Image Number 12 for United States Patent #6711641.
The operation processing apparatus comprises a trap selecting register which stores trap maps for selecting one operating system in which the operation processing apparatus is applied out of a plurality of operating systems, a read/write controller which selects data for selecting the operating system from the trap selecting register, and a trap type encoder which encodes a trap request from an execution unit such as an integer unit, into trap type code, according to the trap maps corresponding to the selection data.
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