Class: HDLRuby::High::SystemT

Inherits:
Low::SystemT show all
Includes:
Hmissing, Hmux, SingletonExtend
Defined in:
lib/HDLRuby/hruby_high.rb,
lib/HDLRuby/hruby_rsim.rb,
lib/HDLRuby/hruby_rcsim.rb,
lib/HDLRuby/hruby_rsim_vcd.rb,
lib/HDLRuby/hruby_rsim_mute.rb,
lib/HDLRuby/hruby_high_fullname.rb

Overview

Library for describing adding the fullname method to HDLRuby::High objects.

Constant Summary collapse

High = 
HDLRuby::High

Constants included from Hmissing

Hmissing::NAMES

Constants included from Low::Low2Symbol

Low::Low2Symbol::Low2SymbolPrefix, Low::Low2Symbol::Low2SymbolTable, Low::Low2Symbol::Symbol2LowTable

Instance Attribute Summary collapse

Attributes inherited from Low::SystemT

#name, #scope

Attributes included from Low::Hparent

#parent

Instance Method Summary collapse

Methods included from Hmux

#mux

Methods included from Hmissing

#method_missing

Methods included from SingletonExtend

#eigen_extend

Methods inherited from Low::SystemT

#add_inout, #add_input, #add_output, #bit2vector2inner!, #blocks2seq!, #boolean_in_assign2select!, #break_concat_assigns!, #break_types!, #c_code_allocate, #casts_without_expression!, #cleanup!, #connections_to_behaviors!, #delete_inout!, #delete_input!, #delete_output!, #each_deep, #each_inout, #each_input, #each_output, #each_signal, #each_signal_all, #each_signal_deep, #each_systemT_deep, #each_systemT_deep_ref, #eql?, #explicit_types!, #extract_port_assign!, get, #get_all_inouts, #get_all_inputs, #get_all_outputs, #get_all_signals, #get_by_name, #get_inout, #get_input, #get_interface, #get_output, #get_signal, #has_inout?, #has_input?, #has_output?, #has_signal?, #hash, #initial_concat_to_timed!, #map_inouts!, #map_inputs!, #map_outputs!, #mixblocks2seq!, #outread2inner!, #par_in_seq2seq!, #port_assign?, #port_output_connection?, #replace_names!, #select2case!, #set_name!, #set_scope!, #signal2subs!, #to_c, #to_c_code, #to_ch, #to_global_systemTs!, #to_hdr, #to_high, #to_upper_space!, #to_verilog, #to_vhdl, #with_boolean!, #with_port!, #with_var!, #wrapper, #wrapper=

Methods included from Low::ForceName

#extend_name!, #force_name!

Methods included from Low::Low2Symbol

#to_sym

Methods included from Low::Hparent

#hierarchy, #no_parent!, #scope

Constructor Details

#initialize(name, *mixins, &ruby_block) ⇒ SystemT

Creates a new high-level system type named +name+ and inheriting from +mixins+.

If name is hash, it is considered the system is unnamed and the

table is used to rename its signals or instances.

The proc +ruby_block+ is executed when instantiating the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 353

def initialize(name, *mixins, &ruby_block)
    # Initialize the system type structure.
    super(name,Scope.new(name,self))
    # puts "new systemT=#{self}"

    # Initialize the set of extensions to transmit to the instances'
    # eigen class
    @singleton_instanceO = Namespace.new(self.scope)

    # Create the public namespace.
    @public_namespace = Namespace.new(self.scope)

    # Initialize the list of tasks to execute on the instance.
    @on_instances = []

    # Check and set the mixins.
    mixins.each do |mixin|
        unless mixin.is_a?(SystemT) then
            raise AnyError,
                  "Invalid class for inheriting: #{mixin.class}."
        end
    end
    @to_includes = mixins

    # The list of systems the current system is expanded from if any.
    # The first one is the main system, the other ones are the
    # mixins.
    @generators = []

    # Prepare the instantiation methods
    make_instantiater(name,SystemI,&ruby_block)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class HDLRuby::High::Hmissing

Instance Attribute Details

#instance_class ⇒ Object (readonly)

The instantiation target class.



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# File 'lib/HDLRuby/hruby_high.rb', line 639

def instance_class
  @instance_class
end

#multithread ⇒ Object (readonly)

Tell if the simulation is in multithread mode or not.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 20

def multithread
  @multithread
end

#public_namespace ⇒ Object (readonly)

The public namespace

NOTE: the private namespace is the namespace of the scope object.



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# File 'lib/HDLRuby/hruby_high.rb', line 343

def public_namespace
  @public_namespace
end

#rcsystemT ⇒ Object (readonly)

The access to the C version of the systemT



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# File 'lib/HDLRuby/hruby_rcsim.rb', line 94

def rcsystemT
  @rcsystemT
end

Instance Method Details

#add_generator(gen) ⇒ Object

Adds a generator system.



