Hello.
About the Atari-Forum Wiki.
I've been hosting the read-only mirror for a while now.
If the original Wiki cannot be fixed, I could grant access to some users if they want to add content to my copy.
(note that my snapshot was done before the original went back online in 2020)
Search found 110 matches
- Sun Nov 21, 2021 10:35 pm
- Forum: Website Discussions
- Topic: The preservation of forum knowledge
- Replies: 11
- Views: 1875
- Mon Sep 28, 2020 6:35 pm
- Forum: Wiki Discussions
- Topic: Wiki website problem
- Replies: 25
- Views: 11926
Re: Wiki website problem
Until the wiki is fixed, I have re-activated the read-only mirror which was setup in 2018:
https://temlib.org/AtariForumWiki/index.php/Main_Page
https://temlib.org/AtariForumWiki/index.php/Main_Page
- Wed May 13, 2020 5:49 pm
- Forum: MiSTer
- Topic: X68000 core
- Replies: 122
- Views: 68330
Re: X68000 core
SASI HDD images [...] . Hello. I've made a preliminary version of the X68000 core that directly uses MiSTer framework for HDD (instead of the NIOS software and second SD card). Select the disk image then "Hard Disk : MiSTer" http://temlib.org/pub/mister/release-F68kMiSTer.rbf http://temli...
Re: Introduction and first Question (AO486)
No luck, sorry! AO486 is afaik the only core that needs a paying version of Quartus to generate the .RBF, because it uses some non-free IPs blocks in the Qsys project. You can still generate a .BIT file and directly download the FPGA. There are the IPs below : - ALTERA_CLOCK_BRIDGE (x2) - ALTERA_ADD...
- Sat Apr 18, 2020 12:22 pm
- Forum: MiSTer
- Topic: Custom Video Modes Test Thread
- Replies: 103
- Views: 57119
Re: Custom Video Modes Test Thread
MemTest always have problem still with Vga_scaler=0 If you set vga_scaler=0, then the video on the analog IO board is the native output of the core and videomode is used for the HDMI output only. if you set vga_scaler=1, the scaler output is redirected to the analog IO board. Did you try vga_scaler...
- Sat Apr 18, 2020 12:31 am
- Forum: MiSTer
- Topic: Custom Video Modes Test Thread
- Replies: 103
- Views: 57119
Re: Custom Video Modes Test Thread
Hi guys..Great Thread! Thanks everyone... When the scaler is disabled, the cores native refresh frequency is used, e.g. 50Hz or 60Hz for game consoles. AO486 generates signals suitable for VGA monitors, which higher refresh rate and horizontal frequency. Most preset video modes expect high resoluti...
- Fri Apr 03, 2020 11:50 pm
- Forum: MiSTer
- Topic: Custom Video Modes Test Thread
- Replies: 103
- Views: 57119
Re: Custom Video Modes Test Thread
i didn't explore DDC wiring more precise. May be it's possible to get the EDID, so at least in Menu core it can be added if possible. I've tried to get access to display EDID through a serial port to I2C bridge added to the Menu core. https://github.com/Grabulosaure/Menu_MiSTer http://temlib.org/pu...
- Thu Feb 27, 2020 10:10 pm
- Forum: MiSTer
- Topic: Newbie with FPGA and MiSTer dev question
- Replies: 22
- Views: 9095
Re: Newbie with FPGA and MiSTer dev question
For tests, if you already generate a video output (with positive sync), this code can insert on the top of the screen 2 lines of hex numbers, which can be sometimes useful for debugging: ovo.vhd -------------------------------------------------------------------------------- -- Overlay -------------...
- Mon Feb 24, 2020 9:30 pm
- Forum: MiSTer
- Topic: Custom Video Modes Test Thread
- Replies: 103
- Views: 57119
Re: Custom Video Modes Test Thread
whats best for 1280 by 1024? Standard 1280x1024 @60Hz ? video_mode=4 That's in mister.ini help comments. There is also the possibility of dumping the screen EDID with a PC and create a mode matching exactly one of the screen supported resolutions. This would be useful to find modes that my monitor ...
- Sat Feb 08, 2020 12:41 pm
- Forum: MiSTer
- Topic: Suggested feature: "Time Sleuth" MiSTer core to test display latency
- Replies: 4
- Views: 3145
Re: Suggested feature: "Time Sleuth" MiSTer core to test display latency
This could also be a nice use case for the serial io port on the io board. A usb 3.0 cable spliced to one of these sensors and the end user just needs to plug it in and run a measurement core. WARNING There is a 5V power supply on the IO USB connector. The FPGA inputs only support up 3.3V LVTTL sig...
- Fri Feb 07, 2020 1:48 am
- Forum: MiSTer
- Topic: Filters for Scaler
- Replies: 54
- Views: 25728
Re: Filters for Scaler
Thanks for the reply! This test core looks very useful, but would you indulge me for some small feature requests/changes? - It would be nice if the input/output resolutions which is currently in the top left could be centered. - Also in some color other than white, to be visible on top of white pat...
- Thu Feb 06, 2020 9:34 pm
- Forum: MiSTer
- Topic: Filters for Scaler
- Replies: 54
- Views: 25728
Re: Filters for Scaler
Here is a test core which helped during scaler development : http://temlib.org/pub/mister/AscalTest.rbf https://github.com/Grabulosaure/AscalTest_MiSTer This core can adjust input and output image sizes, select different patterns and filters. MiSTer internal screenshot function copies the image fed...
