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2.2.1 / 18-12-2023





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average rating is null out of 5
average rating is null out of 5

Denise is a cycle accurate and platform independant c64 & amiga emulator with CRT shaders, runAhead, drag'n'drop and command line support. It also has fast loaders such as ProfDOS, PrologicDOS, DolphinDOS, ProSpeed 1571, Turbo Trans and 1571 floppy emulation. 

Lastly, it even supports Dynamic Rate Control, Light Guns/Pens, GunStick, Mouse 1351, Mouse Neos, Paddles...


Windows: XP+

Most Recent Changes


  • Fixed spanish translation


  •  added D3D11 driver

  •     openGL has bad VSYNC/VRR behavior on Windows 11 (replace it with D3D11: Options->Video->Driver)

  •     ported internal and external openGL shader to D3D11 

  • added italian translation (thanks to Luigi)

  • added an option to rotate the screen (90°/180°/270°)

  • added an option to force a single instance when opening another instance from frontend loader or file explorer

  • fixed Amiga basic volume (louder)

  • improved 1571 emulation

  • added C64 cartridges: Comal-80, Silverrock, RGCD

  • added a more easy way to set stereo separation (Audio -> DSP)

  • added tapes to swapper (mixed disc/tape swapper)

  • added option to decide if manual warping stops automatic warping until next restart

  • added more options to control the screen aspect ratio

  • added button/hotkey to crop the outer frame after resizing or changing "aspect ratio" or emulated border


  • add drag'n'drop overlay

             files can be inserted into additional drives faster

             files can either only be inserted or inserted and restarted

             multi file support

  • fix: Wasapi didn't work on some audio hardware  

  • thanks to all translators: Ben, Ulgon, Ferenc, Muzza


  • greatly improved accuracy, thanks to amilo3438, vAmigaTS, CPU Tester, AW182

  • ~15% speed up

  • fix: Drive LED sometimes does not turn off

  • display tracks more clearly

  • add IPF, DMS, EXE and encrypted kick rom support

  • add RTC

  • add multi file support for any-loader (fill DF0-3 in one go)

  • show power LED in status line

              colors for power and drive LEDs depend on the model

              click on power LED to select audio filter


  • fix: multi SID UI not updated correctly from config

  • fix: sometimes crashes when changing speeder

  • add cartridges: Dinamic, Diashow Maker, Super Snapshot V5

  • add option to intensify pseudo stereo (now also works with same SID models)


  • Added Amiga emulation: A1000 (OSC/ICS), A500 (Full OCS), A500 (ECS Agnus, OCS Denise)
    RGB or S-Video with PAL/NTSC color encoding, border cropping
    support all global features like: runAhead, savestates, G-Sync, configs, Warp, JIT polling, shader
    up to 4 disk drives with acceleration option
    Chipram, Slowram, Fastram
    list disk content in UI
    AROS firmware is preinstalled
    motor controlled auto warp
    drive sounds
    support custom frequencies like B.C. Kid (56.4 Hz)
    if you only want to use one of the two emulators, Amiga or C64 core can be hidden

  • emulator now boots automatically after power onSplash screen can be disabled
    emulator remembers which core was used last

  • disk swapper can be filled faster due to multiple selection of filesfiles from archives can also be added quickly
    if requested disk swap position is not prepared, emulator guesses the disk based on requested position and the currently inserted disk

  • windows: prevent App minification when focus loss in fullscreen

  • C64: add option to combine Virtual Device Traps (instant load first file) with floppy speeder

  • C64: improve drive motor controlled auto warpadd option to stop auto warp when software requests input, because
    some games stop drive motor too late and warp runs too long, what could lead to the loss of a life

  • C64: support magicdesk CRT's with broken header

  • C64: fix runahead slowdown with REU/GeoRAM when using a lot of memory, e.g. REU 16 MB

  • Mice and other mouse-controlled devices, such as Lightguns, can now be configured with one click


  • Mouse CapturingIn order to operate the Amiga/C64 mouse, it must first be captured. The middle mouse button is designed for this purpose by default. Of course, another key or key combination can also be used for this.
    Press the "Hotkeys" button under Control / Amiga Configuration. A double click on the first entry "capture mouse" allows you to assign a new key(s).

  • Dutch Translationsomeone created a ticket and offered a Dutch translation for Denise. Unfortunately, I reacted too late
    and the creator certainly never read the answer. If you're reading this. Yes, I am interested and in other languages too, of course.

