waterfoul/spec/instructions/misc_spec.rb
2016-05-08 17:20:05 +10:00

41 lines
744 B
Ruby

require 'spec_helper'
describe Waterfoul::CPU do
before { $mmu = Waterfoul::MMU.new }
subject { Waterfoul::CPU.new }
describe '#stop_0' do
it 'sets stop flag' do
subject.stop_0
expect(subject.stop).to eq 1
end
end
describe '#halt' do
it 'sets the halt flag' do
subject.halt
expect(subject.halt).to eq 1
end
end
describe '#di' do
it 'resets the interupt flag' do
subject.di
expect(subject.ime).to eq 0
end
end
xdescribe 'prefix_cb' do
it 'increments pc by 1' do
subject.prefix_cb
expect(subject.pc).to eq 1
end
end
describe '#ei' do
it 'sets the interupt flag' do
subject.ei
expect(subject.ime).to eq 1
end
end
end