asm.h
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上传日期:2014-04-03
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文件大小:9k
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Windows CE
开发平台:
C/C++
- /*
- * 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 <inttypes.h>
- #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
- #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)
- (((union {
- uint64_t __l;
- __typeof__(*(p)) __s[sizeof (uint64_t) / sizeof *(p)];
- } *) (p))->__l)
- #define ldl(p)
- (((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 GNUC_PREREQ(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 GNUC_PREREQ(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 /* LIBAVCODEC_ALPHA_ASM_H */