Made to compile with the Imagination Technologies toolchain. Select the "Bare Metal" and "MIPS Clasic Legacy CPU" options when installing.
Compiling should just be a case of executing
make in the root dir. The .elf and .hex files should then be found in the /bin dir. The .hex file can be uploaded using MPLAB IPE and a PICkit or similar.
After a succesful upload, LED 1 should toggle once per second.