Altirra 2.20 released

Finally got around to releasing version 2.20 of my emulator, Altirra. Link to download and full changelist:

http://www.virtualdub.org/altirra.html

Some highlights:

• Hardware support: MyIDE II and Ultimate1MB emulation added; fixes for SIDE, SIC!, and flash memory emulation.
  
• Debugger: Many changes and improvements, including better support for accessing extended/hidden memory and additional aids for debugging PBI, IDE, and CIO code.
  
• UI: Display code rewritten to support higher quality status overlays, some UI-less menu commands are now available in full screen mode, keyboard shortcuts are now configurable, shift-hover gives help for BASIC and DOS error codes, and copy text now works when emulation is stopped.
  
• Disk: You can now pre-format new disk images for DOS 2 and mount a host directory as a virtual disk image. Also fixed several DOS filesystem handling bugs in the disk explorer.
  
• IDE: VHD images are now supported.
  
• Fixes for a couple of emulation issues in POKEY and ANTIC.
  
• Major rewrite of the built-in OS kernels for better compatibility.

As usual, thanks to everyone that's been trying it out and providing feedback.