VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, almost all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.

Change list:
VICE, the best C64 emulator available for many platforms today got an update to version 2.3.

Among the changes the VICE developers have also implemented the emulation of the Toshiba T6721A speech chip and it is now featured in the plus/4 emulator.

Furthermore the ReSid module got a major update.
Some other changes are:

* added x64sc, the accurate C64 emulator;
* drive improvements, including weak bit emulation;
* CRT Emulation (former “PAL emulation”) is now available regardless of video mode or -chip and works in all emulators;
* added “True aspect ratio” option;
* sound buffer overflows reduced and the error replaced with a warning;
* various monitor improvements (io details, expansion port status …);
* removed little used Emulator ID feature;
* VIA wrap handling rewritten to fix problems with timer 2;
* added autostart option to do LOAD ,8 instead of ,8,1;
* improved accuracy of CIA interrupts. (6526/6526A selectable).

ReSid changes are:

* emulation of all known pipeline delays for full cycle accuracy;
* new shift register model based on revectorized die photograps;
* accurate DAC models based on revectorized die photograps;
* emulation of floating waveform DAC input for waveform 0;
* advanced 6581 transistor level filter model based on revectorized photograps.