CISC (读作 "sisk")表示复杂指令系统计算机,而RISC (读作 "risk")表示精简指令系统计算机。随着微处理器的不断改进,它的处理速度不断增加,指令也越来越复杂。设计人员发现假定有三种指令分别表示基本功能A、B和C,用单独的指令执行复杂的处理过程(如A + B、 B + C或 A + B + C 以及大量寻址),是很方便...
This result surprised some, as their intuition was that the variable-length CISC ISA should be smaller than RISC ISAs that offered only 16-bit and 32-bit formats. Since the original RISC ISAs did not leave sufficient opcode space free to include these unplanned compressed instructions, they ...
and the Toshiba Tx1 were also introduced, and a 64 bit version (CHIP64) began development, but they didn't catch on in the non-Japanese market (definitive specifications or descriptions of the OS's actual operation were hard to come by, while research systems like Mach of ...
功能描述Familyof16-bitCAN-enabledCompactRISCMicrocontrollers Download156 Pages Scroll/Zoom 100% 制造商NSC [National Semiconductor (TI)] 网页http://www.national.com 标志 类似零件编号 - CR16MAS9VJE3 制造商部件名数据表功能描述 National Semiconductor ...CR16M9S5 ...
功能描述Familyof16-bitCAN-enabledCompactRISCMicrocontrollers Download156 Pages Scroll/Zoom 100% 制造商NSC [National Semiconductor (TI)] 网页http://www.national.com 标志 类似零件编号 - CR16MBR5VJI5 制造商部件名数据表功能描述 National Semiconductor ...CR16M9S5 ...
功能描述FamilyofCompactRISC16-BitMicrocontrollers Download99 Pages Scroll/Zoom 100% 制造商NSC [National Semiconductor (TI)] 网页http://www.national.com 标志 类似零件编号 - CR16MUS5 制造商部件名数据表功能描述 Texas InstrumentsCR16MUS5 996Kb/101PFamily of CompactRISC 16-Bit Microcontrollers ...
参考译文:像许多RISC指令集(以及一些复杂的指令集计算机(CISC)指令集,如像许多RISC指令集(以及一些复杂的指令集计算机(CISC)指令集,如x86和IBM System / 360及其后代通过z / Architecture),RISC-V缺少写入寄存器的地址模式。例如,它不自动递增。[2]:24 RISC-V 管理 CPU 与 thread 之间的共享存储器的方式是确保...
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Early RISC processors reduced transistor counts compared to CISC processors, and gained their cost and performance improvements therein. Today, interconnections between transistors dominate the silicon of many CPUs. The ShBoom MPU architectural philosophy results in, along with fewer transistors, the minimi...