rubyx/lib/slot_machine/instruction.rb
Torsten 4888b3b6db Starting to rework slot instructions that create risc
have to go through all and all macros and all thems tests. What did the wise man say: one step at a time
2020-03-22 14:31:43 +02:00

57 lines
2.0 KiB
Ruby

module SlotMachine
# Base class for SlotMachine instructions
# At the base class level instructions are a linked list.
#
# SlotMachine::Instructions are created by the Sol level as an intermediate step
# towards the next level down, the Risc level.
# SlotMachine and Risc are both abstract machines (ie have instructions), so both
# share the linked list functionality (In Util::List)
#
# To convert a SlotMachine instruction to it's Risc equivalent to_risc is called
#
class Instruction
include Util::List
def initialize( source , nekst = nil )
@source = source
@next = nekst
return unless source
unless source.is_a?(String) or
source.is_a?(Sol::Statement)
raise "Source must be string or Instruction, not #{source.class}"
end
end
attr_reader :source
# to_risc, like the name says, converts the instruction to it's Risc equivalent.
# The Risc machine is basically a simple register machine (kind of arm).
# In other words SlotMachine is the higher abstraction and so slot instructions convert
# to many (1-10) risc instructions
#
# The argument that is passed is a MethodCompiler, which has the method and some
# state about registers used. (also provides helpers to generate risc instructions)
def to_risc(compiler)
raise self.class.name + "_todo"
end
end
end
require_relative "basic_values"
require_relative "instruction/label"
require_relative "instruction/check"
require_relative "instruction/simple_call"
require_relative "instruction/dynamic_call"
require_relative "instruction/block_yield"
require_relative "instruction/resolve_method"
require_relative "instruction/truth_check"
require_relative "instruction/not_same_check"
require_relative "instruction/same_check"
require_relative "instruction/jump"
require_relative "instruction/return_jump"
require_relative "instruction/slot_load"
require_relative "instruction/return_sequence"
require_relative "instruction/message_setup"
require_relative "instruction/argument_transfer"