Créé par Avery Lee (l’auteur de VirtualDub), il s’agit d’un émulateur d’Atari 8 bits (800/800XL/130XE) disponible en 32 et 64 bits. Il dispose de beaucoup d’options ainsi que d’une bonne compatibilité. Il prend en charge les jeux protégés conformément à l’émulation.

[changes]
– Display: Due to change in bloom algorithm, bloom settings have been reset to avoid conflicting with earlier versions.
[features added]
– Cartridge: Added support for J(atari)Cart (104-111) and DCart (112).
– Cassette: Added Vorbis decoding support.
– Cassette: Added support for paired .data.cas+.audio.ogg files for more compact tape storage.
– Cassette: Added Turbo D support.
– Cassette: Added FSK speed compensation and crosstalk reduction options.
– Command Line: Added /cleardevices, /adddevice, and /removedevice switches.
– CPU: Added 23x multiplier option for 65C816 mode.
– Debugger: Added keyboard shortcuts to memory window.
– Debugger: Ctrl+Alt+click now reports scrolling offsets, pixel addresses, and VBXE information.
– Debugger: Added .vbxe_xdlhistory command.
– Debugger: .diskdumpsec command can now display INTERNAL text.
– Debugger: FDC and DISKEMU logging channels are now off by default.
– Devices: Added Microbits MPP-1000E modem.
– Devices: Added parallel-to-serial adapter device.
– Devices: Added 820, 825, 1020, 1025, and 1029 printers.
– Devices: Added Remove/Settings commands to context menu.
– Devices: Added 850 printer port support.
– Devices: Added $D600-D63F address range option for Covox.
– Devices: Added option for PBI-based CIO devices instead of using a hook page.
– Disk: Super Archiver emulation now supports slow speed.
– Disk: Added emulation of the BitWriter add-on for the Super Archiver.
– Disk: « Show disk image file » drive menu option now works for mounted images within .zip archives.
– Disk: ATX double density support is now enabled by default.
– Disk Explorer: Added MAC/65 file viewing mode.
– Display: Added support for deinterlacing interlaced video.
– Display: Added color correction support for targeting displays that use raw gamma 2.2 or 2.4 instead of sRGB.
– Display: Added emulation of long-persistence monochrome monitors.
– Display: Enhanced CIO text mode rewritten with screen editing, control character, and pass-through support.
– Display: Added adjustable PAL phase.
– Input: Light pen/gun is now insensitive to dark areas on screen.
– PerfAnalyzer: Added import support for Atari800 5.x monitor traces.
– PerfAnalyzer: Add « Go To Tape Editor » option when right-clicking on tape channel.
– Printer: ATASCII special characters are now converted to Unicode equivalents.
– Printer: Generic Printer (P:) device now supports translation modes for port output.
– Simulator: Added a speed option to take periodic rewind snapshots.
– Tape Editor: Added Select All (Ctrl+A) and Deselect (Ctrl+Shift+A).
– Tape Editor: Added FSK spectrogram view option.
– UI: Added screen reader support for word granularity.
– UI: Improved screen reader support in message boxes.
– UI: Added option to force program to efficiency or performance cores.
– UI: Added tool to scan for global hotkeys that block keyboard mappings.
– VFS: Improved handling of Unicode filenames within .zip archives.
[bugs fixed]
– AltirraOS: Fixed P: compatibility issues with the 1025 printer.
– AltirraOS: P: device IDs are supported in XL/XE/XEGS mode.
– AltirraOS: K: and C: now support forced read mode (ICAX1 bit 0).
– AltirraOS: Modified cassette routine SKCTL usage for compatibility with PokeyMAX 4.
– AltirraOS: Fixed bug where checksum errors were not consistently returned from SIO.
– AltirraOS: Improved compatibility of C: handler with block control bytes other than $FA/$FC/$FE.
– AltirraOS: Improved compatibility of RBLOKV internal vector.
– AltirraOS: Carry flag is now checked for error after invoking cassette boot run address.
– AltirraOS: Boot screen is no longer re-displayed after printing Boot Error.
– ANTIC: Fixed playfield data read on cycle 106 overlapped with a refresh cycle and a pulled-up data bus.
– ANTIC: Added emulation of abnormal DMA caused by turning off playfield DMA mid-line.
– ATBasic: Fixed ICAX2Z handling issue preventing printing in sideways mode.
– Cassette: Fixed framing errors not being reported from during unaccelerated tape reads.
– CPU: Fixed 65C816 BRK instruction writing to wrong addresses in native mode with stack outside of page 1.
– Debugger: Register (r) command can now set S high byte in 65C816 native mode.
– Debugger: Fixed panes not adapting properly after debug font change if undocked.
– Devices: SuperSALT Test Assembly now supports External Audio test.
– Devices: Fixed SuperSALT Test Assembly bidirectional clock to audio input path.
– Devices: Fixed 8048 timer interrupt bug that prevented the 1450XLD parallel disk controller from shutting off the spindle motor.
– Devices: Fixed 32-in-1 handling of Select key and selection is no longer reset when bypassing menu with Esc.
– Devices: SIO and CIO acceleration now better supports the Break key.
– Display: Fixed incorrect gamma for Adobe RGB color matching mode with screen effect acceleration enabled.
– Disk: Adjusted ATX density detection to allow for enhanced density disks with no non-boot sectors on track 0.
– Disk: Fixed handling of DRQ bit when reading double density ATX disks.
– HLE: Improved overflow handling accuracy of FP acceleration handlers.
– IDE: Read Verify command fixed.
– Input: Keyboard input bindings are now released on key up even if Alt is pressed down in between the key down and key up.
– Printer: Fixed printer output going to printer window instead of printer port with P: CIO hook enabled.
– Save States: Fixed issue where sometimes P/M graphics would be missing after loading a state if P/M DMA was disabled.
– SCSI: Accept but ignore vendor command $0C to work around MIO 1.1 firmware issue.
– Simulator: Fixed issue where internal BASIC could sometimes be enabled on a 1200XL.
– Tape Editor: Reduced CPU overhead when updating checksum status with SIO decoded data capturing enabled with large blocks.
– Tape Editor: Fixed Ctrl+O shortcut.
– Tape Editor: Improved baud rate determination when converting to standard blocks.
– UI: Added workaround for blank window label on Windows 11 taskbar.
– UI: Added extra checking for Explorer’s extended archive support, which doesn’t support normal drag and drop interfaces.
– UI: Fixed bug where changing the hardware type in Configure Settings could also switch profiles.
– VBXE: Overlay and attribute map addressing are no longer reset at vertical blank.
– VBXE: Added emulation of one-scanline vertical offset for NTSC.
Télécharger Altirra (XP/Vista) v3.91 Final (5.7 Mo)
Télécharger Altirra v4.31 Stable (7.0 Mo)
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