Basic principles and practice of microprocessors / D.E. Heffer, G.A. King, and D.C. Keith. Heffer, D. E. King, G. A. Keith, D. Microprocessors. QA76.5 .H4445 1986 004.16 19 HEB Includes index. London ; Baltimore, Md., U.S.A. : E. Arnold, c1986. c1986. 1986 Text xi, 241 p. : eng