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+/*
+ * Alpha optimized DSP utils
+ * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ALPHA_ASM_H
+#define AVCODEC_ALPHA_ASM_H
+
+#include <inttypes.h>
+
+#include "libavutil/common.h"
+
+#if AV_GCC_VERSION_AT_LEAST(2,96)
+# define likely(x) __builtin_expect((x) != 0, 1)
+# define unlikely(x) __builtin_expect((x) != 0, 0)
+#else
+# define likely(x) (x)
+# define unlikely(x) (x)
+#endif
+
+#define AMASK_BWX (1 << 0)
+#define AMASK_FIX (1 << 1)
+#define AMASK_CIX (1 << 2)
+#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;
+}
+
+#define sextw(x) ((int16_t) (x))
+
+#ifdef __GNUC__
+#define ldq(p) \
+ (((const union { \
+ uint64_t __l; \
+ __typeof__(*(p)) __s[sizeof (uint64_t) / sizeof *(p)]; \
+ } *) (p))->__l)
+#define ldl(p) \
+ (((const union { \
+ int32_t __l; \
+ __typeof__(*(p)) __s[sizeof (int32_t) / sizeof *(p)]; \
+ } *) (p))->__l)
+#define stq(l, p) \
+ do { \
+ (((union { \
+ uint64_t __l; \
+ __typeof__(*(p)) __s[sizeof (uint64_t) / sizeof *(p)]; \
+ } *) (p))->__l) = l; \
+ } while (0)
+#define stl(l, p) \
+ do { \
+ (((union { \
+ int32_t __l; \
+ __typeof__(*(p)) __s[sizeof (int32_t) / sizeof *(p)]; \
+ } *) (p))->__l) = l; \
+ } while (0)
+struct unaligned_long { uint64_t l; } __attribute__((packed));
+#define ldq_u(p) (*(const uint64_t *) (((uint64_t) (p)) & ~7ul))
+#define uldq(a) (((const struct unaligned_long *) (a))->l)
+
+#if AV_GCC_VERSION_AT_LEAST(3,3)
+#define prefetch(p) __builtin_prefetch((p), 0, 1)
+#define prefetch_en(p) __builtin_prefetch((p), 0, 0)
+#define prefetch_m(p) __builtin_prefetch((p), 1, 1)
+#define prefetch_men(p) __builtin_prefetch((p), 1, 0)
+#define cmpbge __builtin_alpha_cmpbge
+/* Avoid warnings. */
+#define extql(a, b) __builtin_alpha_extql(a, (uint64_t) (b))
+#define extwl(a, b) __builtin_alpha_extwl(a, (uint64_t) (b))
+#define extqh(a, b) __builtin_alpha_extqh(a, (uint64_t) (b))
+#define zap __builtin_alpha_zap
+#define zapnot __builtin_alpha_zapnot
+#define amask __builtin_alpha_amask
+#define implver __builtin_alpha_implver
+#define rpcc __builtin_alpha_rpcc
+#else
+#define prefetch(p) __asm__ volatile("ldl $31,%0" : : "m"(*(const char *) (p)) : "memory")
+#define prefetch_en(p) __asm__ volatile("ldq $31,%0" : : "m"(*(const char *) (p)) : "memory")
+#define prefetch_m(p) __asm__ volatile("lds $f31,%0" : : "m"(*(const char *) (p)) : "memory")
+#define prefetch_men(p) __asm__ volatile("ldt $f31,%0" : : "m"(*(const char *) (p)) : "memory")
+#define cmpbge(a, b) ({ uint64_t __r; __asm__ ("cmpbge %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define extql(a, b) ({ uint64_t __r; __asm__ ("extql %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define extwl(a, b) ({ uint64_t __r; __asm__ ("extwl %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define extqh(a, b) ({ uint64_t __r; __asm__ ("extqh %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define zap(a, b) ({ uint64_t __r; __asm__ ("zap %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define zapnot(a, b) ({ uint64_t __r; __asm__ ("zapnot %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
+#define amask(a) ({ uint64_t __r; __asm__ ("amask %1,%0" : "=r" (__r) : "rI" (a)); __r; })
+#define implver() ({ uint64_t __r; __asm__ ("implver %0" : "=r" (__r)); __r; })
+#define rpcc() ({ uint64_t __r; __asm__ volatile ("rpcc %0" : "=r" (__r)); __r; })
+#endif
+#define wh64(p) __asm__ volatile("wh64 (%0)" : : "r"(p) : "memory")
+
+#if AV_GCC_VERSION_AT_LEAST(3,3) && defined(__alpha_max__)
+#define minub8 __builtin_alpha_minub8
+#define minsb8 __builtin_alpha_minsb8
