Instruction Decoder
In CPU design, the instruction decoder is the part of the CPU that converts the bits stored in the instruction register -- or, in CPUs that have microcode, the microinstruction -- into the control signals that control the other parts of the CPU.
A simple CPU with 8 registers may use 3-to-8 logic decoders inside the instruction decoder to select two source registers of the register file to feed into the ALU as well as the destination register to accept the output of the ALU. A typical CPU instruction decoder also includes several other things.
Read more about this topic: Decoder
Famous quotes containing the word instruction:
“I have come to believe ... that the stage may do more than teach, that much of our current moral instruction will not endure the test of being cast into a lifelike mold, and when presented in dramatic form will reveal itself as platitudinous and effete. That which may have sounded like righteous teaching when it was remote and wordy will be challenged afresh when it is obliged to simulate life itself.”
—Jane Addams (1860–1935)