1#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
2#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
3
4#include <stdio.h>
5#include <stdlib.h>
6
7/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
8#define __COPY(RA, RB, L) \
9	(0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
10#define COPY(RA, RB, L) \
11	.long __COPY((RA), (RB), (L))
12
13static inline void copy(void *i)
14{
15	asm volatile(str(COPY(0, %0, 0))";"
16			:
17			: "b" (i)
18			: "memory"
19		    );
20}
21
22static inline void copy_first(void *i)
23{
24	asm volatile(str(COPY(0, %0, 1))";"
25			:
26			: "b" (i)
27			: "memory"
28		    );
29}
30
31/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
32#define __PASTE(RA, RB, L, RC) \
33	(0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
34#define PASTE(RA, RB, L, RC) \
35	.long __PASTE((RA), (RB), (L), (RC))
36
37static inline int paste(void *i)
38{
39	int cr;
40
41	asm volatile(str(PASTE(0, %1, 0, 0))";"
42			"mfcr %0;"
43			: "=r" (cr)
44			: "b" (i)
45			: "memory"
46		    );
47	return cr;
48}
49
50static inline int paste_last(void *i)
51{
52	int cr;
53
54	asm volatile(str(PASTE(0, %1, 1, 1))";"
55			"mfcr %0;"
56			: "=r" (cr)
57			: "b" (i)
58			: "memory"
59		    );
60	return cr;
61}
62
63#define PPC_INST_COPY                  __COPY(0, 0, 0)
64#define PPC_INST_COPY_FIRST            __COPY(0, 0, 1)
65#define PPC_INST_PASTE                 __PASTE(0, 0, 0, 0)
66#define PPC_INST_PASTE_LAST            __PASTE(0, 0, 1, 1)
67
68#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
69