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removed arm and use as gem

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This commit is contained in:
Torsten Ruger
2015-07-18 14:12:20 +03:00
parent bae476657a
commit f4f703975b
32 changed files with 10 additions and 1452 deletions
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29
test/arm/arm-helper.rb
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require_relative '../helper'
# try to test that the generation of basic instructions works
# one instruction at a time, reverse testing from objdump --demangle -Sfghxp
# tests are named as per assembler code, ie test_mov testing mov instruction
# adc add and bic eor orr rsb rsc sbc sub mov mvn cmn cmp teq tst b call bx swi strb
module ArmHelper
# need Assembler and a block (see those classes)
def setup
@machine = Arm::ArmMachine
end
# code is what the generator spits out, at least one instruction worth (.first)
# the op code is wat was witten as assembler in the first place and the binary result
# is reversed and in 4 bytes as ruby can only do 31 bits and so we can't test with just one int (?)
def assert_code code , op , should
assert_equal op , code.opcode
io = StringIO.new
code.assemble(io)
binary = io.string
assert_equal should.length , binary.length , "code length wrong for #{code.inspect}"
index = 0
binary.each_byte do |byte |
assert_equal should[index] , byte , "byte #{index} 0x#{should[index].to_s(16)} != 0x#{byte.to_s(16)}"
index += 1
end
end
end

30
test/arm/test_add.rb
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require_relative 'arm-helper'
class TestAdd < MiniTest::Test
include ArmHelper
def test_adc
code = @machine.adc :r1, :r3, :r5
assert_code code , :adc , [0x05,0x10,0xa3,0xe0] #e0 a3 10 05
end
def test_add
code = @machine.add :r1 , :r1, :r3
assert_code code , :add , [0x03,0x10,0x81,0xe0] #e0 81 10 03
end
def test_add_const
code = @machine.add :r1 , :r1, 0x22
assert_code code , :add , [0x22,0x10,0x81,0xe2] #e2 81 10 22
end
def test_add_const_shift
code = @machine.add( :r1 , :r1 , 0x22 , shift_lsr: 8)
assert_code code , :add , [0x22,0x14,0x81,0xe2] #e2 81 14 23
end
def test_add_lst
code = @machine.add( :r1 , :r2 , :r3 , shift_lsr: 8)
assert_code code , :add , [0x23,0x14,0x82,0xe0] #e0 82 14 23
end
def test_big_add
code = @machine.add :r1 , :r1, 0x220
assert_code code , :add , [0x22,0x1e,0x81,0xe2] #e2 81 1e 22
end
end

7
test/arm/test_all.rb
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require_relative "test_stack"
require_relative "test_control"
require_relative "test_logic"
require_relative "test_add"
require_relative "test_move"
require_relative "test_memory"
require_relative "test_compare"

22
test/arm/test_compare.rb
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require_relative 'arm-helper'
class TestArmAsm < MiniTest::Test
include ArmHelper
def test_cmn
code = @machine.cmn :r1 , :r2
assert_code code , :cmn , [0x02,0x00,0x71,0xe1] #e1 71 00 02
end
def test_cmp
code = @machine.cmp :r1 , :r2
assert_code code , :cmp , [0x02,0x00,0x51,0xe1] #e1 51 00 02
end
def test_teq
code = @machine.teq :r1 , :r2
assert_code code , :teq , [0x02,0x00,0x31,0xe1] #e1 31 00 02
end
def test_tst
code = @machine.tst :r1 , :r2
assert_code code , :tst , [0x02,0x00,0x11,0xe1] #e1 11 00 02
end
end

21
test/arm/test_control.rb
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require_relative 'arm-helper'
class TestControl < MiniTest::Test
include ArmHelper
def test_b
# the address is what an assembler calculates (a signed number for the amount of instructions),
# ie the relative (to pc) address -8 (pipeline) /4 so save space
# so the cpu adds the value*4 and starts loading that (load, decode, execute)
code = @machine.b -4 #this jumps to the next instruction
assert_code code , :b , [0xff,0xff,0xff,0xea] #ea ff ff fe
end
def test_call #see comment above. bx not implemented (as it means into thumb, and no thumb here)
code = @machine.call -4 ,{} #this jumps to the next instruction
assert_code code , :call, [0xff,0xff,0xff,0xeb] #ea ff ff fe
end
def test_swi
code = @machine.swi 0x05
assert_code code , :swi , [0x05,0x00,0x00,0xef]#ef 00 00 05
end
end

