Current State of Sodor

Sodor has two main branches, that are kept in sync:

• master branch contains the simplest code
• comments-dev branch mirrors master, and adds verbose comments to the code.

Sodor also has advanced branches:

• tilelink2_fpga compatible with the latest tilelink api from freechipsproject/rocket-chip and runs on both PYNQ-Z1 and Arty

Branches with -dev appended to them are in development and may not have its flagship feature working

Note: On switching from one branch to another please use git submodule update --recursive

Code

Apart from the above main repository changes have also been to made to the following forked repositories to get support for not supported features:

• riscv-fesvr

Current Feature Set

• priv1.10
• chisel3
• debug spec v0.13
• Tilelink integration (code reuse from rocket)
• Port to FPGA
• Microarchitecture diagrams
• Communicate between sodor on pynq-z1 and fesvr(x86) using xsdb
• Pass isa and bmarks on both pynq-z1 and arty(with uncertainty in pass rates only in arty)

Future Work / To-Do

Feature Pipeline

random thoughts on things to make 1-stage code more accessible

brainstorming on progression in difficulty of sodor code