这个stage以Machine SD Node为调度基元, 以Basic block为调度scope, 以每个Basic block转出的SelectionDAG中的所有Machine SD Node为调度输入,转换成SUnit/SDep, 利用TargetSchedModel中的InstrItineraryData行程表信息,对SUnit进行调度,调度后的SUnit最终转换输出MI(Machine Instruction)到Machine Basic Block. 此stage做...
第一列中的寄存器名字并不是超级重要,它唯一重要的场景是在RISC-V的Compressed Instruction中。 基本上来说,RISC-V中通常的指令是64bit,但是在Compressed Instruction中指令是16bit。 在Compressed Instruction中我们使用更少的寄存器,也就是x8 - x15寄存器。 我猜你们可能会有疑问,为什么s1寄存器和其他的s寄存器是分开...
The words of a computers language are called instructions, and its vocabulary is called an instruction set. In this chapter, you will see the instruction set of a real computer, both in the form written by people and in the form read by the computer. We introduce instructions in a top-...
5. [tech] Preparation to start public review period for "PAUSE Hint instruction" extension lists.riscv.org/g/tech/ Oct 31, 2020 1. [tech-bitmanip] summary of current proposals for Zb{abcs} lists.riscv.org/g/tech- Nov 2, 2020 1. Zfinx spec ready for public review lists.riscv.org...
ARC在处理器IP行业的名声本身就不小，低功耗、高度可配置性、可扩展性是其得以满足应用需求的特点：ARC...
RISC-V科普：开放式的ISA 来源：EETOP编译自allaboutcircuitshttps://www.allaboutcircuits.com/technical-articles/introductions-to-risc-v-instruction-set-understanding-this-open-instruction-set-architecture/ 本文是RISC-V基础知识的入门篇。介绍了开放式架构理念，以及模块化ISA的技术描述，以及一些商业RISC-V微...
https://www.allaboutcircuits.com/technical-articles/introductions-to-risc-v-instruction-set-understanding-this-open-instruction-set-architecture/ 本文是RISC-V基础知识的入门篇。介绍了开放式架构理念,以及模块化ISA的技术描述,以及一些商业RISC-V微处理器实现。
This chapter describes the current proposal for the RISC-V standard compressed instruction-set extension, named “C”, which reduces static and dynamic code size by adding short 16-bit instruction encodings for common operations. The C extension can be added to any of the base ISAs (RV32, RV...
总而言之,RISC-V是计算机架构世界中一个令人兴奋的话题。 来源:EETOP编译自allaboutcircuits https://www.allaboutcircuits.com/technical-articles/introductions-to-risc-v-instruction-set-understanding-this-open-instruction-set-architecture/
6 发展了从微控制器到服务器/HPC级处理器的全系列处理器。该项目始于IBM的Power ISA，但是由于技术和...