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De - Pt| English Dictionary: Motorola 68010 | by the DICT Development Group |
| 1 result for Motorola 68010 | |
| From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
|
Motorola 68010 successor to the {Motorola 68000} and was followed by the {Motorola 68020}. Some instructions which were previously {user mode} were made {system mode}, which necessitated patches to a few programs. The 68010's main advantage over the 68000 was that it could recover from a {bus fault}. The 68000 {microcode} didn't save enough state to restart all instructions; the 68010 corrected this fault. This allowed it to use {paged virtual memory}. The 68010's DBxx (decrement and branch) instructions could hold and execute the preceding instruction in the {prefetch buffer}, allowing some two-instruction loops to execute without refetching instructions. At one time there was a 68010 variant that was pin-for-pin compatible with the 68000. Early {Amiga} hackers replaced their 68000s with 68010s in order to get a small performance increase. (1995-11-29) | |
