 -> 4
133 divx114 divide 5 1 -> 5
134 divx115 divide 6 1 -> 6
135 divx116 divide 7 1 -> 7
136 divx117 divide 8 1 -> 8
137 divx118 divide 9 1 -> 9
138 divx119 divide 10 1 -> 10
140 divx120 divide 3E+1 0.001 -> 3E+4
141 divx121 divide 2.200 2 -> 1.100
143 divx130 divide 12345 4.999 -> 2469.49390 Inexact Rounded
144 divx131 divide 12345 4.99 -> 2473.94790 Inexact Rounded
145 divx132 divide 12345 4.9 -> 2519.38776 Inexact Rounded
146 divx133 divide 12345 5 -> 2469
147 divx134 divide 12345 5.1 -> 2420.58824 Inexact Rounded
148 divx135 divide 12345 5.01 -> 2464.07186 Inexact Rounded
149 divx136 divide 12345 5.001 -> 2468.50630 Inexact Rounded
151 precision: 9
152 maxexponent: 999999999
153 minexponent: -999999999
155 -- test possibly imprecise results
156 divx220 divide 391 597 -> 0.654941374 Inexact Rounded
157 divx221 divide 391 -597 -> -0.654941374 Inexact Rounded
158 divx222 divide -391 597 -> -0.654941374 Inexact Rounded
159 divx223 divide -391 -597 -> 0.654941374 Inexact Rounded
161 -- test some cases that are close to exponent overflow
162 maxexponent: 999999999
163 minexponent: -999999999
164 divx270 divide 1 1e999999999 -> 1E-999999999
165 divx271 divide 1 0.9e999999999 -> 1.11111111E-999999999 Inexact Rounded
166 divx272 divide 1 0.99e999999999 -> 1.01010101E-999999999 Inexact Rounded
167 divx273 divide 1 0.999999999e999999999 -> 1.00000000E-999999999 Inexact Rounded
168 divx274 divide 9e999999999 1 -> 9E+999999999
169 divx275 divide 9.9e999999999 1 -> 9.9E+999999999
170 divx276 divide 9.99e999999999 1 -> 9.99E+999999999
171 divx277 divide 9.99999999e999999999 1 -> 9.99999999E+999999999
173 divx280 divide 0.1 9e-999999999 -> 1.11111111E+999999997 Inexact Rounded
174 divx281 divide 0.1 99e-999999999 -> 1.01010101E+999999996 Inexact Rounded
175 divx282 divide 0.1 999e-999999999 -> 1.00100100E+999999995 Inexact Rounded
177 divx283 divide 0.1 9e-999999998 -> 1.11111111E+999999996 Inexact Rounded
178 divx284 divide 0.1 99e-999999998 -> 1.01010101E+999999995 Inexact Rounded
179 divx285 divide 0.1 999e-999999998 -> 1.00100100E+999999994 Inexact Rounded
180 divx286 divide 0.1 999e-999999997 -> 1.00100100E+999999993 Inexact Rounded
181 divx287 divide 0.1 9999e-999999997 -> 1.00010001E+999999992 Inexact Rounded
182 divx288 divide 0.1 99999e-999999997 -> 1.00001000E+999999991 Inexact Rounded
184 -- Divide into 0 tests
186 divx301 divide 0 7 -> 0
187 divx302 divide 0 7E-5 -> 0E+5
188 divx303 divide 0 7E-1 -> 0E+1
189 divx304 divide 0 7E+1 -> 0.0
190 divx305 divide 0 7E+5 -> 0.00000
191 divx306 divide 0 7E+6 -> 0.000000
192 divx307 divide 0 7E+7 -> 0E-7
193 divx308 divide 0 70E-5 -> 0E+5
194 divx309 divide 0 70E-1 -> 0E+1
195 divx310 divide 0 70E+0 -> 0
196 divx311 divide 0 70E+1 -> 0.0
197 divx312 divide 0 70E+5 -> 0.00000
198 divx313 divide 0 70E+6 -> 0.000000
199 divx314 divide 0 70E+7 -> 0E-7
200 divx315 divide 0 700E-5 -> 0E+5
201 divx316 divide 0 700E-1 -> 0E+1
202 divx317 divide 0 700E+0 -> 0
203 divx318 divide 0 700E+1 -> 0.0
204 divx319 divide 0 700E+5 -> 0.00000
205 divx320 divide 0 700E+6 -> 0.000000
206 divx321 divide 0 700E+7 -> 0E-7
207 divx322 divide 0 700E+77 -> 0E-77
209 divx331 divide 0E-3 7E-5 -> 0E+2
210 divx332 divide 0E-3 7E-1 -> 0.00
211 divx333 divide 0E-3 7E+1 -> 0.0000
212 divx334 divide 0E-3 7E+5 -> 0E-8
213 divx335 divide 0E-1 7E-5 -> 0E+4
214 divx336 divide 0E-1 7E-1 -> 0
215 divx337 divide 0E-1 7E+1 -> 0.00
216 divx338 divide 0E-1 7E+5 -> 0.000000
217 divx339 divide 0E+1 7E-5 -> 0E+6
218 divx340 divide 0E+1 7E-1 -> 0E+2
219 divx341 divide 0E+1 7E+1 -> 0
220 divx342 divide 0E+1 7E+5 -> 0.0000
221 divx343 divide 0E+3 7E-5 -> 0E+8