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# File 'lib/HDLRuby/hruby_high.rb', line 588

def add_generator(gen) 
    unless gen.is_a?(SystemT) then
        raise "Invalid class for a generator system"
    end
    @generators << gen
end

#add_sig_active(sig) ⇒ Object

Add +sig+ to the list of active signals.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 42

def add_sig_active(sig)
    # puts "Adding activated signal=#{sig.fullname}"
    @sig_active << sig
end

#add_timed_behavior(beh) ⇒ Object

Add timed behavior +beh+. Returns the id of the timed behavior.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 29

def add_timed_behavior(beh)
    @timed_behaviors << beh
    @total_timed_behaviors += 1
    return @total_timed_behaviors - 1
end

#add_untimed(obj) ⇒ Object

Add untimed objet +obj+



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# File 'lib/HDLRuby/hruby_rsim.rb', line 23

def add_untimed(obj)
    @untimeds << obj
end

#advance ⇒ Object

Advance the global simulator.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 48

def advance
    # # Display the time
    # self.show_time
    shown_values = {}
    # Get the behaviors waiting on activated signals.
    until @sig_active.empty? do
        # puts "sig_active.size=#{@sig_active.size}"
        # puts "sig_active=#{@sig_active.map {|sig| sig.fullname}}"
        # Look for the behavior sensitive to the signals.
        # @sig_active.each do |sig|
        #     sig.each_anyedge { |beh| @sig_exec << beh }
        #     if (sig.c_value.zero? && !sig.f_value.zero?) then
        #         # puts "sig.c_value=#{sig.c_value.content}"
        #         sig.each_posedge { |beh| @sig_exec << beh }
        #     elsif (!sig.c_value.zero? && sig.f_value.zero?) then
        #         sig.each_negedge { |beh| @sig_exec << beh }
        #     end
        # end
        @sig_active.each do |sig|
            next if (sig.c_value.eql?(sig.f_value))
            # next if (sig.c_value.to_vstr == sig.f_value.to_vstr)
            sig.each_anyedge { |beh| @sig_exec << beh }
            if (sig.c_value.zero?) then
                # puts "sig.c_value=#{sig.c_value.content}"
                sig.each_posedge { |beh| @sig_exec << beh }
            elsif (!sig.c_value.zero?) then
                sig.each_negedge { |beh| @sig_exec << beh }
            end
        end
        # Update the signals.
        @sig_active.each { |sig| sig.c_value = sig.f_value }
        # puts "first @sig_exec.size=#{@sig_exec.size}"
        @sig_exec.uniq! {|beh| beh.object_id }
        # Display the activated signals.
        @sig_active.each do |sig|
            if !shown_values[sig].eql?(sig.f_value) then
                self.show_signal(sig) 
                shown_values[sig] = sig.f_value
            end
        end
        # Clear the list of active signals.
        @sig_active.clear
        # puts "sig_exec.size=#{@sig_exec.size}"
        # Execute the relevant behaviors and connections.
        @sig_exec.each { |obj| obj.execute(:par) }
        @sig_exec.clear
        @sig_active.uniq! {|sig| sig.object_id }
        # puts "@sig_active.size=#{@sig_active.size}"
        # Advance time.
        @time = (@timed_behaviors.min {|b0,b1|  b0.time <=> b1.time }).time
    end
    # Display the time
    self.show_time
end

#as(system) ⇒ Object

Casts as an included +system+.

NOTE: use the includes of the scope.



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# File 'lib/HDLRuby/hruby_high.rb', line 834

def as(system)
    # return self.scope.as(system.scope)
    return self.scope.as(system)
end

#each_export(&ruby_block) ⇒ Object

Iterates over the exported constructs

NOTE: look into the scope.



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# File 'lib/HDLRuby/hruby_high.rb', line 583

def each_export(&ruby_block)
    @scope.each_export(&ruby_block)
end

#each_generator(&ruby_block) ⇒ Object

Iterates over the origin systems.

Returns an enumerator if no ruby block is given.



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# File 'lib/HDLRuby/hruby_high.rb', line 598

def each_generator(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:each_generator) unless ruby_block
    # A block? Apply it on each generator.
    @generators.each(&ruby_block)
end

#each_instance_proc(&ruby_block) ⇒ Object

Iterates over the instance procedures.

Returns an enumerator if no ruby block is given.



