chunchiu(更新版)
【正文】 ill take 20% of the rest code. Obviously, this structure is not reasonable. Based on the above irrationality, 1979, University of California at Berkeley in the United States put forward the concept of RISC, RISC is not simply to reduce the instruction, but to focus on how to make puters simple and reasonable way to improve operations Speed??. RISC structure of the highest priority to select the simple instructions frequently used to avoid plex instructions。s RISC System/6000 workstation and Macintosh puters, is a RISC microprocessor. ? Intel39。s. ? 1950s IBM instituted a research program ? 1964 Release of System/360 ? Mid1970s improved measurement tools demonstrated on CISC ? 1975 801 project initiated at IBM’s Watson Research Center ? 1979 32bit RISC microprocessor (801) developed led by Joel Birnbaum ? 1984 MIPS developed at Stanford, as well as projects done at Berkeley ? 1988 RISC processors had taken over highend of the workstation market ? Early 1990s IBM’s POWER (Performance Optimization With Enhanced RISC) architecture introduced with the RISC System/6k – AIM (Apple, IBM, Motorola) alliance formed, resulting in PowerPC References Inter sources: Book sources: Computer Organization And Architecture, 8th Edition.
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1