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Micro, IEEE

Issue 4 • Date Aug. 1989

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Displaying Results 1 - 5 of 5
  • MicroLaw-appropriate and inappropriate legal protection of user interfaces and screen displays. II. Technical aspects of screen design raising legal policy issues

    Page(s): 7 - 10
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (856 KB)  

    (For pt.I see ibid., p.84-8, June 1989). The author continues an exploration of the kind of legal rights that might be asserted over the nondevice aspects of user interfaces and screen displays. He discusses further the difficulties and problems that protection of user interfaces and screen displays might cause. He examines good screen design, human factors analysis, conventional techniques and standards, the rapid rate of change, and keystrokes and interfaces.<> View full abstract»

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  • Introducing the Intel i860 64-bit microprocessor

    Page(s): 15 - 30
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1243 KB)  

    The authors describe the single-chip i860 CPU, a 64-bit, RISC (reduced-instruction-set-computer)-based microprocessor that executes parallel instructions using mainframe and supercomputer architectural concepts. They designed the 1,000,000-transistor, 10-mm*15-mm processor for balanced integer, floating-point, and graphics performance. They discuss the RISC core, memory management, floating-point unit, graphics, bus interface, software support, and interfacing to a DRAM system.<> View full abstract»

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  • The MC68332 microcontroller

    Page(s): 31 - 50
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    The total-system goals, CPU design goals, and modular design approach of the high-performance MC68332 microcontroller are described. The features of the system integration module, queued serial module, and standby RAM are summarized. The CPU and time processor modules are discussed in detail.<> View full abstract»

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  • A comparison of RISC architectures

    Page(s): 51 - 62
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1223 KB)  

    Three new RISC (reduced instruction set computer) architectures, the Intel i860, the Motorola 88000, and the Sun Microsystems Sparc, are compared. The relative importance of an architectural comparison, as opposed to a comparison of implementations, is discussed, followed by a high-level overview of each of the architectures. The relative strengths and weaknesses of the three architectures in a number of key areas are analyzed, and their overall relative strengths and weaknesses are summarized.<> View full abstract»

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  • A fixed-point DSP for graphics engines

    Page(s): 63 - 77
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1188 KB)  

    The use of the 16-bit ADSP-2100 digital signal microprocessor as a fixed-point, low-end graphics engine for applications such as video games and small computer graphics packages is examined. It serves as the basis for a complete, hardware-oriented approach to performing graphics operations on a 3-D database. Normalization and formatting are performed to avoid overflow and preserve data formats through the transformation operation. Data structures that facilitate object rendering through the Bresenham line-segment drawing algorithm are used. A 3*3 rotation matrix is derived for this application, and the means for implementing translation, scaling, perspective, and zooming are described.<> View full abstract»

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