Class: Range

Inherits:
Object
  • Object
show all
Includes:
SEnumerable
Defined in:
lib/HDLRuby/hruby_high.rb,
lib/HDLRuby/std/sequencer.rb

Overview

Extends the range class to support to_low

Instance Method Summary collapse

Instance Method Details

#heach(&ruby_block) ⇒ Object

Iterates over the range as hardware.

Returns an enumerator if no ruby block is given.



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# File 'lib/HDLRuby/hruby_high.rb', line 5332

def heach(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:heach) unless ruby_block
    # Order the bounds to be able to iterate.
    first,last = self.first, self.last
    first,last = first > last ? [last,first] : [first,last]
    # Iterate.
    (first..last).each(&ruby_block)
end

#seach(&ruby_block) ⇒ Object

HW iteration on each element.



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# File 'lib/HDLRuby/std/sequencer.rb', line 2194

def seach(&ruby_block)
    # Create the iteration type.
    # if self.first < 0 || self.last < 0 then
    #     fw = self.first.is_a?(Numeric) ? self.first.abs.width :
    #          self.first.width
    #     lw = self.last.is_a?(Numeric) ? self.last.abs.width :
    #          self.last.width
    #     typ = signed[[fw,lw].max]
    # else
    #     typ = bit[[self.first.width,self.last.width].max]
    # end
    # Create the iteration type: selection of the larger HDLRuby type
    # between first and last. If one of first and last is a Numeric,
    # priority to the non Numeric one.
    if (self.last.is_a?(Numeric)) then
        typ = self.first.to_expr.type
    elsif (self.first.is_a?(Numeric)) then
        typ = self.last.to_expr.type
    else
        typ = self.first.type.width > self.last.type.width ? 
            self.first.type : self.last.type
    end
    # Create the hardware iterator.
    this = self
    size = this.size ? this.size : this.last - this.first + 1
    # size = size.to_expr
    # if size.respond_to?(:cast) then
    #     size = size.cast(typ)
    # else
    #     size = size.as(typ)
    # end
    size = size.to_expr.as(typ)
    # hw_enum = SEnumeratorBase.new(signed[32],size) do |idx|
    hw_enum = SEnumeratorBase.new(typ,size) do |idx|
        # idx.as(typ) + this.first
        idx.as(typ) + this.first.to_expr.as(typ)
    end
    # Is there a ruby block?
    if(ruby_block) then
        # Yes, apply it.
        return hw_enum.seach(&ruby_block)
    else
        # No, return the resulting enumerator.
        return hw_enum
    end
end

#to_low ⇒ Object

Convert the first and last to HDLRuby::Low



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# File 'lib/HDLRuby/hruby_high.rb', line 5321

def to_low
    first = self.first
    first = first.respond_to?(:to_low) ? first.to_low : first
    last = self.last
    last = last.respond_to?(:to_low) ? last.to_low : last
    return (first..last)
end