Native Windows UI with theme support, per-monitor high DPI support, file associations, and DirectInputXInput controllers.īefore you begin Altirra is designed with emulation quality in mind, sometimes over speed and polish. Powerful debugger with label decoding, source-level stepping, conditional breakpointstracepoints, watchpoints, execution history with loopcallinterrupt folding, and profiling. Support for most popular 8-bit image file formats: ATR, ATX, ATZ, DCM, XFD, PRO, ARC, BAS, ROM, BIN, A52, CAS, SAP.Ĭontains reimplemented versions of OS, BASIC, and handler ROMs to run 8-bit software with high compatibility without needing Atari ROMs.Įmulation of over three decades of hardware expansions, including memory expansions, cartridge expansions, Parallel Bus Interface (PBI) devices, modems, and 65C0265C816 accelerators.Īccurate emulation of multiple disk drive types with options for accelerated disk loads, realistic disk timing, and drive sounds.įlexible display with Direct3DOpenGL acceleration, aspect ratio options, easy resizing, and artifacting support.Īudio and video recording, cheat trainer, DOS disk explorer with drag-and-drop, and text mode copypaste. Note: Neither the author nor the software on this page is affiliated with Atari, and there is no code or software from Atari included in the downloads.įeatures Emulates the Atari 400800, 1200XL, 600800XL, 130XE, XEGS, and 5200 systems.įull, cycle-exact emulation of all documented hardware features.īest-in-class emulation accuracy of undocumented hardware behavior, including undocumented 6502 instructions, precise DMA timing, mid-screen register changes, hardware bugs, and cycle-precise timer IRQs. If you are struck by nostalgia too or have a desire to do some Atari development, perhaps it might be useful to you, too. It also serves as a modularity test for the VirtualDub code base, from which Altirra shares some components. At this point, Ive learned a lot more about the Atari and Altirra now emulates more than I ever had or did years ago, but I still work on it periodically.

Getting the atari 5200 bios files