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Topic: 68000

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In the News (Tue 18 Jun 19)

  Motorola 68000 microprocessor family
Motorola 68000 (MC68000) is the first member of 680x0 line of microprocessors.
The 68000 architecture was much more flexible than other CPU families (z80, 80x86, z80000, etc) from programming point of view as it could be easily expanded to support full 32-bit data and address buses.
This 68000 microprocessor was not manufactured by Apple, but it was put into separate "Apple" category due to very unusual Apple copyright on the CPU.
www.cpu-world.com /CPUs/68000   (283 words)

  PDA Encyclopedia - Motorola 68000
In the Sega Saturn, the 68000 was used as the sound processor, and in the Atari Jaguar they were used as a main controller for all the other dedicated hardware IC's.
Initial samples of the 68000 were released in 1982, and competed against the Intel 8086 and Intel 80286 with some success.
The 68000 was also unable to correctly return from an exception on a failing memory access, a crucial feature to enable true virtual memory.
www.pdasupport.com /PDAencyclopediaMotorola68000.htm   (1984 words)

 68000 Exceptions, Interrupts
This is a flavor of interrupt for the 68000.
In the auto-vector mode, the 68000 is told to interrupt, and given a priority level.
Though all 68000 interrupts are classified as exceptions, not all exceptions are interrupts.
www.atarimagazines.com /v5n2/ExceptionsInterrupts.html   (1883 words)

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