Original Motorola 68000 family implementation of the Macintosh Toolbox operating system executes system calls using that processor's illegal opcode exception handling mechanism.
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10 Facts About Macintosh Toolbox
1.
2.
However, the Macintosh Toolbox was composed of the less commonly used subroutines.
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3.
The Macintosh Toolbox was defined as the set of subroutines which took no parameters within the A-trap, and were indexed from a 1024-entry, 4-kilobyte dispatch table.
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4.
Macintosh Toolbox functions implemented in native PowerPC code have to first disable the emulator using the Mixed Mode Manager.
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5.
Macintosh Toolbox is composed of commonly used functions, but not the most commonly used functions.
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6.
The Macintosh Toolbox encompasses most of the basic functionality which distinguished the Classic Mac OS.
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7.
Much of the Macintosh Toolbox is implemented in ROM, alongside the computer's firmware, it was convenient to use as a bootloader environment.
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8.
In conjunction with resources stored on the ROM chip, the Toolbox can turn the screen gray, show a dialog box with the signature "Welcome to Macintosh" greeting, and display the mouse cursor.
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10.
In Mac OS X, the Macintosh Toolbox is not used at all, though the Classic Environment loads the Macintosh Toolbox ROM file into its virtual machine.
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