rubyx/test/support/risc_interpreter.rb
2018-07-01 21:27:27 +03:00

124 lines
3.2 KiB
Ruby

require "util/eventable"
require "risc/interpreter"
require_relative "compiling"
module Risc
module Ticker
include ScopeHelper
def setup
Parfait.boot!
Risc.boot!
RubyX::RubyXCompiler.new(@string_input).ruby_to_binary( :interpreter)
@interpreter = Interpreter.new
@interpreter.start_machine
end
alias :do_setup :setup
# check the given array of instructions is what the interpreter actually does
# possible second argument ignores the given amount, usually up until main
def check_chain( should , start_at = 0 )
ticks( start_at ) if start_at > 0
should.each_with_index do |name , index|
got = ticks(1)
assert_equal got.class ,name , "Wrong class for #{index + 1 - start_at}, expect #{name} , got #{got}"
end
end
# check the main only, ignoring the __init instructions
def check_main_chain( should )
check_chain( should , main_at)
end
# how many instruction up until the main starts, ie
# ticks(main_at) will be the label for main
def main_at
26
end
def get_return
assert_equal Parfait::Message , @interpreter.get_register(:r8).class
@interpreter.get_register(:r0)
end
# do as many as given ticks in the main, ie main_at more
def main_ticks(num)
ticks( main_at + num)
end
# do a certain number of steps in the interpreter and return the last executed instruction
def ticks( num )
last = nil
num.times do
last = @interpreter.instruction
@interpreter.tick
end
return last
end
# collect the classes of all executed istructions
def all_classes(max = 300)
classes = []
tick = 1
begin
while true and (classes.length < max)
cl = ticks(1).class
tick += 1
classes << cl
break if cl == NilClass
end
rescue => e
puts "Error at tick #{tick}"
puts e
puts e.backtrace
end
classes
end
# do the setup, compile and run the input (a main) to the end
def run_main_return(input)
run_main("return #{input}")
end
# get the return from the message (not exit code)
# exit code must be int
def get_message_return
@interpreter.get_register(:r8).return_value
end
def run_main(input)
@string_input = as_main(input)
do_setup
run_all
end
# wrap the input in Space (main is assumed to be part of it)
def run_space(input)
@string_input = in_Space(input)
do_setup
run_all
end
def run_all
@interpreter.tick while(@interpreter.instruction)
end
# for chaning the tests quickly output all instructions that are executed
def show_ticks
classes = all_classes
output_classes(classes)
end
# show all instructions of the main only
def show_main_ticks
classes = all_classes
classes = classes.slice(main_at , 1000)
output_classes(classes)
end
def output_classes(classes)
str = classes.to_s.gsub("Risc::","")
all = str.split(",").each_slice(5).collect {|line| " " + line.join(",")}
puts all.join(",\n")
puts "length = #{classes.length}"
exit(1)
end
end
end