Search found 473 matches

by Petari
Tue Jul 31, 2018 9:18 pm
Forum: GAME ZONE
Topic: Harlequin
Replies: 0
Views: 225

Harlequin

https://youtu.be/vsW0WeISWdo This is likely most overlooked, underrated Atari ST game. Technically and playwise it is just brilliant. 23 large, diverse levels on 1 floppy, good scroll, even better music ... I guess that it is just too unusual for many people, and is hard for sure - needs some thinki...
by Petari
Tue Jul 31, 2018 9:02 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

Because blitter works always at 8 MHz no sense to cache it. I think that it was discussed here already. Surely not true 16 MHz, but I don't think that it was ever called so - by Atari. Compare it with Falcon: Falcon CPU can 16 MHz too, but cache is only some 512 bytes. Additionally, data bus is same...
by Petari
Tue Jul 31, 2018 8:01 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

exxos wrote:
Tue Jul 31, 2018 7:42 pm
OK I will try with blitter off.. but in case of caches, they not give reliable results, best to turn caches off to get raw MHz power of machine.
That's very old fashion thinking. Do it with your PC, and will see how much slower it will be . RAM speed was always lower than CPU speed since 199x .
by Petari
Tue Jul 31, 2018 7:33 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: TOS105 ROM
Replies: 59
Views: 4152

Re: TOS105 ROM

Not exactly in ROM, but this is how it boots. I kept v. # 1.04 - probably that's better than 1.05 - what may confusing some SW.

by Petari
Tue Jul 31, 2018 7:20 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

Why does the CPU only show 124% with cache OFF? Shouldn't it be close to 200% considering the frequency is 16MHz? What more test is taken into consideration besides integer divison? int-div is the only logical result... My V1 booster has ... http://www.exxoshost.co.uk/atari/last/v1booster/MK1BSTR_r...
by Petari
Tue Jul 31, 2018 7:15 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

The problem with your tests is that blitter is enabled. It works not faster at all when CPU is at 16 MHz - and that's the reason why speed gain is so low. Tests need to be done with blitter off. And we know that blitter is not much used in diverse SW. T206ROM_16MHz_GB3_BlitOff.png T206ROM_16MHz_GB6_...
by Petari
Tue Jul 31, 2018 5:57 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

I said clearly that I made tests with TOS 1.04 running in RAM - special RAMTOS version to say so . So, it accessing ROM not at all in tests above. GemBench SW (3 and 6) is just not able to detect it. I will now do more tests. And I'm sure that your Mega STE is OK. Just need some time to realize how ...
by Petari
Tue Jul 31, 2018 4:43 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

First to say that subjective impression after running plenty of SW at 16 MHz on Mega STE is that speed is better about 60 % in average . And running speed of usual SW is what really matters. It is much better than simple solutions with only faster CPU, no cache, where CPU works at 16 MHz only with i...
by Petari
Tue Jul 31, 2018 12:03 pm
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

Don't like your new Mega STE exxos ? There is solution to get rid off it :lol: I mean there is much more than + cache and 16 MHz CPU in compare to STE . For instance PSU is much-much better. Then better case, overall quality. I will not repeat what extra features and HW it has. It has switch for CPU...
by Petari
Tue Jul 31, 2018 9:49 am
Forum: BENCHMARKS
Topic: MSTE vs STE TOS206
Replies: 42
Views: 2484

Re: MSTE vs STE TOS206

68020 CPU is faster even at same clock than 68000 - many instructions execute in less clock cycles. But there are some, not much which are slower - like interrupt handling.
Ah, and there is simple solution for slow ROM TOS execution - run it from RAM :D I will benchmark it today afternoon ...