  • VRR (G-Sync, FreeSync)[Windows] keep in mind that the old DirectX9 video driver can apply VRR only in "exclusive" fullscreen (not in windows, not in normal fullscreen)
    [Windows] for VRR you should select openGL driver in Denise. So it works in window and fullscreeen mode
    [Linux,macOS] keep in mind that VRR works only in fullscreen mode [not an emulator limitation]


  • thanks for the countless tests and suggestions

  • thanks for spanish translation

  • tape loading sounds (playing as audio cassette)

  • fixed a bug for windows UI not listing all addresses for multi SID's in drop-down list

  • faster loading of floppy drive profile with a lot of stepper WAV's for each tracknewtronics drive sound profile no longer blocks emulation on first start

  • added option to hold autofire a little bit longera few games benefit from it, applies to all active Turbo functions
    hint: some autofire compatible joysticks do this

  • added option to prioritise Controlport over keyboard and vice versadouble assignments are temporarily inactivated
    e.g. using cursor keys as joystick replacement


  • added newtronics drive sound profile [thanks to enigma]

  • precise FPS counter and speed selection menudefine a custom speed
    define decimal place and refresh interval for FPS counter

  • added option to render in a separate thread [threaded renderer]improves VSync for non standard refresh rates, like 50.125 Hz
    new default setting, because most reliable

  • added option for adaptive sync (not to be confused with VRR)automatically selects the best sync option for requested emulation speed
    outperforms threaded renderer, but it needs more attention
    first it needs threaded renderer to be disabled
    need to detect correct refresh rate (use new sync hotkey to confirm if it fits)
    refresh rate detection works for primary screen only (at the moment)
    threaded renderer will be enabled automatically if display refresh rate differs from user requested emu speed
    skips frames when user requested emu speed is a multiple of display refresh rate

  • fixed jerky scrolling for Linux and macOS

  • added option to change the size of the window in the correct aspect ratio

  • added option to emulate in a separate thread besides User Interfaceunblocked audio/video when browsing the file dialog or moving/sizing window

  • fix support for VRR displays (G-Sync/FreeSync)reduce input lag by 20 ms (PAL)
    don't forget to enabale VRR in your monitor OSD or display software
    set display refresh rate to maximum
    don't forget to disable VSync in emulator
    Linux and macOS don't support VRR in window mode (not an emulator problem)
    old direct3D9 driver in Denise support it only in exclusive fullscreen
    use openGL in Windows (supports VRR in window and fullscreen mode)
    when changing the emu speed, within the VRR interval, the scrolling remains soft
    without adjusting the display refresh rate you can switch between 50.125 Hz (PAL) and 59.826 Hz (NTSC)

  • using revision 1/2 kernals when selecting old VIC'sonly happens if standard firmware is selected

  • show tape content in User Interfacestart files without manual fast-forward
    fast-forward to selected file without autostartig it
    Virtual Device Traps: load tape files (PRG or Turbo Tapes) instantly

  • added autofiretypical or self-firing continuous fire (superimposed by a press on the fire button)
    turbo fire for left/right directions (shaking games)
    adjustable autofire frequency

  • added option to allow opposite directionsby default, simultaneous pressing of opposite directions (left<>right, top<>down) is ignored

  • added support for second fire button (Cheetah Annihilator)

  • added tape drive soundslike floppies, you can add your own sound profiles
    you can send me new profiles and I will integrate them permanently with the next release

  • FreeBSD support

  • macOS M1 support

  • a lot of fixes


  • P64 support

  • 1541, 1541C support

  • 1570/1571 supportsupport of D71 / G71 / P71 formats
    Burst Modification

    MFM supportP64
    G64 (U-II+/U64 compatibility mode)

  • Floppy RAM expansions and parallel cable

  • Floppy FastloaderSpeedDOS
    DolphinDOS v2, v3, Ultimate compatible
    ProfDOS v1, R3, R4, R5, R6
    PrologicDos Original and Classic
    Turbo Trans with 512k Ram Disk ( includes Turbo Access )
    ProSpeed 1571 GTI v2.0
    Expansionsport cart for ProfDOS, PrologicDOS, Turbo Trans
    Userport plug-in for DolphinDOS, ProfDOS, PrologicDOS, ProSpeed 1571

  • bugfix: switch to custom resolution in fullscreen

  • auto insert newly created disks or tapes

  • increase App initial loading time

  • add drive soundssamples provided by [thanks to enigma and Trackers World]
    support for multiple profiles
    simply create own WAV folders and select it

  • support command line start of disk entries, besides Load "*"Frontends like Assembly64 support this

  • Virtual Device Trapsfast load first file
    can be combined with Warp

  • add hungarian translation [thanks to Ferenc]

