class Ascode::Interpreter::Math

Public Class Methods

bigger_than(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 38
def self.bigger_than(env)
  a = env.pop
  b = env.pop
  env.push a > b ? 1 : 0
end
change_sign(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 69
def self.change_sign(env)
  env.push(-1 * env.pop)
end
decrement(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 33
def self.decrement(env)
  a = env.pop
  env.push a - 1
end
divide(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 16
def self.divide(env)
  a = env.pop
  b = env.pop
  env.push a / b
end
equal(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 50
def self.equal(env)
  a = env.pop
  b = env.pop
  env.push a == b ? 1 : 0
end
even(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 56
def self.even(env)
  env.push env.pop.even? ? 1 : 0
end
increment(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 28
def self.increment(env)
  a = env.pop
  env.push a + 1
end
invert(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 60
def self.invert(env)
  a = env.pop
  if a.zero?
    env.push 1
  else
    env.push 0
  end
end
less_than(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 44
def self.less_than(env)
  a = env.pop
  b = env.pop
  env.push a < b ? 1 : 0
end
minus(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 10
def self.minus(env)
  a = env.pop
  b = env.pop
  env.push a - b
end
multiply(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 22
def self.multiply(env)
  a = env.pop
  b = env.pop
  env.push a * b
end
plus(env) click to toggle source
# File lib/ascode/interpreter/math.rb, line 4
def self.plus(env)
  a = env.pop
  b = env.pop
  env.push a + b
end