Differences between version 6 and revision by previous author of 680x0.
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| Newer page: | version 6 | Last edited on Saturday, March 19, 2005 11:40:35 am | by AristotlePagaltzis | Revert |
| Older page: | version 5 | Last edited on Wednesday, August 13, 2003 2:54:47 pm | by CraigBox | Revert |
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A series of [CPU]s made by [Motorola].
Introduced by Motorola in September 1979, this is the first in the [680x0] series. It has 16 32-bit registers, split into 8 data and 8 address. Addressing was done in 32-bits, though the address bus was only 24-bits (later models expanded it to the full 32-bits). Instructions are multiples of 16-bits and all addresses have to be 16-bit aligned (except for addressing single bytes, of course).
-The [68000|68000] was used in the AppleLisa and AppleMacintosh as well as the AtariST, Sega !
MegaDrive and some [Sun]
workstations. The 68000 was succeeded by the 68010 in 1982 which allowed the use of virtual memory and fixed a bug where the address of where a memory exception occured was incorrect. The 68k was used up until recently in PalmPilot [PDA]'
s
+The [68000|68000] was used in the AppleLisa and AppleMacintosh as well as the AtariST, Sega ~
MegaDrive and some SunMicrosystems
workstations. The 68000 was succeeded by the 68010 in 1982 which allowed the use of virtual memory and fixed a bug where the address of where a memory exception occured was incorrect. The 68k was used up until recently in PalmPilot [PDA]s.
