4a8bb32039
forgot that arm has no division (or respectively only later models have) many magic formulae out there, none seem to work 1000% on the interpreter. some big 0 ending numbers are 1 off.
108 lines
2.5 KiB
Ruby
108 lines
2.5 KiB
Ruby
require_relative 'helper'
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class TestPutiRT < MiniTest::Test
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include RuntimeTests
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def test_mod4
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[2,3,4,5,10,12].each do |m|
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@string_input = "return #{m}.mod4()"
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check_return m % 4
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end
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end
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# if you multiply i by "by" the return is the high 32 bits
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def high_times( i , by_high , by_low)
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by = by_high * 65536 + by_low
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by *= i
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by /= 65536
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by /= 65536
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return by
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end
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# if you multiply i by "by" the return is the low 32 bits
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def low_times( i , by_high , by_low)
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by = by_high * 65536 + by_low
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by *= i
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return (by & 0xffffffff)
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end
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def test_hightimes
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[2,3,4,5,10,121212 , 12345 , 3456 , 234567].each do |m|
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@string_input = "return #{m}.high_times(12 , 333)"
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check_return high_times(m,12,333)
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end
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end
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def test_lowtimes
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[2,3,4,5,10 , 3456 , 12345 , 121212 , 234567].each do |m|
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@string_input = "return #{m}.low_times(14 , 33)"
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check_return low_times(m,14,33)
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end
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end
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# finally settled on the long version in http://www.sciencezero.org/index.php?title=ARM:_Division_by_10
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# also the last looked good, but some bug is admittedly in all the ones i tried
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# (off course the bug is not included in the test, but easy to achieve with random numbers )
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# for high numbers with ending 0 they are all 1 low. Possibly Interpreter bug ?
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def test_div10
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[2,3,4,5,10 , 3456 , 12345 , 121212 , 234567].each do |m|
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@string_input = "return #{m}.div10()"
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check_return m / 10
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end
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end
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def test_as_char1
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@string_input = "return 5.as_char()"
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check_return 53
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end
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def test_as_char2
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@string_input = "return 10.as_char()"
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check_return 32
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end
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def test_tos_one_digit
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@string_input = "Word five = 5.to_s()
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five.putstring()"
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@stdout = " 5"
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check
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end
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def test_tos_zero
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@string_input = "Word five = 0.to_s()
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five.putstring()"
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@stdout = " 0"
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check
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end
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def test_tos_two_digit
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@string_input = "Word five = 15.to_s()
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five.putstring()"
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@stdout = " 15"
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check
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end
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def test_tos_three_digit
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@string_input = "Word five = 150.to_s()
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five.putstring()"
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@stdout = " 150"
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check
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end
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def test_puti_four_digit
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@string_input = "return 1234.puti()"
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@stdout = " 1234"
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check_return 1234
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end
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def test_puti_seven_digit
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@string_input = "return 1234567.puti()"
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@stdout = " 1234567"
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check_return 1234567
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end
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def test_puti_eigth_digit
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@string_input = "return 123445678.puti()"
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@stdout = " 123445678"
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check_return 123445678
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end
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end
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