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test/arm/test_logic.rb
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require_relative 'arm-helper'
class TestLogic < MiniTest::Test
include ArmHelper
def test_and # inst eval doesn't really work with and
code = @machine.and( :r1 , :r2 , :r3)
assert_code code , :and , [0x03,0x10,0x02,0xe0] #e0 01 10 03
end
def test_bic
code = @machine.bic :r2 , :r2 , :r3
assert_code code , :bic , [0x03,0x20,0xc2,0xe1] #e3 c2 20 44
end
def test_eor
code = @machine.eor :r2 , :r2 , :r3
assert_code code , :eor , [0x03,0x20,0x22,0xe0] #e0 22 20 03
end
def test_rsb
code = @machine.rsb :r1 , :r2 , :r3
assert_code code , :rsb , [0x03,0x10,0x62,0xe0]#e0 62 10 03
end
def test_rsc
code = @machine.rsc :r2 , :r3 , :r4
assert_code code , :rsc , [0x04,0x20,0xe3,0xe0]#e0 e3 20 04
end
def test_sbc
code = @machine.sbc :r3, :r4 , :r5
assert_code code , :sbc , [0x05,0x30,0xc4,0xe0]#e0 c4 30 05
end
def test_sub
code = @machine.sub :r2, :r0, 1
assert_code code, :sub , [0x01,0x20,0x40,0xe2] #e2 40 20 01
end
def test_subs
code = @machine.sub :r2, :r2, 1 , update_status: 1
assert_code code, :sub , [0x01,0x20,0x52,0xe2] #e2 52 20 01
end
def test_orr
code = @machine.orr :r2 , :r2 , :r3
assert_code code , :orr , [0x03,0x20,0x82,0xe1] #e1 82 20 03
end
end

37
test/arm/test_memory.rb
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require_relative 'arm-helper'
class TestMemory < MiniTest::Test
include ArmHelper
def test_ldr
code = @machine.ldr :r0, :r0
assert_code code, :ldr , [0x00,0x00,0x90,0xe5] #e5 90 00 00
end
def test_ldr_const_offset
code = @machine.ldr :r0, :r0 , 4
assert_code code, :ldr , [0x04,0x00,0x90,0xe5] #e5 90 00 04
end
def test_ldr_reg_offset
code = @machine.ldr :r0, :r1 , :r2
assert_code code, :ldr , [0x02,0x00,0x91,0xe6] #e6 91 00 02
end
def test_ldrb
code = @machine.ldrb :r0, :r0
assert_code code, :ldrb , [0x00,0x00,0xd0,0xe5] #e5 d0 00 00
end
def test_str
code = @machine.str :r0, :r1
assert_code code, :str , [0x00,0x00,0x81,0xe5] #e5 81 00 00
end
def test_strb_add
code = @machine.strb :r0, :r1 , 1 , flaggie: 1
assert_code code, :strb , [0x01,0x00,0xc1,0xe4] #e4 c1 00 01
end
def test_strb
code = @machine.strb :r0, :r0
assert_code code, :strb , [0x00,0x00,0xc0,0xe5] #e5 c0 00 00
end
end

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

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test/arm/test_stack.rb
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require_relative 'arm-helper'
class TestStack < MiniTest::Test
include ArmHelper
def test_push
code = @machine.push [:lr]
assert_code code , :push , [0x00,0x40,0x2d,0xe9] #e9 2d 40 00
end
def test_push_three
code = @machine.push [:r0,:r1,:lr]
assert_code code , :push , [0x03,0x40,0x2d,0xe9] #e9 2d 40 03
end
def test_push_no_link
code = @machine.push [:r0,:r1,:r2 ,:r3,:r4,:r5]
assert_code code , :push , [0x3f,0x00,0x2d,0xe9] #e9 2d 00 3f
end
def test_pop
code = @machine.pop [:pc]
assert_code code , :pop , [0x00,0x80,0xbd,0xe8] #e8 bd 80 00
end
def test_pop_three
code = @machine.pop [:r0,:r1,:pc]
assert_code code , :pop , [0x03,0x80,0xbd,0xe8] #e8 bd 80 03
end
def test_pop_no_pc
code = @machine.pop [:r0,:r1,:r2 ,:r3,:r4,:r5]
assert_code code , :pop , [0x3f,0x00,0xbd,0xe8] #e8 bd 00 3f
end
end

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test/test_all.rb
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# All working tests (ahm), still working on the others, so no use to be constantly reminded
require_relative "arm/test_all"
require "parfait/test_all"
require_relative "parfait/test_all"
require_relative "virtual/test_all"