Put out a national pickup on any member of the Chosen Few, see the file this op code.

Because I look at other people's assembly language, and it's this absolutely opaque-looking stream of op codes running down the left-hand edge of the page.

The op codes do change.

Each operation transmitted a specific note, thus allowing someone to put together music by executing the right op codes in a specific order.

The op codes were 6 bits long.

Each op code designates a different operation that the processor can perform.

The first digit was the op code (O), the second and third digits comprised an address (A).

The base machine had 42 op codes.

With all options installed, there were 97 op codes.

PDP-11 processor speed varied by model, memory configuration, op code, and addressing modes.