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IBM Journal of Research and Development  
Volume 41, Number 4/5, Page 515 (1997)
IBM S/390 G3 and G4
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Design methodology for the S/390 Parallel Enterprise Server G4 microprocessors

by K. L. Shepard, S. M. Carey, E. K. Cho, B. W. Curran, R. F. Hatch, D. E. Hoffman, S. A. McCabe, G. A. Northrop, R. Seigler
This paper describes the design methodology employed in the design of the S/390* Parallel Enterprise Server G4 microprocessors. Issues of verifying design metrics of area, power, noise, timing, testability, and functional correctness are discussed within the context of a transistor-level custom design approach. Practical issues of managing the complexity of a 7.8-million-transistor design and encouraging design productivity are introduced.
Related Subjects: Arithmetic and logical unit design; Circuit and device technology; Computer organization and design; IBM System/390 Parallel Enterprise Server; Large-scale computing; Logic design and technology; Microprocessor systems and applications