Search found 457 matches

by BlankVector
Tue Jan 07, 2020 7:48 pm
Forum: C / PASCAL etc.
Topic: GCC 9.2.0 / binutils 2.33.1
Replies: 3
Views: 1146

Re: GCC 9.2.0 / binutils 2.33.1

Nice effort!
by BlankVector
Tue Jan 07, 2020 7:45 pm
Forum: Hardware
Topic: IDE autoboot for TOS 1.04
Replies: 12
Views: 1809

Re: IDE autoboot for TOS 1.04

Very useful hack!
by BlankVector
Sun Dec 22, 2019 2:39 pm
Forum: C / PASCAL etc.
Topic: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?
Replies: 21
Views: 2856

Re: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?

As long as TOS allocates BASEPAGE (hence TEXT segment) on 2-byte only, there is no way to get better alignment for code, static data and static variables. Whatever method is used. The best you can do is to dynamically allocate buffers and manually adjust addresses for your alignment needs. That bein...
by BlankVector
Tue Dec 17, 2019 3:19 pm
Forum: C / PASCAL etc.
Topic: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?
Replies: 21
Views: 2856

Re: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?

Alt-RAM (a.k.a. FastRAM, TT-RAM) is the default if it is available on the machine, and if there is some free space.
by BlankVector
Tue Dec 17, 2019 12:51 pm
Forum: C / PASCAL etc.
Topic: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?
Replies: 21
Views: 2856

Re: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?

Is this fixed with EmuTOS? I mean the 4 bytes alignment for the TEXT section ? Until 0.9.12, EmuTOS alignment for TEXT section was 4 bytes. But for the sake of compatibility with an obscure program called Mortimer, EmuTOS has recently changed to a 2-byte alignment in ST-RAM like Atari TOS. However,...
by BlankVector
Tue Dec 17, 2019 10:22 am
Forum: C / PASCAL etc.
Topic: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?
Replies: 21
Views: 2856

Re: Does the 2 bytes alignment limitation on m68k-atari-mint creates performance hazard?

Unfortunately Atari TOS aligns TEXT segment on 2-byte only. So there is no way to implement __attribute__ ((aligned(4))) on TOS.
And indeed, this will introduce random performance change on systems affected by 16-bit/32-bit alignment. I don't know how much, though.
by BlankVector
Thu Oct 31, 2019 4:53 pm
Forum: C / PASCAL etc.
Topic: SDL 1.2 with m68k-atari-mint
Replies: 4
Views: 1730

Re: SDL 1.2 with m68k-atari-mint

PmDoom uses SDL. On Falcon, it works on both plain TOS or MiNT. Either full-screen or windowed.
http://pmandin.atari.org/fr/index.php?p ... -game-doom
by BlankVector
Tue Oct 29, 2019 10:40 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

Third lesson : save and restore the video mode.

by BlankVector
Fri Oct 18, 2019 10:10 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

Very nicely & concisely done, I especially like how you show a problem (e.g. colors wrong) and fixing it. Thanks :D Current program is missing resolution & palette saving at start and restoring them before exit. You are right. This will be the topic of the next video. I've almost finished w...
by BlankVector
Sat Oct 12, 2019 4:03 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

Many thanks for all these kind words :D
by BlankVector
Sat Oct 12, 2019 12:52 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

Second episode : display a picture.

by BlankVector
Wed Oct 09, 2019 12:10 am
Forum: Hatari
Topic: Minimal multitask configuration for Hatari
Replies: 201
Views: 92325

Re: Minimal multitask configuration for Hatari

Some QED versions may have issues if the USERDEF stack is very small, like in plain TOS/EmuTOS. No such thing happens with XaAES. I have no idea if this can cause trouble in MyAES. This could also be an EmuTOS bug, of course.
by BlankVector
Thu Sep 26, 2019 1:12 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

Excellent tutorial. Thanks :D How did you make all those pictures fade into the video? Looks like a lot of work... I use a video editing tool for the main timeline, Steem for emulation, CamStudio for screen capture, ffmpeg for video conversion, Audacity for sound editing... Indeed, that's huge work...
by BlankVector
Thu Sep 26, 2019 12:21 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

mikro wrote:The funny thing is that this tutorial has shown me for the first time in my 20+ year usage of Devpac that I can run my programs without GEM via that checkbox :D

Trust me or not, that's exactly the same for me :D
by BlankVector
Wed Sep 25, 2019 7:35 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Re: Assembler video tutorials on Vretrocomputing

But.. I'd like to see it progress into more than just explaining branching and looping, but to how to actually create a useful program I don't plan to explain branching and looping, that would be for basic and boring 68000 lessons. I don't plan to do useful stuff either, as I generally get fun from...
by BlankVector
Wed Sep 25, 2019 4:14 pm
Forum: 680x0
Topic: Assembler video tutorials on Vretrocomputing
Replies: 21
Views: 5753

Assembler video tutorials on Vretrocomputing

Hello, here is the first episode of a series of assembler tutorials.
And if you like it, there will be other ones!
French speech, but English subtitles are available.

by BlankVector
Mon Aug 26, 2019 6:41 am
Forum: Demos - General
Topic: "We Were @" demo question
Replies: 19
Views: 5240

Re: "We Were @" demo question

I was about to release a 2MiB version of "We Were @" demo . This version is on my disk for a while. But I had a new idea: I think I can do a 1MiB version, without music. I want to know if I should do it or not. Do it and add a message at the beginning : "Please install 4MB for the re...
by BlankVector
Tue Jul 30, 2019 1:52 pm
Forum: CT60 / CT63 Area
Topic: 68080 Apollo Core
Replies: 101
Views: 23169

Re: 68080 Apollo Core

PeterS wrote:For instance I suspect that an ST demo might not work on an STE.

STe compatibility is extremely high with ST software, including with demos.
by BlankVector
Wed Jul 24, 2019 3:42 pm
Forum: Professionals
Topic: EasyMiNT 1.9 source code
Replies: 17
Views: 4675

Re: EasyMiNT 1.9 source code

Great initiative :cheers:
by BlankVector
Wed Jul 10, 2019 6:22 pm
Forum: Demos - General
Topic: MOTUS by SMFX - a new demo for Atari ST
Replies: 16
Views: 6328

Re: MOTUS by SMFX - a new demo for Atari ST

Sublime!
by BlankVector
Sun Jun 23, 2019 8:38 am
Forum: HxC Floppy Emulator
Topic: HxC Firmware for Gotek updates.
Replies: 20
Views: 21567

Re: HxC Firmware for Gotek updates.

Crazy 8)
by BlankVector
Sat Jun 08, 2019 8:17 pm
Forum: News & Announcements
Topic: EmuTOS 0.9.11
Replies: 9
Views: 5890

Re: EmuTOS 0.9.11

I wonder how EmuTOS does handle the system clock on a Falcon with faulty Dallas chip? Original TOS trash the time and date when returning from an application. What dos EmuTOS do? FreeMint keeps date and time properly in this case. You should give a try, if you can :wink: Or ask Hatari developers to...

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