Search found 343 matches

by slingshot
Sat Dec 15, 2018 11:31 am
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Neuro wrote:Btw, you can use the a2600 uno cart to see the rom type or see if uses superchip. Its the same methot that stella emu uses.



I saw the Stella emu auto-detection, but implementing arbitrary string searches in hardware are much more demanding than implementing it in CPU.
by slingshot
Fri Dec 14, 2018 9:03 pm
Forum: MiSTer
Topic: C64 Core
Replies: 66
Views: 11165

Re: C64 Core

Here is the 1541 test suite. Mount each disk and LOAD"*",8 and RUN it. There are 12 opcodes that fail.. Opcodes $09, $12, $13, and $66 fail on the first disk. Opcodes $18, $19, $1C, $50, $51, $52, $53, and $54 fail on the 2nd disk. Also note the many of the VIA tests for the 1541 fail. Fo...
by slingshot
Fri Dec 14, 2018 12:56 pm
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Chris23235 wrote:Thanks for your work on the core. I noticed that the screen in Desert Falcon is constantly shaking, no other game has this problem.

Since the VSYNC is totally software controlled on this console, maybe the game itself does some funky things with it.
by slingshot
Fri Dec 14, 2018 12:27 pm
Forum: MiST
Topic: PCEngine core issues with roms?
Replies: 74
Views: 6225

Re: PCEngine core issues with roms?

squid4 wrote:Thanks Higgy, I didn't have a keyboard attached and was pressing the middle MiST button - but that doesn't appear to work as usual.

The updated core uses the MiST ARM controller for OSD and FAT access, so no special requirements. The menu actually comes up for me pressing the middle button.
by slingshot
Thu Dec 13, 2018 12:47 pm
Forum: MiST
Topic: NES core on MiST
Replies: 176
Views: 47006

Re: NES core on MiST

Of course. Last night I was eager to put the binaries in people hands but it was late. I'll do the "gitery" tonight. The compilation times I reported are on my old laptop. I'm sure your development PC does better. Still, it more than doubled. And yes, the FM chip is quite big. Yeah, it's ...
by slingshot
Thu Dec 13, 2018 11:02 am
Forum: MiSTer
Topic: C64 Core
Replies: 66
Views: 11165

Re: C64 Core

Your are correct, and it doesn't pass with the 1541 or C64. Yeah, the C64 core on MiSTer didn't get the T65 (yet). However there's a report about a problem with a game on MiST (which has it, and passes the test, however the game is not free, I didn't test it myself). Not sure if it's because of the...
by slingshot
Wed Dec 12, 2018 8:58 pm
Forum: MiSTer
Topic: C64 Core
Replies: 66
Views: 11165

Re: C64 Core

JimDrew wrote:There are 4 opcodes on the 1541 test suite's 1st disk that fail. I didn't try the 2nd disk. Also, the "CPU Port" ($01) fails VICE's CPU test suite.

Do you have these test suites?

I think the opcode tests run the Lorenz tests on the 1541's CPU, and T65 should pass it.
by slingshot
Wed Dec 12, 2018 8:48 pm
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Slingshot - your 2600 Core's TV centering is much better than the previous one. So your TV signal works is not too bad ;) I will get around to taking pictures off my CRT comparing actual hardware vs MiST. Actual hardware can be a pain, my Amstrad CPC 6128's are off to the left via RGB. But then aga...
by slingshot
Wed Dec 12, 2018 8:45 pm
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Slingshot - with the latest updates (both yesterday's and today's), F9/F10 to reset/select no longer work for me. The previous builds do. Any idea what's going on? I didn't even know there's an F9 and F10 shortcut key :) Start work for me using the "Start" controller button (or joy emulat...
by slingshot
Wed Dec 12, 2018 2:59 pm
Forum: MiST
Topic: [Solved] MiST Hardware Revisions? MSX-Core-Problem
Replies: 149
Views: 27445

Re: [Solved] MiST Hardware Revisions? MSX-Core-Problem

My MIST is updated with the latest firmware "firmware_181013.upg"; Interestingly, the OSD shows me "ATH181006" ... is this correct? Yes, I built it on 6th, but just uploaded on 13th. Did other things between them :) - I have also tried using only the BIOS file and the core.rbf (...
by slingshot
Wed Dec 12, 2018 12:16 pm
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Is it possibile to have this update on MiST too ? I play more on MiST even if I like to switch on the original machines from time to time. Always thanks for your support to MiST community. The MiSTer C64 repo actually contains a previous 1541, which pre-dates the switch to the T65 CPU. Maybe that C...
by slingshot
Wed Dec 12, 2018 10:07 am
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

DanyPPC wrote:Thanks Slingshot, always present !

May you give an update to the C64 port regarding the 1541 part ?

