Patent ID: 6014757
Filing Date: 2000-01-11
Classification: G06F

Abstract:
A central processing unit comprising:A) data manipulation circuitry including a plurality of registers comprising a register bank;B) a first safestore buffer;C) first transfer control means for transferring a copy of the instantaneous contents of said register bank into said first safestore buffer;D) a second safestore buffer;E) second transfer control means for transferring a copy of the instantaneous contents of said first safestore buffer into said second safestore buffer;F) third transfer control means, responsive to sensing a domain change, for transferring a copy of the instantaneous contents of said second safestore buffer into said first safestore buffer; andG) fourth transfer control means, responsive to a directed recovery from said first safestore buffer, for transferring a copy of the instantaneous contents of said first safestore buffer to said register bank.