Motorola M68000 Family - Revision history

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2024-02-20T05:17:58Z

+Category

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typo

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‎External links: +M68000 Family Reference

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‎External links: +docs

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New cat

Larsbrinkhoff: My Lisp sense is tingling.

2023-02-11T14:40:10Z

My Lisp sense is tingling.

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2018-12-16T15:30:58Z

proper cat

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+cat

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Avoid redirs

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typos

← Older revision		Revision as of 05:17, 20 February 2024
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	[[Category: Motorola Microprocessors]]		[[Category: Motorola Microprocessors]]
		+	[[Category: Architectures]]
	[[Category: 32-bit Computers]]		[[Category: 32-bit Computers]]

@@ Line 9: / Line 9: @@
 all shared by all members of the family (which are generally compatible at the [[object code]] level) it is a 32-bit machine. (A large share of the instructions are only 16 bits long, however.)
-The earliest member of the family (the [[MC68000]] did not support [[virtual memory]] or [[virtualization]], but all the later members did. The 68K family is a [[Complex Instruction Set Computer|CISC]] architecture.
+The earliest member of the family (the [[MC68000]]) did not support [[virtual memory]] or [[virtualization]], but all the later members did. The 68K family is a [[Complex Instruction Set Computer|CISC]] architecture.
 The architecture shows clear influences from the [[PDP-11 architecture]], including auto-increment and -decrement modes for stack support and array operations, memory-mapped I/O, etc. In other ways it has similar approaches to the PDP-11, including large numbers of general-purpose registers, a very orthogonal instruction set, etc, although it is harder to say definitively what the source was.
@@ Line 36: / Line 36: @@
 [[Category: Motorola Microprocessors]]
-[[Category: 32-bit_Computers]]
+[[Category: 32-bit Computers]]

@@ Line 33: / Line 33: @@
 * [http://www.bitsavers.org/components/motorola/68000/ 68000] - documentation at [[Bitsavers]]
 [[Category: Motorola Microprocessors]]
 [[Category: 32-bit_Computers]]

@@ Line 29: / Line 29: @@
 * Fourth generation - superscalar
 ** [[MC68060]]
 [[Category: Motorola Microprocessors]]
 [[Category: 32-bit_Computers]]

← Older revision		Revision as of 16:11, 11 July 2023
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	[[Category: Motorola Microprocessors]]		[[Category: Motorola Microprocessors]]
		+	[[Category: 32-bit_Computers]]

@@ Line 13: / Line 13: @@
 The architecture shows clear influences from the [[PDP-11 architecture]], including auto-increment and -decrement modes for stack support and array operations, memory-mapped I/O, etc. In other ways it has similar approaches to the PDP-11, including large numbers of general-purpose registers, a very orthogonal instruction set, etc, although it is harder to say definitively what the source was.
-During their lifetime (in the 1980s and early 1990s), they were popular, initially in small [[time-sharing]] systems, and then [[workstation]]s (e.g. the [[Sun workstation]]) and finally in [[personal computer]]s (notably the [[Apple Macintosh]].
+During their lifetime (in the 1980s and early 1990s), they were popular, initially in small [[time-sharing]] systems, and then [[workstation]]s (e.g. the [[Sun workstation]]) and finally in [[personal computer]]s (notably the [[Apple Macintosh]]).
 In the latter role, their primary competition was the [[Intel x86]] microprocessor line. They are no longer used in personal computers, but derivatives are still in wide use in embedded systems.

← Older revision		Revision as of 15:30, 16 December 2018
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	** [[MC68060]]		** [[MC68060]]

−	[[Category: Microprocessors]]	+	[[Category: Motorola Microprocessors]]

← Older revision		Revision as of 15:23, 16 December 2018
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	* Fourth generation - superscalar		* Fourth generation - superscalar
	** [[MC68060]]		** [[MC68060]]
		+
		+	[[Category: Microprocessors]]

@@ Line 1: / Line 1: @@
 The '''Motorola 68000 family''' (also 680x0, 68K, etc) is a series of [[VLSI]] [[microprocessor]]s, successor to Motorola's prior [[Motorola M6800]].
-Although the first in the series (the [[MC68000]]) was described by Motorola as a "16-bit microprocessor", the family is generally considered to be a 32-bit. In a number of important aspects of an architecture:
+Although the first in the series (the [[MC68000]]) was described by Motorola as a "16-bit microprocessor", the family is generally considered to be a 32-bit. In a number of important aspects of an [[architecture]]:
-* Word (address space) size
+* Word ([[address space]]) size
 * Register length
 * Many operations (arithmetical, logical, etc)
@@ Line 9: / Line 9: @@
 all shared by all members of the family (which are generally compatible at the [[object code]] level) it is a 32-bit machine. (A large share of the instructions are only 16 bits long, however.)
-The earliest member of the family (the [[MC68000]] did not support [[virtual memory]] or [[virtualization]], but all the later members did. The 68K family is a [[CISC]] architecture.
+The earliest member of the family (the [[MC68000]] did not support [[virtual memory]] or [[virtualization]], but all the later members did. The 68K family is a [[Complex Instruction Set Computer|CISC]] architecture.
 The architecture shows clear influences from the [[PDP-11 architecture]], including auto-increment and -decrement modes for stack support and array operations, memory-mapped I/O, etc. In other ways it has similar approaches to the PDP-11, including large numbers of general-purpose registers, a very orthogonal instruction set, etc, although it is harder to say definitively what the source was.
@@ Line 17: / Line 17: @@
 In the latter role, their primary competition was the [[Intel x86]] microprocessor line. They are no longer used in personal computers, but derivatives are still in wide use in embedded systems.
-Motorola ceased development of the 68000 family in 1994, when they moved to the [[Motorola 88000 family]] of [[RISC]] processsors, and soon thereafter the [[PowerPC]] family, in collaboration with [[IBM]] and [[Apple Computer]].
+Motorola ceased development of the 68000 family in 1994, when they moved to the [[Motorola 88000 family]] of [[Reduced Instruction Set Computer|RISC]] processsors, and soon thereafter the [[PowerPC]] family, in collaboration with [[International Business Machines|IBM]] and [[Apple Computer]].
 * First generation - internally 16/32-bit