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# File 'lib/HDLRuby/hruby_high.rb', line 644

def each_instance_proc(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:each_instance_proc) unless ruby_block
    # A block? Apply it on each input signal instance.
    @instance_procs.each(&ruby_block)
end

#each_on_instance(&ruby_block) ⇒ Object

Iterate over the task to apply on the instances of the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 710

def each_on_instance(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:each_on_instance) unless ruby_block
    # A block? Apply it on each overload if any.
    @on_instances.each(&ruby_block)
end

#each_signal_all_with_included(&ruby_block) ⇒ Object

Iterates over the all signals (input, output, inout, inner, constant), i.e, also the ones of the included systems.

Returns an enumerator if no ruby block is given.



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# File 'lib/HDLRuby/hruby_high.rb', line 540

def each_signal_all_with_included(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:each_signal_all_with_included) unless ruby_block
    # Iterate on all the signals of the current system.
    self.each_signal_all(&ruby_block)
    # Recurse on the included systems.
    self.scope.each_included do |included|
        included.each_signal_all_with_included(&ruby_block)
    end
end

#each_signal_with_included(&ruby_block) ⇒ Object

Iterates over the all interface signals, i.e, also the ones of the included systems.

Returns an enumerator if no ruby block is given.



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# File 'lib/HDLRuby/hruby_high.rb', line 555

def each_signal_with_included(&ruby_block)
    # No ruby block? Return an enumerator.
    return to_enum(:each_signal_with_included) unless ruby_block
    # Iterate on all the signals of the current system.
    self.each_signal(&ruby_block)
    # Recurse on the included systems.
    self.scope.each_included do |included|
        included.each_signal_with_included(&ruby_block)
    end
end

#eigenize(instance) ⇒ Object

Make a system eigen of a given +instance+.



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# File 'lib/HDLRuby/hruby_high.rb', line 677

def eigenize(instance)
    unless instance.systemT == self then
        raise "Cannot eigenize system #{self.name} to instance #{instance.name}"
    end
    # The instance becames the owner.
    @owner = instance
    # Fill the public namespace
    space = self.public_namespace
    # Interface signals
    self.each_signal do |signal|
        # puts "signal=#{signal.name}"
        space.send(:define_singleton_method,signal.name) do
            RefObject.new(instance.to_ref,signal)
        end
    end
    # Exported objects
    self.each_export do |export|
        # puts "export=#{export.name}"
        space.send(:define_singleton_method,export.name) do
            RefObject.new(instance.to_ref,export)
        end
    end

    return self
end

#expand(name, *args) ⇒ Object

Expands the system with possible arugments +args+ to a new system named +name+.



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# File 'lib/HDLRuby/hruby_high.rb', line 653

def expand(name, *args)
    # puts "expand #{self.name} to #{name}"
    # Create the new system.
    expanded = self.class.new(name.to_s) {}
    # Include the mixin systems given when declaring the system.
    @to_includes.each { |system| expanded.scope.include(system) }
    # Include the previously includeds. */
    self.scope.each_included { |system| expanded.scope.include(system) }

    # Sets the generators of the expanded result.
    expanded.add_generator(self)
    # puts "expanded=#{expanded}"
    @to_includes.each { |system| expanded.add_generator(system) }
    # Also for the previously includeds. */
    self.scope.each_included.each { |system| expanded.add_generator(system) }

    # Fills the scope of the expanded class.
    # puts "Build top with #{self.name} for #{name}"
    expanded.scope.build_top(self.scope,*args)
    # puts "Top built with #{self.name} for #{name}"
    return expanded
end

#extend(system) ⇒ Object

Extend the class according to another +system+.



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# File 'lib/HDLRuby/hruby_high.rb', line 824

def extend(system)
    # Adds the singleton methods
    self.eigen_extend(system)
    # Adds the singleton methods for the instances.
    @singleton_instanceO.eigen_extend(system.singleton_instance)
end

#fill_interface_low(systemTlow) ⇒ Object

Fills the interface of a low level system.



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# File 'lib/HDLRuby/hruby_high.rb', line 854

def fill_interface_low(systemTlow)
    # Adds its input signals.
    self.each_input { |input|  systemTlow.add_input(input.to_low) }
    # Adds its output signals.
    self.each_output { |output| systemTlow.add_output(output.to_low) }
    # Adds its inout signals.
    self.each_inout { |inout|  systemTlow.add_inout(inout.to_low) }
    # Adds the interface of its included systems.
    self.scope.each_included do |included|
        included.fill_interface_low(systemTlow)
    end
end

#fill_low(systemTlow) ⇒ Object

Fills a low level system with self's contents.

NOTE: name conflicts are treated in the current NameStack state.



