Class: ClassHDL::OpertorChain

Inherits:
Object
  • Object
show all
Defined in:
lib/tdl/class_hdl/hdl_redefine_opertor.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arg = nil) ⇒ OpertorChain

Returns a new instance of OpertorChain.



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 43

def initialize(arg=nil)
    @tree = [] #[[inst0,symb0],[inst1,symb1],[other_chain,symb2],[other_chain,symb3]]
               # self <symb0> inst0 <symb1> inst1 <symb2> ( other_chain ) <symb3> ( other_chain )
    if arg 
        @tree << arg 
    end  
end

Instance Attribute Details

#instance_add_brackets ⇒ Object

Returns the value of attribute instance_add_brackets.



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 41

def instance_add_brackets
  @instance_add_brackets
end

#slaver ⇒ Object

Returns the value of attribute slaver.



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 41

def slaver
  @slaver
end

#tree ⇒ Object

Returns the value of attribute tree.



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 41

def tree
  @tree
end

Class Method Details

.define_op_flag(ruby_op, hdl_op) ⇒ Object 



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 106

def self.define_op_flag(ruby_op,hdl_op)
    define_method(ruby_op) do |b|
        if b.is_a? OpertorChain
            b.slaver = true
            unless b.simple_op?
                b.instance_add_brackets = true 
            end
        end   
        # 计算生成新的OpertorChain 是 self 也需要抛弃
        self.slaver = true
        # return self
        new_op =  OpertorChain.new 
        new_op.tree = new_op.tree + self.tree
        new_op.tree.push [b,hdl_op] 
    
        if ClassHDL::AssignDefOpertor.curr_assign_block
            ClassHDL::AssignDefOpertor.curr_assign_block.opertor_chains.push(new_op)
        end
        new_op
    end
end

Instance Method Details

#brackets ⇒ Object 



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 96

def brackets
    self.slaver = true
    new_op = OpertorChain.new(["(#{self.instance})".to_nq])
end

#clog2 ⇒ Object 



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 101

def clog2
    self.slaver = true
    new_op = OpertorChain.new(["$clog2(#{self.instance})".to_nq])
end

#instance(type = :assign) ⇒ Object 



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 136

def instance(type=:assign)
    AssignDefOpertor.with_rollback_opertors(:old) do 
        str = ''
        # both_symb_used = false
        cnt = 0
        @tree.each do |node|
            if cnt==1
                if node[1].to_s=="<="
                    if type==:always_ff || type==:cond
                        sb = " <= "
                    else 
                        sb = " = "
                    end 
                else 
                    sb = "#{node[1].to_s}"
                end
            else
                sb = "#{node[1].to_s} "
            end
            
            unless node[0].is_a? OpertorChain
                ## 判断是不是属于 Var <= "String" 形式
                if (@tree.length == 2) && node[0].instance_of?(String) && !@slaver
                    str += (sb + '"' + node[0].to_s + '"')
                elsif node[0].instance_of?(String)
                    # "如果是字符串 则原始输出"
                    str += (sb + '"' + node[0].to_s + '"')
                else 
                    str += (sb + node[0].to_s)
                end
            else 
                node[0].slaver = true
                # puts "--------"
                # p node[0].tree
                # puts "========"
                # if node[0].tree.length>2 && ["&","|","<",">"].include?(node[0].tree[1][1])

                # else
                if sb =~/(\||&){2,2}/
                    str += " #{sb}#{node[0].instance(:slaver).to_s}"
                else
                    str += "#{sb}(#{node[0].instance(:slaver).to_s})"
                end
                # end
                # str += "#{sb}(#{"Node"})"
            end
            cnt += 1
        end

        ## 修饰

        # if nege 
        #     str = "~(#{str})"
        # else
        #     str
        # end
        if instance_add_brackets 
            "(#{str})"
        else 
            str
        end
    end
end

#simple_op? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 74

def simple_op?
    ## 判断是不是简单的运算 如 X > 0 ,x & y
    ##[[tmp0[0]], ["FALSE", "&"], [#<ClassHDL::OpertorChain:0x00005557046de088 @tree=[[a_inf.valid], ["1'b0", "|"]], @slaver=true>, "&"]]
    ##[[a_inf.valid], ["1'b0", "|"]
    rel = false
    AssignDefOpertor.with_rollback_opertors(:old) do 
        if tree.size==2 && tree[0].size==1 && !(tree[0][0].is_a?(ClassHDL::OpertorChain)) && !(tree[1][0].is_a?(ClassHDL::OpertorChain))
            rel = true 
        else
            rel = false 
        end
    end
    return rel
end

#to_s ⇒ Object 



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# File 'lib/tdl/class_hdl/hdl_redefine_opertor.rb', line 132

def to_s 
    instance(type=:cond)
end