RE[30]: Another c64-ish motherboard in development.
We are still planning to support illegal opcodes and at least the common timing related tricks. FLI and DMA delay are both on the list of things we are aiming for. Whether we achieve them, that's a...
View ArticleRE[6]: Why dont you continue to release Bitstreams like promised ?
Paul, Thank you so much for the work on this project. This is the most exciting and anticipated project on my radar. I can't wait for the finished version!
View ArticleRE[2]: Update on keyboard input overhaul
Yes, both keyboards appear the same to the programmer: driving the CIA matrix and also producing an ASCII character stream. It is then as easy as reading a single register to see the last key pressed....
View ArticleRE[32]: Another c64-ish motherboard in development.
IMO, I prefer to judge things by how ugly it is to maintain compatibility: If you need all kind of unelegant hacks or lots of "switch on advanced functionality" switches, it is better to sacrifice...
View ArticleRE[35]: Another c64-ish motherboard in development.
Thanks for the vote of confidence :) we do try to balance these things. For c64 compatibility, if space allows it we will be adding a vic-ii as well as vic-iv to the main core which will be activated...
View ArticleRE[38]: Another c64-ish motherboard in development.
Well, coming back the original topic, for those situations, Gideon's Ultimate64 will simply be the right product: His 1541 simulation is near perfect and gives 100% compatibility, even with copy...
View ArticleRE[1]: MemTest64
www.mirkosoft.sk/memtest65.jpg Here are results: native - top C64 mode - bottom Miro
View ArticleRE[4]: MemTest64
May I have a question? What should be the best or surest way to fast and easily (in only a few steps) distinguish the MEGA65 from C65? I have done it in my code by switching to VIC-IV mode, then...
View ArticleRE[12]: MemTest64
Thank you, Paul. That's exactly what I am doing, of course. Maybe only not succeded because I assumed they give back $ff when hidden (as normally on a C64), but you rather set them to $00 (or any...
View ArticleRE[15]: MemTest64
Here are screenshots of all done tests http://www.mirkosoft.sk/tests.zip Look at. Miro
View ArticleRE[19]: MemTest64
@MIRKOSOFT: Interestingly, the VDC is not usable at all, if an IDE64 is present. The VRAM goes mad, and almost every read/write attempt gets corrupted (it also conflicts to the I/O spaces of the GeoRAM...
View ArticleRE[22]: MemTest64
Today I do more tests and add info about my config. Here's 2:30AM. Miro
View ArticleRE[26]: MemTest64
@MIKROSOFT: My actual implementation is a 6502 specific code cycle, which runs exactly for 0.1 sec (by checking for the raster counter to count until 5 or 6 full screen frames for PAL or NTSC), while...
View ArticleRE[28]: MemTest64
Thanks. My final goal will be to have an advanced MUD-like (realtime, multiplayer, multiplatform etc.) Interactive Fiction, text adventure game engine for all the 8-bit Commodore machines at once...
View ArticleRE[30]: MemTest64
@MIRKOSOFT: Thanks. The next revision (v1.05) is almost ready, so probably I can upload it tomorrow or so. It is also possible if my program conflicts to the RR-Net or some other expansion (although it...
View ArticleRE[31]: MemTest64
v1.05: - new test for colour RAM (1K on C64, 2 x 1K on C128 and 2K on C65) - C65 mapper/DMA total (full address space including non-contiguous blocks) - MEGA65 total (exploring the 32-bit address...
View ArticleRE[41]: MemTest64
@MIRKOSOFT: Thanks. I will try to build this code sequence into the next version. Why are the NOP statements required?
View ArticleRE[42]: MemTest64
I can recommend C65 and M65 emulator XEMU https://bintray.com/lgblgblgb/generic/xemu#files It's not finished project, but if you missing hardware, helps - even better than MESS. To code: NOP are...
View ArticleRE[53]: MemTest64
If the screen clear is not happening in C65 mode, it could be that you don't leave the IO mode in VIC-III, which might confuse the C65 ROM. But this is only speculation. Regarding 28 versus 32 bit...
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