Altirra 1.6 is released.Altirra is an Atari 8 bit Emulator on the Windows/DOS platform.Altirra emulates several models of the 8-bit Atari computers. This includes the the 800, 800XL, and 130XE versions. It has a lot of options, and compatibility is decent especially given the emulator's early stages. It also supports some copy protected games properly in emulation.

Altirra 1.6 Changelog:
[features added]
* Debugger: Added profiler.
* Debugger: Added support for loading CA65 labels.
* Debugger: Added verifier to catch possible coding errors.
* Debugger: Added support to view extended memory to some commands and panes.
* UI: Added option for controlling vertical sync lock.
* UI: Added /opengl command line switch.
* UI: BASIC ROM is now noted on window caption.
* UI: Window position is saved on exit.
* UI: Added /debug switch to launch in debugger mode.
* UI: Added /f switch for full-screen mode.
* UI: Added .car extension to Open Image dialog.
* UI: Input maps can now be cloned.
* UI: Input maps can now be bound to a specific game controller index.
* UI: Create disk dialog now has entries for standard disk formats.
* UI: Added ability to paste text from clipboard.
* UI: Moved warm reset to F5, bound Help to F6 and Break to F7, and merged Run into F8 to match other emulators.
* UI: Added program icon.
* Simulator: Added option to fill memory with a psuedorandom pattern on cold boot instead of zeroes.
* Simulator: Added support for 65C816 high memory at banks $01-03.
* POKEY: Increased playback sampling rate to 44KHz.
* POKEY: Added option to toggle non-linear mixing.
* POKEY: Added option to toggle individual sound channels.
* POKEY: Implemented keyboard overrun bit.
* VBXE: Register window can now be switched between $D6xx and $D7xx.
* Disk: Added support for 1050 drive dual density format.
* Disk: Added support for XF551 drive high speed commands.
* GTIA: Added a stronger level of NTSC artifact emulation.

[bugs fixed]
* Fixed command line parsing and added several new switches.
* HLE: Fixed math pack issues preventing Atari Basic ATN(), INT(), and SQR() from working.
* HLE: Fixed handling of BASIC enable/disable on warm reset.
* LLE: Improved math pack implementation.
* ANTIC: Playfield DMA wasn't properly shut off on cold reset.
* ANTIC: Improved emulation of mid scan line DMACTL changes.
* ANTIC: Reset line now resets position counters.
* ANTIC: Emulated single cycle glitch in VCOUNT at the end of a frame.
* ANTIC: Implemented delay for changes to CHBASE to take effect.
* POKEY: Adjusted timing of STIMER and timer rollovers.
* POKEY: Retuned filters and non-linear mixing curve.
* POKEY: Fixed behavior of SKSTAT serial overrun bit.
* GTIA: Added option for displaying full PAL height when extending display past scan line 239.
* GTIA: Fixed display of beam position when single stepping with VBXE enabled.
* Debugger: Fixed bug where history window didn't allow scrolling to the bottom via the slider.
* Debugger: History window now always shows last executed instruction.
* Debugger: History window now flushes and rebuilds the tree when the history window rolls over.
* Debugger: "Toggle read/write breakpoint" in the memory window was using the wrong address.
* Debugger: Disassembly window now tracks 65C816 M/X/E state.
* Debugger: .history command was using wrong register state for decoding indexed effective addresses.
* Debugger: Fixed incorrect index register values in Registers pane in 65C816 emulation mode.
* Debugger: Fixed disassembly of JMP (abs,X) and JSR (abs,X) instructions.
* CPU: XCE instruction no longer sets M/X bits when staying in native mode.
* CPU: Fixed bank used by JML, JMP (abs), and JMP (abs,X) instructions in 65C816 mode.
* Disk: Added support for reading broken DD disks that have full 256 byte boot sectors.
* Disk: SIO acceleration hook now sets SKCTL correctly.
* UI: Fixed issue where full-screen mode didn't always cover the entire screen.
* Simulator: Shortened delay to releasing OPTION on startup.

Download: Altirra 1.6
Source:Here