Altirra 2.1 Test 9

Altirra 2.1 Test 9 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 2.1 Test 9 Changelog:

This version adds the ability to copy out text. Why? Because I felt like it. To copy text, drag over the display and either press Alt+Shift+C, or select Copy from either the menu or the context menu. It also has a fix for the Caps Lock key. Now, as to some of the issues raised above: I put in the extra fixed multiple mode for scanlines because the density is too high to resample well fractionally unless you have a high resolution display. Using bicubic filtering will help here. Allowing the scanline frequency to be adjusted makes no sense because the scanlines are named after the scan lines of the display, i.e. each horizontal line drawn. This means that no real TV will ever draw less than 192 scanlines for an Atari OS display, ever, and the only way you will get more is if you have a relatively modern TV that does double scanning or more. Oh, and the scanlines also need to match the orientation of the image. I saw one "scanline" shader that drew straight horizontal scanlines across a curved display image. That's bogus. The current method unfortunately doesn't allow the width of the scanlines to be adjusted because it is done prior to rescaling. Doing it post rescaling will require a major rework of the display code, particularly because I support more than one display API. Sorry, but that's the way it's going to be for now. Also, a reminder: I generally don't include external code as a matter of policy (and I believe there would be a license conflict in this case anyway). The cartridge dumps, as far as I can tell, are incomplete. You can get it to partially run if you concatenate the MegaCart image twice to create a 128K image that can be loaded as a SIC! cart. The game decompresses and starts displaying graphics, but crashes soon after. Paste is not affected by the raw/cooked mode -- p and P are typed as if you pressed P and Shift+P on the keyboard. The reason you're seeing the uppercase result is that that's the default keyboard mode for the OS; if you press Caps Lock to change that, you'll get lowercase and uppercase. I did find a bug in the Caps Lock handling code that was keeping it from resetting the OS Caps Lock state properly and which caused it to only work every second time on my computer, which should be fixed now. Cassette tape has been requested before, and I've been doing a bit here and there over time... but as I've said before, I hated tape growing up and I still hate it now. It is specifically designed to (a) eat code and data unrecoverably and (b) waste prodigious amounts of time. For these reasons I'm not enthusiastic about recreating the authentic experience.

Download: Altirra 2.1 Test 9
Source: Here