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
|
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "sys.h"
#include "crisutils.h"
#define N 8
#define W 4
#define B 2
#define R 1
extern inline int cris_swap(const int mode, int x)
{
switch (mode)
{
case N: asm ("swapn\t%0\n" : "+r" (x) : "0" (x)); break;
case W: asm ("swapw\t%0\n" : "+r" (x) : "0" (x)); break;
case B: asm ("swapb\t%0\n" : "+r" (x) : "0" (x)); break;
case R: asm ("swapr\t%0\n" : "+r" (x) : "0" (x)); break;
case B|R: asm ("swapbr\t%0\n" : "+r" (x) : "0" (x)); break;
case W|R: asm ("swapwr\t%0\n" : "+r" (x) : "0" (x)); break;
case W|B: asm ("swapwb\t%0\n" : "+r" (x) : "0" (x)); break;
case W|B|R: asm ("swapwbr\t%0\n" : "+r" (x) : "0" (x)); break;
case N|R: asm ("swapnr\t%0\n" : "+r" (x) : "0" (x)); break;
case N|B: asm ("swapnb\t%0\n" : "+r" (x) : "0" (x)); break;
case N|B|R: asm ("swapnbr\t%0\n" : "+r" (x) : "0" (x)); break;
case N|W: asm ("swapnw\t%0\n" : "+r" (x) : "0" (x)); break;
default:
err();
break;
}
return x;
}
/* Made this a macro to be able to pick up the location of the errors. */
#define verify_swap(mode, val, expected, n, z) \
do { \
int r; \
cris_tst_cc_init(); \
r = cris_swap(mode, val); \
cris_tst_mov_cc(n, z); \
if (r != expected) \
err(); \
} while(0);
void check_swap(void)
{
/* Some of these numbers are borrowed from GDB's cris sim
testsuite. */
if (cris_swap(N, 0) != 0xffffffff)
err();
if (cris_swap(W, 0x12345678) != 0x56781234)
err();
if (cris_swap(B, 0x12345678) != 0x34127856)
err();
verify_swap(R, 0x78134452, 0x1ec8224a, 0, 0);
verify_swap(B, 0x78134452, 0x13785244, 0, 0);
verify_swap(B|R, 0x78134452, 0xc81e4a22, 1, 0);
verify_swap(W, 0x78134452, 0x44527813, 0, 0);
verify_swap(W|R, 0x78134452, 0x224a1ec8, 0, 0);
verify_swap(W|B|R, 0x78134452, 0x4a22c81e, 0, 0);
verify_swap(N, 0x78134452, 0x87ecbbad, 1, 0);
verify_swap(N|R, 0x78134452, 0xe137ddb5, 1, 0);
verify_swap(N|B, 0x78134452, 0xec87adbb, 1, 0);
verify_swap(N|B|R, 0x78134452, 0x37e1b5dd, 0, 0);
verify_swap(N|W, 0x78134452, 0xbbad87ec, 1, 0);
verify_swap(N|B|R, 0xffffffff, 0, 0, 1);
}
int main(void)
{
check_swap();
pass();
}
|
