MiSTer FPGA Forum

C128:

• Add MegaBit 128 support (1Mb internal function ROM).

• Incorporate upstream changes from C64:

  • VIC-II improvements (Gyorgy Szombathelyi).

  • Cartridge: support for 128K Super Snapshot v5.

  • C1541: fix disk swap signals.

• Updated framework.

C128:
- Fixed issues with CP/M and REU.
- Updated framework.

These keys work if you press them just at the right time. Unfortunately, the MiSTer resets the keyboard status when a core starts, so the timing has to be just right.

When using reset option in the core's menu, keyboard is also reset, unless you turn off the "Release keys on reset" option in the Hardware settings.

New version has been released and should be available from the downloader soon.

@alynna this version should now be stable enough for you to build upon, I expect (hope) no more big changes are needed to the main sysclk state machine

C128:

- Incorporated upstream changes from C64 and T80
- Added basic support for GMod2-128 cartridges
- VIC $D030 video tricks implemented.
- More work on stabilizing the VDC video output.
- (Re)Implemented smart turbo mode with up to x4 speed.
- Added Z80 smart turbo mode.
- Updated framework.

Don't think changing the settings changes it, when it occurs. Just the fact that it occurs on some builds and not others indicates a deeper problem I need to dive into.

And for the curious, this is what GEOS looks like in the build I wanted to release last Wednesday

ron wrote: ↑Sun Mar 26, 2023 11:05 am

Comparing C128 core and C128 real hardware, I was testing the core and what called my attention was that the Vic II-e does not work correctly when using the $d030 trick and the CPU at 2 MHz.

Yes I know. This is even listed as a todo in the README

C128:

- Updated framework
- Fix sync issues with VDC on analogue output
- Fix MMU and CPU incompatibilities
- Added support for some C128 cartridge formats
- Various other small fixes

rhester72 wrote: ↑Sat Feb 25, 2023 1:33 pm

• The one byte of 'leak through' memory
• Four I/O addresses that aren't mirrored
• Two writable I/O addresses that aren't normally on a C64

This is just wrong, there are much more differences. I'm not sure what your point is anyway?

TuffyDK wrote: ↑Fri Feb 24, 2023 7:17 pm

eriks5 wrote: ↑Fri Feb 24, 2023 6:22 pm

jca wrote: ↑Fri Feb 24, 2023 6:13 pm

Update all does not grab the core. Does the presence of a mra folder confuse the script?

It was in the distribution repo and I verified it downloaded before posting in the release topic, but it's gone now. ???

I tried Update and Update_all script - And No adding C128 to Mister

We'll get it sorted. Aren't computers fun

jca wrote: ↑Fri Feb 24, 2023 6:13 pm

Update all does not grab the core. Does the presence of a mra folder confuse the script?

It was in the distribution repo and I verified it downloaded before posting in the release topic, but it's gone now. ???

It's released! The core will be downloaded by the updater script when you run it.

See the post in the updates and changelog forum for the full announcement.

tomxp411 wrote: ↑Thu Feb 23, 2023 6:29 pm

I see there's a new main MiSTer update that supports the C128 core. Is the same change as in that recent release? Does this eliminate the need to install the main MiSTer binary?

Yes it is, and the core will be available from the updater soon too

Thank you!

The C128 core has reached a releasable state, so I'd like to transfer the repository to the mister-devel org

Can I get the permissions for that?

To complete the release I would need to push the .rbf to the releases folder, and once the cores list on the wiki is updated the distribution repo will start picking it up, right?