222 divx344 divide 0E+3 7E-1 -> 0E+4
223 divx345 divide 0E+3 7E+1 -> 0E+2
224 divx346 divide 0E+3 7E+5 -> 0.00
226 maxexponent: 92
227 minexponent: -92
228 precision: 7
229 divx351 divide 0E-92 7E-1 -> 0E-91
230 divx352 divide 0E-92 7E+1 -> 0E-93
231 divx353 divide 0E-92 7E+5 -> 0E-97
232 divx354 divide 0E-92 7E+6 -> 0E-98
233 divx355 divide 0E-92 7E+7 -> 0E-98 Clamped
234 divx356 divide 0E-92 777E-1 -> 0E-91
235 divx357 divide 0E-92 777E+1 -> 0E-93
236 divx358 divide 0E-92 777E+3 -> 0E-95
237 divx359 divide 0E-92 777E+4 -> 0E-96
238 divx360 divide 0E-92 777E+5 -> 0E-97
239 divx361 divide 0E-92 777E+6 -> 0E-98
240 divx362 divide 0E-92 777E+7 -> 0E-98 Clamped
241 divx363 divide 0E-92 7E+92 -> 0E-98 Clamped
243 divx371 divide 0E-92 700E-1 -> 0E-91
244 divx372 divide 0E-92 700E+1 -> 0E-93
245 divx373 divide 0E-92 700E+3 -> 0E-95
246 divx374 divide 0E-92 700E+4 -> 0E-96
247 divx375 divide 0E-92 700E+5 -> 0E-97
248 divx376 divide 0E-92 700E+6 -> 0E-98
249 divx377 divide 0E-92 700E+7 -> 0E-98 Clamped
251 divx381 divide 0E+92 7E+1 -> 0E+91
252 divx382 divide 0E+92 7E+0 -> 0E+92
253 divx383 divide 0E+92 7E-1 -> 0E+92 Clamped
254 divx384 divide 0E+90 777E+1 -> 0E+89
255 divx385 divide 0E+90 777E-1 -> 0E+91
256 divx386 divide 0E+90 777E-2 -> 0E+92
257 divx387 divide 0E+90 777E-3 -> 0E+92 Clamped
258 divx388 divide 0E+90 777E-4 -> 0E+92 Clamped
260 divx391 divide 0E+90 700E+1 -> 0E+89
261 divx392 divide 0E+90 700E-1 -> 0E+91
262 divx393 divide 0E+90 700E-2 -> 0E+92
263 divx394 divide 0E+90 700E-3 -> 0E+92 Clamped
264 divx395 divide 0E+90 700E-4 -> 0E+92 Clamped
266 -- input rounding checks
267 maxexponent: 999
268 minexponent: -999
269 precision: 9
270 divx401 divide 12345678000 1 -> 1.23456780E+10 Rounded
271 divx402 divide 1 12345678000 -> 8.10000066E-11 Inexact Rounded
272 divx403 divide 1234567800 1 -> 1.23456780E+9 Rounded
273 divx404 divide 1 1234567800 -> 8.10000066E-10 Inexact Rounded
274 divx405 divide 1234567890 1 -> 1.23456789E+9 Rounded
275 divx406 divide 1 1234567890 -> 8.10000007E-10 Inexact Rounded
276 divx407 divide 1234567891 1 -> 1.23456789E+9 Inexact Rounded
277 divx408 divide 1 1234567891 -> 8.10000007E-10 Inexact Rounded
278 divx409 divide 12345678901 1 -> 1.23456789E+10 Inexact Rounded
279 divx410 divide 1 12345678901 -> 8.10000007E-11 Inexact Rounded
280 divx411 divide 1234567896 1 -> 1.23456790E+9 Inexact Rounded
281 divx412 divide 1 1234567896 -> 8.10000003E-10 Inexact Rounded
282 divx413 divide 1 1234567897 -> 8.10000003E-10 Inexact Rounded
283 divx414 divide 1 1234567898 -> 8.10000002E-10 Inexact Rounded
284 divx415 divide 1 1234567899 -> 8.10000001E-10 Inexact Rounded
285 divx416 divide 1 1234567900 -> 8.10000001E-10 Inexact Rounded
286 divx417 divide 1 1234567901 -> 8.10000000E-10 Inexact Rounded
287 divx418 divide 1 1234567902 -> 8.09999999E-10 Inexact Rounded
288 -- some longies
289 divx421 divide 1234567896.000000000000 1 -> 1.23456790E+9 Inexact Rounded
290 divx422 divide 1 1234567896.000000000000 -> 8.10000003E-10 Inexact Rounded
291 divx423 divide 1234567896.000000000001 1 -> 1.23456790E+9 Inexact Rounded
292 divx424 divide 1 1234567896.000000000001 -> 8.10000003E-10 Inexact Rounded
293 divx425 divide 1234567896.000000000000000000000000000000000000000009 1 -> 1.23456790E+9 Inexact Rounded
294 divx426 divide 1 1234567896.000000000000000000000000000000000000000009 -> 8.10000003E-10 Inexact Rounded
295 divx427 divide 1234567897.900010000000000000000000000000000000000009 1 -> 1.23456790E+9 Inexact Rounded
296 divx428 divide 1 1234567897.900010000000000000000000000000000000000009 -> 8.10000002E-10 Inexact Rounded
298 precision: 15
299 -- still checking...
