1
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <assert.h>
5 #include "tests/malloc.h"
6
7 typedef unsigned char UChar;
8 typedef unsigned int UInt;
9 typedef unsigned long int UWord;
10 typedef unsigned long long int ULong;
11
12
13 typedef struct { UChar cs[40]; } Block;
14
showBlock(char * msg,Block * b)15 void showBlock ( char* msg, Block* b )
16 {
17 int i;
18 printf(" %s ", msg);
19 for (i = 0; i < 40; i++)
20 printf("%02x", (UInt)b->cs[i]);
21 printf("\n");
22 }
23
randUChar(void)24 UChar randUChar ( void )
25 {
26 static UInt seed = 80021;
27 seed = 1103515245 * seed + 12345;
28 return (seed >> 17) & 0xFF;
29 }
30
randBlock(Block * b)31 void randBlock ( Block* b )
32 {
33 int i;
34 UChar* p = (UChar*)b;
35 for (i = 0; i < sizeof(Block); i++)
36 p[i] = randUChar();
37 }
38
39 /* Generate a function test_NAME, that tests the given insn.
40 The insn may only mention (%eax) and esi. */
41
42 #define GEN_test_Monly(_name, _mem_form) \
43 \
44 __attribute__ ((noinline)) static void test_##_name ( void ) \
45 { \
46 Block* b = memalign32(sizeof(Block)); \
47 randBlock(b); \
48 printf("%s\n", #_name); \
49 showBlock("before", b); \
50 __asm__ __volatile__( \
51 "leal 16(%0),%%eax" "\n\t" \
52 "movl 24(%0),%%esi" "\n\t" \
53 _mem_form "\n\t" \
54 "movl %%esi, 32(%0)" "\n\t" \
55 : /*OUT*/ \
56 : /*IN*/"r"(b) \
57 : /*TRASH*/"esi","eax","memory","cc" \
58 ); \
59 showBlock("after ", b); \
60 printf("\n"); \
61 free(b); \
62 }
63
64 GEN_test_Monly( MOVBE_RtoM_32, "movbel %%esi,1(%%eax)")
65 GEN_test_Monly( MOVBE_RtoM_16, "movbew %%si,1(%%eax)")
66
67 GEN_test_Monly( MOVBE_MtoR_32, "movbel 1(%%eax), %%esi")
68 GEN_test_Monly( MOVBE_MtoR_16, "movbew 1(%%eax), %%si")
69
main(void)70 int main ( void )
71 {
72 test_MOVBE_RtoM_32();
73 test_MOVBE_RtoM_16();
74 test_MOVBE_MtoR_32();
75 test_MOVBE_MtoR_16();
76 return 0;
77 }
78