Luc Smria Giovanni De Micheli
As designers may model mixed software-hardware systems using a subset of C or C++, we present SpC, a solution to synthesize and optimize a C model with pointers. In hardware, a pointer is not only the address of data in memory, but it may also reference multiple variables mapped to registers, ports...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.5977 http://akebono.stanford.edu/users/nanni/research/sys/point_iccad98.pdf |
| Summary: | As designers may model mixed software-hardware systems using a subset of C or C++, we present SpC, a solution to synthesize and optimize a C model with pointers. In hardware, a pointer is not only the address of data in memory, but it may also reference multiple variables mapped to registers, ports or wires. Pointer analysis is used to find the point-to-set of each pointer in the program. In this paper, we address the problem of synthesizing and optimizing pointers to multiple variables and array elements. Temporary variables are defined to optimize loads and stores by minimizing the number of live variables. The combinational logic can also be reduced by encoding the pointers values. An implementation using the SUIF framework is presented, followed by some case studies such as the synthesis of a 2D IDCT. 1. INTRODUCTION: SYNTHESIS FROM C Different languages have been used as an input to behavioral synthesis. Hardware Description Languages (HDLs), such as Verilog HDL a. |
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