asm.h 7.47 KB
Newer Older
1 2 3 4
/*
 * Alpha optimized DSP utils
 * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
 *
5 6 7 8
 * 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.
9
 *
10
 * This library is distributed in the hope that it will be useful,
11
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
14
 *
15 16 17
 * 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
18 19 20 21 22
 */

#ifndef LIBAVCODEC_ALPHA_ASM_H
#define LIBAVCODEC_ALPHA_ASM_H

Falk Hüffner's avatar
Falk Hüffner committed
23
#include <inttypes.h>
24

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
#if defined __GNUC__
# define GNUC_PREREQ(maj, min) \
        ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define GNUC_PREREQ(maj, min) 0
#endif

#if GNUC_PREREQ(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

40 41
#define AMASK_BWX (1 << 0)
#define AMASK_FIX (1 << 1)
Falk Hüffner's avatar
Falk Hüffner committed
42
#define AMASK_CIX (1 << 2)
43 44
#define AMASK_MVI (1 << 8)

Alex Beregszaszi's avatar
Alex Beregszaszi committed
45
static inline uint64_t BYTE_VEC(uint64_t x)
46 47 48 49 50 51
{
    x |= x <<  8;
    x |= x << 16;
    x |= x << 32;
    return x;
}
Alex Beregszaszi's avatar
Alex Beregszaszi committed
52
static inline uint64_t WORD_VEC(uint64_t x)
53 54 55 56 57 58
{
    x |= x << 16;
    x |= x << 32;
    return x;
}

Falk Hüffner's avatar
Falk Hüffner committed
59 60 61 62
#define ldq(p) (*(const uint64_t *) (p))
#define ldl(p) (*(const int32_t *) (p))
#define stl(l, p) do { *(uint32_t *) (p) = (l); } while (0)
#define stq(l, p) do { *(uint64_t *) (p) = (l); } while (0)
63
#define sextw(x) ((int16_t) (x))
64 65

#ifdef __GNUC__
Falk Hüffner's avatar
Falk Hüffner committed
66 67 68 69
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)

70
#if GNUC_PREREQ(3,3)
71 72 73 74
#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)
Falk Hüffner's avatar
Falk Hüffner committed
75 76 77
#define cmpbge	__builtin_alpha_cmpbge
/* Avoid warnings.  */
#define extql(a, b)	__builtin_alpha_extql(a, (uint64_t) (b))
78
#define extwl(a, b)	__builtin_alpha_extwl(a, (uint64_t) (b))
Falk Hüffner's avatar
Falk Hüffner committed
79 80 81 82 83 84
#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
85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
#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 GNUC_PREREQ(3,3) && defined(__alpha_max__)
Falk Hüffner's avatar
Falk Hüffner committed
103 104 105 106 107 108 109 110 111 112 113 114 115 116
#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
117 118 119 120 121 122 123 124 125 126 127 128 129
#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; })
Falk Hüffner's avatar
Falk Hüffner committed
130
#endif
131

132
#elif defined(__DECC)		/* Digital/Compaq/hp "ccc" compiler */
133 134

#include <c_asm.h>
Falk Hüffner's avatar
Falk Hüffner committed
135 136 137 138
#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)
139
#define extwl(a, b)  asm ("extwl   %a0,%a1,%v0", a, b)
Falk Hüffner's avatar
Falk Hüffner committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
#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)
159
#define wh64(a)      asm ("wh64    %a0", a)
Falk Hüffner's avatar
Falk Hüffner committed
160 161 162

#else
#error "Unknown compiler!"
163 164 165
#endif

#endif /* LIBAVCODEC_ALPHA_ASM_H */