xine-lib
1.2.10
xine-lib-1.2.10
src
video_dec
libmpeg2new
include
alpha_asm.h
Go to the documentation of this file.
1
/*
2
* Alpha assembly macros
3
* Copyright (c) 2002-2003 Falk Hueffner <falk@debian.org>
4
*
5
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
6
* See http://libmpeg2.sourceforge.net/ for updates.
7
*
8
* mpeg2dec is free software; you can redistribute it and/or modify
9
* it under the terms of the GNU General Public License as published by
10
* the Free Software Foundation; either version 2 of the License, or
11
* (at your option) any later version.
12
*
13
* mpeg2dec is distributed in the hope that it will be useful,
14
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
* GNU General Public License for more details.
17
*
18
* You should have received a copy of the GNU General Public License
19
* along with this program; if not, write to the Free Software
20
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21
*/
22
23
#ifndef ALPHA_ASM_H
24
#define ALPHA_ASM_H
25
26
#include <inttypes.h>
27
28
#if defined __GNUC__
29
# define GNUC_PREREQ(maj, min) \
30
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
31
#else
32
# define GNUC_PREREQ(maj, min) 0
33
#endif
34
35
#define AMASK_BWX (1 << 0)
36
#define AMASK_FIX (1 << 1)
37
#define AMASK_CIX (1 << 2)
38
#define AMASK_MVI (1 << 8)
39
40
#ifdef __alpha_bwx__
41
# define HAVE_BWX() 1
42
#else
43
# define HAVE_BWX() (amask(AMASK_BWX) == 0)
44
#endif
45
#ifdef __alpha_fix__
46
# define HAVE_FIX() 1
47
#else
48
# define HAVE_FIX() (amask(AMASK_FIX) == 0)
49
#endif
50
#ifdef __alpha_max__
51
# define HAVE_MVI() 1
52
#else
53
# define HAVE_MVI() (amask(AMASK_MVI) == 0)
54
#endif
55
#ifdef __alpha_cix__
56
# define HAVE_CIX() 1
57
#else
58
# define HAVE_CIX() (amask(AMASK_CIX) == 0)
59
#endif
60
61
inline
static
uint64_t
BYTE_VEC
(uint64_t x)
62
{
63
x |= x << 8;
64
x |= x << 16;
65
x |= x << 32;
66
return
x;
67
}
68
inline
static
uint64_t
WORD_VEC
(uint64_t x)
69
{
70
x |= x << 16;
71
x |= x << 32;
72
return
x;
73
}
74
75
#define ldq(p) (*(const uint64_t *) (p))
76
#define ldl(p) (*(const int32_t *) (p))
77
#define stl(l, p) do { *(uint32_t *) (p) = (l); } while (0)
78
#define stq(l, p) do { *(uint64_t *) (p) = (l); } while (0)
79
#define sextw(x) ((int16_t) (x))
80
81
#ifdef __GNUC__
82
struct
unaligned_long { uint64_t l; }
__attribute__
((packed));
83
#define ldq_u(p) (*(const uint64_t *) (((uint64_t) (p)) & ~7ul))
84
#define uldq(a) (((const struct unaligned_long *) (a))->l)
85
86
#if GNUC_PREREQ(3,3)
87
#define prefetch(p) __builtin_prefetch((p), 0, 1)
88
#define prefetch_en(p) __builtin_prefetch((p), 0, 0)
89
#define prefetch_m(p) __builtin_prefetch((p), 1, 1)
90
#define prefetch_men(p) __builtin_prefetch((p), 1, 0)
91
#define cmpbge __builtin_alpha_cmpbge
92
/* Avoid warnings. */
93
#define extql(a, b) __builtin_alpha_extql(a, (uint64_t) (b))
94
#define extwl(a, b) __builtin_alpha_extwl(a, (uint64_t) (b))
95
#define extqh(a, b) __builtin_alpha_extqh(a, (uint64_t) (b))
96
#define zap __builtin_alpha_zap
97
#define zapnot __builtin_alpha_zapnot
98
#define amask __builtin_alpha_amask
99
#define implver __builtin_alpha_implver
100
#define rpcc __builtin_alpha_rpcc
101
#else
102
#define prefetch(p) asm volatile("ldl $31,%0" : : "m"(*(const char *) (p)) : "memory")
103
#define prefetch_en(p) asm volatile("ldq $31,%0" : : "m"(*(const char *) (p)) : "memory")
104
#define prefetch_m(p) asm volatile("lds $f31,%0" : : "m"(*(const char *) (p)) : "memory")
105
#define prefetch_men(p) asm volatile("ldt $f31,%0" : : "m"(*(const char *) (p)) : "memory")
106
#define cmpbge(a, b) ({ uint64_t __r; asm ("cmpbge %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
107
#define extql(a, b) ({ uint64_t __r; asm ("extql %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
108
#define extwl(a, b) ({ uint64_t __r; asm ("extwl %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
109
#define extqh(a, b) ({ uint64_t __r; asm ("extqh %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
110
#define zap(a, b) ({ uint64_t __r; asm ("zap %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
111
#define zapnot(a, b) ({ uint64_t __r; asm ("zapnot %r1,%2,%0" : "=r" (__r) : "rJ" (a), "rI" (b)); __r; })
