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comparison python/testx86asm.py @ 191:6b2bec5653f1

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Added assembler testset
author Windel Bouwman
date Sun, 26 May 2013 15:28:07 +0200
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190:65dda7e7e8bd 191:6b2bec5653f1
1 #!/usr/bin/python
2
3 import unittest
4
5
6 class AssemblerTestCase(unittest.TestCase):
7 """
8 test methods start with 'test*'
9 Checks several assembly constructs agains their bytecodes
10 """
11 def setUp(self):
12 self.skipTest('not implemented yet')
13 self.assembler = Assembler('x86-64')
14
15 def tstAssembler(self):
16 """ Check all kind of assembler cases """
17 assert(assembler.shortjump(5) == [0xeb, 0x5])
18 assert(assembler.shortjump(-2) == [0xeb, 0xfc])
19 assert(assembler.shortjump(10,'GE') == [0x7d, 0xa])
20 assert(assembler.nearjump(5) == [0xe9, 0x5,0x0,0x0,0x0])
21 assert(assembler.nearjump(-2) == [0xe9, 0xf9, 0xff,0xff,0xff])
22 assert(assembler.nearjump(10,'LE') == [0x0f, 0x8e, 0xa,0x0,0x0,0x0])
23
24 def testCall(self):
25 assert(assembler.call('r10') == [0x41, 0xff, 0xd2])
26 assert(assembler.call('rcx') == [0xff, 0xd1])
27 def testXOR(self):
28 assert(assembler.xorreg64('rax', 'rax') == [0x48, 0x31, 0xc0])
29 assert(assembler.xorreg64('r9', 'r8') == [0x4d, 0x31, 0xc1])
30 assert(assembler.xorreg64('rbx', 'r11') == [0x4c, 0x31, 0xdb])
31
32 def testINC(self):
33 assert(assembler.increg64('r11') == [0x49, 0xff, 0xc3])
34 assert(assembler.increg64('rcx') == [0x48, 0xff, 0xc1])
35
36 def testPush(self):
37 assert(assembler.push('rbp') == [0x55])
38 assert(assembler.push('rbx') == [0x53])
39 assert(assembler.push('r12') == [0x41, 0x54])
40 def testPop(self):
41 assert(assembler.pop('rbx') == [0x5b])
42 assert(assembler.pop('rbp') == [0x5d])
43 assert(assembler.pop('r12') == [0x41, 0x5c])
44
45 def testAsmLoads(self):
46 # TODO constant add testcases
47 assert(assembler.mov('rbx', 'r14') == [0x4c, 0x89, 0xf3])
48 assert(assembler.mov('r12', 'r8') == [0x4d, 0x89, 0xc4])
49 assert(assembler.mov('rdi', 'rsp') == [0x48, 0x89, 0xe7])
50
51 def testAsmMemLoads(self):
52 assert(assembler.mov('rax', ['r8','r15',0x11]) == [0x4b,0x8b,0x44,0x38,0x11])
53 assert(assembler.mov('r13', ['rbp','rcx',0x23]) == [0x4c,0x8b,0x6c,0xd,0x23])
54
55 assert(assembler.mov('r9', ['rbp',-0x33]) == [0x4c,0x8b,0x4d,0xcd])
56 #assert(assembler.movreg64('rbx', ['rax']) == [0x48, 0x8b,0x18])
57
58 assert(assembler.mov('rax', [0xb000]) == [0x48,0x8b,0x4,0x25,0x0,0xb0,0x0,0x0])
59 assert(assembler.mov('r11', [0xa0]) == [0x4c,0x8b,0x1c,0x25,0xa0,0x0,0x0,0x0])
60
61 assert(assembler.mov('r11', ['RIP', 0xf]) == [0x4c,0x8b,0x1d,0x0f,0x0,0x0,0x0])
62
63 def testAsmMemStores(self):
64 assert(assembler.mov(['rbp', 0x13],'rbx') == [0x48,0x89,0x5d,0x13])
65 assert(assembler.mov(['r12', 0x12],'r9') == [0x4d,0x89,0x4c,0x24,0x12])
66 assert(assembler.mov(['rcx', 0x11],'r14') == [0x4c,0x89,0x71,0x11])
