Search found 1705 matches

by slingshot
Thu Aug 06, 2020 10:50 am
Forum: MiST
Topic: Work on the Minimig core?
Replies: 392
Views: 73134

Re: Work on the Minimig core?

The TG68k should not really run at 112 MHz, however the multicycle paths in the sdc mostly solve it. Converting to 28 MHz is a bit challenging if one wants the same performance, since the signals between the SDRAM controller - cache (which will remain at 112) and the CPU (which will become 28) shou...
by slingshot
Thu Aug 06, 2020 9:42 am
Forum: MiST
Topic: MiST Memory
Replies: 6
Views: 183

Re: MiST Memory

Yeah, it doesn't worth to go with an uncertain source. Also doesn't worth to hunt for those Microns. Any recent SDRAM chip should do the job which is in specs. Mine MiST has a Hynix, btw.
by slingshot
Wed Aug 05, 2020 2:01 pm
Forum: MiST
Topic: Archimedes video modes
Replies: 7
Views: 144

Re: Archimedes video modes

vebxenon wrote:
Wed Aug 05, 2020 1:27 pm

This software requires an special hardware, isn't it?
Everything should be implemented in the core (except the sync polarity switch).
by slingshot
Wed Aug 05, 2020 12:50 pm
Forum: MiST
Topic: Work on the Minimig core?
Replies: 392
Views: 73134

Re: Work on the Minimig core?

ijor wrote:
Wed Aug 05, 2020 12:11 pm
I wasn't really talking specifically about this core, not even specifically about the MiST. Sadly, it became quite common practice to release cores not meeting timing.
And with loads of async logic.
by slingshot
Wed Aug 05, 2020 12:48 pm
Forum: MiST
Topic: Archimedes video modes
Replies: 7
Views: 144

Re: Archimedes video modes

by slingshot
Wed Aug 05, 2020 8:28 am
Forum: MiST
Topic: Archimedes video modes
Replies: 7
Views: 144

Re: Archimedes video modes

If you want good performance and not letterboxed display, then it's the best to choose 15kHz modes (monitor type 0 or 1). Btw, it's the only core where you can play Alone in the Dark, and it runs very well.
by slingshot
Wed Aug 05, 2020 7:51 am
Forum: MiST
Topic: Work on the Minimig core?
Replies: 392
Views: 73134

Re: Work on the Minimig core?

It is too bad that cores that don't meet timing are publicly released. I understand from what you are saying this is not your fault, and I know it is not slingshot's fault either. But I believe that is a very bad thing to do. Not only that the core, of course, might fail or misbehave. All those cor...
by slingshot
Mon Aug 03, 2020 8:29 pm
Forum: MiST
Topic: USB-RTC
Replies: 7
Views: 265

Re: USB-RTC

8bitguy1 wrote:
Mon Aug 03, 2020 7:12 pm
I'd love one if you'll ship it to Canada.
According to the post's webpage, sending to Canada or to Portugal are the same price (almost 10 EUR for a registered letter) - maybe the surprise will come when I'll try to send.
by slingshot
Mon Aug 03, 2020 11:10 am
Forum: MiST
Topic: USB-RTC
Replies: 7
Views: 265

Re: USB-RTC

Good!
I'm waiting for a cheap ABS plastic box, the device should fit into it perfectly. If not, then there'll be a little job for the Dremel :)
by slingshot
Fri Jul 31, 2020 7:33 pm
Forum: MiST
Topic: USB-RTC
Replies: 7
Views: 265

USB-RTC

As some of you might already notice, the firmware got more generic support for @MasterOfGizmo's USB-RTC gadget. Currently the Minimig-AGA, both ST cores and Archie can take advantage of this device. I've built a version of the clock, and works well. Here's the prototype on a breadboard (the Arduino ...
by slingshot
Fri Jul 31, 2020 10:53 am
Forum: MiST
Topic: MSX1 from Fabio Belavenuto for Mist and SiDi
Replies: 14
Views: 314

Re: MSX1 from Fabio Belavenuto for Mist and SiDi

C'mon, it's an MSX1, the SDRAM bandwith requirements are nowhere near to the SNES. The SDRAM controller in SNES uses a 3-way bank interleaving, and runs at 126MHz. The MSX1's SDRAM controller should work even at 32MHz, but if it runs above 64MHz, then there is something very inefficiently implemente...
by slingshot
Fri Jul 31, 2020 8:50 am
Forum: MiST
Topic: MSX1 from Fabio Belavenuto for Mist and SiDi
Replies: 14
Views: 314

Re: MSX1 from Fabio Belavenuto for Mist and SiDi

rondc wrote:
Fri Jul 31, 2020 8:38 am
Thanks slinghot !
Let's see what we can do.

Where can we find some SDC documentation in order to learn how to configure ?.