300 divx441 divide 12345678000 1 -> 12345678000
301 divx442 divide 1 12345678000 -> 8.10000066420005E-11 Inexact Rounded
302 divx443 divide 1234567800 1 -> 1234567800
303 divx444 divide 1 1234567800 -> 8.10000066420005E-10 Inexact Rounded
304 divx445 divide 1234567890 1 -> 1234567890
305 divx446 divide 1 1234567890 -> 8.10000007371000E-10 Inexact Rounded
306 divx447 divide 1234567891 1 -> 1234567891
307 divx448 divide 1 1234567891 -> 8.10000006714900E-10 Inexact Rounded
308 divx449 divide 12345678901 1 -> 12345678901
309 divx450 divide 1 12345678901 -> 8.10000007305390E-11 Inexact Rounded
310 divx451 divide 1234567896 1 -> 1234567896
311 divx452 divide 1 1234567896 -> 8.10000003434400E-10 Inexact Rounded
313 -- high-lows
314 divx453 divide 1e+1 1 -> 1E+1
315 divx454 divide 1e+1 1.0 -> 1E+1
316 divx455 divide 1e+1 1.00 -> 1E+1
317 divx456 divide 1e+2 2 -> 5E+1
318 divx457 divide 1e+2 2.0 -> 5E+1
319 divx458 divide 1e+2 2.00 -> 5E+1
321 -- some from IEEE discussions
322 divx460 divide 3e0 2e0 -> 1.5
323 divx461 divide 30e-1 2e0 -> 1.5
324 divx462 divide 300e-2 2e0 -> 1.50
325 divx464 divide 3000e-3 2e0 -> 1.500
326 divx465 divide 3e0 20e-1 -> 1.5
327 divx466 divide 30e-1 20e-1 -> 1.5
328 divx467 divide 300e-2 20e-1 -> 1.5
329 divx468 divide 3000e-3 20e-1 -> 1.50
330 divx469 divide 3e0 200e-2 -> 1.5
331 divx470 divide 30e-1 200e-2 -> 1.5
332 divx471 divide 300e-2 200e-2 -> 1.5
333 divx472 divide 3000e-3 200e-2 -> 1.5
334 divx473 divide 3e0 2000e-3 -> 1.5
335 divx474 divide 30e-1 2000e-3 -> 1.5
336 divx475 divide 300e-2 2000e-3 -> 1.5
337 divx476 divide 3000e-3 2000e-3 -> 1.5
339 -- some reciprocals
340 divx480 divide 1 1.0E+33 -> 1E-33
341 divx481 divide 1 10E+33 -> 1E-34
342 divx482 divide 1 1.0E-33 -> 1E+33
343 divx483 divide 1 10E-33 -> 1E+32
345 -- RMS discussion table
346 maxexponent: 96
347 minexponent: -95
348 precision: 7
350 divx484 divide 0e5 1e3 -> 0E+2
351 divx485 divide 0e5 2e3 -> 0E+2
352 divx486 divide 0e5 10e2 -> 0E+3
353 divx487 divide 0e5 20e2 -> 0E+3
354 divx488 divide 0e5 100e1 -> 0E+4
355 divx489 divide 0e5 200e1 -> 0E+4
357 divx491 divide 1e5 1e3 -> 1E+2
358 divx492 divide 1e5 2e3 -> 5E+1
359 divx493 divide 1e5 10e2 -> 1E+2
360 divx494 divide 1e5 20e2 -> 5E+1
361 divx495 divide 1e5 100e1 -> 1E+2
362 divx496 divide 1e5 200e1 -> 5E+1
364 -- tryzeros cases
365 precision: 7
366 rounding: half_up
367 maxExponent: 92
368 minexponent: -92
369 divx497 divide 0E+86 1000E-13 -> 0E+92 Clamped
370 divx498 divide 0E-98 1000E+13 -> 0E-98 Clamped
372 precision: 9
373 rounding: half_up
374 maxExponent: 999
375 minexponent: -999
377 -- focus on trailing zeros issues
378 precision: 9
379 divx500 divide 1 9.9 -> 0.101010101 Inexact Rounded
380 precision: 8
381 divx501 divide 1 9.9 -> 0.10101010 Inexact Rounded
382 precision: 7
383 divx502 divide 1 9.9 -> 0.1010101 Inexact Rounded
384 precision: 6
385 divx503 divide 1 9.9 -> 0.101010 Inexact Rounded
386 precision: 9
388 divx511 divide 1 2 -> 0.5
389 divx512 divide 1.0 2 -> 0.5
390 divx513 divide 1.00 2 -> 0.50
391 divx514 divide 1.000 2 -> 0.500
392 divx515 divide 1.0000 2 -> 0.5000
393 divx516 divide 1.00000 2 -> 0.50000
394 divx517 divide 1.000000 2 -> 0.500000
395 divx518 divide 1.0000000 2 -> 0.5000000
396 divx519 divide 1.00 2.00 -> 0.5
398 divx521 divide 2 1 -> 2
399 divx522 divide 2 1.0 -> 2
400 divx523 divide 2 1.00 -> 2
401 divx524 divide 2 1.000 -> 2
402 divx525 divide 2 1.0000 -> 2
403 divx526 divide 2 1.00000 -> 2
404 divx527 divide 2 1.000000 -> 2
405 divx528 divide 2 1.0000000 -> 2
406 divx529 divide 2.00 1.00 -> 2
408 divx530 divide 2.40 2 -> 1.20
409 divx531 divide 2.40 4 -> 0.60
410 divx532 divide 2.40 10 -> 0.24
411 divx533 divide 2.40 2.0 -> 1.2
412 divx534 divide 2.40 4.0 -> 0.6
413 divx535 divide 2.40 10.0 -> 0.24
414 divx536 divide 2.40 2.00 -> 1.2
415 divx537 divide 2.40 4.00 -> 0.6
416 divx538 divide 2.40 10.00 -> 0.24
417 divx539 divide 0.9 0.1 -> 9
418 divx540 divide 0.9 0.01 -> 9E+1
419 divx541 divide 0.9 0.001 -> 9E+2
420 divx542 divide 5 2 -> 2.5
