Search found 78 matches

by Grabulosaure
Mon Oct 09, 2023 10:32 pm
Forum: General Discussions
Topic: Intel Preparing to Spin-off Altera
Replies: 21
Views: 6184

Re: Intel Preparing to Spin-off Altera

Discount prices are likely not limited to Intel/Altera.

T.I., ISSI, Panasonic, Analog Devices, Linear Tech, Microchip and Wurth logos are advertised underside the DE10nano.

by Grabulosaure
Mon Sep 11, 2023 8:38 pm
Forum: Other Console Cores
Topic: Intellivision Core (INTV)
Replies: 171
Views: 130807

Re: Intellivision Core (INTV)

@Ashfall, @n0xlf

Did you try the "swap joystick" menu option? What occurs?

by Grabulosaure
Fri May 13, 2022 12:20 am
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

... After booting the CD as shown above, the installer will fail because of a non formatted disk and drop you to a bash prompt. Format the disk with 259 cylinders, 2 alternate cylinders, 63 heads and 255 sectors per track. Label it and it should be ready to accept an OS. ... EDIT: Came back to give it one try before bed, but it looks like 2GB isn’...
by Grabulosaure
Mon May 09, 2022 11:51 pm
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

@kconger, @kevind I've found the problem. Some bug that I introduced in OpenBIOS when trying to optimise disk accesses, which broke CDROM with 2048 bytes. Boot.rom need to be updated. https://github.com/Grabulosaure/ss_openbios http://temlib.org/pub/mister/SS/boot.rom Type "boot cdrom:d" on OpenBIOS prompt. It's quite slow. @Alkadian http...
by Grabulosaure
Sun May 08, 2022 11:00 pm
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

I have updated the SS5 core. https://github.com/Grabulosaure/ss http://temlib.org/pub/mister/SS/ss5.rbf - CDROM now works with Solaris (8), NextSTEP, Linux (RH). To mount the CD with Solaris, type : " mount -F hsfs -r /dev/dsk/c0t6d0s0 /cdrom", for old Linux, it's "/dev/scd0" It should be possible to test NextSTEP software by cr...
by Grabulosaure
Fri Apr 29, 2022 12:42 am
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

kconger wrote: Fri Apr 29, 2022 12:04 am
Does the CDROM work at any level? I tried both 512 & 2048 and haven't had any luck.
No. CDROM doesn't work. :-(
by Grabulosaure
Thu Apr 28, 2022 11:41 pm
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

I was able to get Solaris 8 connected over PPP. After modifying the Solaris PPP template files, I had to use this connect script on the MiSTer side: https://misterfpga.org/viewtopic.php?p=15634#p15634 . I think there is a way around this by modifying the chat script on the Solaris side, my PPP knowledge is very rusty. Here is a build of SS5 with t...
by Grabulosaure
Wed Apr 27, 2022 1:55 am
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

I've updated the SS core, changed SCSI ID, and have briefly tested RedHat, Solaris 7, Solaris 8, SunOS, NextSTEP. I don't understand why it was necessary to change SCSI. http://temlib.org/pub/mister/SS/ss5.rbf http://temlib.org/pub/mister/SS/ss20.rbf It's better to reboot MiSTer when trying different OSes, probably a few missing register reset. I'v...
by Grabulosaure
Thu Mar 31, 2022 11:47 pm
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

Re: SparcStation Core

Guys, I have been probably doing something wrong. From the Mister Menu: I lunch SS5 I mount the .raw for nextstep I select IOMMU rev: 11 Then when nextstep boots up: After pressing 'enter' I get a system panic error message: Sytem Panic: chip didn't initialize (Type 'r' to reboot or 'm' for monitor) I did try with both options but to no avail. Tha...
by Grabulosaure
Wed Mar 30, 2022 11:12 pm
Forum: Other Computer / System Cores
Topic: SparcStation Core
Replies: 126
Views: 26666

SparcStation Core

(Related to this thread : https://misterfpga.org/viewtopic.php?t=545) I've posted on GitHub the current sources of the SparcStation core with updated MiSTer framework. I've wanted to cleanup that code for ages. And update support for the other boards I have (Xilinx SP605, Terasic C5G, MYIR FZ3...). Not done yet. https://github.com/Grabulosaure/ss T...
by Grabulosaure
Wed Jan 12, 2022 11:08 pm
Forum: Display Devices
Topic: Possible image rotation to the analog output?
Replies: 6
Views: 3039

Re: Possible image rotation to the analog output?

