Pentium 75-100 Mhz

Reply 20 of 23, by fgenesis

Posted on 2021-08-04, 00:36

fgenesis Offline

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Rank: Newbie
Posts: 39
Joined: 2021-04-20, 17:21

Okay, some random runs incoming. I've run this from a boot floppy on some machines (as: fpu486.exe > fpu.txt) so i hope you made sure that floppy i/o when outputting each line doesn't impact the timing.

Intel 386 @ 25 MHz, with Cyrix FasMath coprocessor chip also @ 25 MHz:
(Yessss it actually runs on a 386, good job ;D)

1FPU512 486 v0.34
2----------------
3 64 53069.448763 
4 128 26657.252362 
5 192 17798.900124 
6 256 13359.474571 
7 320 10692.530310 
8 384 8913.194965 
9 448 7641.568234 
10 512 6687.479930 
11----------------
12
13 Test Value: OK
14
15 sec(s) 27.902000
16
17 Cyrix    5x86  100 MHz  ( FPU )  x 0.053150
18 Intel    P54C   75 MHz  ( FPU )  x 0.043330
19 AMD      K6-2  450 MHz  ( FPU )  x 0.007885
20 Intel    PIII  450 MHz  ( FPU )  x 0.005914

Intel Pentium 1 @ 133 MHz:

1FPU512 486 v0.34
2----------------
3 64 53069.448763 
4 128 26657.252362 
5 192 17798.900124 
6 256 13359.474571 
7 320 10692.530310 
8 384 8913.194965 
9 448 7641.568234 
10 512 6687.479930 
11----------------
12
13 Test Value: OK
14
15 sec(s) 0.659000
16
17 Cyrix    5x86  100 MHz  ( FPU )  x 2.250379
18 Intel    P54C   75 MHz  ( FPU )  x 1.834598
19 AMD      K6-2  450 MHz  ( FPU )  x 0.333839
20 Intel    PIII  450 MHz  ( FPU )  x 0.250379

Now, the P1 @ 75 MHz you actually wanted:

1FPU512 486 v0.34
2----------------
3 64 53069.448763 
4 128 26657.252362 
5 192 17798.900124 
6 256 13359.474571 
7 320 10692.530310 
8 384 8913.194965 
9 448 7641.568234 
10 512 6687.479930 
11----------------
12
13 Test Value: OK
14
15 sec(s) 1.209000
16
17 Cyrix    5x86  100 MHz  ( FPU )  x 1.226634
18 Intel    P54C   75 MHz  ( FPU )  x 1.000000
19 AMD      K6-2  450 MHz  ( FPU )  x 0.181969
20 Intel    PIII  450 MHz  ( FPU )  x 0.136476

And lastly an Intel P3 @ exactly 1 GHz:

1FPU512 486 v0.34
2----------------
3 64 53069.448763 
4 128 26657.252362 
5 192 17798.900124 
6 256 13359.474571 
7 320 10692.530310 
8 384 8913.194965 
9 448 7641.568234 
10 512 6687.479930 
11----------------
12
13 Test Value: OK
14
15 sec(s) 0.055000
16
17 Cyrix    5x86  100 MHz  ( FPU )  x 26.963636
18 Intel    P54C   75 MHz  ( FPU )  x 21.981818
19 AMD      K6-2  450 MHz  ( FPU )  x 4.000000
20 Intel    PIII  450 MHz  ( FPU )  x 3.000000

If you need full CPU specs tell me which hardware info thingy to run and you'll get the output of that, too

I also have a P1 @ 100 MHz and a bunch of other chips stowed away but no time atm to put together a machine to run those....
Hope this was helpful regardless.

EDIT: Why don't you just attach the files to your posts? MEGA is for huge warez, not tiny files like this 😜
(Consider the craptons of JS, CSS and web noodles loaded only to transfer your tiny file. pretty sure that was larger than DOOM!)

Reply 21 of 23, by millQ

Posted on 2021-08-04, 13:59

millQ Offline

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Rank: Newbie
Posts: 16
Joined: 2021-07-27, 19:46

Thanks!
I made a more timing accurate version (P7) for faster CPU's (ms) .

Attachments

Filename

FPU512P7.7z

File size

14.11 KiB

Downloads

40 downloads

File license

Public domain

Last edited by millQ on 2021-08-20, 13:07. Edited 2 times in total.

Reply 22 of 23, by millQ

Posted on 2021-08-11, 00:22

millQ Offline

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Rank: Newbie
Posts: 16
Joined: 2021-07-27, 19:46

Can you run P7 version on 1Ghz if you have time 😉

Last edited by millQ on 2021-08-20, 13:07. Edited 1 time in total.

Reply 23 of 23, by millQ

Posted on 2021-08-11, 00:26

millQ Offline

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Rank: Newbie
Posts: 16
Joined: 2021-07-27, 19:46

Caluser2000 wrote on 2021-07-31, 03:28:

I'll give them a shot on one of my 486DX2/66 or 486DX2/50 and see how they go...

The result for amd 486dx2/66 was 3,428 seconds

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Reply 20 of 23, by fgenesis

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