421 divx543 divide 5 2.0 -> 2.5
422 divx544 divide 5 2.00 -> 2.5
423 divx545 divide 5 20 -> 0.25
424 divx546 divide 5 20.0 -> 0.25
425 divx547 divide 2.400 2 -> 1.200
426 divx548 divide 2.400 2.0 -> 1.20
427 divx549 divide 2.400 2.400 -> 1
429 divx550 divide 240 1 -> 240
430 divx551 divide 240 10 -> 24
431 divx552 divide 240 100 -> 2.4
432 divx553 divide 240 1000 -> 0.24
433 divx554 divide 2400 1 -> 2400
434 divx555 divide 2400 10 -> 240
435 divx556 divide 2400 100 -> 24
436 divx557 divide 2400 1000 -> 2.4
438 -- +ve exponent
439 precision: 5
440 divx570 divide 2.4E+6 2 -> 1.2E+6
441 divx571 divide 2.40E+6 2 -> 1.20E+6
442 divx572 divide 2.400E+6 2 -> 1.200E+6
443 divx573 divide 2.4000E+6 2 -> 1.2000E+6
444 divx574 divide 24E+5 2 -> 1.2E+6
445 divx575 divide 240E+4 2 -> 1.20E+6
446 divx576 divide 2400E+3 2 -> 1.200E+6
447 divx577 divide 24000E+2 2 -> 1.2000E+6
448 precision: 6
449 divx580 divide 2.4E+6 2 -> 1.2E+6
450 divx581 divide 2.40E+6 2 -> 1.20E+6
451 divx582 divide 2.400E+6 2 -> 1.200E+6
452 divx583 divide 2.4000E+6 2 -> 1.2000E+6
453 divx584 divide 24E+5 2 -> 1.2E+6
454 divx585 divide 240E+4 2 -> 1.20E+6
455 divx586 divide 2400E+3 2 -> 1.200E+6
456 divx587 divide 24000E+2 2 -> 1.2000E+6
457 precision: 7
458 divx590 divide 2.4E+6 2 -> 1.2E+6
459 divx591 divide 2.40E+6 2 -> 1.20E+6
460 divx592 divide 2.400E+6 2 -> 1.200E+6
461 divx593 divide 2.4000E+6 2 -> 1.2000E+6
462 divx594 divide 24E+5 2 -> 1.2E+6
463 divx595 divide 240E+4 2 -> 1.20E+6
464 divx596 divide 2400E+3 2 -> 1.200E+6
465 divx597 divide 24000E+2 2 -> 1.2000E+6
466 precision: 9
467 divx600 divide 2.4E+9 2 -> 1.2E+9
468 divx601 divide 2.40E+9 2 -> 1.20E+9
469 divx602 divide 2.400E+9 2 -> 1.200E+9
470 divx603 divide 2.4000E+9 2 -> 1.2000E+9
471 divx604 divide 24E+8 2 -> 1.2E+9
472 divx605 divide 240E+7 2 -> 1.20E+9
473 divx606 divide 2400E+6 2 -> 1.200E+9
474 divx607 divide 24000E+5 2 -> 1.2000E+9
476 -- long operand triangle
477 precision: 33
478 divx610 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.8131097703792 Inexact Rounded
479 precision: 32
480 divx611 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.813109770379 Inexact Rounded
481 precision: 31
482 divx612 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.81310977038 Inexact Rounded
483 precision: 30
484 divx613 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.8131097704 Inexact Rounded
485 precision: 29
486 divx614 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.813109770 Inexact Rounded
487 precision: 28
488 divx615 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.81310977 Inexact Rounded
489 precision: 27
490 divx616 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.8131098 Inexact Rounded
491 precision: 26
492 divx617 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.813110 Inexact Rounded
493 precision: 25
494 divx618 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.81311 Inexact Rounded
495 precision: 24
496 divx619 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.8131 Inexact Rounded
497 precision: 23
498 divx620 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.813 Inexact Rounded
499 precision: 22
500 divx621 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.81 Inexact Rounded
501 precision: 21
502 divx622 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817797.8 Inexact Rounded
503 precision: 20
504 divx623 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -41011408883796817798 Inexact Rounded
505 precision: 19
506 divx624 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101140888379681780E+19 Inexact Rounded
507 precision: 18
508 divx625 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10114088837968178E+19 Inexact Rounded
509 precision: 17
510 divx626 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1011408883796818E+19 Inexact Rounded
511 precision: 16
512 divx627 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101140888379682E+19 Inexact Rounded
513 precision: 15
