| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a multi-media signal processor provide an adequate price, high computing power, and familiar programming environment by accessing a vector register discriminated by the combination of a register number and a value from a default bank field. SOLUTION: The processor 110 is present mainly for a control function for the execution of a real-time arithmetic system and similar functions which do not require many operation. Further, a processor 120 is discriminated with an instruction word by using a 5-bit register number within a range of 0 to 31. Further, 64 288-bit vector registers consisting of two banks of a 32-bit vector register are present. The respective vector registers are discriminated with a 1-bit bank number (0 or 1) and 5-bit vector register numbers 0 to 31. Then the majority instruction words access vector registers in a current bank specified with a default bank bit CBNAK stored in a control register VCSR of a vector processor 120.</p> |
