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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
#include <stdio.h>
#include <stdlib.h>
/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
#define __COPY(RA, RB, L) \
(0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
#define COPY(RA, RB, L) \
.long __COPY((RA), (RB), (L))
static inline void copy(void *i)
{
asm volatile(str(COPY(0, %0, 0))";"
:
: "b" (i)
: "memory"
);
}
static inline void copy_first(void *i)
{
asm volatile(str(COPY(0, %0, 1))";"
:
: "b" (i)
: "memory"
);
}
/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
#define __PASTE(RA, RB, L, RC) \
(0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
#define PASTE(RA, RB, L, RC) \
.long __PASTE((RA), (RB), (L), (RC))
static inline int paste(void *i)
{
int cr;
asm volatile(str(PASTE(0, %1, 0, 0))";"
"mfcr %0;"
: "=r" (cr)
: "b" (i)
: "memory"
);
return cr;
}
static inline int paste_last(void *i)
{
int cr;
asm volatile(str(PASTE(0, %1, 1, 1))";"
"mfcr %0;"
: "=r" (cr)
: "b" (i)
: "memory"
);
return cr;
}
#define PPC_INST_COPY __COPY(0, 0, 0)
#define PPC_INST_COPY_FIRST __COPY(0, 0, 1)
#define PPC_INST_PASTE __PASTE(0, 0, 0, 0)
#define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1)
#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
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