  • add "Just in time" polling for faster input recognition

  • Catalina and above prompts to allow keyboard monitoring if not already so

  • display CPU JAM in status bar

Show Previous Changes


  • add Final Cartridge 3 support to EF³

  • add DataBlast, SwiftLink, Turbo232 emulationBBS support (use tcpser for virtual modem)
    only virtual IP based connections, no connections to physical COM ports

  • fix VIA Latch Bug (thanks to enigma)

  • prepare fullscreen with custom resolution and refresh rate

  • auto fast forward (warp) on startupstop when first file was loaded
    or fast forward while drive (tape, floppy) is running

  • Bugfix: creating new disks/tapes on macOS Catalina and above was not possible


  • save/load additional settings files for a lot of purposes, likedefine keyboard inputs for individual games one time only
    prepare different C64 models
    prepare individual Multi SID configurations

  • rework sub-menu handling within configuration window

  • rework status bar (Drive LED's, Tape control)status bar is switchable via Hotkey in windows/fullscreen (Options / Hotkeys)
    show LED for EasyFlash and EF³

  • add UI for custom RAM init patterns

  • load savestates per drag'n'drop or from File Explorer

  • support to paste clipboard or copy screen to clipboard

  • fix OpenGL 1/4 screen BUG for newer macOS versions

  • Gmod2 cartridge mapper (i.e. Sams Journey)support Flash and Eeprom writes

  • Magic Desk cartridge mapper

  • Final Cartridge I, II, Plus, III, III+

  • Simons Basic, Warp Speed

  • Atomic Power, Mach5, Pagefox, Ross, Westermann

  • expansion port expander to use REU + Retro Replay together

  • GeoRAM

  • EasyFlash³hotkey for menu switch
    support Super Snapshot 5, Retro(Nordic) Replay, Atomic(Nordic) Power
    Kernal replacement
    optional 64 MBit modecreate a single EF3 file (slot 0) from all slots during emulation
    strip down single EF3 file (slot 0) to all slots (Note: multi CRT file writing can trigger a false positive in your security app)


  • fix TAPE emulation (broken in 1.0.9)

  • nice performance improvement

  • load follow-up disks via hotkeymap hotkeys for disk 1, 2, 3, ...
    map disk 0 for reinserting boot disk
    emulator guesses file name for requested disk and insert it
    override guessing of file names by assigning disks in "Disk Swapper"


  • runAhead

  • add faster scanline renderer (optional)adequate for games with higher runAhead
    inadequate for some demos, which depend on cycle renderer

  • emulate missing VIC-II models

  • improve SID emulationmultiple filter models
    pseudo stereo
    8x SID support
    DSP: Bass Boost and Reverb

  • write audio output to WAV file

  • PRG can be loaded as D64

  • performance improvements

  • thanks to user AW182 for the countless tests and reports


  • added Retro/Nordic Replay support

  • added macOS DMG installer [thanks to Retrofan for background image]

  • added xInput emulation for Windows rawInput driver [XBOX Controller, xMode devices]

  • fixed a few input handling bugs

  • added slider for analog trigger point when using for digital inputs

  • added help output in console: Denise -h

  • refactored GTK2 to GTK3 for Linux port

  • added hotkey to switch controller ports

  • added hotkeys to trigger power and soft reset

  • reworked menu structure and moved some settings in order to find them faster

  • moved some global hotkeys to emulator specific hotkeys, i.e. load/save states, SID control

  • reworked firmware view

  • added posibillity to swap in CHAR roms during active emulation

  • reworked software view

  • show placeholder picture when emulator is opened but still not running an emulation [thanks to Retrofan]

  • autoload for all media types with D64/T64 viewer in file dialog

  • added possibility to associate files with Denise for macOS

  • emulated left vertical line anomaly in overscan area

  • added confirmation dialog to write on disk/tape/flash permanently

  • open files as read only from OS point of view, if not able to open it in read/write mode

  • added possibility to customize D64 preview box in file dialog

  • improved D64 preview generation in UI to better match original


  • fixed a critical bug that caused OSX builds to use illegal instructions for some architectures

  • added EasyFlash support

  • fixed widget layouting, when app/text scaling is activated by Windows OS

  • added screenshot generation for testbench

  • added double step function of drive head motor (Primitive 7 Sins)

  • added drive motor deceleration

  • added slider to adjust drive motor speed and wobble

  • removed read latch from drive mechanic, only VIA is latching readed byte

  • distinguish between physical and logical tracks for disk content preview in UI

  • fixed a rare bug in gpu driven RF Modulation, when disabling luma 'fall' but not 'rise'

  • added a new aggressive fast-forward mode, which disables VIC-II Sequencer for a few frames

  • combined key presses (ALT + W) don't trigger single keys when partially releasedi.e. if ALT is released a few milliseconds sooner than 'W', it doesn't print a 'W'

