exxos's Atari, Amiga & retro forum

Yeah that looks like the figures I usually get

I would say the TOS in STfm has slower blitting functions than in STe.
Bear in in mind STfm TOS has less space than STe's one - 192k vs 256k.
Atari did some optimisation in order to fit the TOS in 192k (like using LineF functions), which are not present in STe TOS. It could have an impact onto performance figures.

The BLiTTER should has exactly the same timing in ST and STe. The only difference is Mega STE, where due to cache, every blitter pass has additional bus mastering cycle.

@Cyprian We're talking about TOS206 on STFM ...

PaulJ wrote: 31 Dec 2019 22:14 Numbers look ok since this mega 4 is running @ 32.04 instead of 32.08. Also numbers suck like your seeing if acc's and programs are in startup. This is with XBOOT only, no acc's.

So far then, only my board is "slow" I guess have to wait until someone can test a STFM with TOS206.

Which board do you have exxos?

PhilC wrote: 31 Dec 2019 23:57 Which board do you have exxos?

70789 rev F2

exxos wrote: 31 Dec 2019 20:57 @PaulJ Do you have a STFM you could run TOS206 and blitter on ?

Is it the MM9092 blitter ?

Yes its a MM9092 in the H4 and MEGA.

exxos wrote: 31 Dec 2019 23:40 @Cyprian We're talking about TOS206 on STFM ...

ok,
can you do some tests?
I could provide necessary PRG files.

Cyprian wrote: 01 Jan 2020 00:41 ok,
can you do some tests?
I could provide necessary PRG files.

Yes.

exxos wrote: 31 Dec 2019 23:41 So far then, only my board is "slow" I guess have to wait until someone can test a STFM with TOS206.

So this is one of my STFms with TOS 2.06 and Blitter: No slowdown! (The 99% in one test can surely be attributed to measurement tolerances.)