DIY Calculator CPU Instructions:
================================


1.) Hardware Events

    +---------------------------------------------+-------+--------+
    |              Hardware Events                | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || RST    |        |        |        |   -   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || IRQ    |        |        |        |   -   |   12   |
    +--------++--------+--------+--------+--------+-------+--------+


2.) Implied Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |    Implied Addressing Mode instructions     | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || HALT   |        |        |        |   1   |    3   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || INCA   | DECA   | INCX   | DECX   |       |        |
    |        || SHL    | SHR    | ROLC   | RORC   |   1   |    3   |
    |        || SETIM  | CLRIM  | NOP    |        |       |        |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || POPA   | POPSR  |        |        |   1   |    5   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || PUSHA  | PUSHSR |        |        |   1   |    6   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 5  || RTS    |        |        |        |   1   |    8   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 6  || RTI    |        |        |        |   1   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+


3.) Immediate Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |   Immediate Addressing Mode instructions    | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || ADD    | ADDC   | SUB    | SUBC   |       |        |
    |        || AND    | OR     | XOR    | CMPA   |   2   |    5   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || LDA    |        |        |        |   2   |    4   |
    +--------++--------+--------+--------+--------+-------+--------+


4.) Big Immediate Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    | Big Immediate Addressing Mode instructions  | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || BLDIV  | BLDSP  | BLDX   |        |   3   |    7   |
    +--------++--------+--------+--------+--------+-------+--------+


5.) Absolute Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |   Absolute Addressing Mode instructions     | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || ADD    | ADDC   | SUB    | SUBC   |       |        |
    |        || AND    | OR     | XOR    | CMPA   |   3   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || LDA    |        |        |        |   3   |    9   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || STA    |        |        |        |   3   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || JMP    |        |        |        |   3   |    7   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 5  || JSR    |        |        |        |   3   |   13   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 6  || JC     | JNC    | JN     | JNN    |       | 4 fail |
    |        || JO     | JNO    | JZ     | JNZ    |   3   | 7 pass |
    +--------++--------+--------+--------+--------+-------+--------+


6.) Big Absolute Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |  Big Absolute Addressing Mode instructions  | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || BLDIV  | BLDSP  | BLDX   |        |   3   |   11   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  ||        | BSTSP  | BSTX   |        |   3   |   13   |
    +--------++--------+--------+--------+--------+-------+--------+


7.) Indexed Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |    Indexed Addressing Mode instructions     | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || ADD    | ADDC   | SUB    | SUBC   |       |        |
    |        || AND    | OR     | XOR    | CMPA   |   3   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || LDA    |        |        |        |   3   |    9   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || STA    |        |        |        |   3   |   10   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || JMP    |        |        |        |   3   |    8   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 5  || JSR    |        |        |        |   3   |   14   |
    +--------++--------+--------+--------+--------+-------+--------+


8.) Indirect Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    |   Indirect Addressing Mode instructions     | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || LDA    |        |        |        |   3   |   14   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || STA    |        |        |        |   3   |   15   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || JMP    |        |        |        |   3   |   12   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || JSR    |        |        |        |   3   |   18   |
    +--------++--------+--------+--------+--------+-------+--------+


9.) Pre-Indexed Indirect Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    | Pre-Indexed Indirect Addressing Mode instr. | Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || LDA    |        |        |        |   3   |   14   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || STA    |        |        |        |   3   |   15   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || JMP    |        |        |        |   3   |   12   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || JSR    |        |        |        |   3   |   18   |
    +--------++--------+--------+--------+--------+-------+--------+


10.) Indirect Post-Indexed Addressing Mode instructions

    +---------------------------------------------+-------+--------+
    | Indirect Post-Indexed Addressing Mode instr.| Bytes | Cycles |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 1  || LDA    |        |        |        |   3   |   14   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 2  || STA    |        |        |        |   3   |   15   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 3  || JMP    |        |        |        |   3   |   13   |
    +--------++--------+--------+--------+--------+-------+--------+
    | grp 4  || JSR    |        |        |        |   3   |   19   |
    +--------++--------+--------+--------+--------+-------+--------+