source: bootcd/isolinux/syslinux-6.03/lzo/src/lzo_func.h

Last change on this file was e16e8f2, checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago

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[e16e8f2]1/* lzo_func.h -- functions
2
3   This file is part of the LZO real-time data compression library.
4
5   Copyright (C) 1996-2014 Markus Franz Xaver Johannes Oberhumer
6   All Rights Reserved.
7
8   The LZO library is free software; you can redistribute it and/or
9   modify it under the terms of the GNU General Public License as
10   published by the Free Software Foundation; either version 2 of
11   the License, or (at your option) any later version.
12
13   The LZO library 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 the LZO library; see the file COPYING.
20   If not, write to the Free Software Foundation, Inc.,
21   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22
23   Markus F.X.J. Oberhumer
24   <markus@oberhumer.com>
25   http://www.oberhumer.com/opensource/lzo/
26 */
27
28
29/* WARNING: this file should *not* be used by applications. It is
30   part of the implementation of the library and is subject
31   to change.
32 */
33
34
35#ifndef __LZO_FUNC_H
36#define __LZO_FUNC_H 1
37
38
39/***********************************************************************
40// bitops
41************************************************************************/
42
43#if !defined(LZO_BITOPS_USE_ASM_BITSCAN) && !defined(LZO_BITOPS_USE_GNUC_BITSCAN) && !defined(LZO_BITOPS_USE_MSC_BITSCAN)
44#if 1 && (LZO_ARCH_AMD64) && (LZO_CC_GNUC && (LZO_CC_GNUC < 0x040000ul)) && (LZO_ASM_SYNTAX_GNUC)
45#define LZO_BITOPS_USE_ASM_BITSCAN 1
46#elif (LZO_CC_CLANG || (LZO_CC_GNUC >= 0x030400ul) || (LZO_CC_INTELC_GNUC && (__INTEL_COMPILER >= 1000)) || (LZO_CC_LLVM && (!defined(__llvm_tools_version__) || (__llvm_tools_version__+0 >= 0x010500ul))))
47#define LZO_BITOPS_USE_GNUC_BITSCAN 1
48#elif (LZO_OS_WIN32 || LZO_OS_WIN64) && ((LZO_CC_INTELC_MSC && (__INTEL_COMPILER >= 1010)) || (LZO_CC_MSC && (_MSC_VER >= 1400)))
49#define LZO_BITOPS_USE_MSC_BITSCAN 1
50#if (LZO_CC_MSC) && (LZO_ARCH_AMD64 || LZO_ARCH_I386)
51#include <intrin.h>
52#endif
53#if (LZO_CC_MSC) && (LZO_ARCH_AMD64 || LZO_ARCH_I386)
54#pragma intrinsic(_BitScanReverse)
55#pragma intrinsic(_BitScanForward)
56#endif
57#if (LZO_CC_MSC) && (LZO_ARCH_AMD64)
58#pragma intrinsic(_BitScanReverse64)
59#pragma intrinsic(_BitScanForward64)
60#endif
61#endif
62#endif
63
64__lzo_static_forceinline unsigned lzo_bitops_ctlz32_func(lzo_uint32_t v)
65{
66#if (LZO_BITOPS_USE_MSC_BITSCAN) && (LZO_ARCH_AMD64 || LZO_ARCH_I386)
67    unsigned long r; (void) _BitScanReverse(&r, v); return (unsigned) r ^ 31;
68#define lzo_bitops_ctlz32(v)    lzo_bitops_ctlz32_func(v)
69#elif (LZO_BITOPS_USE_ASM_BITSCAN) && (LZO_ARCH_AMD64 || LZO_ARCH_I386) && (LZO_ASM_SYNTAX_GNUC)
