test-i386.c
5.56 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
#define stringify(s) tostring(s)
#define tostring(s) #s
#define CC_C 0x0001
#define CC_P 0x0004
#define CC_A 0x0010
#define CC_Z 0x0040
#define CC_S 0x0080
#define CC_O 0x0800
/* XXX: currently no A flag */
#define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O)
#define __init_call __attribute__ ((unused,__section__ (".initcall.init")))
static void *call_start __init_call = NULL;
#define OP add
#include "test-i386.h"
#define OP sub
#include "test-i386.h"
#define OP xor
#include "test-i386.h"
#define OP and
#include "test-i386.h"
#define OP or
#include "test-i386.h"
#define OP cmp
#include "test-i386.h"
#define OP adc
#define OP_CC
#include "test-i386.h"
#define OP sbb
#define OP_CC
#include "test-i386.h"
#define OP inc
#define OP_CC
#define OP1
#include "test-i386.h"
#define OP dec
#define OP_CC
#define OP1
#include "test-i386.h"
#define OP neg
#define OP_CC
#define OP1
#include "test-i386.h"
#define OP not
#define OP_CC
#define OP1
#include "test-i386.h"
#define OP shl
#include "test-i386-shift.h"
#define OP shr
#include "test-i386-shift.h"
#define OP sar
#include "test-i386-shift.h"
#define OP rol
#include "test-i386-shift.h"
#define OP ror
#include "test-i386-shift.h"
#define OP rcr
#define OP_CC
#include "test-i386-shift.h"
#define OP rcl
#define OP_CC
#include "test-i386-shift.h"
/* lea test (modrm support) */
#define TEST_LEA(STR)\
{\
asm("leal " STR ", %0"\
: "=r" (res)\
: "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
printf("lea %s = %08x\n", STR, res);\
}
#define TEST_LEA16(STR)\
{\
asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\
: "=wq" (res)\
: "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
printf("lea %s = %08x\n", STR, res);\
}
void test_lea(void)
{
int eax, ebx, ecx, edx, esi, edi, res;
eax = 0x0001;
ebx = 0x0002;
ecx = 0x0004;
edx = 0x0008;
esi = 0x0010;
edi = 0x0020;
TEST_LEA("0x4000");
TEST_LEA("(%%eax)");
TEST_LEA("(%%ebx)");
TEST_LEA("(%%ecx)");
TEST_LEA("(%%edx)");
TEST_LEA("(%%esi)");
TEST_LEA("(%%edi)");
TEST_LEA("0x40(%%eax)");
TEST_LEA("0x40(%%ebx)");
TEST_LEA("0x40(%%ecx)");
TEST_LEA("0x40(%%edx)");
TEST_LEA("0x40(%%esi)");
TEST_LEA("0x40(%%edi)");
TEST_LEA("0x4000(%%eax)");
TEST_LEA("0x4000(%%ebx)");
TEST_LEA("0x4000(%%ecx)");
TEST_LEA("0x4000(%%edx)");
TEST_LEA("0x4000(%%esi)");
TEST_LEA("0x4000(%%edi)");
TEST_LEA("(%%eax, %%ecx)");
TEST_LEA("(%%ebx, %%edx)");
TEST_LEA("(%%ecx, %%ecx)");
TEST_LEA("(%%edx, %%ecx)");
