README.md

The instruction decoder

The decoder takes as inputs an instruction comming from the ROM and interprets it to produced 6 values:

an opcode, which represents the opcode encoded in the instruction.
an imm, which represents the immediate encoded in the instruction.
a rs1, which represents the first register address encoded in the instruction (for format U, this value will not be taken into account later in the netlist).
a rs2, which represents the second register address encoded in the instruction (for formats U and I, this value will not be taken into account later in the netlist).
a rd, which represents the register address of the destination encoded in the instruction.
a wenableReg, which is a single bit telling us if we should write the last result in a register.
and a wenableRAM, which is a single bit telling us if we should write the last result in the RAM.