Search found 1435 matches

by Cyprian
Sun Feb 18, 2018 10:24 pm
Forum: Hardware
Topic: GEMDOS on Apple Lisa
Replies: 14
Views: 923

Re: GEMDOS on Apple Lisa

gilles504 wrote:(I also recompiled some lisa gemdos and gem sources with hatari + emutos + a gemdos hdd).

interesting, can you pls share that binaries?
by Cyprian
Sun Feb 18, 2018 1:07 am
Forum: Hardware
Topic: BAD DMA - Myth or fact ?
Replies: 96
Views: 26690

Re: BAD DMA - Myth or fact ?

dlfrsilver wrote:to give you an answer, i would say that all the STE made in 1989,1990 are plagued with this problem

I would not agree with that. My STE works flawless with CosmosEx and Ultrasatan. It is very early STE with separated BLiTTER.
by Cyprian
Tue Feb 13, 2018 9:34 am
Forum: Applications
Topic: Geneva and NeoDesk 4 Released as Donationware
Replies: 57
Views: 2641

Re: Geneva and NeoDesk 4 Released as Freeware

Great new.
Many thanks.
by Cyprian
Sat Feb 10, 2018 6:42 pm
Forum: Coding
Topic: STE - mouse pointer
Replies: 8
Views: 953

Re: STE - mouse pointer

BSR means "jump to subroutine", RTS means "back from subroutine". Those instructions use a stack (and modify stack registers USP/ SSP) for preserving SR and PC registers. An equivalent of BGT is just JMP (conditional one) instruction. Those instructions don't touch a stack (USP/ ...
by Cyprian
Fri Feb 09, 2018 4:11 pm
Forum: News & Announcements
Topic: New game released : Supa Zazai Da
Replies: 6
Views: 858

Re: New game released : Supa Zazai Da

great job
by Cyprian
Sat Jan 27, 2018 10:41 pm
Forum: Demos - General
Topic: Gx4000 demo
Replies: 17
Views: 1463

Re: Gx4000 demo

that song sounds so cool in stereo
by Cyprian
Tue Jan 23, 2018 11:31 pm
Forum: Games - General
Topic: Have you seen this? New games from Templeton CVSD?
Replies: 8
Views: 740

Have you seen this? New games from Templeton CVSD?

************************************************************ * SUPA ZAZAI DA is an oldschool scoring games mixing * * 8bits horizontal shoot'em up and manic shooter style! * * To maximize your score, pick up the green particles * * and beware the red. * * To reach the "end", you must dest...
by Cyprian
Sun Jan 21, 2018 2:12 am
Forum: MIDI Software and Hardware
Topic: C-Lab Export: unidentified IC
Replies: 34
Views: 1380

Re: C-Lab Export: unidentified IC

good to know,
maybe would be possible to connect two STs with 307200 bps
by Cyprian
Sun Jan 21, 2018 2:11 am
Forum: Chat forum [ENG]
Topic: Atarian intelligence test.
Replies: 24
Views: 1022

Re: Atarian intelligence test.

Atarieterno wrote:Image

that comic is a bit misleading.
Atari was sold to Warner Inc in 1976
Therefore 'the real Atari' was 1972-1976, Warner's Atari was 1976-1984, Tramiel's Atari 1984-1996 etc.
by Cyprian
Sun Jan 21, 2018 1:29 am
Forum: MIDI Software and Hardware
Topic: C-Lab Export: unidentified IC
Replies: 34
Views: 1380

Re: C-Lab Export: unidentified IC

As far as I remember MIDI OUT needs exactly 31250 bps, and ST RS port has max 19200 bps. Therefore how does it work?
In additional, I see there three MIDI OUTs, 3 x 31250 = 93750 bps. Is it possible to reach 93750 through 19200 bps pipe?
by Cyprian
Fri Jan 19, 2018 11:35 am
Forum: Coding
Topic: STE - mouse pointer
Replies: 8
Views: 953

Re: STE - mouse pointer

I've just reread my post, oh gosh it looks terrible... Instead " I changed "logical screen" address, try to modify also "physical screen" " should be " You changed "physical screen" address, try to modify also "logical screen" " "logic...
by Cyprian
Thu Jan 18, 2018 9:20 pm
Forum: Coding
Topic: STE - mouse pointer
Replies: 8
Views: 953