70    lzo_uint32_t r;
71    __asm__("bsr %1,%0" : "=r" (r) : "rm" (v) __LZO_ASM_CLOBBER_LIST_CC);
72    return (unsigned) r ^ 31;
73#define lzo_bitops_ctlz32(v)    lzo_bitops_ctlz32_func(v)
74#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_INT == 4)
75    unsigned r; r = (unsigned) __builtin_clz(v); return r;
76#define lzo_bitops_ctlz32(v)    ((unsigned) __builtin_clz(v))
77#else
78    LZO_UNUSED(v); return 0;
79#endif
80}
81
82#if defined(lzo_uint64_t)
83__lzo_static_forceinline unsigned lzo_bitops_ctlz64_func(lzo_uint64_t v)
84{
85#if (LZO_BITOPS_USE_MSC_BITSCAN) && (LZO_ARCH_AMD64)
86    unsigned long r; (void) _BitScanReverse64(&r, v); return (unsigned) r ^ 63;
87#define lzo_bitops_ctlz64(v)    lzo_bitops_ctlz64_func(v)
88#elif (LZO_BITOPS_USE_ASM_BITSCAN) && (LZO_ARCH_AMD64) && (LZO_ASM_SYNTAX_GNUC)
89    lzo_uint64_t r;
90    __asm__("bsr %1,%0" : "=r" (r) : "rm" (v) __LZO_ASM_CLOBBER_LIST_CC);
91    return (unsigned) r ^ 63;
92#define lzo_bitops_ctlz64(v)    lzo_bitops_ctlz64_func(v)
93#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_LONG == 8) && (LZO_WORDSIZE >= 8)
94    unsigned r; r = (unsigned) __builtin_clzl(v); return r;
95#define lzo_bitops_ctlz64(v)    ((unsigned) __builtin_clzl(v))
96#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_LONG_LONG == 8) && (LZO_WORDSIZE >= 8)
97    unsigned r; r = (unsigned) __builtin_clzll(v); return r;
98#define lzo_bitops_ctlz64(v)    ((unsigned) __builtin_clzll(v))
99#else
100    LZO_UNUSED(v); return 0;
101#endif
102}
103#endif
104
105__lzo_static_forceinline unsigned lzo_bitops_cttz32_func(lzo_uint32_t v)
106{
107#if (LZO_BITOPS_USE_MSC_BITSCAN) && (LZO_ARCH_AMD64 || LZO_ARCH_I386)
108    unsigned long r; (void) _BitScanForward(&r, v); return (unsigned) r;
109#define lzo_bitops_cttz32(v)    lzo_bitops_cttz32_func(v)
110#elif (LZO_BITOPS_USE_ASM_BITSCAN) && (LZO_ARCH_AMD64 || LZO_ARCH_I386) && (LZO_ASM_SYNTAX_GNUC)
111    lzo_uint32_t r;
112    __asm__("bsf %1,%0" : "=r" (r) : "rm" (v) __LZO_ASM_CLOBBER_LIST_CC);
113    return (unsigned) r;
114#define lzo_bitops_cttz32(v)    lzo_bitops_cttz32_func(v)
115#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_INT >= 4)
116    unsigned r; r = (unsigned) __builtin_ctz(v); return r;
117#define lzo_bitops_cttz32(v)    ((unsigned) __builtin_ctz(v))
118#else
119    LZO_UNUSED(v); return 0;
120#endif
121}
122
123#if defined(lzo_uint64_t)
124__lzo_static_forceinline unsigned lzo_bitops_cttz64_func(lzo_uint64_t v)
125{
126#if (LZO_BITOPS_USE_MSC_BITSCAN) && (LZO_ARCH_AMD64)
127    unsigned long r; (void) _BitScanForward64(&r, v); return (unsigned) r;
128#define lzo_bitops_cttz64(v)    lzo_bitops_cttz64_func(v)
129#elif (LZO_BITOPS_USE_ASM_BITSCAN) && (LZO_ARCH_AMD64) && (LZO_ASM_SYNTAX_GNUC)
130    lzo_uint64_t r;
131    __asm__("bsf %1,%0" : "=r" (r) : "rm" (v) __LZO_ASM_CLOBBER_LIST_CC);
132    return (unsigned) r;
