Basilisk II

{{Short description|Open-source 68k Macintosh emulator}}

{{ infobox software

| logo =

| screenshot = Basilisk snapshot9.png

| caption = Screenshot of Macintosh System Software 7.5.5 and Finder running in Basilisk II

| developer = Christian Bauer, Nigel Pearson (macOS port), Gwenole Beauchesne (JIT version)

| released = {{Start date and age|1999}}

| latest_release_version = 1.0 R5

| latest_release_date = {{start date and age|2006|03|01}}

| discontinued = yes

| operating_system = Cross-platform

| genre = Emulator

| license = GNU General Public License

| website = {{official url}}

}}

Basilisk II is an emulator which emulates Apple Macintosh computers based on the Motorola 68000 series.{{cite web | url=https://uk.pcmag.com/macintosh/8166/how-to-emulate-an-old-mac-on-a-new-mac-or-pc | title=How to Emulate an Old Mac on a New Mac or PC | publisher=PC Magazine | access-date=2020-05-11 | first=Sascha | last=Segan | date=23 January 2014}}{{cite web | url=https://www.techradar.com/how-to/how-to-run-old-software-and-games-on-your-mac | title=How to run old software and games on your Mac | publisher=TechRadar | access-date=2020-05-11 |first=Luis |last=Villazon |date=5 December 2016}} The software is cross-platform and can be used on a variety of operating systems.

Christian Bauer (developer of a Mac 68k emulator ShapeShifter for Amiga) released the first version of Basilisk II in March 1999. The emulator was expected to be highly portable across several computing platforms{{cite magazine |last=Němec|first=Luboš |date=July–August 1999|title=Basilisk II v0.5|language=cs|magazine=Amiga Review|publisher=Atlantida Publishing|issn=1211-1465|issue=46–47|pages=36–37}}{{rp|36}} and provided some improvements in comparison to ShapeShifter - e.g. no limit for number of emulated disks, improved CD-ROM support and support for the host file system.{{cite magazine |last=Compton|first=Jason |date=March 2000|title=Basilisk II-0.8.1|url=https://archive.org/details/AmigActive_Issue_06_2000-03_Pinprint_GB/page/n13/mode/1up|magazine=AmigActive|publisher=Pinprint Publishing|issn=1467-3533|issue=6|page=26}} However, early reviews highlighted several issues like difficult configuration and limited compatibility with recommendation of ShapeShifter as a better choice for Amiga users.{{rp|37}} Newer releases mitigated these problems, 2005 review of the MorphOS version noted only slow CPU emulation (in comparison to built-in 68k CPU emulation for Amiga applications in MorphOS) as a major issue.{{cite magazine |last=Schmitz|first=Ingo|date=July–August 2005|title=Basilisk II|magazine=Amiga Future |language=de|publisher=APC&TCP|issue=55|pages=24–25}}{{rp|25}}

The latest version of Classic Mac OS that can be run within Basilisk II is Mac OS 8.1,{{cite book |last=McCallister |first=Michael |date=2006 |title=SUSE Linux 10 Unleashed |url=https://books.google.com/books?id=P_mbgQfn3ZAC&pg=PA196 |publisher=Sams Publishing |page=196 |isbn=0672327260}} the last 680x0-compatible version, released in January 1998. Mac OS 8.5, which came out nine months later, was PowerPC-only and marked the end of Apple's 680x0 support.

Ports of Basilisk II exist for multiple computing platforms, including AmigaOS 4, BeOS, Linux, Amiga, Windows NT, macOS, MorphOS and mobile devices such as the PlayStation Portable.

Released under the terms of the GNU General Public License, Basilisk II is free software, and its source code of is available on GitHub.{{Cite web | url=https://github.com/cebix/macemu | title=GitHub - cebix/Macemu: Basilisk II and SheepShaver Macintosh emulators | website=GitHub | date=9 May 2020}}