112
#define amask(a) ({ uint64_t __r; asm ("amask %1,%0" : "=r" (__r) : "rI" (a)); __r; })
113
#define implver() ({ uint64_t __r; asm ("implver %0" : "=r" (__r)); __r; })
114
#define rpcc() ({ uint64_t __r; asm volatile ("rpcc %0" : "=r" (__r)); __r; })
115
#endif
116
#define wh64(p) asm volatile("wh64 (%0)" : : "r"(p) : "memory")
117
118
#if GNUC_PREREQ(3,3) && defined(__alpha_max__)
119
#define minub8 __builtin_alpha_minub8
120
#define minsb8 __builtin_alpha_minsb8
121
#define minuw4 __builtin_alpha_minuw4
122
#define minsw4 __builtin_alpha_minsw4
123
#define maxub8 __builtin_alpha_maxub8
124
#define maxsb8 __builtin_alpha_maxsb8
125
#define maxuw4 __builtin_alpha_maxuw4
126
#define maxsw4 __builtin_alpha_maxsw4
127
#define perr __builtin_alpha_perr
128
#define pklb __builtin_alpha_pklb
129
#define pkwb __builtin_alpha_pkwb
130
#define unpkbl __builtin_alpha_unpkbl
131
#define unpkbw __builtin_alpha_unpkbw
132
#else
133
#define minub8(a, b) ({ uint64_t __r; asm (".arch ev6; minub8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
134
#define minsb8(a, b) ({ uint64_t __r; asm (".arch ev6; minsb8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
135
#define minuw4(a, b) ({ uint64_t __r; asm (".arch ev6; minuw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
136
#define minsw4(a, b) ({ uint64_t __r; asm (".arch ev6; minsw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
137
#define maxub8(a, b) ({ uint64_t __r; asm (".arch ev6; maxub8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
138
#define maxsb8(a, b) ({ uint64_t __r; asm (".arch ev6; maxsb8 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
139
#define maxuw4(a, b) ({ uint64_t __r; asm (".arch ev6; maxuw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
140
#define maxsw4(a, b) ({ uint64_t __r; asm (".arch ev6; maxsw4 %r1,%2,%0" : "=r" (__r) : "%rJ" (a), "rI" (b)); __r; })
141
#define perr(a, b) ({ uint64_t __r; asm (".arch ev6; perr %r1,%r2,%0" : "=r" (__r) : "%rJ" (a), "rJ" (b)); __r; })
142
#define pklb(a) ({ uint64_t __r; asm (".arch ev6; pklb %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
143
#define pkwb(a) ({ uint64_t __r; asm (".arch ev6; pkwb %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
144
#define unpkbl(a) ({ uint64_t __r; asm (".arch ev6; unpkbl %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
145
#define unpkbw(a) ({ uint64_t __r; asm (".arch ev6; unpkbw %r1,%0" : "=r" (__r) : "rJ" (a)); __r; })
146
#endif
147
148
#elif defined(__DECC)
/* Digital/Compaq/hp "ccc" compiler */
149
150
#include <c_asm.h>
151
#define ldq_u(a) asm ("ldq_u %v0,0(%a0)", a)
152
#define uldq(a) (*(const __unaligned uint64_t *) (a))
153
#define cmpbge(a, b) asm ("cmpbge %a0,%a1,%v0", a, b)
154
#define extql(a, b) asm ("extql %a0,%a1,%v0", a, b)
155
#define extwl(a, b) asm ("extwl %a0,%a1,%v0", a, b)
156
#define extqh(a, b) asm ("extqh %a0,%a1,%v0", a, b)
157
#define zap(a, b) asm ("zap %a0,%a1,%v0", a, b)
158
#define zapnot(a, b) asm ("zapnot %a0,%a1,%v0", a, b)
159
#define amask(a) asm ("amask %a0,%v0", a)
160
#define implver() asm ("implver %v0")
161
#define rpcc() asm ("rpcc %v0")
162
#define minub8(a, b) asm ("minub8 %a0,%a1,%v0", a, b)
163
#define minsb8(a, b) asm ("minsb8 %a0,%a1,%v0", a, b)
164
#define minuw4(a, b) asm ("minuw4 %a0,%a1,%v0", a, b)
165
#define minsw4(a, b) asm ("minsw4 %a0,%a1,%v0", a, b)
166
#define maxub8(a, b) asm ("maxub8 %a0,%a1,%v0", a, b)
167
#define maxsb8(a, b) asm ("maxsb8 %a0,%a1,%v0", a, b)
168
#define maxuw4(a, b) asm ("maxuw4 %a0,%a1,%v0", a, b)
169
#define maxsw4(a, b) asm ("maxsw4 %a0,%a1,%v0", a, b)
170
#define perr(a, b) asm ("perr %a0,%a1,%v0", a, b)
171
#define pklb(a) asm ("pklb %a0,%v0", a)
172
#define pkwb(a) asm ("pkwb %a0,%v0", a)
173
#define unpkbl(a) asm ("unpkbl %a0,%v0", a)
174
#define unpkbw(a) asm ("unpkbw %a0,%v0", a)
175
#define wh64(a) asm ("wh64 %a0", a)
176
177
#else
178
#error "Unknown compiler!"
179
#endif
180
181
#endif
/* ALPHA_ASM_H */
WORD_VEC
static uint64_t WORD_VEC(uint64_t x)
Definition:
alpha_asm.h:68
__attribute__
char **__environ __attribute__((weak, alias("fake__environ")))
BYTE_VEC
static uint64_t BYTE_VEC(uint64_t x)
Definition:
alpha_asm.h:61
Generated by
1.8.17