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/*
* Alpha optimized DSP utils
* Copyright (c) 2002 Falk Hueffner <falk@debian.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef LIBAVCODEC_ALPHA_ASM_H
#define LIBAVCODEC_ALPHA_ASM_H
#include <stdint.h>
#define AMASK_BWX (1 << 0)
#define AMASK_FIX (1 << 1)
#define AMASK_MVI (1 << 8)
static inline uint64_t BYTE_VEC(uint64_t x)
{
x |= x << 8;
x |= x << 16;
x |= x << 32;
return x;
}
static inline uint64_t WORD_VEC(uint64_t x)
{
x |= x << 16;
x |= x << 32;
return x;
}
static inline int32_t ldl(const void* p)
{
return *(const int32_t*) p;
}
static inline uint64_t ldq(const void* p)
{
return *(const uint64_t*) p;
}
/* FIXME ccc doesn't seem to get it? Use inline asm? */
static inline uint64_t ldq_u(const void* p)
{
return *(const uint64_t*) ((uintptr_t) p & ~7ul);
}
static inline void stl(uint32_t l, void* p)
{
*(uint32_t*) p = l;
}
static inline void stq(uint64_t l, void* p)
{
*(uint64_t*) p = l;
}
#ifdef __GNUC__
#define OPCODE1(name) \
static inline uint64_t name(uint64_t l) \
{ \
uint64_t r; \
asm (#name " %1, %0" : "=r" (r) : "r" (l)); \
return r; \
}
#define OPCODE2(name) \
static inline uint64_t name(uint64_t l1, uint64_t l2) \
{ \
uint64_t r; \
asm (#name " %1, %2, %0" : "=r" (r) : "r" (l1), "rI" (l2)); \
return r; \
}
/* We don't want gcc to move this around or combine it with another
rpcc, so mark it volatile. */
static inline uint64_t rpcc(void)
{
uint64_t r;
asm volatile ("rpcc %0" : "=r" (r));
return r;
}
static inline uint64_t uldq(const void* v)
{
struct foo {
unsigned long l;
} __attribute__((packed));
return ((const struct foo*) v)->l;
}
#elif defined(__DECC) /* Compaq "ccc" compiler */
#include <c_asm.h>
#define OPCODE1(name) \
static inline uint64_t name(uint64_t l) \
{ \
return asm (#name " %a0, %v0", l); \
}
#define OPCODE2(name) \
static inline uint64_t name(uint64_t l1, uint64_t l2) \
{ \
return asm (#name " %a0, %a1, %v0", l1, l2); \
}
static inline uint64_t rpcc(void)
{
return asm ("rpcc %v0");
}
static inline uint64_t uldq(const void* v)
{
return *(const __unaligned uint64_t *) v;
}
#endif
OPCODE1(amask);
OPCODE1(unpkbw);
OPCODE1(pkwb);
OPCODE2(extql);
OPCODE2(extqh);
OPCODE2(zap);
OPCODE2(cmpbge);
OPCODE2(minsw4);
OPCODE2(minuw4);
OPCODE2(minub8);
OPCODE2(maxsw4);
OPCODE2(maxuw4);
OPCODE2(perr);
#endif /* LIBAVCODEC_ALPHA_ASM_H */
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