This is a know limitation of the scaler. When using the framebuffer mode, which is the case when rotating arcade cores, the scaler cannot downscale properly. - Latest changes, not yet applied on all cores, can do some form of vertical downscaling. It's not perfect as some lines are skipped, but at least the image should be complete. - Horizontal re...
by Grabulosaure
Wed Jan 05, 2022 9:03 pm
Forum: General Discussions
Topic: Something's broken with the HD scaler's buffering/frameskip [update: only when display is flipped]
Replies: 6
Views: 4397

Re: Something's broken with the HD scaler's buffering/frameskip

That's interesting.

I'm trying to update low lag mode for better resolution switches and change multi-buffering to reduce latency.
by Grabulosaure
Wed Jan 05, 2022 8:55 pm
Forum: Other Computer / System Cores
Topic: Thomson MO5/MO6
Replies: 20
Views: 11774

Re: Thomson MO5/MO6

Excuse my dumbness but how do you enter the letter M in this core? It depends on the "Keyboard" option. MO6 computers had an AZERTY keyboard, and many symbol keys were different from the PC layout, like many of the home computers of that era. So there is several wrong options between having a layout that resemble the original computer, a...
by Grabulosaure
Tue Oct 26, 2021 11:33 pm
Forum: Other Console Cores
Topic: Acetronic MPU 1000 + Compatibles
Replies: 8
Views: 11993

Re: Acetronic MPU 1000 + Compatibles

I missed the release of this until it was updated today! Works quite nicely although I have some minor issues: * "Start" and "Select" appear to be reversed, even after I mapped them directly on the core. * Although it elected to use the analogue stick, the movement on screen appears to be digital. I don't know quite how analogu...
by Grabulosaure
Tue Oct 26, 2021 8:05 pm
Forum: MiSTer Updates & Changelog
Topic: MiSTer updates and changelog
Replies: 771
Views: 3442549

Re: MiSTer updates and changelog

Intellivision: - Changes to Intellicart format detection. Add menu for forced selection of Raw or Intellicart formats - Double height MOB selection fix (D1K) Interton VC-4000: - Changed joystick mapping Emerson Arcadia 2001: - New core, previously part of the "C2650" core. Based on Signetics 2650 CPU and 2637 video. Fairchild ChannelF: -...
by Grabulosaure
Sun Sep 26, 2021 2:48 pm
Forum: General Discussions
Topic: Screen trembling and flashing when in "command line"
Replies: 3
Views: 1815

Re: Screen trembling and flashing when in "command line"

Looks like a memory bandwidth issue.
Can try to reduce console resolution and/or colour depth.

The scaler buffers are a bit too small.
by Grabulosaure
Sun Jul 11, 2021 10:32 pm
Forum: Game Boy Advance
Topic: Support for ultrawide resolution
Replies: 13
Views: 13573

Re: Support for ultrawide resolution

Supporting wide resolution uses lots of memory in the FPGA, It's not really useful for most cores.
by Grabulosaure
Sat Jul 10, 2021 10:11 pm
Forum: Game Boy Advance
Topic: Support for ultrawide resolution
Replies: 13
Views: 13573

Re: Support for ultrawide resolution

@Crystal You need to reduce clock frequency : video_mode=2560,168,272,440,1080,1,3,34,230760 230MHz is far too high. For example the 2048x1536 mode uses a 209.318MHz clock (which is already beyond reasonable) Either try 50Hz modes. Or find a mode compatible with your screen but with reduced blanking, for example : 2560,48,32,80,1080,1,3,34,182460 T...
by Grabulosaure
Sat Jul 10, 2021 12:32 pm
Forum: Game Boy Advance
Topic: Support for ultrawide resolution
Replies: 13
Views: 13573

Re: Support for ultrawide resolution

You need to recompile the core with .OHRES(4096) for ascal in sys/sys_top.v :

Code: Select all

+   .OHRES(4096),
    .N_DW(128),
    .N_AW(28)
)
ascal
by Grabulosaure
Sun Jul 04, 2021 12:58 pm
Forum: SNES (Super Nintendo Entertainment System)
Topic: Screen tearing after playing Zelda LTTP for multiple hours. [Fixed]
Replies: 40
Views: 24373

Re: Screen tearing after playing Zelda LTTP for multiple hours.

@paulbnl @AtomicShroom I have posted an updated version of SNES which may fix the problem : End of input and begin of output during the same clock cycle. http://temlib.org/pub/mister/SNES.rbf http://temlib.org/pub/mister/SNES_border.rbf diff --git a/sys/ascal.vhd b/sys/ascal.vhd index 2d21b35..f157e9f 100644 --- a/sys/ascal.vhd +++ b/sys/ascal.vhd ...
by Grabulosaure
Sun Jul 04, 2021 9:13 am
Forum: SNES (Super Nintendo Entertainment System)
Topic: Screen tearing after playing Zelda LTTP for multiple hours. [Fixed]
Replies: 40
Views: 24373

Re: Screen tearing after playing Zelda LTTP for multiple hours.

