| 摘要 |
<p>PURPOSE:To make it unnecessary to save and restore general registers by the fixed number of general register sets even when interruption factors are increased, to reduce cost and to improve the working ratio of the general registers in a microcomputer provided with plural general register sets. CONSTITUTION:A register set specifying register 2a for specifying which register set out of plural register sets (0) 11 to (3) 14 of general registers 1 is to be used is constituted so as to be updated by an interruption processing start signal 6.</p> |
