class ClassHDL::HDLAlwaysBlock

Attributes

belong_to_module[R]
negedges[RW]
opertor_chains[RW]
posedges[RW]

Public Class Methods

new(belong_to_module) click to toggle source
# File lib/tdl/class_hdl/hdl_always_ff.rb, line 36
def initialize(belong_to_module)
    @opertor_chains = []
    @posedges = []
    @negedges = []
    @belong_to_module = belong_to_module
end

Public Instance Methods

edge_instance(flag='posedge',edges=[]) click to toggle source
# File lib/tdl/class_hdl/hdl_always_ff.rb, line 43
def edge_instance(flag='posedge',edges=[])
    unless edges.is_a? Array
        es = [edges]
    else 
        es = edges 
    end
    es.compact!
    return es.map{|e| "#{flag} #{e.to_s}"}
end
instance() click to toggle source
# File lib/tdl/class_hdl/hdl_always_ff.rb, line 53
def instance
    str = []

    pose_str = edge_instance('posedge',@posedges)
    nege_str = edge_instance('negedge',@negedges)
    pose_str.concat nege_str

    str.push "always@(#{pose_str.join(",")}) begin "
    opertor_chains.each do |op|
        unless op.is_a? OpertorChain
            str.push op.instance(:always_ff).gsub(/^./){ |m| "    #{m}"}
        else 
            unless op.slaver
                rel_str = ClassHDL.compact_op_ch(op.instance(:always_ff, belong_to_module))
                str.push "    #{rel_str};"
            end
        end
        
    end
    str.push "end\n"
    str.join("\n")
end