verilator/test_regress/t/t_func_rand.v
Geza Lore 60d5f0e86b
Emit model implementation as loose methods. (#3006)
This patch introduces the concept of 'loose' methods, which semantically
are methods, but are declared as global functions, and are passed an
explicit 'self' pointer. This enables these methods to be declared
outside the class, only when they are needed, therefore removing the
header dependency. The bulk of the emitted model implementation now uses
loose methods.
2021-06-13 14:33:11 +01:00

34 lines
771 B
Systemverilog

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2006 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
module t (clk, Rand);
input clk;
output reg [31:0] Rand;
`ifdef verilator
`systemc_interface
unsigned int QxRandTbl (unsigned int tbl, unsigned int idx) { return 0xfeed0fad; }
`verilog
`endif
function [31:0] QxRand32;
/* verilator public */
input [7:0] tbl;
input [7:0] idx;
begin
`ifdef verilator
QxRand32 = $c("this->QxRandTbl(",tbl,",",idx,")");
`else
QxRand32 = 32'hfeed0fad;
`endif
end
endfunction
always @(posedge clk) begin
Rand <= #1 QxRand32 (8'h0, 8'h7);
end
endmodule