rvcodec.js

RISC-V Instruction Enoder/Decoder

A webapp that helps students visualize how RISC-V instructions are encoded and decoded. Can either encode or decode the input and presents a visualization of the fields of the assembly instruction and how they map to the bits in the encoded instruction word.

Aa a contributor to this project, I made the following contributions:

• Expanded the core encoder/decoder from just the base RV32I to support all ratified extensions in RV32/64/128GC.
• Fixed bugs and normalized conventions in the core to make it more consistent and maintainable.
• Implemented the autocomplete/lookup feature in the input field using a custom prefix trie and a system to map instructions to their operand format.

web appgithub