PRISC: programmable reduced instruction set computers
PRISC: programmable reduced instruction set computers
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PRISC:可编程精简指令集计算机
DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
R. Razdan
中科院分区:
文献类型:
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作者:
R. Razdan
This thesis introduces Programmable Reduced Instruction Set Computers (PRISC) as a new class of general-purpose computers. PRISC use RISC techniques as a base, but in addition to the conventional RISC instruction resources, PRISC offer hardware programmable resources which can be configured based on the needs of a particular application. This thesis presents the architecture, operating system, and programming language compilation techniques which are needed to successfully build PRISC. Performance results are provided for the simplest form of PRISC--a RISC microprocessor with a set of programmable functional units consisting of only combinational functions. Results for the SPECint92 benchmark suite indicate that an augmented compiler can provide a performance improvement of 22% over the underlying RISC computer with a hardware area investment less than that needed for a 2 kilobyte SRAM. In addition, active manipulation of the source code leads to significantly higher local performance gains (250%-500%) for general abstract data types such as short-set vectors, hash tables, and finite state machines. Results on end-user applications that utilize these data types indicate a performance gain from 32%-213%.