Cache control system which permanently inhibits local but not gl

Details Cache control system which permanently inhibits local but not gl Cache control system which permanently inhibits local but not gl

1995-03-09

1996-04-30

Black, Thomas G.

Boots, shoes, and leggings

395440, 364964341, 364964342, 364DIG1, 3642434, 364286, G06F 1730

Patent

active

055133533

ABSTRACT:
A data cache memory is dynamically allocated as a global area which can be accessed in tasks other than a current task, and a local area which can be accessed in only a specific task. In the global area, data processing is controlled by the write through or copy back technique, in the same manner as in a conventional system. With respect to an access to the local area, an access is allowed to only the data cache memory, but is inhibited in relation to a main memory. For this reason, the tag section of the data cache memory includes a flag indicating a local or global area, and a task number storage field indicating a task in which a secured local area is accessed.

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