c语言位运算测试题及答案 [原创] 位运算和bit位操作程序题目答案 -- 谭浩强C语言习题...

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50. usDest = usDest | usTemp;

51. return usDest;

52.}

53.

54.int test_12_1()

55.{

56. unsigned short usRet = 0;

57. usRet = getbits(0x83BD, 4, 7);

58.

59. if (usRet == 0xB)

60. {

61. printf("Test_12_1 Passed! \r\n");

62. return 0;

63. }

64.

65. return 1;

66.}

67.

68.int test_12_2()

69.{

70. int ite = 0, iRet = 0;

71. unsigned short usDest = 0, usSrc = 0xFFFF, usMask = 0;

72.

73. for(ite = 0; ite < 16; ite += 2)

74. {

75. usMask = 1 << ite;

76. usDest = usDest | (usSrc & usMask);

77. }

78.

79. if (usDest == 0x5555)

80. {

81. printf("Test_12_2 Passed! \r\n");

82. return 0;

83. }

84.

85. return 1;

86.}

87.

88.int test_12_4()

89.{

90. unsigned short usDest1 = 0, usDest2 = 0, usSrc = 0xFFF7;

91.

92. usDest1 = move(0xFFF7, 4);

93. usDest2 = move(0xFFF7, -4);

94.

95. if (usDest1 == 0x7FFF && usDest2 == 0xFF7F)

96. {

97. printf("Test_12_4 Passed! \r\n");

98. return 0;

99. }

100. return 1;

101.}

102.

103.int test_12_5()

104.{

105. short sDest = 0, sSrc = -10;