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RC systems typically consist of an array of configurable computing elements. The computational granularity of these elements ranges from simple gates - as abstracted by FPGA lookup tables - to complete arithmetic-logic units with or without registers. A rich programmable interconnect completes the array. RC system developer manually partitions an application into two segments: a hardware component in a hardware description language such as VHDL or Verilog that will execute as a circuit on the FPGA and a software component that will execute as a program on the host. Single-assignment C is a C language variant designed to create an automated compilation path from an algorithmic programming language to an FPGA-based reconfigurable computing system.