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Instruction issue method and apparatus, central processing unit, instruction issue program and a computer-readable storage medium storing it
Instruction issue method and apparatus, central processing unit, instruction issue program and a computer-readable storage medium storing it
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机译：指令发布方法和装置，中央处理单元，指令发布程序以及存储该指令发布方法的计算机可读存储介质
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摘要
PROBLEM TO BE SOLVED: To cause a multithreaded processor to achieve real-time processing through overtaking based on priority of instruction.;SOLUTION: An instruction fetching unit 2 fetches instructions from an instruction cache 3 and sends them to an instruction decoding unit 9. The instruction decoding unit 89 decodes the instructions. A reservation station 20 obtains from a register file 1-1 the instructions and the operands needed for executing the instructions. A thread control unit 21 sets the priority of each thread. The reservation station 20 supervises a common data bus 12 if not all the operands needed for executing the instructions are obtained, and fetches, if any, necessary operands. The reservation station 20 selects an entry with the highest priority from among entries where there are all the operands needed for executing the instructions, and sends its instruction and operand to a computing unit 4. The computing unit 4 executes the instructions according to the instruction and the operand.;COPYRIGHT: (C)2005,JPO&NCIPI
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