Five EmbedDev

An Embedded RISC-V Blog

Preface

1. Introduction

2. RV32I Base Integer Instruction Set, Version 2.1

3. Zifencei Instruction-Fetch Fence, Version 2.0

4. Zihintpause Pause Hint, Version 2.0

5. RV32E and RV64E Base Integer Instruction Sets, Version 2.0

6. RV64I Base Integer Instruction Set, Version 2.1

7. RV128I Base Integer Instruction Set, Version 1.7

8. M Standard Extension for Integer Multiplication and

9. A Standard Extension for Atomic Instructions, Version 2.1

10. Zicsr, Control and Status Register (CSR) Instructions, Version 2.0

11. Zicntr and Zihpm Counters

12. F Standard Extension for Single-Precision Floating-Point,

13. D Standard Extension for Double-Precision Floating-Point,

14. Q Standard Extension for Quad-Precision Floating-Point,

15. Zfh and Zfhmin Standard Extensions for Half-Precision Floating-Point,

16. RVWMO Memory Consistency Model, Version 2.0

17. C Standard Extension for Compressed Instructions, Version

18. B Standard Extension for Bit Manipulation, Version 0.0

19. J Standard Extension for Dynamically Translated Languages, Version 0.0

20. P Standard Extension for Packed-SIMD Instructions,

21. V Standard Extension for Vector Operations, Version 1.0

22. Zam Standard Extension for Misaligned Atomics, v0.1

23. Zfinx, Zdinx, Zhinx, Zhinxmin: Standard Extensions for Floating-Point in Integer Registers, Version 1.0

24. Ztso Standard Extension for Total Store Ordering, Version 1.0

25. RV32/64G Instruction Set Listings

26. Extending RISC-V

27. ISA Extension Naming Conventions

28. History and Acknowledgments

CSR Dependency Tracking Granularity

Source and Destination Register Listings

RVWMO Explanatory Material, Version 0.1

Formal Memory Model Specifications, Version 0.1

Formal Axiomatic Specification in Alloy

Formal Axiomatic Specification in Herd

An Operational Memory Model

RISC-V Instruction Set Manual, Volume I: RISC-V User-Level ISA , isa-449cd0c 2023/04/18

19 “J” Standard Extension for Dynamically Translated Languages, Version 0.0

This chapter is a placeholder for a future standard extension to support dynamically translated languages.

Many popular languages are usually implemented via dynamic translation, including Java and Javascript. These languages can benefit from additional ISA support for dynamic checks and garbage collection.

© RISC-V Foundation, CC BY 4.0. Coverted to HTML from src/j.tex(isa-449cd0c) using Pandoc. For the official specifications refer to riscv.org.