simulate_x_tick.vh

// ================================================================
// NVDLA Open Source Project
//
// Copyright(c) 2016 - 2017 NVIDIA Corporation. Licensed under the
// NVDLA Open Hardware License; Check "LICENSE" which comes with
// this distribution for more information.
// ================================================================
// File Name: simulate_x_tick.vh
`ifdef _SIMULATE_X_VH_
`else
`define _SIMULATE_X_VH_
`ifndef SYNTHESIS
`define SIMULATION_ONLY
`endif
// deprecated tick defines
`ifdef SIMULATION_ONLY
`define x_or_0 1'bx
`define x_or_1 1'bx
`else
`define x_or_0 1'b0
`define x_or_1 1'b1
`endif
// formerly recommended tick defines
`ifdef SIMULATION_ONLY
`define tick_x_or_0 1'bx
`define tick_x_or_1 1'bx
`else
`define tick_x_or_0 1'b0
`define tick_x_or_1 1'b1
`endif
// newly recommended tick defines
// (-sv parsing is enabled everywhere now, and explicit widths are no longer needed)
`ifdef SIMULATION_ONLY
`define sv_x_or_0 'x
`define sv_x_or_1 'x
`else
`define sv_x_or_0 '0
`define sv_x_or_1 '1
`endif
`endif