| 摘要 |
<p>PURPOSE:To provide a microcomputer which can reduce the program capacity and also shorten the program executing time. CONSTITUTION:A control register group 8 is provided with a 2-operand/3- operand control switching register 11. An instruction decoding part 9 decodes an instruction code as well as the logical value of the register 11 that is set at every task execution queues. Thus the information on the operands can be decided. Thus, the switching is facilitated between the 2-operand and 3-operand control states at every task even with the same instruction code.</p> |
