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1 #!/usr/bin/python
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2
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3 import unittest
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292
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4 from testasm import AsmTestCaseBase
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5
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6
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292
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7 class AssemblerTestCase(AsmTestCaseBase):
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8 """
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191
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9 test methods start with 'test*'
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10 Checks several assembly constructs agains their bytecodes
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292
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11 """
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12 def setUp(self):
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13 self.skipTest('not implemented yet')
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14 self.assembler = Assembler('x86-64')
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15 a = Assembler()
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16
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17 @unittest.skip
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18 def testX86(self):
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19 self.feed('mov rax, rbx') # ; 0x48, 0x89, 0xd8
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20 self.feed('xor rcx, rbx') # ; 0x48, 0x31, 0xd9
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21 self.feed('inc rcx') # ; 0x48 0xff 0xc1
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22 self.check('48 89 d8 48 31 d9 48 ff c1')
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23
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24 def tstAssembler(self):
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191
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25 """ Check all kind of assembler cases """
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26 assert(assembler.shortjump(5) == [0xeb, 0x5])
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27 assert(assembler.shortjump(-2) == [0xeb, 0xfc])
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28 assert(assembler.shortjump(10,'GE') == [0x7d, 0xa])
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29 assert(assembler.nearjump(5) == [0xe9, 0x5,0x0,0x0,0x0])
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30 assert(assembler.nearjump(-2) == [0xe9, 0xf9, 0xff,0xff,0xff])
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31 assert(assembler.nearjump(10,'LE') == [0x0f, 0x8e, 0xa,0x0,0x0,0x0])
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32
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33 def testCall(self):
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34 self.feed('call r10')
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35 self.check('')
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36 self.feed('call rcx')
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37
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38 # assert(assembler.call('r10') == [0x41, 0xff, 0xd2])
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39 # assert(assembler.call('rcx') == [0xff, 0xd1])
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287
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40
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41 def testXOR(self):
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42 self.feed('xor rax, rax')
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43 self.feed('xor r9, r8')
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44 self.feed('xor rbx, r11')
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45 self.check('48 31 c0 4d 31 c1 4c 31 db')
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46
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47 def testINC(self):
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48 self.feed('inc r11')
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49 self.feed('inc rcx')
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50 self.check('49 ff c3 48 ff c1')
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51
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52 def testPush(self):
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53 self.feed('push rbp')
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54 self.feed('push rbx')
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55 self.feed('push r12')
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56 self.check('55 53 41 54')
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57
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58 def testPop(self):
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59 self.feed('pop rbx')
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60 self.feed('pop rbp')
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61 self.feed('pop r12')
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62 self.check('5b 5d 41 5c')
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63
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64 def testAsmLoads(self):
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65 # TODO constant add testcases
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66 assert(assembler.mov('rbx', 'r14') == [0x4c, 0x89, 0xf3])
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67 assert(assembler.mov('r12', 'r8') == [0x4d, 0x89, 0xc4])
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68 assert(assembler.mov('rdi', 'rsp') == [0x48, 0x89, 0xe7])
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69
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70 def testAsmMemLoads(self):
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71 assert(assembler.mov('rax', ['r8','r15',0x11]) == [0x4b,0x8b,0x44,0x38,0x11])
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72 assert(assembler.mov('r13', ['rbp','rcx',0x23]) == [0x4c,0x8b,0x6c,0xd,0x23])
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73
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74 assert(assembler.mov('r9', ['rbp',-0x33]) == [0x4c,0x8b,0x4d,0xcd])
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75 #assert(assembler.movreg64('rbx', ['rax']) == [0x48, 0x8b,0x18])
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76
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77 assert(assembler.mov('rax', [0xb000]) == [0x48,0x8b,0x4,0x25,0x0,0xb0,0x0,0x0])
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78 assert(assembler.mov('r11', [0xa0]) == [0x4c,0x8b,0x1c,0x25,0xa0,0x0,0x0,0x0])
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79