67
68
69 assert(assembler.mov([0xab], 'rbx') == [0x48,0x89,0x1c,0x25,0xab,0x0,0x0,0x0])
70 assert(assembler.mov([0xcd], 'r13') == [0x4c,0x89,0x2c,0x25,0xcd,0x0,0x0,0x0])
71
72 assert(assembler.mov(['RIP', 0xf], 'r9') == [0x4c,0x89,0x0d,0x0f,0x0,0x0,0x0])
73
74 def testAsmMOV8(self):
75 assert(assembler.mov(['rbp', -8], 'al') == [0x88, 0x45, 0xf8])
76 assert(assembler.mov(['r11', 9], 'cl') == [0x41, 0x88, 0x4b, 0x09])
77
78 assert(assembler.mov(['rbx'], 'al') == [0x88, 0x03])
79 assert(assembler.mov(['r11'], 'dl') == [0x41, 0x88, 0x13])
80
81 def testAsmLea(self):
82 assert(assembler.leareg64('r11', ['RIP', 0xf]) == [0x4c,0x8d,0x1d,0x0f,0x0,0x0,0x0])
83 assert(assembler.leareg64('rsi', ['RIP', 0x7]) == [0x48,0x8d,0x35,0x07,0x0,0x0,0x0])
84
85 assert(assembler.leareg64('rcx', ['rbp', -8]) == [0x48,0x8d,0x4d,0xf8])
86
87 def testAssemblerCMP(self):
88 assert(assembler.cmpreg64('rdi', 'r13') == [0x4c, 0x39, 0xef])
89 assert(assembler.cmpreg64('rbx', 'r14') == [0x4c, 0x39, 0xf3])
90 assert(assembler.cmpreg64('r12', 'r9') == [0x4d, 0x39, 0xcc])
91
92 assert(assembler.cmpreg64('rdi', 1) == [0x48, 0x83, 0xff, 0x01])
93 assert(assembler.cmpreg64('r11', 2) == [0x49, 0x83, 0xfb, 0x02])
94 def testAssemblerADD(self):
95 assert(assembler.addreg64('rbx', 'r13') == [0x4c, 0x01, 0xeb])
96 assert(assembler.addreg64('rax', 'rbx') == [0x48, 0x01, 0xd8])
97 assert(assembler.addreg64('r12', 'r13') == [0x4d, 0x01, 0xec])
98
99 assert(assembler.addreg64('rbx', 0x13) == [0x48, 0x83, 0xc3, 0x13])
100 assert(assembler.addreg64('r11', 0x1234567) == [0x49, 0x81, 0xc3, 0x67, 0x45,0x23,0x1])
101 assert(assembler.addreg64('rsp', 0x33) == [0x48, 0x83, 0xc4, 0x33])
102
103 def testAssemblerSUB(self):
104 assert(assembler.subreg64('rdx', 'r14') == [0x4c, 0x29, 0xf2])
105 assert(assembler.subreg64('r15', 'rbx') == [0x49, 0x29, 0xdf])
106 assert(assembler.subreg64('r8', 'r9') == [0x4d, 0x29, 0xc8])
107
108 assert(assembler.subreg64('rsp', 0x123456) == [0x48, 0x81, 0xec, 0x56,0x34,0x12,0x0])
109 assert(assembler.subreg64('rsp', 0x12) == [0x48, 0x83, 0xec, 0x12])
110
111 def testAssemblerIDIV(self):
112 assert(assembler.idivreg64('r11') == [0x49, 0xf7, 0xfb])
113 assert(assembler.idivreg64('rcx') == [0x48, 0xf7, 0xf9])
114 assert(assembler.idivreg64('rsp') == [0x48, 0xf7, 0xfc])
115
116 def testAssemblerIMUL(self):
117 assert(assembler.imulreg64_rax('rdi') == [0x48, 0xf7, 0xef])
118 assert(assembler.imulreg64_rax('r10') == [0x49, 0xf7, 0xea])
119 assert(assembler.imulreg64_rax('rdx') == [0x48, 0xf7, 0xea])
120
121 assert(assembler.imulreg64('r11', 'rdi') == [0x4c, 0xf, 0xaf, 0xdf])
122 assert(assembler.imulreg64('r12', 'rbx') == [0x4c, 0xf, 0xaf, 0xe3])
123 # nasm generates this machine code: 0x4d, 0x6b, 0xff, 0xee
124 # This also works: 4D0FAFFE (another variant?? )
125 assert(assembler.imulreg64('r15', 'r14') == [0x4d, 0x0f, 0xaf, 0xfe])
126
127
128 if __name__ == '__main__':
129 unittest.main()
130