514 divx628 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10114088837968E+19 Inexact Rounded
515 precision: 14
516 divx629 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1011408883797E+19 Inexact Rounded
517 precision: 13
518 divx630 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101140888380E+19 Inexact Rounded
519 precision: 12
520 divx631 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10114088838E+19 Inexact Rounded
521 precision: 11
522 divx632 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1011408884E+19 Inexact Rounded
523 precision: 10
524 divx633 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101140888E+19 Inexact Rounded
525 precision: 9
526 divx634 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10114089E+19 Inexact Rounded
527 precision: 8
528 divx635 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1011409E+19 Inexact Rounded
529 precision: 7
530 divx636 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101141E+19 Inexact Rounded
531 precision: 6
532 divx637 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10114E+19 Inexact Rounded
533 precision: 5
534 divx638 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1011E+19 Inexact Rounded
535 precision: 4
536 divx639 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.101E+19 Inexact Rounded
537 precision: 3
538 divx640 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.10E+19 Inexact Rounded
539 precision: 2
540 divx641 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4.1E+19 Inexact Rounded
541 precision: 1
542 divx642 divide -3374988581607586061255542201048 82293895124.90045271504836568681 -> -4E+19 Inexact Rounded
544 -- more zeros, etc.
545 precision: 16
546 rounding: half_up
547 maxExponent: 384
548 minExponent: -383
550 divx731 divide 5.00 1E-3 -> 5.00E+3
551 divx732 divide 00.00 0.000 -> NaN Division_undefined
552 divx733 divide 00.00 0E-3 -> NaN Division_undefined
553 divx734 divide 0 -0 -> NaN Division_undefined
554 divx735 divide -0 0 -> NaN Division_undefined
555 divx736 divide -0 -0 -> NaN Division_undefined
557 divx741 divide 0 -1 -> -0
558 divx742 divide -0 -1 -> 0
559 divx743 divide 0 1 -> 0
560 divx744 divide -0 1 -> -0
561 divx745 divide -1 0 -> -Infinity Division_by_zero
562 divx746 divide -1 -0 -> Infinity Division_by_zero
563 divx747 divide 1 0 -> Infinity Division_by_zero
564 divx748 divide 1 -0 -> -Infinity Division_by_zero
566 divx751 divide 0.0 -1 -> -0.0
567 divx752 divide -0.0 -1 -> 0.0
568 divx753 divide 0.0 1 -> 0.0
569 divx754 divide -0.0 1 -> -0.0
570 divx755 divide -1.0 0 -> -Infinity Division_by_zero
571 divx756 divide -1.0 -0 -> Infinity Division_by_zero
572 divx757 divide 1.0 0 -> Infinity Division_by_zero
573 divx758 divide 1.0 -0 -> -Infinity Division_by_zero
575 divx761 divide 0 -1.0 -> -0E+1
576 divx762 divide -0 -1.0 -> 0E+1
577 divx763 divide 0 1.0 -> 0E+1
578 divx764 divide -0 1.0 -> -0E+1
579 divx765 divide -1 0.0 -> -Infinity Division_by_zero
580 divx766 divide -1 -0.0 -> Infinity Division_by_zero
581 divx767 divide 1 0.0 -> Infinity Division_by_zero
582 divx768 divide 1 -0.0 -> -Infinity Division_by_zero
584 divx771 divide 0.0 -1.0 -> -0
585 divx772 divide -0.0 -1.0 -> 0
586 divx773 divide 0.0 1.0 -> 0
587 divx774 divide -0.0 1.0 -> -0
588 divx775 divide -1.0 0.0 -> -Infinity Division_by_zero
589 divx776 divide -1.0 -0.0 -> Infinity Division_by_zero
590 divx777 divide 1.0 0.0 -> Infinity Division_by_zero
591 divx778 divide 1.0 -0.0 -> -Infinity Division_by_zero
593 -- Specials
594 divx780 divide Inf -Inf -> NaN Invalid_operation
595 divx781 divide Inf -1000 -> -Infinity
596 divx782 divide Inf -1 -> -Infinity
597 divx783 divide Inf -0 -> -Infinity
598 divx784 divide Inf 0 -> Infinity
599 divx785 divide Inf 1 -> Infinity
600 divx786 divide Inf 1000 -> Infinity
601 divx787 divide Inf Inf -> NaN Invalid_operation
602 divx788 divide -1000 Inf -> -0E-398 Clamped
603 divx789 divide -Inf Inf -> NaN Invalid_operation
604 divx790 divide -1 Inf -> -0E-398 Clamped
