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158 lines
3.9 KiB
Plaintext
158 lines
3.9 KiB
Plaintext
# Examine tokens emitted by the SV lexer for a trivial module.
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# Not intended to stress any particular corner of the language.
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---input---
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// Adder flops the sum of its inputs
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module Adder #(
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parameter int N = 42
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) (
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output logic [N-1:0] y,
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output logic co,
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input logic [N-1:0] a,
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input logic [N-1:0] b,
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input logic ci,
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input logic clk
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);
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always_ff @(posedge clk) begin
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{co, y} <= a + b + ci;
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end
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endmodule : Adder
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---tokens---
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'// Adder flops the sum of its inputs\n' Comment.Single
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'module' Keyword
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' ' Text.Whitespace
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'Adder' Name
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' ' Text.Whitespace
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'#' Punctuation
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'(' Punctuation
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'\n ' Text.Whitespace
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'parameter' Keyword
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' ' Text.Whitespace
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'int' Keyword.Type
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' ' Text.Whitespace
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'N' Name
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' ' Text.Whitespace
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'=' Operator
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' ' Text.Whitespace
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'42' Literal.Number.Integer
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'\n' Text.Whitespace
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')' Punctuation
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' ' Text.Whitespace
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'(' Punctuation
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'\n ' Text.Whitespace
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'output' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'[' Punctuation
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'N' Name
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'-' Operator
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'1' Literal.Number.Integer
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':' Operator
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'0' Literal.Number.Integer
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']' Punctuation
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' ' Text.Whitespace
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'y' Name
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',' Punctuation
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'\n ' Text.Whitespace
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'output' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'co' Name
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',' Punctuation
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'\n\n ' Text.Whitespace
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'input' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'[' Punctuation
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'N' Name
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'-' Operator
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'1' Literal.Number.Integer
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':' Operator
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'0' Literal.Number.Integer
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']' Punctuation
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' ' Text.Whitespace
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'a' Name
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',' Punctuation
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'\n ' Text.Whitespace
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'input' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'[' Punctuation
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'N' Name
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'-' Operator
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'1' Literal.Number.Integer
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':' Operator
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'0' Literal.Number.Integer
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']' Punctuation
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' ' Text.Whitespace
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'b' Name
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',' Punctuation
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'\n ' Text.Whitespace
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'input' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'ci' Name
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',' Punctuation
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'\n\n ' Text.Whitespace
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'input' Keyword
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' ' Text.Whitespace
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'logic' Keyword.Type
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' ' Text.Whitespace
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'clk' Name
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'\n' Text.Whitespace
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')' Punctuation
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';' Punctuation
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'\n ' Text.Whitespace
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'always_ff' Keyword
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' ' Text.Whitespace
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'@' Punctuation
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'(' Punctuation
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'posedge' Keyword
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' ' Text.Whitespace
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'clk' Name
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')' Punctuation
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' ' Text.Whitespace
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'begin' Keyword
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'\n ' Text.Whitespace
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'{' Punctuation
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'co' Name
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',' Punctuation
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' ' Text.Whitespace
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'y' Name
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'}' Punctuation
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' ' Text.Whitespace
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'<' Operator
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'=' Operator
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' ' Text.Whitespace
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'a' Name
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' ' Text.Whitespace
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'+' Operator
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' ' Text.Whitespace
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'b' Name
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' ' Text.Whitespace
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'+' Operator
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' ' Text.Whitespace
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'ci' Name
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';' Punctuation
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'\n ' Text.Whitespace
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'end' Keyword
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'\n' Text.Whitespace
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'endmodule' Keyword
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' ' Text.Whitespace
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':' Operator
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' ' Text.Whitespace
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'Adder' Name
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'\n' Text.Whitespace
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