Regards.
Quartus handbook maybe. The input/output part of the .sdc is very unintuitive, just copy-paste the SDRAM part from another recent core (use the correct clock).
by slingshot
Fri Jul 31, 2020 7:54 am
Forum: MiST
Topic: MSX1 from Fabio Belavenuto for Mist and SiDi
Replies: 14
Views: 314

Re: MSX1 from Fabio Belavenuto for Mist and SiDi

ManuFerHI ! Hello !!! My MISTica has the same RAM than classic MiSTs and may be what you said about the speed of the RAM. I have been trying to synthesize several approaches and there was not success, still not working. Maybe Gyurco could do a couple of tries since he has a lot of experience with M...
by slingshot
Thu Jul 30, 2020 3:47 pm
Forum: MiST
Topic: Work on the Minimig core?
Replies: 392
Views: 73134

Re: Work on the Minimig core?

vebxenon wrote:
Thu Jul 30, 2020 3:02 pm
Do you know why some games in AGA mode have glitches? For example, SF2 on Whdload.
I don't know (and I don't know really much about Amigas). Did you read this?
viewtopic.php?p=398448#p398448
by slingshot
Thu Jul 30, 2020 12:16 pm
Forum: MiST
Topic: Work on the Minimig core?
Replies: 392
Views: 73134

Re: Work on the Minimig core?

Yes, I've adapted both for 8-word bursts, so in the best case scenario it can now transfer data every cycle. The cache was surprisingly easy to adapt, and the SDRAM controller's still recognisable as the same one. The biggest change is that I now delay the CAS phase of writes by a few cycles, so th...
by slingshot
Sun Jul 26, 2020 5:15 pm
Forum: MiST
Topic: It's no more a MiSTery
Replies: 397
Views: 73885

Re: It's no more a MiSTery

I've already added to Minimig-MiST and the Archie cores, too.
by slingshot
Sat Jul 25, 2020 5:16 pm
Forum: MiST
Topic: It's no more a MiSTery
Replies: 397
Views: 73885

Re: It's no more a MiSTery

For the new release: https://github.com/mist-devel/mist-binaries/blob/master/cores/mistery/MiSTery-200725.rbf I've added USB-RTC support (https://github.com/mist-devel/mist-board/wiki/UsbRtc) It's a nice little device, which is not only useful for MiST, but can be used in RPis and other gadgets, whe...
by slingshot
Sat Jul 25, 2020 5:11 pm
Forum: MiST
Topic: MiST core and firmware changelog
Replies: 180
Views: 135779

Re: MiST core and firmware changelog

firmware_200725
===============
- Fix long-standing ADF write corruption bug
- Generic USB-RTC support
by slingshot
Sat Jul 25, 2020 5:10 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

breiztiger wrote:
Fri Jul 24, 2020 5:22 pm
thanks you

can you push your new code to MiSTer ?

we lack of playcity on MiSTer side :cheers:
Then there's a reason to get a MiST :)
I'm sure somebody will port it.
by slingshot
Thu Jul 23, 2020 6:49 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

Ok, so nobody found any serious issues (if anybody tried it...), I've uploaded to mist-binaries:
https://github.com/mist-devel/mist-bina ... mstrad_alt
by slingshot
Tue Jul 21, 2020 5:05 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

Is it possible to implement the Dandanator? In the web there is a VHDL file. http://dandare.es/Proyectos_Dandare/CPC_Dandanator%21_Mini.html http://www.dandare.es/Descargas_CPC/CPC%20Dandanator%20DevDoc.zip Is there any game which works only with this cartridge? Or what would be the benefit? As I s...
by slingshot
Mon Jul 20, 2020 8:01 am
Forum: MiST
Topic: It's no more a MiSTery
Replies: 397
Views: 73885

Re: It's no more a MiSTery

Good to see you only found one difference in 40 disks :)
The answer is easy: the "good things" show that the GLUE+MMU combo is created after the real schematics, the other flickering one that the MFP is a functional recreation, which might still has imperfections. However not much, I think.
by slingshot
Sun Jul 19, 2020 7:25 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

Here's a test version with major changes in the FDC. I'm interested in original disk compatibility improvements/regressions. Also in demo loading improvements/stepbacks. E.g. The Demo now loads really fast.

Spoiler: it has Playcity support, too.
by slingshot
Sun Jul 19, 2020 3:33 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

breiztiger wrote:
Sun Jul 19, 2020 3:06 pm
samdisk 3.8.8
Finally I could make it work by shifting the sector data start from Trackinfo+0x100 to Trackinfo+0x200.
by slingshot
Sun Jul 19, 2020 2:36 pm
Forum: MiST
Topic: Amstrad CPC 6128/664 (NEW)
Replies: 156
Views: 40850

Re: Amstrad CPC 6128/664 (NEW)

puffy's saga sector 1D track 01.jpg Strange, when Caprice reads that sector, it starts from the 0x100 offset (the E5's at the start are skipped). I think it's somewhat related to this non-standard EDSK usage. Maybe if >29 sectors/track, it automatically expands the trackinfo block with 128 bytes. W...

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