49 lines
1.1 KiB
Ruby
49 lines
1.1 KiB
Ruby
require_relative 'helper'
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require "asm/arm/code_generator"
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# try to test that the generation of basic instructions works
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class TestAsm < MiniTest::Test
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def setup
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@generator = Asm::Arm::CodeGenerator.new
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end
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def test_mov
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m = @generator.instance_eval { mov r0, 5 }.first
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assert_equal :mov , m.opcode
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assert ! m.affect_status #no s at the end, silly for mov anyway
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binary = @generator.assemble
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assert_equal 4 , binary.length
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should = [0x05,0x00,0xa0,0xe3]
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index = 0
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binary.each_byte do |byte |
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assert_equal should[index] , byte
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index += 1
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end
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end
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def test_sub
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m = @generator.instance_eval { subs r2, r0, 1 }.first
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assert_equal :sub , m.opcode
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assert m.affect_status #the s at the end
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binary = @generator.assemble
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assert_equal 4 , binary.length
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should = [0x01,0x20,0x50,0xe2]
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index = 0
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binary.each_byte do |byte |
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assert_equal should[index] , byte
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index += 1
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end
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end
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def saved_other
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@generator.instance_eval do
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mov r0, 5
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loop_start = label
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loop_start.set!
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subs r0, r0, 1
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bne loop_start
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bx lr
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end
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end
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end
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