Altirra 1.9 Test 34 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.

Interlacing should work in PAL; it doesn't seem to work in NTSC. Haven't looked into why yet, although interlacing on Atari is touchy (it involves forcing ANTIC+GTIA to generate an even less compliant video signal than it already does).

Download: Altirra 1.9 Test 34
Source: Here