605 divx791 divide -0 Inf -> -0E-398 Clamped
606 divx792 divide 0 Inf -> 0E-398 Clamped
607 divx793 divide 1 Inf -> 0E-398 Clamped
608 divx794 divide 1000 Inf -> 0E-398 Clamped
609 divx795 divide Inf Inf -> NaN Invalid_operation
611 divx800 divide -Inf -Inf -> NaN Invalid_operation
612 divx801 divide -Inf -1000 -> Infinity
613 divx802 divide -Inf -1 -> Infinity
614 divx803 divide -Inf -0 -> Infinity
615 divx804 divide -Inf 0 -> -Infinity
616 divx805 divide -Inf 1 -> -Infinity
617 divx806 divide -Inf 1000 -> -Infinity
618 divx807 divide -Inf Inf -> NaN Invalid_operation
619 divx808 divide -1000 Inf -> -0E-398 Clamped
620 divx809 divide -Inf -Inf -> NaN Invalid_operation
621 divx810 divide -1 -Inf -> 0E-398 Clamped
622 divx811 divide -0 -Inf -> 0E-398 Clamped
623 divx812 divide 0 -Inf -> -0E-398 Clamped
624 divx813 divide 1 -Inf -> -0E-398 Clamped
625 divx814 divide 1000 -Inf -> -0E-398 Clamped
626 divx815 divide Inf -Inf -> NaN Invalid_operation
628 divx821 divide NaN -Inf -> NaN
629 divx822 divide NaN -1000 -> NaN
630 divx823 divide NaN -1 -> NaN
631 divx824 divide NaN -0 -> NaN
632 divx825 divide NaN 0 -> NaN
633 divx826 divide NaN 1 -> NaN
634 divx827 divide NaN 1000 -> NaN
635 divx828 divide NaN Inf -> NaN
636 divx829 divide NaN NaN -> NaN
637 divx830 divide -Inf NaN -> NaN
638 divx831 divide -1000 NaN -> NaN
639 divx832 divide -1 NaN -> NaN
640 divx833 divide -0 NaN -> NaN
641 divx834 divide 0 NaN -> NaN
642 divx835 divide 1 NaN -> NaN
643 divx836 divide 1000 NaN -> NaN
644 divx837 divide Inf NaN -> NaN
646 divx841 divide sNaN -Inf -> NaN Invalid_operation
647 divx842 divide sNaN -1000 -> NaN Invalid_operation
648 divx843 divide sNaN -1 -> NaN Invalid_operation
649 divx844 divide sNaN -0 -> NaN Invalid_operation
650 divx845 divide sNaN 0 -> NaN Invalid_operation
651 divx846 divide sNaN 1 -> NaN Invalid_operation
652 divx847 divide sNaN 1000 -> NaN Invalid_operation
653 divx848 divide sNaN NaN -> NaN Invalid_operation
654 divx849 divide sNaN sNaN -> NaN Invalid_operation
655 divx850 divide NaN sNaN -> NaN Invalid_operation
656 divx851 divide -Inf sNaN -> NaN Invalid_operation
657 divx852 divide -1000 sNaN -> NaN Invalid_operation
658 divx853 divide -1 sNaN -> NaN Invalid_operation
659 divx854 divide -0 sNaN -> NaN Invalid_operation
660 divx855 divide 0 sNaN -> NaN Invalid_operation
661 divx856 divide 1 sNaN -> NaN Invalid_operation
662 divx857 divide 1000 sNaN -> NaN Invalid_operation
663 divx858 divide Inf sNaN -> NaN Invalid_operation
664 divx859 divide NaN sNaN -> NaN Invalid_operation
666 -- propagating NaNs
667 divx861 divide NaN9 -Inf -> NaN9
668 divx862 divide NaN8 1000 -> NaN8
669 divx863 divide NaN7 Inf -> NaN7
670 divx864 divide NaN6 NaN5 -> NaN6
671 divx865 divide -Inf NaN4 -> NaN4
672 divx866 divide -1000 NaN3 -> NaN3
673 divx867 divide Inf NaN2 -> NaN2
675 divx871 divide sNaN99 -Inf -> NaN99 Invalid_operation
676 divx872 divide sNaN98 -1 -> NaN98 Invalid_operation
677 divx873 divide sNaN97 NaN -> NaN97 Invalid_operation
678 divx874 divide sNaN96 sNaN94 -> NaN96 Invalid_operation
679 divx875 divide NaN95 sNaN93 -> NaN93 Invalid_operation
680 divx876 divide -Inf sNaN92 -> NaN92 Invalid_operation
681 divx877 divide 0 sNaN91 -> NaN91 Invalid_operation
682 divx878 divide Inf sNaN90 -> NaN90 Invalid_operation
683 divx879 divide NaN sNaN89 -> NaN89 Invalid_operation
685 divx881 divide -NaN9 -Inf -> -NaN9
686 divx882 divide -NaN8 1000 -> -NaN8
687 divx883 divide -NaN7 Inf -> -NaN7
688 divx884 divide -NaN6 -NaN5 -> -NaN6
689 divx885 divide -Inf -NaN4 -> -NaN4
690 divx886 divide -1000 -NaN3 -> -NaN3
691 divx887 divide Inf -NaN2 -> -NaN2
693 divx891 divide -sNaN99 -Inf -> -NaN99 Invalid_operation
694 divx892 divide -sNaN98 -1 -> -NaN98 Invalid_operation
695 divx893 divide -sNaN97 NaN -> -NaN97 Invalid_operation
696 divx894 divide -sNaN96 -sNaN94 -> -NaN96 Invalid_operation
697 divx895 divide -NaN95 -sNaN93 -> -NaN93 Invalid_operation
698 divx896 divide -Inf -sNaN92 -> -NaN92 Invalid_operation
699 divx897 divide 0 -sNaN91 -> -NaN91 Invalid_operation
