MiSTer FPGA Forum

I updated the SYS files and had a look at this, but there is more happening than just the shield not working. The self test in GROBDA reports 0 0 3 (rather than the expected 0 0 0) so something beyond the control mapping needs sorting out, need to find out what the '3' is indicating. it does look (from Mame driver) as though GROBDA does some bank s...

It's safer to make up a daemonbytes adapter, the Leonardo's needed are not that expensive (about £5 each) and they always seem to do well in the latency tests. (I think the mistercade uses a version of this as well)

Looking at the cartridges there needs to be some more connections made for the S.L.A.G.s as Indy and Peter Packrat are the only games that use the top two chips. (code currently has lower chips connected to 0xFF for all addresses) All of the other (released) games use at least 3. Road Runner and Marble Madness use 0,1 and 2 (with 0 being the one ne...

I'm also not sure the mentioned games are actually working in practice. Starting Peter Pack Rat on the previous core also gives a black screen. I built my own, has a couple of changes - see if that is any better! gfx likely to be incorrect for some games as it seems to have gfx roms for the lower two S.L.A.G chips set to ignore the images, so any ...

ok, peter packrat odd graphics can be overcome with a change to the MRA file. It's still not 100% but looks much better!

it seems the graphics data is inverted on it's way through the system, so fills need to be 0xFF for unused roms.

It is a bit of a puzzle alright. I think I should be getting close with creating the mra file for Road Runner, but right now it only gives me a black screen. Don't forget to set the correct slapstic (protection) for road runner, should be 6C It looks as though the movable objects (sprites in atari speak) are quite complex, proms set the number of ...

Can anyone else get Peter Pack Rat working? Works for me, has problems with the sprites, draws a grey area above and below them - possibly the S.L.A.G chips being driven in a different way, have to try and work out what it does differently. I know on the real thing I had a faulty Indy cart and a faulty Packrat cart, but swopping the S.L.A.G chips ...

If you changed the clocks to 49139348 Hz and 24569674 Hz then it should give you nearly 60.60606 Hz screen refresh.

I'm not an expert on pacman, never really liked the game ;) however, the ghost AI is based on targeting particular locations on screen, for some ghosts (in chase mode - see later) it is the square that pacman is on, for others it is a square relative to pacmans position. the ghosts switch between 3 modes, chase, scatter and frightened (blue!) and t...

Arcade Core: PenguinKunWars
- port to MiSTer by MiSTer-X
- Updated SYS to latest

All works for me using keyboard or joystick, so now checked in.

What an odd game, I lost about 5 times in a row, although lasted much longer towards the end!

Have updated and removed a few warnings, but need to do some testing before adding it to the repository.

I'll update the SYS to the latest, make sure it builds OK and check it in.

No Mans Land is now completed.

One pull request to look at, but other than that Cosmic (Z80) should be considered complete

Universal Cosmic series games:
- Add No Mans Land.

That is all the Z80 based games now included.

Now looking at the final Z80 game, No Mans Land - My PCB is pretty dead (and most of the ICs have rusty legs), but most of the soundboard works!

The background noise is really clever, it does it using just 3 chips and some resistors, and kicks out a tune at 4 different speeds (no MCU or Eproms)

Finally sorted out enough of the PCB to work the sounds out for Devil Zone.

The schematics have the wrong sound board in them (has Magical Spot), so some guesswork involved, but looks and sounds similar to the one on you tube so hopefully pretty close.

Universal Cosmic series games:
- Add Devil Zone.
- Updated framework.

That is interesting. Steve Golson, one of the original GCC devs And that is the guy with the disk. he has the rom images on modern stuff, so they should be safe at least. He also submitted a driver for Mame (back in 2009) with variations in, but since the roms were not available, it never went in. +GAME( 1981, otto1012, 0, otto1012, mspacman, 0, R...

As far as I know, no known official GCC rom has ever been dumped. Only 3 PCB's were ever converted before it got changed to Ms Pacman, so chances of getting it that way are low. however one of the programmers has a copy of the development disk so that is knocking around and does have sufficient code to create a working version of the game. (and an...

spark2k06 wrote: ↑Tue May 10, 2022 6:09 am This indicates that somewhere in this code, it hangs.

just out of interest, has the stack pointer been setup before you start doing the PUSH and POP commands ?

that is because the de10-lite version is trying to access the bank data from ram loaded by the loader routine, and not actually using those 'rom' equivalent components. You also have linked it directly to the addresses and data used for the MiSTer loader routine, which is transient - that's why you have to write the data to an actual ram bank (al b...

In williams2, where it currently links to each rom, you instead need to create a block of ram (internal FPGA ram is perfect for this) and instead load the rom at run time. e.g. currently says graph1_rom : entity work.joust2_graph1 port map( clk => clock_12, addr => graph_addr, data => graph1_do ); you need to pass these signals into the module .dn_...

from the COPYING doc with it, it is "GNU GENERAL PUBLIC LICENSE - Version 2, June 1991" from one of the source files ... -- Copyright (c) 2006, Arnim Laeuger (arnim.laeuger@gmx.net) -- -- All rights reserved -- -- Redistribution and use in source and synthezised forms, with or without -- modification, are permitted provided that the follo...

I have a copy of the source from a while back if anyone wants a copy to look at / work from

From the mame source code ... Pengo & Pac Man are almost identical, the only differences being the extra gfx bank in Pengo, and the need to compensate for an hardware sprite positioning "bug" in Pac Man. and /* In the Pac Man based games (NOT Pengo) the first two sprites must be offset */ /* one pixel to the left to get a more correct...

Arcade Astrocade : - Updated framework (adaptive scanlines, shadow mask, 64-phase filters). - Add speaker configuration setting for Gorf versions using speech Stereo = Speech mixed in with output for both sound chips (L & R) Cabinet = One sound chip through top speaker (L) Other sound chip or Speech through lower speaker (switched under progra...

quick google ...

A block, on the other hand, is a group of sectors that the operating system can address (point to). A block might be one sector, or it might be several sectors (2,4,8, or even 16). The bigger the drive, the more sectors that a block will hold.

so if the core returns 1 sector at a time, then I guess it should be set to 1

Updated SYS to latest.

I have updated the SYS on the Arcade Astrocade games, so this now supports masks

(was quite a long way behind, so hopefully no bugs introduced along with it)