- Thu Jan 30, 2020 8:30 pm
- Forum: MiSTer
- Topic: Custom Video Modes Test Thread
- Replies: 103
- Views: 57119
Re: Custom Video Modes Test Thread
Standard 1280x1024 @60Hz ?uigiflip wrote:whats best for 1280 by 1024?
Code: Select all
video_mode=4
There is also the possibility of dumping the screen EDID with a PC and create a mode matching exactly one of the screen supported resolutions.
- Thu Jan 30, 2020 12:26 am
- Forum: MiSTer
- Topic: Filters for Scaler
- Replies: 54
- Views: 25728
Re: Filters for Scaler
Yes, phases are just truncated. I've tried rounding once but it didn't really change much, just that the banding that appears sometimes with non integer scaling is a bit different. ASCAL already supports 32 phases. I have never tried it though. Linear interpolation between phases would require lots ...
- Sun Jan 26, 2020 1:07 am
- Forum: MiSTer
- Topic: FPGA Core that pushes MiSTer
- Replies: 13
- Views: 4792
Re: FPGA Core that pushes MiSTer
Some tests : Total current (DE10 + wired ethernet + KB + Joystick) Apple2 0.910A INTV 0.920A SMS 0.930A C64 0.940A Menu 0.950A SNES 0.950A 1942 0.950A Gameboy 0.960A Genesis 0.970A MacPlus 0.970A MemTest@70 0.970A AO486 1.000A GBA 1.000A MiniMig 1.000A MemTest@160 1.040A ScummVM (Loom) 0.920A I've t...
- Wed Jan 22, 2020 11:26 pm
- Forum: MiSTer
- Topic: Suggested feature: "Time Sleuth" MiSTer core to test display latency
- Replies: 4
- Views: 3145
Re: Suggested feature: "Time Sleuth" MiSTer core to test display latency
I just learned about this device labeled as "Time Sleuth" that can be used to measure how much display latency is in your TV I really like this idea. What a coincidence, I have just tried to make a module that draws blinking rectangles to measure latency. Uses an Arduino photodiode module...
- Fri Jan 10, 2020 11:22 pm
- Forum: MiSTer
- Topic: MISTer with RISC-V
- Replies: 18
- Views: 6382
Re: MISTer with RISC-V
I don't think that Vampire has a compatible MMU either. One "just" have to make a suitable 68040 core for Amiga, Atari, X68000, Macintosh, NeXT... I'm sure it will eventually occur. Mister particularly has incredibly raised the interest in FPGA and the motivation for making FPGA cores. And...
- Fri Jan 10, 2020 8:41 pm
- Forum: MiSTer
- Topic: MISTer with RISC-V
- Replies: 18
- Views: 6382
Re: MISTer with RISC-V
LOL! I am guessing you have very little experience with software based emulations. There is no "trick". The performance is straight across the board. The reality is that FPGA based CPUs are going to be phased out for smaller and substantially cheaper RISC-V type systems. If you do have a ...
Re: ao486 Performance Technical Discussion
"Dirty" means that the data in the corresponding page has been modified, the CPU has made at least one write into that 4kB area. During the first write into a "clean" page, The TLB must be updated, but also the page table entry in RAM, maybe ao486 does a forced TLB miss to trigge...
- Mon Oct 28, 2019 11:37 am
- Forum: MiSTer
- Topic: SDRAM board
- Replies: 480
- Views: 307406
Re: SDRAM board
The reliability really depends on the DE-10 Nano board itself. It's something that I have asked Terasic to look into. I have 128MB SDRAM plug-in modules that I designed as well as the original 128MB design that is in the MiSTer repo. Both designs work fine in three of the five DE-10 Nano boards, pa...
- Sun Oct 27, 2019 1:01 pm
- Forum: MiSTer
- Topic: MISTer (Main Core)
- Replies: 344
- Views: 156416
Re: MISTer (Main Core)
You can try to change the framebuffer console resolution from the command line, but using reduced colour depth : vmode f rgb16 (The scaler, when used with input video, stores only the source image, high resolution output is generated "on the fly", so it usually it doesn't uses as much memo...
Re: Scaler
8bpp palette implemented is not how i've expected. Can you implement palette as block in DDR3 memory laying before the frame buffer? I can make a thingy that does DMA copies to fill palette registers. It could even be used for setting the framebuffer size, format, base address... or anything else. ...
Re: Scaler
When you will be able to finish new format? I have just uploaded a new version with an indexed 8bpp mode (palette). OLD FORMAT[2:0] NEW FORMAT[4:0] "000" 16bits 1555 RGB => 01100 "001" 24bpp RGB => 00101 "010" 32bpp RGB => 00110 "011" 16bits 565 RGB => 00100 ...
Re: Scaler
@Grabulosaure: I found that R/B in 16bit mode are swapped. Also some bits offsets were wrong. I fixed it in my latest Menu commit together with 565 mode. I've fixed it only in output part affecting the framebuffer. Probably input part also needs fixing, although 16bit modes aren't used for core vid...
Re: Scaler
further investigation shown that pll_hdmi_adj is guilty in HDMI initialization problem. Somehow it interfere with ADV7513 configuration. Once i set llena = 0; lltune = 0; i've got Menu core working. Even standard disable lowlat mode from HPS side doesn't prevent the problem. It's not a problem to d...