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# File 'lib/HDLRuby/hruby_high.rb', line 870

def fill_low(systemTlow)
    # Fills the interface
    self.fill_interface_low(systemTlow)
end

#fullname ⇒ Object

Returns the name of the signal with its hierarchy.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 317

def fullname
    @fullname ||= (self.parent ? self.parent.fullname + ":" : "") + 
        self.name.to_s
    return @fullname
end

#get_inout_with_included(name) ⇒ Object

Gets an inout signal by +name+ considering also the included systems



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# File 'lib/HDLRuby/hruby_high.rb', line 523

def get_inout_with_included(name)
    # Look in self.
    found = self.get_inout(name)
    return found if found
    # Not in self, look in the included systems.
    self.scope.each_included do |included|
        found = included.get_inout_with_included(name)
        return found if found
    end
    # Not found
    return nil
end

#get_input_with_included(name) ⇒ Object

Gets an input signal by +name+ considering also the included systems



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# File 'lib/HDLRuby/hruby_high.rb', line 493

def get_input_with_included(name)
    # Look in self.
    found = self.get_input(name)
    return found if found
    # Not in self, look in the included systems.
    self.scope.each_included do |included|
        found = included.get_input_with_included(name)
        return found if found
    end
    # Not found
    return nil
end

#get_interface_with_included(i) ⇒ Object

Get one of all the interface signal by index, i.e., also the ones of the included systems.



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# File 'lib/HDLRuby/hruby_high.rb', line 568

def get_interface_with_included(i)
    return each_signal_with_included.to_a[i]
end

#get_output_with_included(name) ⇒ Object

Gets an output signal by +name+ considering also the included systems



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# File 'lib/HDLRuby/hruby_high.rb', line 508

def get_output_with_included(name)
    # Look in self.
    found = self.get_output(name)
    return found if found
    # Not in self, look in the included systems.
    self.scope.each_included do |included|
        found = included.get_output_with_included(name)
        return found if found
    end
    # Not found
    return nil
end

#get_signal_with_included(name) ⇒ Object

Gets a signal by +name+ considering also the included systems



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# File 'lib/HDLRuby/hruby_high.rb', line 574

def get_signal_with_included(name)
    return get_input_with_included(name) ||
           get_output_with_included(name) ||
           get_inout_with_included(name)
end

#get_vars_with_fullname(vars_with_fullname = {}) ⇒ Object

Gets the VCD variables with their long name.



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# File 'lib/HDLRuby/hruby_rsim_vcd.rb', line 96

def get_vars_with_fullname(vars_with_fullname = {})
    # Recurse on the signals.
    self.each_signal do |sig|
        sig.get_vars_with_fullname(vars_with_fullname)
        # vars_with_fullname[sig] = HDLRuby::High.vcd_name(sig.fullname)
    end
    # Recurse on the scope.
    return self.scope.get_vars_with_fullname(vars_with_fullname)
end

#get_vars_with_idstr(vars_with_idstr = {}) ⇒ Object

Gets the VCD variables with their id string.



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# File 'lib/HDLRuby/hruby_rsim_vcd.rb', line 107

def get_vars_with_idstr(vars_with_idstr = {})
    # # Adds the signals of the interface of the system.
    # self.each_signal do |sig|
    #     vars_with_idstr[sig] = HDLRuby::High.vcd_idstr(sig)
    # end
    # Recurse on the signals.
    self.each_signal do |sig|
        sig.get_vars_with_idstr(vars_with_idstr)
    end
    # Recurse on the scope.
    return self.scope.get_vars_with_idstr(vars_with_idstr)
end

#init_sim(systemT) ⇒ Object

Initialize the simulation for system +systemT+.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 229

def init_sim(systemT)
    # puts "init_sim for #{self} (#{self.name})"
    # Recurse on the signals.
    self.each_signal { |sig| sig.init_sim(systemT) }
    # Recure on the scope.
    self.scope.init_sim(systemT)
end

#init_untimeds ⇒ Object

Initialize the untimed objects.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 238

def init_untimeds
    @untimeds.each do |obj|
        if obj.is_a?(Behavior) then
            obj.block.execute(:seq)
        else
            obj.execute(:seq)
        end
    end
end

#inout(*names) ⇒ Object

Declares high-level bit inout signals named +names+.

Retuns the last declared input.



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# File 'lib/HDLRuby/hruby_high.rb', line 819

def inout(*names)
    self.make_inouts(bit,*names)
end

#input(*names) ⇒ Object

Declares high-level bit input signals named +names+.

Retuns the last declared input.



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# File 'lib/HDLRuby/hruby_high.rb', line 805

def input(*names)
    self.make_inputs(bit,*names)
end

#instantiate(i_name, *args) ⇒ Object Also known as: call

Instantiate the system type to an instance named +i_name+ with possible arguments +args+.