What should I update there? Do you have a link to a fix or some hints what's wrong?
by slingshot
Wed Dec 12, 2018 9:34 am
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Uploaded a new release with more mapper support: E0, 3F, FE. FE is buggy, but affects only 2 games, Decathlon and Robot Tank. Since these are not auto-detected, a bit of work needed to make such roms to work. The specific mapper can be forced by giving the .e0, .3f or .fe extension to the ROM file, ...
by slingshot
Tue Dec 11, 2018 10:15 am
Forum: MiST
Topic: Apple ][+ Core
Replies: 113
Views: 37276

Re: Apple ][+ Core

Hi. I managed a quick play with the Core. Here are some observations: 1.On 15kHz CRT TV picture is good, but is off to the left the same amount as original PC Engine Core. As the computer does not fill the whole screen you don't miss information like on the PC Engine but it would be nice if centeri...
by slingshot
Tue Dec 11, 2018 9:44 am
Forum: MiST
Topic: NES core on MiST
Replies: 176
Views: 47006

Re: NES core on MiST

Overall, the core went from 35% to 75% gate consumption and now takes more than 30min to compile, up from 12min. :coffe: Great! Do you have the source changes? 1-2 month ago I've made a small change when the scandoubler's RAM was not inferred to BRAM, and consumed about 10k LCs. Is the new FM chip ...
by slingshot
Mon Dec 10, 2018 11:44 pm
Forum: MiST
Topic: Atari 2600 games that do not work on the latest core
Replies: 23
Views: 1184

Re: Atari 2600 games that do not work on the latest core

Stargate Montezuma’s Revenge Millipede Frostbite Dig Dug Jr. PacMan Can you confirm this? Turned out most of these games are using a so-called SuperChip, which is a 128 bytes RAM in the cart. This doubles the RAM of the A2600! The good news is that the core already implemented this, just there wasn...
by slingshot
Mon Dec 10, 2018 9:43 am
Forum: MiST
Topic: Genesis / Megadrive core ported to MiST
Replies: 832
Views: 106420

Re: Genesis / Megadrive core ported to MiST

DanyPPC wrote:FPGAGen has been update:
https://github.com/mist-devel/mist-bina ... es/fpgagen


This version has a new PSG from jotego, also the fake EEPROM option should work now in all affected games (lots of sports games, Wonder Boy in Monster World), and some minor bugfixes.
by slingshot
Mon Dec 10, 2018 8:42 am
Forum: MiST
Topic: Apple ][+ Core
Replies: 113
Views: 37276

Re: Apple ][+ Core

The Apple IIe was an extension of the 2+ that came with 128KB of RAM, 80 columns, and extemded character set (with international support with some country-specific ROMs). I believe most games just need the extra memory which is already availavle in the core. Yeah, but I'm not sure the Saturn RAM ex...
by slingshot
Sun Dec 09, 2018 8:16 pm
Forum: MiST
Topic: Apple ][+ Core
Replies: 113
Views: 37276

Re: Apple ][+ Core

DanyPPC wrote:I think PoP is for Apple 2 GS

It says it requires a C or E model with 128k RAM.
Just I don't know what makes a + model to C.
by slingshot
Sun Dec 09, 2018 8:08 pm
Forum: MiST
Topic: Apple ][+ Core
Replies: 113
Views: 37276

Re: Apple ][+ Core

Experimented a bit with this core, and added 15kHz support (attached). YPbPr also available in both 15kHz and 30kHz modes.

Anyone knows what hardware extension Prince of Persia requires? 80-column card, or something more?
by slingshot
Sat Dec 08, 2018 3:00 pm
Forum: MiST
Topic: PCEngine core issues with roms?
Replies: 74
Views: 6225

Re: PCEngine core issues with roms?

- what kind of rom is Street Fighter 2 wich ha some graphic glitches ? Street Fighter 2 is 2.5MB. It requires RAM banking to work correctly (and enough RAM/address lines to address it). See starting here for the code in MiSTer (and the comments above for a description): https://github.com/MiSTer-de...
by slingshot
Fri Dec 07, 2018 8:26 pm
Forum: MiST
Topic: PCEngine core issues with roms?
Replies: 74
Views: 6225

Re: PCEngine core issues with roms?

Slingshot - would it be difficult to map the controller buttons also to the keyboard? Handy for testing etc if you don't have a controller about. Joystick emulator is a feature of the MiST firmware for a long time. NUM Lock acitvates it, you can read more at the scrolling text in the OSD. What does...
by slingshot
Fri Dec 07, 2018 9:48 am
Forum: MiST
Topic: PCEngine core issues with roms?
Replies: 74
Views: 6225

Re: PCEngine core issues with roms?

https://github.com/MiSTer-devel/TurboGrafx16_MiSTer/commits/master/cpu65xx.vhd The more recent of the IRQ fixes is the one you probably want. If I remember correctly, the issue was at the end of the IRQ handler, the IRQ flag is cleared, but it didn't take affect fast enough to prevent a second irq ...
by slingshot
Thu Dec 06, 2018 2:40 pm
Forum: MiST
Topic: Defender/Robotron/Joust on MiST?
Replies: 4
Views: 411

Re: Defender/Robotron/Joust on MiST?

Thank's for the tip. The core will fit in the FPGA provided that the Program ROM, and the Sound ROM is loaded into SDRAM. The next problem porting this core is related to that MiST SDRAM address bus has 13-bits, however, the Mister core has 16-bits, and the original core (from Dar) has a 15-bit wid...
by slingshot
Thu Dec 06, 2018 11:59 am
Forum: MiSTer
Topic: Genesis Core
Replies: 233
Views: 22903

Re: Genesis Core

Sorgelig wrote:As far as i know there are only 2 games in Genesis using interlace mode: Sonic 2 (and only in split screen mode!) and some other game i forgot the name. So it's definitely not a reason to keep a bulky VIP scaler.

Combat Cars :)

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