Home Page Forums MAME MAME 2025: Bringing your WIP to a gun fight

Here's a little bit of the first-person shooter Marathon by Bungie running in the still very preliminary Power Macintosh emulation. And running on MAME's new ARM DRC backend to boot - the frame rate you see here is the frame rate I saw live while playing.

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Here is about two-fifths of the Casio "Symphonytron" modular organ thing from 1983. Supposedly they only ever made 100 of them, but running on 8049s instead of custom CPUs made them the most easily emulatable of the old "vowel-consonant synthesis" instruments. They sync up over a proprietary parallel bus which I also adapted to be (almost) fully controllable over MIDI.

Nice. So the bus system has been deciphered? And it was named "Consonant-Vowel", not "Vowel-Consonant" (so Casio could abbreviate it CV to confuse the analogue synth community). I own some Symphonytron components.

- 1x keyboard CT-8000
- auto accompaniment unit RC-1
- memory unit MB-1 (sequencer, uses RAM-Pack RA-2)

But I lack pedal board and 2nd keyboard. The RA-2 looks like a white version of the RA-5 (used for CZ-1). Has anybody examined if they were electrically compatible?

More Amiga WIP stuff: The Zorro-II slot and the CPU slot are now untangled. This is one step in preparation to support CPU upgrade cards. To have something to test I've taken the existing Action Replay skeleton and made it do something:





Exiting from the cartridge isn't stable yet and not everything is restored correctly but at least there is a solid foundation now.

Added Amiga multitap support

Zoran ZR36057 / Pinnacle miroVIDEO DC10+ PCI card current status, pcipc under Windows 98se Jp:


The card initializes and passes the HW tests but don't do anything else of value for now (goes gray when enabling capturing in VidCap or Pinnacle Studio).
The "VSYNC not occurred" is just me deciding to not enable a signal that I'm not entirely sure where it comes. The HW test just enables GIRQ1 + the INTA master, this is obviously depending on the card vendor and it's probably coming from an active VSYNC source. The expected loop is:
Composite/S-Video Input source in CCIR 601 format (VTR/camcorder/TV etc.) -> SAA7110 decoder -> ZR36060 (guest, translates in MJPEG feeds) -> PCI controller (with DMA bus master transferring to a defined video card overlay range with reformatted RGB values).

The (chained) shopping list at this point is:
1. it obviously needs a bitstream in input (and in output, later), be it a serial stream from emulation host or an emulated machine. Bonus points for white noise on slot nullptr detection. Yes I saw picture_image_device / avivideo_image_device in src/devices/imagedev, and I don't think it fits this scenario (or be useful in the long run for that matter).
2. Virge can't do overlay properly, that is a mission on its own. It's already a problem when watching AVIs thru mplayer.exe and window isn't maximized.
3. Sound Blaster 16 cards obviously cannot capture audio.

PC-88VA[2] Tetris showing the copy protection text.



Other games also improved, namely I can probably promote pacman/pacmana already a.k.a. the ugliest Pacman clone ever made:

The CD-ROM as used by the Amiga CDTV and the A570 expansion for the A500 is now emulated. All basic functions work, so you can boot from CD-ROM now or play Audio discs.

A few examples:

Xenon 2 with digitized speech and CDDA music tracks:

Defender of the Crown (uses audio tracks for speech):



The built-in CD player: https://redump.net/files/cdtv_cdplayer.mp4

A taste of things to come...