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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Reese, R.B. Thornton, M.A. Traver, C. |
| Copyright Year | 2003 |
| Description | Author affiliation: Mississippi State Univ., MS, USA (Reese, R.B.) |
| Abstract | A five-stage pipelined CPU based on the MIPs ISA is mapped to a self-timed implementation scheme known as Phased Logic (PL). The mapping is performed automatically from a netlist of D-Flip-Flops and 4-input Lookup Tables (LUT4s) to a netlist of PL blocks. Each PL block is composed of control logic wrapped around a collection of DFFs and LUT4s to form a multi-input/output PL gate. PL offers a speedup technique known as early evaluation that can be used to boost performance at the cost of additional logic within each block. In addition to early evaluation, this implementation uses bypass paths in the ALU for shift and logical instructions and buffering stages for increased dataflow to further improve performance. Additional speedup is gained by reordering instructions to provide more opportunity for early evaluation. Simulation results show an average speedup of 41% compared to the clocked netlist over a suite of five benchmark programs. |
| Sponsorship | IEEE Comput. Soc. Tech. Committee on VLSI |
| Starting Page | 2 |
| Ending Page | 13 |
| File Size | 404924 |
| Page Count | 12 |
| File Format | |
| ISBN | 0769518982 |
| ISSN | 15228681 |
| DOI | 10.1109/ASYNC.2003.1199161 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-05-12 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Clocks Logic design Physics computing Educational institutions Instruction sets Table lookup Automatic control Costs Engineering management Design methodology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Engineering |
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