37403f1139
When moving a reference (pointer) to a register one needs to ADD to the pc i.e. one needs an add, not mov instruction
36 lines
1.0 KiB
Ruby
36 lines
1.0 KiB
Ruby
require_relative 'arm-helper'
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class TestMoves < MiniTest::Test
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include ArmHelper
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def test_mov
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code = @machine.mov :r1, 5
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assert_code code , :mov , [0x05,0x10,0xa0,0xe3] #e3 a0 10 05
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end
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def test_mov_pc
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code = @machine.mov :pc, 5
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assert_code code , :mov , [0x05,0xf0,0xa0,0xe3] #e3 a0 f0 06
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end
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def test_mov_256
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code = @machine.mov :r1, 256
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assert_code code , :mov , [0x01,0x1c,0xa0,0xe3] #e3 a0 1c 01
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end
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def test_mov_max_128
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code = @machine.mov :r1, 128
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assert_code code , :mov , [0x80,0x10,0xa0,0xe3] #e3 a0 10 80
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end
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def test_mov_big
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code = @machine.mov :r0, 0x222 # is not 8 bit and can't be rotated by the arm system in one instruction
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code.set_position(0)
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begin # mov 512(0x200) = e3 a0 0c 02 add 34(0x22) = e2 80 00 22
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assert_code code , :mov , [ 0x02,0x0c,0xa0,0xe3 , 0x22,0x00,0x80,0xe2]
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rescue Register::LinkException
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retry
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end
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end
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def test_mvn
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code = @machine.mvn :r1, 5
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assert_code code , :mvn , [0x05,0x10,0xe0,0xe3] #e3 e0 10 05
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end
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end
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