Class: RubyHDL::High::Binary

Inherits:
Expression show all
Defined in:
lib/HDLRuby/std/sequencer_sw.rb

Overview

Describes the software implementation of an binary operation.

Instance Attribute Summary

Attributes inherited from Expression

#type

Instance Method Summary collapse

Methods inherited from Expression

#<=, #[], #heach, #mux, #sdownto, #seach, #stimes, #supto, #to_expr, #to_value

Methods included from HEnumerable

#hall?, #hany?, #hchain, #hchunk, #hchunk_while, #hcompact, #hcount, #hcycle, #hdrop, #hdrop_while, #heach_cons, #heach_entry, #heach_range, #heach_slice, #heach_with_index, #heach_with_object, #hfind, #hfind_index, #hfirst, #hflat_map, #hgrep, #hgrep_v, #hgroup_by, #hinclude?, #hinject, #hlazy, #hmap, #hmax, #hmax_by, #hmin, #hmin_by, #hminmax, #hminmax_by, #hnone?, #hone?, #hpartition, #hreduce, #hreject, #hreverse_each, #hselect, #hslice_after, #hslice_before, #hslice_when, #hsort, #hsort_by, #hsum, #htake, #htake_while, #htally, #hto_a, #hto_h, #huniq, #hzip

Constructor Details

#initialize(type, operator, left, right) ⇒ Binary

Create a new binary operation with +type+ data type, operator +operator+ and operands +left+ and +right+.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2461

def initialize(type,operator,left,right)
  super(type)
  @operator = operator.to_sym
  @left = left.to_expr
  @right = right.to_expr
  # Compute the mask for fixing the bit width.
  @mask = (2 ** @type.width)-1
  # puts "@type=#{@type} name=#{@type.name} @type.width=#{@type.width} @mask=#{@mask}"
  # Compute xor mask for handling the sign.
  # Make it as a string so that no addition computation is required
  # if no sign is required.
  @sign_fix = ""
  if type.signed? then
    @sign_fix = " ^ #{2**(@type.width-1)}"
  end
end

Instance Method Details

#to_c ⇒ Object

Convert to C code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2486

def to_c
  return C_OPERATOR[@operator] % [ @left.to_c, @right.to_c ]
end

#to_python(l = "") ⇒ Object

Convert to Python code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2491

def to_python(l = "")
  return PYTHON_OPERATOR[@operator] % 
    { l: @left.to_python, r: @right.to_python, m: @mask, s: @sign_fix }
end

#to_ruby ⇒ Object

Convert to Ruby code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2479

def to_ruby
  # return RUBY_OPERATOR[@operator] % [ @left.to_ruby, @right.to_ruby ]
  return RUBY_OPERATOR[@operator] % 
    { l: @left.to_ruby, r: @right.to_ruby, m: @mask, s: @sign_fix }
end

#to_tf(l = "") ⇒ Object

Convert to TensorFlow code.



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# File 'lib/HDLRuby/std/sequencer_sw.rb', line 2497

def to_tf(l = "")
  return TF_OPERATOR[@operator] % 
    { l: @left.to_tf, r: @right.to_tf, m: @mask, s: @sign_fix }
end