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# File 'lib/HDLRuby/hruby_high.rb', line 720

def instantiate(i_name,*args)
    # Create the eigen type.
    # eigen = self.expand(High.names_create(i_name.to_s + ":T"), *args)
    eigen = self.expand(HDLRuby.uniq_name(i_name.to_s + ":T"), *args)

    # Create the instance and sets its eigen system to +eigen+.
    instance = @instance_class.new(i_name,eigen)
    # puts "instance=#{instance}"
    eigen.eigenize(instance)

    # Extend the instance.
    instance.eigen_extend(@singleton_instanceO)
    # puts "instance scope= #{instance.systemT.scope}"
    # Add the instance if instantiating within another system.
    High.top_user.send(:add_systemI,instance) if High.top_user
    
    # Execute the post instantiation tasks.
    eigen.each_on_instance { |task| task.(instance) }

    # Return the resulting instance
    return instance
end

#make_inouts(type, *names) ⇒ Object

Creates and adds a set of inouts typed +type+ from a list of +names+.

NOTE: a name can also be a signal, is which case it is duplicated.



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# File 'lib/HDLRuby/hruby_high.rb', line 472

def make_inouts(type, *names)
    res = nil
    names.each do |name|
        if name.respond_to?(:to_sym) then
            res = self.add_inout(SignalI.new(name,type,:inout))
        elsif name.is_a?(Hash) then
            # Names associated with values.
            names.each do |name,value|
                res = self.add_inner(
                    SignalI.new(name,type,:inner,value))
            end
        else
            raise AnyError, "Invalid class for a name: #{name.class}"
        end
    end
    return res
end

#make_inputs(type, *names) ⇒ Object

Creates and adds a set of inputs typed +type+ from a list of +names+.

NOTE: a name can also be a signal, is which case it is duplicated.



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# File 'lib/HDLRuby/hruby_high.rb', line 422

def make_inputs(type, *names)
    # Check if called within the top scope of the block.
    if High.top_user != @scope then
        # No, cannot make an input from here.
        raise AnyError,
              "Input signals can only be declared in the top scope of a system."
    end
    res = nil
    names.each do |name|
        if name.respond_to?(:to_sym) then
            res = self.add_input(SignalI.new(name,type,:input))
        elsif name.is_a?(Hash) then
            # Names associated with values.
            names.each do |name,value|
                res = self.add_inner(
                    SignalI.new(name,type,:inner,value))
            end
        else
            raise AnyError, "Invalid class for a name: #{name.class}"
        end
    end
    return res
end

#make_instantiater(name, klass, &ruby_block) ⇒ Object

Generates the instantiation capabilities including an instantiation method +name+ for hdl-like instantiation, target instantiation as +klass+, added to the calling object, and whose eigen type is initialized by +ruby_block+.

NOTE: actually creates two instantiater, a general one, being registered in the namespace stack, and one for creating an array of instances being registered in the Array class.



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# File 'lib/HDLRuby/hruby_high.rb', line 754

def make_instantiater(name,klass,&ruby_block)
    # puts "make_instantiater with name=#{name}"
    # Set the instanciater.
    @instance_procs = [ ruby_block ]
    # Set the target instantiation class.
    @instance_class = klass

    # Unnamed types do not have associated access method.
    return if name.empty?

    obj = self # For using the right self within the proc

    # Create and register the general instantiater.
    High.space_reg(name) do |*args|
        # puts "Instantiating #{name} with args=#{args.size}"
        # If no arguments, return the system as is
        return obj if args.empty?
        # Are there any generic arguments?
        if ruby_block.arity > 0 then
            # Yes, must specialize the system with the arguments.
            # If arguments, create a new system specialized with them
            return SystemT.new(:"") { include(obj,*args) }
        end
        # It is the case where it is an instantiation
        # Get the names from the arguments.
        i_names = args.shift
        # puts "i_names=#{i_names}(#{i_names.class})"
        i_names = [*i_names]
        instance = nil # The current instance
        i_names.each do |i_name|
            # Instantiate.
            instance = obj.instantiate(i_name,*args)
        end
        # # Return the last instance.
        instance
    end

    # Create and register the array of instances instantiater.
    ::Array.class_eval do
        define_method(name) { |*args| make(name,*args) }
    end
end

#make_outputs(type, *names) ⇒ Object

Creates and adds a set of outputs typed +type+ from a list of +names+.

NOTE: a name can also be a signal, is which case it is duplicated.



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# File 'lib/HDLRuby/hruby_high.rb', line 449

def make_outputs(type, *names)
    # puts "type=#{type.inspect}"
    res = nil
    names.each do |name|
        # puts "name=#{name}"
        if name.respond_to?(:to_sym) then
            res = self.add_output(SignalI.new(name,type,:output))
        elsif name.is_a?(Hash) then
            # Names associated with values.
            name.each do |key,value|
                res = self.add_output(
                    SignalI.new(key,type,:output,value))
            end
        else
            raise AnyError, "Invalid class for a name: #{name.class}"
        end
    end
    return res
end

#merge_included! ⇒ Object

Merge the included systems interface in current system. NOTE: incompatible with further to_low transformation.