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80 assert(assembler.mov('r11', ['RIP', 0xf]) == [0x4c,0x8b,0x1d,0x0f,0x0,0x0,0x0])
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81
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82 def testAsmMemStores(self):
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83 assert(assembler.mov(['rbp', 0x13],'rbx') == [0x48,0x89,0x5d,0x13])
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84 assert(assembler.mov(['r12', 0x12],'r9') == [0x4d,0x89,0x4c,0x24,0x12])
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85 assert(assembler.mov(['rcx', 0x11],'r14') == [0x4c,0x89,0x71,0x11])
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86
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87
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88 assert(assembler.mov([0xab], 'rbx') == [0x48,0x89,0x1c,0x25,0xab,0x0,0x0,0x0])
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89 assert(assembler.mov([0xcd], 'r13') == [0x4c,0x89,0x2c,0x25,0xcd,0x0,0x0,0x0])
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90
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91 assert(assembler.mov(['RIP', 0xf], 'r9') == [0x4c,0x89,0x0d,0x0f,0x0,0x0,0x0])
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92
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93 def testAsmMOV8(self):
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94 assert(assembler.mov(['rbp', -8], 'al') == [0x88, 0x45, 0xf8])
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95 assert(assembler.mov(['r11', 9], 'cl') == [0x41, 0x88, 0x4b, 0x09])
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96
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97 assert(assembler.mov(['rbx'], 'al') == [0x88, 0x03])
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98 assert(assembler.mov(['r11'], 'dl') == [0x41, 0x88, 0x13])
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99
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100 def testAsmLea(self):
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101 assert(assembler.leareg64('r11', ['RIP', 0xf]) == [0x4c,0x8d,0x1d,0x0f,0x0,0x0,0x0])
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102 assert(assembler.leareg64('rsi', ['RIP', 0x7]) == [0x48,0x8d,0x35,0x07,0x0,0x0,0x0])
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103
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104 assert(assembler.leareg64('rcx', ['rbp', -8]) == [0x48,0x8d,0x4d,0xf8])
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105
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106 def testAssemblerCMP(self):
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107 assert(assembler.cmpreg64('rdi', 'r13') == [0x4c, 0x39, 0xef])
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108 assert(assembler.cmpreg64('rbx', 'r14') == [0x4c, 0x39, 0xf3])
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109 assert(assembler.cmpreg64('r12', 'r9') == [0x4d, 0x39, 0xcc])
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110
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111 assert(assembler.cmpreg64('rdi', 1) == [0x48, 0x83, 0xff, 0x01])
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112 assert(assembler.cmpreg64('r11', 2) == [0x49, 0x83, 0xfb, 0x02])
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113
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114 def testAssemblerADD(self):
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115 assert(assembler.addreg64('rbx', 'r13') == [0x4c, 0x01, 0xeb])
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116 assert(assembler.addreg64('rax', 'rbx') == [0x48, 0x01, 0xd8])
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117 assert(assembler.addreg64('r12', 'r13') == [0x4d, 0x01, 0xec])
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118
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119 assert(assembler.addreg64('rbx', 0x13) == [0x48, 0x83, 0xc3, 0x13])
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120 assert(assembler.addreg64('r11', 0x1234567) == [0x49, 0x81, 0xc3, 0x67, 0x45,0x23,0x1])
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121 assert(assembler.addreg64('rsp', 0x33) == [0x48, 0x83, 0xc4, 0x33])
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122
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123 def testAssemblerSUB(self):
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124 assert(assembler.subreg64('rdx', 'r14') == [0x4c, 0x29, 0xf2])
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125 assert(assembler.subreg64('r15', 'rbx') == [0x49, 0x29, 0xdf])
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126 assert(assembler.subreg64('r8', 'r9') == [0x4d, 0x29, 0xc8])
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127
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128 assert(assembler.subreg64('rsp', 0x123456) == [0x48, 0x81, 0xec, 0x56,0x34,0x12,0x0])
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129 assert(assembler.subreg64('rsp', 0x12) == [0x48, 0x83, 0xec, 0x12])
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130
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131 def testAssemblerIDIV(self):
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132 assert(assembler.idivreg64('r11') == [0x49, 0xf7, 0xfb])
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133 assert(assembler.idivreg64('rcx') == [0x48, 0xf7, 0xf9])
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134 assert(assembler.idivreg64('rsp') == [0x48, 0xf7, 0xfc])
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135
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136 def testAssemblerIMUL(self):
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137 assert(assembler.imulreg64_rax('rdi') == [0x48, 0xf7, 0xef])
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138 assert(assembler.imulreg64_rax('r10') == [0x49, 0xf7, 0xea])
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139 assert(assembler.imulreg64_rax('rdx') == [0x48, 0xf7, 0xea])
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140
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141 assert(assembler.imulreg64('r11', 'rdi') == [0x4c, 0xf, 0xaf, 0xdf])
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142 assert(assembler.imulreg64('r12', 'rbx') == [0x4c, 0xf, 0xaf, 0xe3])
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143 # nasm generates this machine code: 0x4d, 0x6b, 0xff, 0xee
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144 # This also works: 4D0FAFFE (another variant?? )
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145 assert(assembler.imulreg64('r15', 'r14') == [0x4d, 0x0f, 0xaf, 0xfe])
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146
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147
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148 if __name__ == '__main__':
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149 unittest.main()
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150
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