Re: STE - mouse pointer

I guess the OS is still painting a mouse pointer on the old 'screen'.
I changed "logical screen" address, try to modify also "physical screen". Below you can find Setscreen description:
http://toshyp.atari.org/en/Screen_funct ... #Setscreen
by Cyprian
Wed Jan 17, 2018 12:31 am
Forum: CosmosEx
Topic: Resolved: CosmosEx ACSI - issue - "bad" Hans
Replies: 4
Views: 1225

Re: CosmosEx ACSI - issue - "bad" Hans

Issue resolved. I've just upgraded RPI SD card to the latest ON: ce_raspbian_2017-01-03.
I wasn't aware about this, and there were no any info in a config tool. Would be cool to add something like that: "There is a new OS for CosmosEx. Update SD card from url..."
by Cyprian
Sun Jan 14, 2018 11:32 am
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

actually bclr.b #0,$fffffa0f.w is not needed. Switch MFP into "Automatic End-interrupt mode", and you can skip that bclr.b. -------+-----+-----------------------------------------------------+---------- $FFFA17|byte |Vector Register BIT 7 6 5 4 3 . . .|R/W | |Vector Base Offset -----------...
by Cyprian
Sat Jan 13, 2018 7:05 pm
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

have you deactivated other interrupts?
by Cyprian
Sat Jan 13, 2018 6:47 pm
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

Foxie wrote:Just running an hsync interrupt with rte takes 20% of the CPU time,

Are you sure about that 20%?
Entering an interrupt takes 44 cycles, RTE 20 cycles, it is 64 cycles per scanline (512 cycles).

64 / 512 = 12,5%
by Cyprian
Sat Jan 13, 2018 5:34 pm
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

What's the CPU cost of saving/restoring registers too? What's the CPU cost of 200 timer b interrupts that just RTE? I did a dister with timer b and hardscroll but it must have been 20 years or so ago :D I have a figure in mind of around 20% CPU for that. Evil's example takes 12%: Timer_B_HBL: move....
by Cyprian
Sat Jan 13, 2018 5:32 pm
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

What's the CPU cost of saving/restoring registers too? What's the CPU cost of 200 timer b interrupts that just RTE? I did a dister with timer b and hardscroll but it must have been 20 years or so ago :D I have a figure in mind of around 20% CPU for that. Evil's example takes 12%: Timer_B_HBL: move....
by Cyprian
Fri Jan 12, 2018 7:45 pm
Forum: Coding
Topic: STE horizontal hardware scroll
Replies: 28
Views: 1994

Re: STE horizontal hardware scroll

The way around it is a little CPU-hungry but by setting the screen address counter each line, you can have infinite width (no need to mess with the lw-register at all). Can you please explain it more as I do not get this trick. by changing the screen address every line with TimerB or sync code (Evi...
by Cyprian
Mon Jan 01, 2018 10:53 pm
Forum: CosmosEx
Topic: Resolved: CosmosEx ACSI - issue - "bad" Hans
Replies: 4
Views: 1225

Re: CosmosEx ACSI - issue

Teraz tylko z drugiej ręki. Chyba że Lotharek się podejmnie produkcji.

Second-hand only, or to convince Lotharek to produce it.
by Cyprian
Mon Jan 01, 2018 10:45 pm
Forum: CosmosEx
Topic: Resolved: CosmosEx ACSI - issue - "bad" Hans
Replies: 4
Views: 1225

Resolved: CosmosEx ACSI - issue - "bad" Hans

Hi All, my Cosmo began to behave strangely. There is no Drive O on the desktop. WiFi Connection isn't stable anymore. Web interface very often shows me a timeout. Hans chip has status "Bad": Cosmo_WEB.png After that, I've updated Cosmo from SSH and unfortunately nothing has changed. The da...
by Cyprian
Mon Jan 01, 2018 1:34 pm
Forum: Chat forum [ENG]
Topic: We redesign the STE
Replies: 69
Views: 3086

Re: We redesign the STE

+1 for Joska
by Cyprian
Sun Dec 31, 2017 10:37 pm
Forum: Demos - General
Topic: Gx4000 demo
Replies: 17
Views: 1463

Re: Gx4000 demo

now works fine, cool screen

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