@Grabulosaure What I think is happening is that in some edge case 'o_ibuf0' and 'o_obuf0' become equal. The 'buf_next' function defaults to buffer 1 so when o_ibuf0 and o_obuf0 are equal then they both get stuck at buffer 1. I had to wait a long time for it to start tearing again but I could finally confirm with SignalTap that they are both stuck ...
by Grabulosaure
Sat Jul 03, 2021 10:39 pm
Forum: SNES (Super Nintendo Entertainment System)
Topic: Screen tearing after playing Zelda LTTP for multiple hours. [Fixed]
Replies: 40
Views: 24373

Re: Screen tearing after playing Zelda LTTP for multiple hours.

@AtomicShroom I really have no idea on what could cause tearing after hours. The scaler continuously selects the latest updated frame. I've made a version of SNES with a "border" option which shows input video in the border of the scaled image. I'd be curious to know if the tearing is synchronised with the input video sliding : http://tem...
by Grabulosaure
Mon Jun 28, 2021 10:45 pm
Forum: Display Devices
Topic: Scaler won't downscale
Replies: 9
Views: 2825

Re: Scaler won't downscale

This is a known problem. Actually a design limitation. - The scaler can be used to resize the video from the core (usually standard 220- 240 lines PAL/NTSC) to any resolution on the HDMI output (can be upscaled with polyphase or downscaled with linear). - The scaler has a "framebuffer" mode where pixels are directly written to DRAM by the...
by Grabulosaure
Wed May 19, 2021 11:42 am
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281635

Re: Lets actually try Hybrid Emulation

RTG on MiSTer is just some DDRAM area directly fetched by the scaler. The framebuffer address is the rtg_base[31:0] signal = 0x2700 0000 But, it is mapped in the 68K memory map @ 0x200 0000, in an unused memory area outside ZIII space. (RTG doesn't need to allocate any fastram memory) For this hybrid version, mapping RTG into ZIII memory could be s...
by Grabulosaure
Sun Apr 25, 2021 12:04 am
Forum: Other Console Cores
Topic: Intellivision Core (INTV)
Replies: 171
Views: 130807

Re: Intellivision Core (INTV)

Many changes to Intellivision sound and voice:

http://temlib.org/pub/mister/Intv.rbf

Please report any problem.
by Grabulosaure
Sat Apr 24, 2021 8:53 am
Forum: Linux
Topic: MiSTer core without make files?
Replies: 11
Views: 4702

Re: MiSTer core without make files?

It's quite common for commercial tools to install to their own directory and not use linux packages. And use scripts for launch. Same for Xilinx (other FPGA brand). Several versions can be installed at once (with gigabytes of data, shared libraries), often on a large shared server, with licence files. Sometimes non-admins need to install software. ...
by Grabulosaure
Fri Apr 09, 2021 8:49 pm
Forum: Other Console Cores
Topic: Intellivision Core (INTV)
Replies: 171
Views: 130807

Re: Intellivision Core (INTV)

teller wrote: Fri Apr 09, 2021 8:24 pm I just tested the lastest Intv.rbf from 2021-04-05. Is it possible that it has more bugs than the last one posted before? The sound of the voice sounds distorted and chopped off.
That's strange, I didn't change anything to sound.

But sound have always been wrong somewhere. Voice is distorted/choppy.
by Grabulosaure
Thu Apr 08, 2021 2:00 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281635

Re: Lets actually try Hybrid Emulation

How does it work in Amiga land?

The Chip RAM is only accessible to the CPU and don't need any cache coherency with the rest of the system (except for RTG video) ?

I suppose other architectures with 68K CPUs are likely to use coherent RAM for DMA.
by Grabulosaure
Thu Mar 18, 2021 1:26 am
Forum: Other Console Cores
Topic: Intellivision Core (INTV)
Replies: 171
Views: 130807

Re: Intellivision Core (INTV)

Oh nice to see some updates on this beloved core. Hope that @Grabulosaure will publish soon a compiled version. The 1st game that I owned and played a lot back in the days was Space Armada, unfortunately it freezes after a minute or so on the Jan. core. So really looking forward for an update as well. I've just fixed Space Armada and Auto Racing. ...
by Grabulosaure
Tue Mar 16, 2021 4:51 pm
Forum: General Discussions
Topic: Running MiSTer on 12v ?
Replies: 28
Views: 11017

Re: Running MiSTer on 12v ?

There is also reverse voltage protection. (schematics sheet 22 : Q3 for inverse, Q2 for overvoltage).
Even if the board doesn't fry, it won't work either.