BRISC rev3

Instruction set:
    Types:
        Type is the way the instruction is being handled inside the CPU.

        A Type: Standard C=A+B, value returned will be from the ALU and therefore acessable by everything on the Main Data Buss.
        B Type: Used to load a piece of data onto the GPR's, but not be loaded onto any other register.
        C Type: Used when branching, No piece of data is being manipulated and saved.
        D Type: Used when reading from the B output of the GPR's to another mass of memory

    Operations:
        0000-ADD  - Add A and B, Save in C - A Type
        0001-IOR  - OR A and B, Save in C - A Type
        0010-AND  - AND A and B, Save in C - A Type
        0011-XOR  - XOR A and B, Save in C - A Type
        0100-++v  - 1 + A + B, Save in C - A Type
        0101-NOR  - NOR A and B, Save in C - A Type
        0110-NAND - NAND A and B, Save in C - A Type
        0111-XNOR - XNOR A and B, Save in C - A Type
        1000-A!=B - Compare if A != B, Return Bool - C Type
        1001-A>=B - Compare if A >= B, Return Bool - C Type
        1010-True - Returns True - C Type
        1011-rsft - Right shifts B - B Type
        1110-Halt - stops the computer
        1111-Sub - Subtract A and B, Save in C - A Type
    Argument C:
        | # | Name       |-| Type // Note
        0000-null
        0001-Set MMIO 01  - A Type
        0010-Set MMIO 10  - A Type
        0011-Set MMIO 11  - A Type
        0100-Push Stack   - A Type
        0101-Set GPR 01   - A Type
        0110-Set GPR 10   - A Type
        0111-Set GPR 11   - A Type
        1000-Set JMP      - A Type // can be used in unconditional jump
        1001-JMP if True  - C Type // If there is no comparative operation, This will return True if the COUT is on
        11xx-Load Imm     - B Type
    Argument A:
        | # | Name       |-| Type // Note
        0000-null         - Null
        0001-Read MMIO 01 - B Type
        0010-Read MMIO 10 - B Type
        0011-Read MMIO 11 - B Type
        0100-Pop Stack    - A Type
        0101-Read GPR 01  - A Type
        0110-Read GPR 10  - A Type
        0111-Read GPR 11  - A Type
        1XXX-RAM Write    - D Type
    Argument B:
        | # | Name       |-| Type // Note
        0000-null         - Null
        0100-Read STK     - A Type
        0101-Read GPR 01  - A Type
        0110-Read GPR 10  - A Type
        0111-Read GPR 11  - A Type
        1XXX-RAM Read     - B Type

    Terminology:
        MMIO = Memory Mapped I/O; I/O Mapped like memory
        GPR = General Purpose Register, the registers linked directly to the ALU