The DEC PDP-8 Vectors
The ISP of the PDP-8 Pc is about the most trivial in the book. Chapter 5 — It has only a few data operators, namely, <—,+, (negate), -j, It on A, / 2, X 2, (optional) X, /, and normalize. operates words, The DEC PDP-8 vectors. there are microcoded integers, and boolean However, instructions, which allow compound instructions to be formed in Introduction 1 a single instruction. is the levels dis- The PDP-8 is a single-address, 12-bit-word computer of the second The computer straightforward and illustrates 1. look at it from the down." generation. It is designed for task environments with minimum cussed in Chap. We can easily "top arithmetic computing and small Mp requirements. For example, The C in PMS notation is it can be used to control laboratory devices, such as gas chromoto- 12 graphs or sampling oscilloscopes. Together with special T's, it is C('PDP-8; technology:transistors; b/w; programmed to be a laboratory instrument, such as a pulse height descendants:'PDP-8/S, 'PDP-8/I, 'PDP-8/L; antecedents: 'PDP-5; analyzer or a spectrum analyzer. These applications are typical Mp(core; #0:7; 4096 w; tc:1.5 /is/w); of the laboratory and process control requirements for which the ~ 4 it Pc(Mps(2 w); machine was designed. As another example, can serve as a instruction length:l|2 w message concentrator by controlling telephone lines to which : 1 address/instruction ; occasion- typewriters and Teletypes are attached. The computer operations on data/od:(<— , +, —\, A, —(negate), X 2, stands alone as a small-scale general-purpose computer.
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