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# File 'lib/HDLRuby/hruby_high.rb', line 844

def merge_included!
    # puts "merge_included! for system=#{self.name}"
    # Recurse on the system instances.
    self.scope.merge_included!
    # Merge for current system.
    self.scope.merge_included(self)
end

#namespace ⇒ Object

Gets the private namespace of the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 611

def namespace
    return self.scope.namespace
end

#of?(system) ⇒ Boolean

Tell if the current system is a descedent of +system+

Returns:

  • (Boolean) 


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# File 'lib/HDLRuby/hruby_high.rb', line 388

def of?(system)
    # Maybe self is system.
    if (self == system) then
        # Yes, consider it is adescendent of system.
        return true
    else
        # Look into the generators.
        @generators.each do |generator|
            return true if generator.of?(system)
        end
        # Look into the included systems.
        @to_includes.each do |included|
            return true if included.of?(system)
        end
    end
    # Not found.
    return false
end

#on_instance(&ruby_block) ⇒ Object

Adds a task to apply on the instances of the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 705

def on_instance(&ruby_block)
    @on_instances << ruby_block
end

#open(&ruby_block) ⇒ Object

Opens for extension.

NOTE: actually executes +ruby_block+ in the context of the scope of the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 624

def open(&ruby_block)
    # Are we instantiating current system?
    if (High.space_include?(self.scope.namespace)) then
        # Yes, execute the ruby block in the top context of the
        # system.
        # self.scope.open(&ruby_block)
        self.run(&ruby_block)
    else
        # No, add the ruby block to the list of block to execute
        # when instantiating.
        @instance_procs << ruby_block
    end
end

#output(*names) ⇒ Object

Declares high-level bit output signals named +names+.

Retuns the last declared input.



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# File 'lib/HDLRuby/hruby_high.rb', line 812

def output(*names)
    self.make_outputs(bit,*names)
end

#remove_timed_behavior(beh) ⇒ Object

Remove timed beahvior +beh+



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# File 'lib/HDLRuby/hruby_rsim.rb', line 36

def remove_timed_behavior(beh)
    # puts "remove_timed_behavior"
    @timed_behaviors.delete(beh)
end

#run(&ruby_block) ⇒ Object

Execute +ruby_block+ in the context of the system.



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# File 'lib/HDLRuby/hruby_high.rb', line 616

def run(&ruby_block)
    self.scope.open(&ruby_block)
end

#run_ack ⇒ Object

Acknowledge the run request the executable timed behavior.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 280

def run_ack
    # puts "run_ack"
    mask = 0
    @tim_exec.each { |beh| mask |= 2**beh.id }
    mask = 2**@total_timed_behaviors - 1 - mask
    @slave_flags_not &= mask
    @slave.broadcast
end

#run_done(id) ⇒ Object

Tell running part done for timed behavior +id+.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 260

def run_done(id)
    # puts "run_done with id=#{id}"
    @num_done += 1
    @slave_flags_not |= 2**id
    if @num_done == @tim_exec.size
        # puts "All done."
        @master_flag = 1
        @master.signal
    end
end

#run_init(&ruby_block) ⇒ Object

Initialize run for executing +ruby_block+



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# File 'lib/HDLRuby/hruby_rsim.rb', line 249

def run_init(&ruby_block)
    @mutex.synchronize(&ruby_block)
end

#run_req(id) ⇒ Object

Request for running for timed behavior +id+



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# File 'lib/HDLRuby/hruby_rsim.rb', line 254

def run_req(id)
    # puts "run_req with id=#{id} and @slave_flags_not=#{@slave_flags_not}"
    @slave.wait(@mutex) while @slave_flags_not[id] == 1
end

#run_wait ⇒ Object

Wait for all the run to complete.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 272

def run_wait
    # puts "run_wait"
    @master.wait(@mutex) unless @master_flag == 1
    @num_done = 0
    @master_flag = 0
end

#show_hierarchy(vcdout) ⇒ Object

Shows the hierarchy of the variables.



