Z64K developer William McCabe has been hard at working updating Z64K and has reached a 2.0.0 release – [Build 20201217.2257]
The following changes have been made since I last updated this application.

17 December – Version 2 of Z64K only

  • Some audio driver updates to improve sound output in Linux

13 December – Version 2 of Z64K only

  • Improve tape counter timing when using rewind/f. fwd.
  • Start of UI settings for CBM Datasette.  Proper Reverse and Fast Forward implemented .
  • Partial implementation of VIC20 and  disk drive snapshots

6 December – Version 2 of Z64K only

  • Added load_labels (ll) and save_labels (sl) Machine Monitor commands.
  • Added add_label (al), clear_labels (cl), delete_label (dl), and show_labels (shl), Machine Monitor commands.
  • Added radix and registers Machine Monitor commands.
  • When “Audio plugin to control the Game loop speed” not selected Game Loop sleep time is factors in audio buffer size.  Improves stability of audio on lower end devices.
  • Re-enable separate thread for audio driver. “Audio plugin to control the Game loop speed” off by default.

5 December – Version 2 of Z64K only

  • Option to use Audio plugin to control the Game loop speed. Available in Volume control. Lag will be determined by sound buffer size. On by default.
  • Multiple updates to Audio driver.  Should be a lot more stable, especially on lower end systems.

30 November – Version 2 of Z64K only

  • Replaced monitor single step cycle “r” command with “cycle” and “zc”. The command is now included in the machine monitor help (? cycle). r is currently disabled and is reserved for the register command.
  • Fixed bug when exiting machine monitor where last stepped instruction in debugger window would be over written.

29 November – Version 2 of Z64K only

  • Update Machine monitor output to correct valueswhen stepping through cycles or instructions in the open IO area.
  • Greatly improved speed and memory usage when executing a huge number of debugging cycles in machine monitor.
  • Fixed overflow bug that caused machine monitor to freeze if disassembling entire memory.

25 November – Version 2 of Z64K only

  • Updated VDC model to partly emulate behaviour of VDC register 27 value > 0 in multicolour bitmap as discussed here.

22 November – Version 2 of Z64K only

  • Included progress bar of filter setup when reSID is selected.  Save the filter tables into the config folder for quicker setup of filtersnext time emulator is started  with reSID enabled.
  • Added an option which isavailable in settings to use the WIP reSID engine. It is based very close to the current VICE reSIDemulation. Note: Emulator will freeze for a few seconds while the filters are being calculated when reSID is first selected.

18 October – Version 2 of Z64K only

  • Option to dump all ofPIA memory to a file.
  • Option to save General and Sound Settings

16 October – Version 2 of Z64K only

  • Option to disable sound chip.

15 October – Version 2 of Z64K only

  • Removed code that caused sound buffers to be dropped.

11 October – Version 2 of Z64K only

  • Option to disable multithreading screen rendering (General global settings)
  • Options to select rendering method and to disable software rendering. (General global settings)
  • Option to select exact 50/60hz mode for VICII (Model settings)
  • Numpad joystick recognises 0 as fire in addition to right CTRL.

27 July – Version 2 of Z64K only

  • add soundrate, soundbufsize and VICIIpalette commandline options

26 July – Version 2 of Z64K only

  • Include Atari 2600 select option keys in hot key help.
  • Add Game Select and Game Reset buttons into Atari 2600 toolbar.
  • update 856x versions of VICII behavior when switching from bitmap to  text mode as seen in VICE test repository modesplit test program.
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