Where are the actual RISC-V instruction codes?
I have downloaded the latest...
RISC-V Instruction Set Manual, Volume 1: User-Level ISA
...which is interesting but it never actually gives values for the opcodes/funct3 and other instruction formats. For example, the LOAD/STORE/BRANCH opcodes are listed by name but it does not provide the actual bit values they represent.
Where are all the codes actual listed?
Answer
They are also already conveniently encoded in the source code of the sodor project:
https://github.com/ucb-bar/riscv-sodor
for constants that capture the bit patterns in various useful ways, see:
src/common/instructions.scala
or, directly from the browser:
https://github.com/ucb-bar/riscv-sodor/blob/master/src/main/scala/common/instructions.scala