700 divx898 divide Inf -sNaN90 -> -NaN90 Invalid_operation
701 divx899 divide -NaN -sNaN89 -> -NaN89 Invalid_operation
703 maxexponent: 999999999
704 minexponent: -999999999
706 -- Various flavours of divide by 0
707 divx901 divide 0 0 -> NaN Division_undefined
708 divx902 divide 0.0E5 0 -> NaN Division_undefined
709 divx903 divide 0.000 0 -> NaN Division_undefined
710 divx904 divide 0.0001 0 -> Infinity Division_by_zero
711 divx905 divide 0.01 0 -> Infinity Division_by_zero
712 divx906 divide 0.1 0 -> Infinity Division_by_zero
713 divx907 divide 1 0 -> Infinity Division_by_zero
714 divx908 divide 1 0.0 -> Infinity Division_by_zero
715 divx909 divide 10 0.0 -> Infinity Division_by_zero
716 divx910 divide 1E+100 0.0 -> Infinity Division_by_zero
717 divx911 divide 1E+1000 0 -> Infinity Division_by_zero
719 divx921 divide -0.0001 0 -> -Infinity Division_by_zero
720 divx922 divide -0.01 0 -> -Infinity Division_by_zero
721 divx923 divide -0.1 0 -> -Infinity Division_by_zero
722 divx924 divide -1 0 -> -Infinity Division_by_zero
723 divx925 divide -1 0.0 -> -Infinity Division_by_zero
724 divx926 divide -10 0.0 -> -Infinity Division_by_zero
725 divx927 divide -1E+100 0.0 -> -Infinity Division_by_zero
726 divx928 divide -1E+1000 0 -> -Infinity Division_by_zero
728 divx931 divide 0.0001 -0 -> -Infinity Division_by_zero
729 divx932 divide 0.01 -0 -> -Infinity Division_by_zero
730 divx933 divide 0.1 -0 -> -Infinity Division_by_zero
731 divx934 divide 1 -0 -> -Infinity Division_by_zero
732 divx935 divide 1 -0.0 -> -Infinity Division_by_zero
733 divx936 divide 10 -0.0 -> -Infinity Division_by_zero
734 divx937 divide 1E+100 -0.0 -> -Infinity Division_by_zero
735 divx938 divide 1E+1000 -0 -> -Infinity Division_by_zero
737 divx941 divide -0.0001 -0 -> Infinity Division_by_zero
738 divx942 divide -0.01 -0 -> Infinity Division_by_zero
739 divx943 divide -0.1 -0 -> Infinity Division_by_zero
740 divx944 divide -1 -0 -> Infinity Division_by_zero
741 divx945 divide -1 -0.0 -> Infinity Division_by_zero
742 divx946 divide -10 -0.0 -> Infinity Division_by_zero
743 divx947 divide -1E+100 -0.0 -> Infinity Division_by_zero
744 divx948 divide -1E+1000 -0 -> Infinity Division_by_zero
746 -- overflow and underflow tests
747 precision: 9
748 maxexponent: 999999999
749 minexponent: -999999999
750 divx951 divide 9E+999999999 +0.23456789012345E-0 -> Infinity Inexact Overflow Rounded
751 divx952 divide +0.100 9E+999999999 -> 1.111111E-1000000001 Inexact Rounded Underflow Subnormal
752 divx953 divide 9E-999999999 +9.100 -> 9.8901099E-1000000000 Inexact Rounded Underflow Subnormal
753 divx954 divide -1.23456789 9E+999999999 -> -1.3717421E-1000000000 Subnormal
754 divx955 divide -1.23456789012345E-0 9E+999999999 -> -1.3717421E-1000000000 Underflow Subnormal Rounded Inexact
755 divx956 divide -1.23456789012345E-0 7E+999999999 -> -1.7636684E-1000000000 Inexact Rounded Underflow Subnormal
756 divx957 divide 9E+999999999 -0.83456789012345E-0 -> -Infinity Inexact Overflow Rounded
757 divx958 divide -0.100 9E+999999999 -> -1.111111E-1000000001 Subnormal Inexact Rounded Underflow
758 divx959 divide 9E-999999999 -9.100 -> -9.8901099E-1000000000 Inexact Rounded Underflow Subnormal
760 -- overflow and underflow (additional edge tests in multiply.decTest)
761 -- 'subnormal' results now possible (all hard underflow or overflow in
762 -- base arithemtic)
763 divx960 divide 1e-600000000 1e+400000001 -> 1E-1000000001 Subnormal
764 divx961 divide 1e-600000000 1e+400000002 -> 1E-1000000002 Subnormal
765 divx962 divide 1e-600000000 1e+400000003 -> 1E-1000000003 Subnormal
766 divx963 divide 1e-600000000 1e+400000004 -> 1E-1000000004 Subnormal
767 divx964 divide 1e-600000000 1e+400000005 -> 1E-1000000005 Subnormal
768 divx965 divide 1e-600000000 1e+400000006 -> 1E-1000000006 Subnormal
769 divx966 divide 1e-600000000 1e+400000007 -> 1E-1000000007 Subnormal
770 divx967 divide 1e-600000000 1e+400000008 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