TEST_LEA("(%%esi, %%ecx)");
TEST_LEA("(%%edi, %%ecx)");
TEST_LEA("0x40(%%eax, %%ecx)");
TEST_LEA("0x4000(%%ebx, %%edx)");
TEST_LEA("(%%ecx, %%ecx, 2)");
TEST_LEA("(%%edx, %%ecx, 4)");
TEST_LEA("(%%esi, %%ecx, 8)");
TEST_LEA("(,%%eax, 2)");
TEST_LEA("(,%%ebx, 4)");
TEST_LEA("(,%%ecx, 8)");
TEST_LEA("0x40(,%%eax, 2)");
TEST_LEA("0x40(,%%ebx, 4)");
TEST_LEA("0x40(,%%ecx, 8)");
TEST_LEA("-10(%%ecx, %%ecx, 2)");
TEST_LEA("-10(%%edx, %%ecx, 4)");
TEST_LEA("-10(%%esi, %%ecx, 8)");
TEST_LEA("0x4000(%%ecx, %%ecx, 2)");
TEST_LEA("0x4000(%%edx, %%ecx, 4)");
TEST_LEA("0x4000(%%esi, %%ecx, 8)");
/* limited 16 bit addressing test */
TEST_LEA16("0x4000");
TEST_LEA16("(%%bx)");
TEST_LEA16("(%%si)");
TEST_LEA16("(%%di)");
TEST_LEA16("0x40(%%bx)");
TEST_LEA16("0x40(%%si)");
TEST_LEA16("0x40(%%di)");
TEST_LEA16("0x4000(%%bx)");
TEST_LEA16("0x4000(%%si)");
TEST_LEA16("(%%bx,%%si)");
TEST_LEA16("(%%bx,%%di)");
TEST_LEA16("0x40(%%bx,%%si)");
TEST_LEA16("0x40(%%bx,%%di)");
TEST_LEA16("0x4000(%%bx,%%si)");
TEST_LEA16("0x4000(%%bx,%%di)");
}
#define TEST_JCC(JCC, v1, v2)\
{\
asm("movl $1, %0\n\t"\
"cmpl %2, %1\n\t"\
JCC " 1f\n\t"\
"movl $0, %0\n\t"\
"1:\n\t"\
: "=r" (res)\
: "r" (v1), "r" (v2));\
printf("%-10s %d\n", JCC, res);\
}
/* various jump tests */
void test_jcc(void)
{
int res;
TEST_JCC("jne", 1, 1);
TEST_JCC("jne", 1, 0);
TEST_JCC("je", 1, 1);
TEST_JCC("je", 1, 0);
TEST_JCC("jl", 1, 1);
TEST_JCC("jl", 1, 0);
TEST_JCC("jl", 1, -1);
TEST_JCC("jle", 1, 1);
TEST_JCC("jle", 1, 0);
TEST_JCC("jle", 1, -1);
TEST_JCC("jge", 1, 1);
TEST_JCC("jge", 1, 0);
TEST_JCC("jge", -1, 1);
TEST_JCC("jg", 1, 1);
TEST_JCC("jg", 1, 0);
TEST_JCC("jg", 1, -1);
TEST_JCC("jb", 1, 1);
TEST_JCC("jb", 1, 0);
TEST_JCC("jb", 1, -1);
TEST_JCC("jbe", 1, 1);
TEST_JCC("jbe", 1, 0);
TEST_JCC("jbe", 1, -1);
TEST_JCC("jae", 1, 1);
TEST_JCC("jae", 1, 0);
TEST_JCC("jae", 1, -1);
TEST_JCC("ja", 1, 1);
TEST_JCC("ja", 1, 0);
TEST_JCC("ja", 1, -1);
TEST_JCC("jp", 1, 1);
TEST_JCC("jp", 1, 0);
TEST_JCC("jnp", 1, 1);
TEST_JCC("jnp", 1, 0);
TEST_JCC("jo", 0x7fffffff, 0);
TEST_JCC("jo", 0x7fffffff, -1);
TEST_JCC("jno", 0x7fffffff, 0);
TEST_JCC("jno", 0x7fffffff, -1);
TEST_JCC("js", 0, 1);
TEST_JCC("js", 0, -1);
TEST_JCC("js", 0, 0);
TEST_JCC("jns", 0, 1);
TEST_JCC("jns", 0, -1);
TEST_JCC("jns", 0, 0);
}
static void *call_end __init_call = NULL;
int main(int argc, char **argv)
{
void **ptr;
void (*func)(void);
ptr = &call_start + 1;
while (*ptr != NULL) {
func = *ptr++;
func();
}
test_lea();
test_jcc();
return 0;
}