#Mac 68k emulator mac os#
#Mac 68k emulator Patch#
#Mac 68k emulator software#

This is a considerable slowdown on any machine that has the Video Startup extension.

Video Startup: Have an AV machine? Watch TV via the Video Startup extension? The system task is patched from PPC to 68k.

#Mac 68k emulator Patch#

DonвЂ™t know why, but itвЂ™s replacing PPC code with a 68k patch as well.

Sound Manager (the version installed with QT 3.0) patches QuickDraw.

QuickTime 3.0 actually patches core native QuickDraw routines with 68k code. QuickTime 3.0 is a lockout of the older machines вЂ“ out of convenience and the desire to push people to a new processor, not because the machine cannot perform the tasks. So why doesnвЂ™t it work on 68k machines with no FPU? (Because the emulator doesnвЂ™t have an FPU either вЂ“ but weвЂ™ll still execute the bulk of the QuickTime code under it anyway).

QuickTime 3.0 вЂ“ Supposedly only good for PPCs, is written almost entirely in 68k code.

Contextual Menu Extension вЂ“ Pop up menus are all in 68k.

This standard help dialog, including the menu bar, is written entirely in 68k code.

#Mac 68k emulator software#

A primary and necessary part of the system software under 8.x requires the 68k emulator in order to do any of the myriad QuickDraw functions that it patches (Some of which are PPC codes, repatched with 68k code by the Appearance extension).

Appearance вЂ“ This extension was originally written almost entirely in 68k code.

#Mac 68k emulator mac os#

Mac OS Extensions That Still Use 68k Code Think about what these extensions do, and think about how much OS code is still running through the 68k emulator in every cycle. HereвЂ™s the quick list of non-native extensions from Apple вЂ“ extensions that actually overwrite PPC code with 68k code on every bootup and affect a variety of actions. Unfortunately this only works in the Finder, and it only works if certain functions arenвЂ™t used. Starting with Mac OS 8.0, Apple again stated they were making their first native OS ( deja vu), finally made the Finder completely clean from 68k code, so that all kinds of finder operations including copy and search were now performed in pure native code. Apple, while first claiming a native operating system with Mac OS 7.6, was still dependent on 68k code within the System file to operate all of the Apple machines. IвЂ™m still very upset that there is a bulk of system code that requires the 68k emulator 2 just to run the system software. If Apple is going to dump the 68k processors, they need to dump the 68k code altogether. The emphasis was on running two OSes for a while and letting the customers jump ship to the PowerPC (PPC) chip instead of the phase out that took place exactly like this years ago with the Apple II series. 1 The idea was that releases would continue until 2000 вЂ“ and that the deal was that Rhapsody (later named Mac OS X) would not support 68k.ДЄs people migrated away from Mac OS to Rhapsody, the customer base would take care of the need for higher Mac OS versions. Two years ago Steve Jobs stated that the old Mac OS 8.x line would support 68k machines through the year 2000, providing updates ad infinitum as long as Apple chose to support an OS with an 8.x number. I disagree that Apple should dump the 68k code simply because they want to isolate the 68040 machines from modern use.

1998 вЂ“ Okay, kind of a flame, but really specialized.