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libretro / vice-libretro

Versatile Commodore 8-bit Emulator
GNU General Public License v2.0
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JiffyDOS when emulating SX-64 isn't working #479

Closed veganvelociraptor closed 2 years ago

veganvelociraptor commented 2 years ago

I can easily get this to work with native VICE, just by changing the ROM files in vicerc as per below. However, this doesn't work with the libretro core.

vice-screen-2022100411234616

Just switching on JiffyDOS in the core options doesn't seem to do anything. I'm not even sure the core supports loading JiffyDOS_SX-64.bin as it's not listed as an optional component in the core info.

What I tried was to create a custom vicerc, just like the one I use for native VICE:

[C64] KernalName="/run/media/mmcblk0p1/steamapps/common/RetroArch/system/vice/JiffyDOS_SX-64.bin" DosName1541="/run/media/mmcblk0p1/steamapps/common/RetroArch/system/vice/JiffyDOS_1541.bin" DosName1541ii="/run/media/mmcblk0p1/steamapps/common/RetroArch/system/vice/JiffyDOS_1541-II.bin" DosName1571="/run/media/mmcblk0p1/steamapps/common/RetroArch/system/vice/JiffyDOS_1571_repl310654.bin" DosName1581="/run/media/mmcblk0p1/steamapps/common/RetroArch/system/vice/JiffyDOS_1581.bin"

This didn't work either. I also tried replacing the JiffyDOS_C64.bin file with JiffyDOS_SX-64.bin, which made no difference: RetroArch_20221004_112517

I tried all this with different combinations of SX-64 PAL/NTSC and JiffyDOS on/off in the core options. Is it possible to actually achieve what I'm trying to do here, or is the combination of SX-64 and JiffyDOS not implemented at all in the libretro core?

sonninnos commented 2 years ago

It is not thought out at all, because why is it needed really?

veganvelociraptor commented 2 years ago

It is not thought out at all, because why is it needed really?

Other than a curiosity, no it's not. :smile_cat:

sonninnos commented 2 years ago

Ok, I got this sorted. I also thought about adding it for VIC-20 too because why not, but noticed that it makes the screen very badly misaligned when using PAL, so maybe it is not worth the hassle..