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# File 'lib/HDLRuby/hruby_rsim_vcd.rb', line 121

def show_hierarchy(vcdout)
    # puts "show_hierarchy for module #{self} (#{self.name})"
    # Shows the current level of hierarchy.
    vcdout << "$scope module #{HDLRuby::High.vcd_name(self.name)} $end\n"
    # Shows the interface signals.
    self.each_signal do |sig|
        sig.show_hierarchy(vcdout)
        # # puts "showing signal #{HDLRuby::High.vcd_name(sig.fullname)}"
        # vcdout << "$var wire #{sig.type.width} "
        # vcdout << "#{HDLRuby::High.vcd_idstr(sig)} "
        # vcdout << "#{HDLRuby::High.vcd_name(sig.name)} $end\n"
    end
    # Recurse on the scope.
    self.scope.show_hierarchy(vcdout)
    # Close the current level of hierarchy.
    vcdout << "$upscope $end\n"
end

#show_init(vcdout) ⇒ Object

Initializes the displayer for generating a vcd on +vcdout+



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# File 'lib/HDLRuby/hruby_rsim.rb', line 290

def show_init(simout)
    # Sets the simulation output.
    @simout = simout
end

#show_signal(sig) ⇒ Object

Displays the value of signal +sig+.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 301

def show_signal(sig)
    @simout.puts("#{sig.fullname}: #{sig.f_value.to_vstr}")
end

#show_string(str) ⇒ Object

Displays string +str+.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 311

def show_string(str)
    @simout.print(str)
end

#show_time ⇒ Object

Displays the time.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 296

def show_time
    @simout.puts("# #{@time}ps")
end

#show_value(val) ⇒ Object

Displays value +val+. NOTE: for now displays on the standard output and NOT the vcd.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 306

def show_value(val)
    @simout.print(val.to_vstr)
end

#sim(simout) ⇒ Object

Run the simulation from the current systemT and outputs the resuts on simout.



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# File 'lib/HDLRuby/hruby_rsim.rb', line 105

def sim(simout)
    HDLRuby.show "Initializing Ruby-level simulator..."
    HDLRuby.show "#{Time.now}#{show_mem}"
    # Merge the included.
    self.merge_included!
    # Process par in seq.
    self.par_in_seq2seq!
    # Initializes the time.
    @time = 0
    # Initializes the time and signals execution buffers.
    @tim_exec = []
    @sig_exec = []
    # Initilize the list of untimed objects.
    @untimeds = []
    # Initialize the list of currently exisiting timed behavior.
    @timed_behaviors = []
    # Initialize the list of activated signals.
    @sig_active = []
    # Initializes the total number of timed behaviors (currently
    # existing or not: used for generating the id of the behaviors).
    @total_timed_behaviors = 0
    # Initilizes the simulation.
    self.init_sim(self)
    # Initialize the displayer.
    self.show_init(simout)

    # Initialize the untimed objects.
    self.init_untimeds
    # puts "End of init_untimed."

    # Maybe there is nothing to execute.
    return if @total_timed_behaviors == 0

    # Is there more than one timed behavior.
    if @total_timed_behaviors <= 1 then
        # No, no need of multithreading.
        @multithread = false
        # Simple execute the block of the behavior.
        @timed_behaviors[0].block.execute(:seq)
    else
        # Yes, need of multithreading.
        @multithread = true
        # Initializes the run mutex and the conditions.
        @mutex = Mutex.new
        @master = ConditionVariable.new
        @master_flag = 0
        @slave = ConditionVariable.new
        @slave_flags_not = 0
        @num_done = 0

        # First all the timed behaviors are to be executed.
        @timed_behaviors.each {|beh| @tim_exec << beh }
        # But starts locked.
        @slave_flags_not = 2**@timed_behaviors.size - 1
        # Starts the threads.
        @timed_behaviors.each {|beh| beh.make_thread }

        HDLRuby.show "Starting Ruby-level simulator..."
        HDLRuby.show "#{Time.now}#{show_mem}"
        # Run the simulation.
        self.run_init do
            # # Wake the behaviors.
            # @timed_behaviors.each {|beh| beh.run }
            until @tim_exec.empty? do
                # Execute the time behaviors that are ready.
                self.run_ack
                self.run_wait
                # Advance the global simulator.
                self.advance
                # # Display the time
                # self.show_time
                # shown_values = {}
                # # Get the behaviors waiting on activated signals.
                # until @sig_active.empty? do
                #     # # Update the signals.
                #     # @sig_active.each { |sig| sig.c_value = sig.f_value }
                #     # puts "sig_active.size=#{@sig_active.size}"
                #     # Look for the behavior sensitive to the signals.
                #     @sig_active.each do |sig|
                #         sig.each_anyedge { |beh| @sig_exec << beh }
                #         if (sig.c_value.zero? && !sig.f_value.zero?) then
                #             # puts "sig.c_value=#{sig.c_value.content}"
                #             sig.each_posedge { |beh| @sig_exec << beh }
                #         elsif (!sig.c_value.zero? && sig.f_value.zero?) then
                #             sig.each_negedge { |beh| @sig_exec << beh }
                #         end
                #     end
                #     # Update the signals.
                #     @sig_active.each { |sig| sig.c_value = sig.f_value }
                #     # puts "first @sig_exec.size=#{@sig_exec.size}"
                #     @sig_exec.uniq! {|beh| beh.object_id }
                #     # Display the activated signals.
                #     @sig_active.each do |sig|
                #         if !shown_values[sig].eql?(sig.f_value) then
                #             self.show_signal(sig) 
                #             shown_values[sig] = sig.f_value
                #         end
                #     end
                #     # Clear the list of active signals.
                #     @sig_active.clear
                #     # puts "sig_exec.size=#{@sig_exec.size}"
                #     # Execute the relevant behaviors and connections.
                #     @sig_exec.each { |obj| obj.execute(:par) }
                #     @sig_exec.clear
                #     @sig_active.uniq! {|sig| sig.object_id }
                #     # puts "@sig_active.size=#{@sig_active.size}"
                # end