+#define minuw4 __builtin_alpha_minuw4
+#define minsw4 __builtin_alpha_minsw4
+#define maxub8 __builtin_alpha_maxub8
+#define maxsb8 __builtin_alpha_maxsb8
+#define maxuw4 __builtin_alpha_maxuw4
+#define maxsw4 __builtin_alpha_maxsw4
+#define perr __builtin_alpha_perr
+#define pklb __builtin_alpha_pklb
+#define pkwb __builtin_alpha_pkwb
+#define unpkbl __builtin_alpha_unpkbl
+#define unpkbw __builtin_alpha_unpkbw
+#else
+#define minub8(a, b) ({ uint64_t __r; __asm__ (".arch ev6; minub8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define minsb8(a, b) ({ uint64_t __r; __asm__ (".arch ev6; minsb8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define minuw4(a, b) ({ uint64_t __r; __asm__ (".arch ev6; minuw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define minsw4(a, b) ({ uint64_t __r; __asm__ (".arch ev6; minsw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define maxub8(a, b) ({ uint64_t __r; __asm__ (".arch ev6; maxub8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define maxsb8(a, b) ({ uint64_t __r; __asm__ (".arch ev6; maxsb8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define maxuw4(a, b) ({ uint64_t __r; __asm__ (".arch ev6; maxuw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define maxsw4(a, b) ({ uint64_t __r; __asm__ (".arch ev6; maxsw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
+#define perr(a, b) ({ uint64_t __r; __asm__ (".arch ev6; perr %r1,%r2,%0" : "=r" (__r) : "%rJ" (a), "rJ" (b)); __r; })
+#define pklb(a) ({ uint64_t __r; __asm__ (".arch ev6; pklb %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
+#define pkwb(a) ({ uint64_t __r; __asm__ (".arch ev6; pkwb %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
+#define unpkbl(a) ({ uint64_t __r; __asm__ (".arch ev6; unpkbl %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
+#define unpkbw(a) ({ uint64_t __r; __asm__ (".arch ev6; unpkbw %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
+#endif
+
+#elif defined(__DECC) /* Digital/Compaq/hp "ccc" compiler */
+
+#include <c_asm.h>
+#define ldq(p) (*(const uint64_t *) (p))
+#define ldl(p) (*(const int32_t *) (p))
+#define stq(l, p) do { *(uint64_t *) (p) = (l); } while (0)
+#define stl(l, p) do { *(int32_t *) (p) = (l); } while (0)
+#define ldq_u(a) asm ("ldq_u %v0,0(%a0)", a)
+#define uldq(a) (*(const __unaligned uint64_t *) (a))
+#define cmpbge(a, b) asm ("cmpbge %a0,%a1,%v0", a, b)
+#define extql(a, b) asm ("extql %a0,%a1,%v0", a, b)
+#define extwl(a, b) asm ("extwl %a0,%a1,%v0", a, b)
+#define extqh(a, b) asm ("extqh %a0,%a1,%v0", a, b)
+#define zap(a, b) asm ("zap %a0,%a1,%v0", a, b)
+#define zapnot(a, b) asm ("zapnot %a0,%a1,%v0", a, b)
+#define amask(a) asm ("amask %a0,%v0", a)
+#define implver() asm ("implver %v0")
+#define rpcc() asm ("rpcc %v0")
+#define minub8(a, b) asm ("minub8 %a0,%a1,%v0", a, b)
+#define minsb8(a, b) asm ("minsb8 %a0,%a1,%v0", a, b)
+#define minuw4(a, b) asm ("minuw4 %a0,%a1,%v0", a, b)
+#define minsw4(a, b) asm ("minsw4 %a0,%a1,%v0", a, b)
+#define maxub8(a, b) asm ("maxub8 %a0,%a1,%v0", a, b)
+#define maxsb8(a, b) asm ("maxsb8 %a0,%a1,%v0", a, b)
+#define maxuw4(a, b) asm ("maxuw4 %a0,%a1,%v0", a, b)
+#define maxsw4(a, b) asm ("maxsw4 %a0,%a1,%v0", a, b)
+#define perr(a, b) asm ("perr %a0,%a1,%v0", a, b)
+#define pklb(a) asm ("pklb %a0,%v0", a)
+#define pkwb(a) asm ("pkwb %a0,%v0", a)
+#define unpkbl(a) asm ("unpkbl %a0,%v0", a)
+#define unpkbw(a) asm ("unpkbw %a0,%v0", a)
+#define wh64(a) asm ("wh64 %a0", a)
+
+#else
+#error "Unknown compiler!"
+#endif
+
+#endif /* AVCODEC_ALPHA_ASM_H */
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