NDLI: A microprogramming support tool for pipelined architectures

Content Provider	ACM Digital Library
Author	Surles, M. C. Molnar, S.
Abstract	We describe a software tool to aid the development of microcode for horizontal, pipelined architectures. The tool is a preprocessor for microcode source that allows the programmer full flexibility to optimize code, but removes many of the tedious and error-prone aspects of microprogramming. It automatically allocates floating-point registers, expands complex instructions, and analyzes code for pipeline-related errors.We have written a working version of the tool for the Weitek XL-8032 floating-point chip set, a horizontal architecture with pipelined sequencer and floating-point datapaths. Although the tool was designed for the XL architecture, the algorithms used are applicable to other parallel/pipelined architectures.This paper argues for the existence of such tools, summarizes the algorithms needed to analyze control and data flow in the presence of pipelining, and characterizes the tool's performance based on nine microcoded routines written for a real-time 3-D graphics system.
Starting Page	108
Ending Page	110
Page Count	3
File Format	PDF
ISBN	0818619198
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1988-01-03
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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A microprogramming support tool for pipelined architectures