v3.0b2

Bug fixes

• Inserting floppy disks failed to work for some file formats such as EXE files (#842).
• Fixed a bug that routed some key events to the Amiga keyboard instead of RetroShell (#842).
• The CIA panel occasionally reported idle times exceeding 100%.

v3.0b1

I’m proud to announce that vAmiga is now available as version 3.0! This update introduces run-ahead support (#836), a functionality that had recently been integrated into VirtualC64.

When run-ahead is enabled, two emulator instances run side by side: the primary instance and the run-ahead instance. The primary instance emulates the Amiga as usual, while the run-ahead instance runs several frames ahead and generates the image texture. Both emulator instances stay in sync with a time delay, and any changes in the primary instance, e.g., triggered by a joystick event, forces the run-ahead instance to be recreated. Run-ahead mode is meant for gaming as it considerably decreases the lag between an external event, e.g., a gamepad or keyboard event, and its recognition inside the emulator.

Accommodating this feature required significant changes to vAmiga’s architecture, resulting in a major update to the codebase. While these improvements have streamlined the internal workings of the emulator, they’ve also introduced some bugs - an expected outcome with such a substantial change.

As vAmiga 3.0 is currently in beta, your feedback is crucial to help me refine and stabilize the software.

Other enhancements:

• Snapshot compression (#840)
• Loading and saving memory contents (#823)
• Improved Headless app (#839)
• RetroShell as as serial port device (#820)
• Beamtrap debug feature (#817)
• RetroShell commands via the command line (-"<Command>")

Bug fixed:

• Fixed a crash when saving a machine state (#833)
• Fixed a bug in the CIA sleep logic (#819)

v2.6.2

Bug fixes:

• Some config panels crashed when pressing "Revert to…" or "Use as default".
• RetroShell Command amiga defaults was broken in 2.6.1.

v2.6.1

Fixes

• The emulator no longer crashes when loading snapshots via the Open... menu.

v2.6

This release is the first of several that mainly contain changes to the internal architecture. My longer-term goal is to port the new emulator architecture from VirtualC64 v5.0 to vAmiga, eventually enabling neat features like run-ahead. Since the architectural changes are considerable, several intermediate releases will be part of this project. The most noticeable changes of this release are related to RetroShell, as the syntax of some commands has changed.

v2.5

Same as v2.5b1, compiled in release mode.

v2.5b1

Licensing:

• The emulator core is now licensed under the Mozilla Public License v2 (#802).

Enhancements:

• A user-definable upper bound limits the size of the snapshot storage.
• Denise’s DIW logic is more accurate (#805).

Bug fixes:

• Fixed a bug related to the allocation of sprite DMA slots (#799).
• Fixed a race condition related to the SPRxCTL register (#715).
• Fixed an issue with the serial port (9-bit packets) (#803).
• Fixed a minor visual issue in the status bar that started showing up with the latest macOS release.

Internal changes:

• Large data structures are now created on the heap rather than the stack (#811).
• In debug builds, debug variables can be switched on and off dynamically in RetroShell.

ExpFPU: Merge branch 'dev'

This version of vAmiga archived the current state of FPU emulation, a work in progress.

FPU support will be removed in future releases as the emulator will focus on emulating the three classic Amiga models.

v2.4

Bug fixes:

• Fixed a crash that occurred when loading certain extended ADFs (#788)

Enhancements:

• Improved audio filter emulation (#789)
• Added support for ADFs containing less than 80 cylinders (#791)
• Added some more ROM fingerprints

v2.4b1

Enhancements:

• Improved thread synchronization (Adaptive sync)
• Warp boot support
• Code cleanup

Note:

• The deployment target has been raised to macOS 11.0 (required by std::atomic_flag).
• The app is no longer notarized, because I left the (too costly) Apple Developer Program.