SYMBOLS

0-length handle

A handle whose associated relocatable block has a logical size of 0 bytes.

1-byte complex script system

A script system that supports a writing system with a small character set (requires only 1-byte characters), but that is characterized by bidirectional or contextual text. Arabic and Hebrew are examples of complex 1-byte script systems.

1-byte extension

See: WorldScript I

1-byte simple script system

A script system that supports a writing system with a small character set (requires only 1-byte characters), has a left-to-right text direction only, and that is non-contextual. The Roman script system is an example of a 1-byte simple script system.

24-bit addressing

The addressing mode in which only the low-order 24 bits of a pointer or handle are used in determining memory addresses.

2-byte extension

See: WorldScript II

2-byte script system

A script system that supports a writing system with a large character set (requires 2-byte characters) and requires sophisticated procedures for character input. Japanese, Chinese, and Korean are examples of 2-byte script systems.

32-bit addressing

The ability of the Operating System to use all 32 bits of a pointer or handle in determining memory addresses.

32-bit clean

Said of an application (or other software) that is able to run in an environment where all 32 bits of a memory address are used for addressing.

68K application

An application that contains code only for a 68K microprocessor

See also: fat application, PowerPC application

68K microprocessor

Any member of the Motorola 68000 family of microprocessors.

68K-based Macintosh computer

Any computer containing a 680x0 central processing unit that runs the Mac OS

See also: PowerPC-based Macintosh computer

68LC040 Emulator

The part of the system software that allows 680x0 applications and other 680x0 software to execute on PowerPC-based Macintosh computers

See also: Mixed Mode Manager

680x0

See: 680x0 microprocessor

680x0 application

An application that contains code only for a 680x0 microprocessor

See also: fat application, PowerPC application

680x0 compiler

Any compiler that produces code that can execute on a 680x0

See also: PowerPC compiler

680x0 context block

A block of data used by the 68LC040 Emulator to maintain information across mode switches. The structure of this block of data is private.

680x0 microprocessor

Any member of the Motorola 68000 family of microprocessors.

680x0 software

Any software (that is, application, extension, driver, or other executable code) that consists of code only for a 680x0 microprocessor

See also: 680x0 application

680x0-based Macintosh computer

Any computer containing a 680x0 central processing unit that runs Macintosh system software

See also: PowerPC processor-based Macintosh computer