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R Chapter 7: Verilog Language Support Table 7-6: Procedural Assignments initial Statement Supported always Statement Supported task Supported (Recursion Unsupported) functions Supported (Recursion Unsupported) disable Statement Unsupported Table 7-7: System Tasks and Functions System Tasks Ignored System Functions Unsupported Table 7-8: Design Hierarchy Module definition Supported Macromodule definition Unsupported Hierarchical names Unsupported defparam Supported Array of instances Supported Table 7-9: Compiler Directives ‘celldefine ‘endcelldefine Ignored ‘default_nettype Supported ‘define Supported ‘undef, ‘indef, ‘elsif, Supported ‘ifdef ‘else ‘endif Supported ‘include Supported ‘resetall Ignored ‘timescale Ignored ‘unconnected_drive Ignored ‘nounconnected_drive 320 www.xilinx.com 1-800-255-7778 XST User Guide