771 divx968 divide 1e-600000000 1e+400000009 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
772 divx969 divide 1e-600000000 1e+400000010 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
773 -- [no equivalent of 'subnormal' for overflow]
774 divx970 divide 1e+600000000 1e-400000001 -> Infinity Overflow Inexact Rounded
775 divx971 divide 1e+600000000 1e-400000002 -> Infinity Overflow Inexact Rounded
776 divx972 divide 1e+600000000 1e-400000003 -> Infinity Overflow Inexact Rounded
777 divx973 divide 1e+600000000 1e-400000004 -> Infinity Overflow Inexact Rounded
778 divx974 divide 1e+600000000 1e-400000005 -> Infinity Overflow Inexact Rounded
779 divx975 divide 1e+600000000 1e-400000006 -> Infinity Overflow Inexact Rounded
780 divx976 divide 1e+600000000 1e-400000007 -> Infinity Overflow Inexact Rounded
781 divx977 divide 1e+600000000 1e-400000008 -> Infinity Overflow Inexact Rounded
782 divx978 divide 1e+600000000 1e-400000009 -> Infinity Overflow Inexact Rounded
783 divx979 divide 1e+600000000 1e-400000010 -> Infinity Overflow Inexact Rounded
785 -- Sign after overflow and underflow
786 divx980 divide 1e-600000000 1e+400000009 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
787 divx981 divide 1e-600000000 -1e+400000009 -> -0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
788 divx982 divide -1e-600000000 1e+400000009 -> -0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
789 divx983 divide -1e-600000000 -1e+400000009 -> 0E-1000000007 Underflow Subnormal Inexact Rounded Clamped
790 divx984 divide 1e+600000000 1e-400000009 -> Infinity Overflow Inexact Rounded
791 divx985 divide 1e+600000000 -1e-400000009 -> -Infinity Overflow Inexact Rounded
792 divx986 divide -1e+600000000 1e-400000009 -> -Infinity Overflow Inexact Rounded
793 divx987 divide -1e+600000000 -1e-400000009 -> Infinity Overflow Inexact Rounded
795 -- Long operand overflow may be a different path
796 precision: 3
797 divx990 divide 1000 9.999E-999999999 -> Infinity Inexact Overflow Rounded
798 divx991 divide 1000 -9.999E-999999999 -> -Infinity Inexact Overflow Rounded
799 divx992 divide 9.999E+999999999 0.01 -> Infinity Inexact Overflow Rounded
800 divx993 divide -9.999E+999999999 0.01 -> -Infinity Inexact Overflow Rounded
802 -- check for double-rounded subnormals
803 precision: 5
804 maxexponent: 79
805 minexponent: -79
806 divx1001 divide 1.52444E-80 1 -> 1.524E-80 Inexact Rounded Subnormal Underflow
807 divx1002 divide 1.52445E-80 1 -> 1.524E-80 Inexact Rounded Subnormal Underflow
808 divx1003 divide 1.52446E-80 1 -> 1.524E-80 Inexact Rounded Subnormal Underflow
810 -- a rounding problem in one implementation
811 precision: 34
812 rounding: half_up
813 maxExponent: 6144
814 minExponent: -6143
815 -- Unbounded answer to 40 digits:
816 -- 1.465811965811965811965811965811965811966E+7000
817 divx1010 divide 343E6000 234E-1000 -> Infinity Overflow Inexact Rounded
819 precision: 34
820 rounding: half_up
821 maxExponent: 6144
822 minExponent: -6143
824 -- Examples from SQL proposal (Krishna Kulkarni)
825 precision: 7
826 divx1021 divide 1E0 1E0 -> 1
827 divx1022 divide 1E0 2E0 -> 0.5
828 divx1023 divide 1E0 3E0 -> 0.3333333 Inexact Rounded
829 divx1024 divide 100E-2 1000E-3 -> 1
830 divx1025 divide 24E-1 2E0 -> 1.2
831 divx1026 divide 2400E-3 2E0 -> 1.200
832 divx1027 divide 5E0 2E0 -> 2.5
833 divx1028 divide 5E0 20E-1 -> 2.5
834 divx1029 divide 5E0 2000E-3 -> 2.5
835 divx1030 divide 5E0 2E-1 -> 25
836 divx1031 divide 5E0 20E-2 -> 25
837 divx1032 divide 480E-2 3E0 -> 1.60
838 divx1033 divide 47E-1 2E0 -> 2.35
840 -- ECMAScript bad examples
841 rounding: half_down
842 precision: 7
843 divx1050 divide 5 9 -> 0.5555556 Inexact Rounded
844 rounding: half_even
845 divx1051 divide 5 11 -> 0.4545455 Inexact Rounded
847 -- payload decapitate
848 precision: 5
849 divx1055 divide sNaN987654321 1 -> NaN54321 Invalid_operation
851 -- Null tests
852 divx9998 divide 10 # -> NaN Invalid_operation
853 divx9999 divide # 10 -> NaN Invalid_operation