  • bugfixed RawInput: some joystick types were not registered

  • unplugged joypads will not be forgot anymore

  • transfer file names of loaded software to the savestate description field

  • added diagonal joypad directions as optional virtual keys to activate it by single keyboard stroke

  • added new application icon [thanks to Retrofan]

  • added new application logo in project pages [thanks to Retrofan]

  • added japanese translation [thanks to Ulgon]

  • launch associated files in fullscreen (from command line, or file association)

  • fixed a few minor macOS display bugs


  • polished OS X UI ... looks ok now for Mojave dark theme

  • Windows command line support is now independant from working directory of caller

  • added option to manually save settings

  • reworked expansion port emulationadded REU support with additional 8k rom
    added Action Replay MK2, MK3, MK4, V4.1 and higher
    support Cartridge bin format

  • GIT repo is public now: Bitbucket

  • simplified build process


  • drag'n'drop support

  • firmware paths will be saved and applied for loaded save states

  • prepare multiple firmware configurations and switch between them

  • auto detect language and keyboard layout during first start

  • added alternate configuration for input elements (i.e. shift left/right and plus )

  • command line support + testbench support

  • color palette selection and creation

  • color spectrum generation by Pepto's new findings (Colodore)

  • added integer scaling

  • cpu driven CRT emulationpal delay line
    chroma subsampling
    hanover bars
    rf modulation

  • gpu driven CRT emulation (OpenGL only at the moment)like cpu with more effects
    Sinc FIR lowpass filter for bandwidth reduction
    Vic-II luma glitches
    luma/chroma noise, random line offset
    shadow mask, aperture grille, cromaclear
    radial distortion

  • fixed a lot of misspellings in german translation (thanks Arndt)


  • added Dynamic Rate Controlsmooth audio + video at the same time
    rewrote all audio drivers
    added xaudio2, wasapi exclusive mode
    show audio buffer usage statistics
    added hotkey to enable/disable all sync options at once

  • disabled emulator input recognition when minimized

  • separated c64 and amiga sub menus from each other


  • reduced drive thread cpu usage greatly (a extra core has consumed permanently 100%)some system settings, which consumes additional cpu power, are highlighted

  • improved user input capture processit's now easier to assign multiple inputs at once (i.e. Alt + Shift + S)
    it's now selectable to overwrite (default) or append an existing mapping

  • added kernal, basic, char and 1541 bios filescan be replaced by custom versions


  • added more control port devicesmouse 1351, mouse neos, paddles, magnum light phaser, stack light rifle, inkwell lightpen, stack lightpen
    dual Gun Sticks support

  • multi mice support [for windows raw input driver only at the moment]fast swap of connected control port devices

  • keyboard auto assignable [free assigning of single keys is still possible]french, german, uk and us keyboard layouts supported
    macOS keyboard layouts supported
    virtual keys added [means: single key triggers key combination of emulated keyboard ]

  • savestate supportsave/load your program at any position ( even possible while disk/tape is loading )
    method 1: standard save/load file dialog
    method 2: hotkeys for save / load / slot up / slot down
    assign save slots per game
    Note: hotkeys can be assigned not only to keyboards

  • added custom ic logic (C64C)

  • french translation addedthanks Ben

  • bugfixes[sid] fixed osc3 register read
    [sid] accidently delayed Triangle/Sawtooth output for 6581 instead of 8580
    [via] reworked shift emulation: fixes vmax4 galaxian thunder mountain

  • read below, i have added more usage hints for savestates, keyboard layouts and control port devices


  • added floppy 1541-II supportsupport for d64, g64 images
    emulates up to 4 drives
    correct drive <-> drive synchronisation (e.g. Maverick Dual Drive Copy)


  • added tape supportincludes write emulation
    counter calculation + complete derivation of formula

  • fixed some undocumented opcodes: arr, sha, shs, shx, shy

  • fixed sei/cli behaviour while cpu enters wait state

  • rewrote vic sequencer againsequencer can react now on changed x-scroll during scanline
    implemented all known pixel delays for register changes [ thanks to vice team ]
    added sprite crunching
    differs between 65xx and 85xx chip revisions
    added grey dot bug emulation

  • improved cia codefixed delays for control register changes
    differs between new and old cia
    improved tod emulation
    improved keyboard matrix emulation [ thanks to vice team ]


  • added t64, prg, p00 support

  • included C64 TrueType v1.2/Style for prg listing

  • loaded prg or self written code can be saved as prg file

  • rewrote vic sequencer ... fixes hyper screen demo: Intro Collection (19xx)(Jewels)

--0.9.9 beta--

  • initial release

  • c64 cartdrige emulation only

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