Some tests fail on x86_64 (amd64) architecture

[merkys]

12 tests are failing for v0.2.2:

  224 passing (138ms)
  12 failing

  1) add method
       overflow
         should return n:

      AssertionError [ERR_ASSERTION]: 4294967294 == -2
      + expected - actual

      -4294967294
      +-2
      
      at Context.<anonymous> (test/UINT32_add-test.js:92:14)

  2) negate method
       1
         should return -1:

      AssertionError [ERR_ASSERTION]: 4294967295 == -1
      + expected - actual

      -4294967295
      +-1
      
      at Context.<anonymous> (test/UINT32_negate-test.js:22:14)

  3) negate method
       low bit
         should return -n:

      AssertionError [ERR_ASSERTION]: 4294967293 == -3
      + expected - actual

      -4294967293
      +-3
      
      at Context.<anonymous> (test/UINT32_negate-test.js:33:14)

  4) negate method
       high bit
         should return -n:

      AssertionError [ERR_ASSERTION]: 4294836224 == -131072
      + expected - actual

      -4294836224
      +-131072
      
      at Context.<anonymous> (test/UINT32_negate-test.js:45:14)

  5) subtract method
       0-1
         should return -1:

      AssertionError [ERR_ASSERTION]: 4294967295 == -1
      + expected - actual

      -4294967295
      +-1
      
      at Context.<anonymous> (test/UINT32_subtract-test.js:33:14)

  6) subtract method
       low bit-high bit
         should return 0:

      AssertionError [ERR_ASSERTION]: 4294836225 == -131071
      + expected - actual

      -4294836225
      +-131071
      
      at Context.<anonymous> (test/UINT32_subtract-test.js:45:14)

  7) add method
       overflow
         should return n:

      AssertionError [ERR_ASSERTION]: 4294967294 == -2
      + expected - actual

      -4294967294
      +-2
      
      at Context.<anonymous> (test/UINT64_add-test.js:92:14)

  8) negate method
       1
         should return -1:

      AssertionError [ERR_ASSERTION]: 4294967295 == -1
      + expected - actual

      -4294967295
      +-1
      
      at Context.<anonymous> (test/UINT64_negate-test.js:22:14)

  9) negate method
       low bit
         should return -n:

      AssertionError [ERR_ASSERTION]: 4294967293 == -3
      + expected - actual

      -4294967293
      +-3
      
      at Context.<anonymous> (test/UINT64_negate-test.js:33:14)

  10) negate method
       high bit
         should return -n:

      AssertionError [ERR_ASSERTION]: 4294836224 == -131072
      + expected - actual

      -4294836224
      +-131072
      
      at Context.<anonymous> (test/UINT64_negate-test.js:45:14)

  11) subtract method
       0-1
         should return -1:

      AssertionError [ERR_ASSERTION]: 4294967295 == -1
      + expected - actual

      -4294967295
      +-1
      
      at Context.<anonymous> (test/UINT64_subtract-test.js:33:14)

  12) subtract method
       low bit-high bit
         should return 0:

      AssertionError [ERR_ASSERTION]: 4294836225 == -131071
      + expected - actual

      -4294836225
      +-131071
      
      at Context.<anonymous> (test/UINT64_subtract-test.js:45:14)

Cutting the trace short. Please let me know should you need additional information.