                # # Advance time.
                # @time = (@timed_behaviors.min {|b0,b1|  b0.time <=> b1.time }).time
                break if @timed_behaviors.empty?
                # Schedule the next timed behavior to execute.
                @tim_exec = []
                @timed_behaviors.each do |beh|
                    @tim_exec << beh if beh.time == @time
                end
                # puts "@tim_exec.size=#{@tim_exec.size}"
                # puts "@timed_bevaviors.size=#{@timed_behaviors.size}"
            end
        end
    end
end

#singleton_instance ⇒ Object

Gets class containing the extension for the instances.



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# File 'lib/HDLRuby/hruby_high.rb', line 606

def singleton_instance
    @singleton_instanceO.singleton_class
end

#to_low(name = self.name) ⇒ Object

Converts the system to HDLRuby::Low and set its +name+.



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# File 'lib/HDLRuby/hruby_high.rb', line 876

def to_low(name = self.name)
    name = name.to_s
    if name.empty? then
        raise AnyError, 
              "Cannot convert a system without a name to HDLRuby::Low."
    end
    # Create the resulting low system type.
    # systemTL = HDLRuby::Low::SystemT.new(High.names_create(name),
    systemTL = HDLRuby::Low::SystemT.new(HDLRuby.uniq_name(name),
                                           self.scope.to_low)
    # puts "New low from system #{self.name}: #{systemTL.name}"
    # # For debugging: set the source high object 
    # systemTL.properties[:low2high] = self.hdr_id
    # self.properties[:high2low] = systemTL

    # Fills the interface of the new system 
    # from the included systems.
    self.fill_low(systemTL)
    # Return theresulting system.
    return systemTL
end

#to_rcsim(rcowner = nil) ⇒ Object

Generate the C description of the systemT. +rcowner+ is the owner if any.



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# File 'lib/HDLRuby/hruby_rcsim.rb', line 98

def to_rcsim(rcowner = nil)
    # puts "to_rcsim for systemT=#{self.name}(#{self})"
    # Create the systemT C object.
    @rcsystemT = RCSim.rcsim_make_systemT(self.name.to_s)
    # Sets the owner if any.
    if rcowner then
        RCSim.rcsim_set_owner(@rcsystemT,rcowner)
    end
    # Create and add the interface signals.
    if self.each_input.any? then
        RCSim.rcsim_add_systemT_inputs(@rcsystemT,
                                       self.each_input.map do |sig|
            sig.to_rcsim(@rcsystemT)
        end)
    end
    if self.each_output.any? then
        RCSim.rcsim_add_systemT_outputs(@rcsystemT,
                                        self.each_output.map do |sig|
            sig.to_rcsim(@rcsystemT)
        end)
    end
    if self.each_inout.any? then
        RCSim.rcsim_add_systemT_inouts(@rcsystemT,
                                       self.each_inout.map do |sig|
            sig.to_rcsim(@rcsystemT)
        end)
    end
    # Create and add the scope.
    RCSim.rcsim_set_systemT_scope(@rcsystemT,
                                  self.scope.to_rcsim(@rcsystemT))

    # The owner is set afterward.
    # # Set the owner if any.
    # if @owner then
    #     if @owner.is_a?(SystemI) then
    #         puts "@owner=#{@owner} rcsystemI=#{@owner.rcsystemI.class}"
    #         RCSim.rcsim_set_owner(@rcsystemT,@owner.rcsystemI)
    #     end
    #     # The non-SystemI owner are discarded for the simulation.
    # end

    return @rcsystemT
end

#to_ref ⇒ Object

Converts to a new reference.



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# File 'lib/HDLRuby/hruby_high.rb', line 415

def to_ref
    return RefObject.new(this,self)
end

#to_user ⇒ Object

Converts to a namespace user.



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# File 'lib/HDLRuby/hruby_high.rb', line 409

def to_user
    # Returns the scope.
    return @scope
end