| 摘要 |
PROBLEM TO BE SOLVED: To improve the performance of an N-bit data passage while raising the code density for an application in a data processor using many pairs of instruction sets. SOLUTION: Two instruction sets use the complete N-bit data passage in a processor core 2 to control the processing. One instruction set is an instruction set of 32-bit instructions, and the other is an instruction set of 16-bit instructions. Both instruction sets are permanently set, and relevant hardware 30, 36, and 38 which decode the instructions are provided. |