133#define lzo_bitops_cttz64(v)    lzo_bitops_cttz64_func(v)
134#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_LONG >= 8) && (LZO_WORDSIZE >= 8)
135    unsigned r; r = (unsigned) __builtin_ctzl(v); return r;
136#define lzo_bitops_cttz64(v)    ((unsigned) __builtin_ctzl(v))
137#elif (LZO_BITOPS_USE_GNUC_BITSCAN) && (LZO_SIZEOF_LONG_LONG >= 8) && (LZO_WORDSIZE >= 8)
138    unsigned r; r = (unsigned) __builtin_ctzll(v); return r;
139#define lzo_bitops_cttz64(v)    ((unsigned) __builtin_ctzll(v))
140#else
141    LZO_UNUSED(v); return 0;
142#endif
143}
144#endif
145
146#if 1 && (LZO_CC_ARMCC_GNUC || LZO_CC_CLANG || (LZO_CC_GNUC >= 0x020700ul) || LZO_CC_INTELC_GNUC || LZO_CC_LLVM || LZO_CC_PATHSCALE || LZO_CC_PGI)
147static void __attribute__((__unused__))
148#else
149__lzo_static_forceinline void
150#endif
151lzo_bitops_unused_funcs(void)
152{
153    LZO_UNUSED_FUNC(lzo_bitops_ctlz32_func);
154    LZO_UNUSED_FUNC(lzo_bitops_cttz32_func);
155#if defined(lzo_uint64_t)
156    LZO_UNUSED_FUNC(lzo_bitops_ctlz64_func);
157    LZO_UNUSED_FUNC(lzo_bitops_cttz64_func);
158#endif
159    LZO_UNUSED_FUNC(lzo_bitops_unused_funcs);
160}
161
162
163/***********************************************************************
164// memops
165************************************************************************/
166
167#if defined(__lzo_alignof) && !(LZO_CFG_NO_UNALIGNED)
168#ifndef __lzo_memops_tcheck
169#define __lzo_memops_tcheck(t,a,b) ((void)0, sizeof(t) == (a) && __lzo_alignof(t) == (b))
170#endif
171#endif
172#ifndef lzo_memops_TU0p
173#define lzo_memops_TU0p void __LZO_MMODEL *
174#endif
175#ifndef lzo_memops_TU1p
176#define lzo_memops_TU1p unsigned char __LZO_MMODEL *
177#endif
178#ifndef lzo_memops_TU2p
179#if (LZO_OPT_UNALIGNED16)
180typedef lzo_uint16_t __lzo_may_alias lzo_memops_TU2;
181#define lzo_memops_TU2p volatile lzo_memops_TU2 *
182#elif defined(__lzo_byte_struct)
183__lzo_byte_struct(lzo_memops_TU2_struct,2)
184typedef struct lzo_memops_TU2_struct lzo_memops_TU2;
185#else
186struct lzo_memops_TU2_struct { unsigned char a[2]; } __lzo_may_alias;
187typedef struct lzo_memops_TU2_struct lzo_memops_TU2;
188#endif
189#ifndef lzo_memops_TU2p
190#define lzo_memops_TU2p lzo_memops_TU2 *
191#endif
192#endif
193#ifndef lzo_memops_TU4p
194#if (LZO_OPT_UNALIGNED32)
195typedef lzo_uint32_t __lzo_may_alias lzo_memops_TU4;
196#define lzo_memops_TU4p volatile lzo_memops_TU4 __LZO_MMODEL *
197#elif defined(__lzo_byte_struct)
198__lzo_byte_struct(lzo_memops_TU4_struct,4)
199typedef struct lzo_memops_TU4_struct lzo_memops_TU4;
200#else
201struct lzo_memops_TU4_struct { unsigned char a[4]; } __lzo_may_alias;
202typedef struct lzo_memops_TU4_struct lzo_memops_TU4;
203#endif
204#ifndef lzo_memops_TU4p
205#define lzo_memops_TU4p lzo_memops_TU4 __LZO_MMODEL *
206#endif
207#endif
208#ifndef lzo_memops_TU8p
209#if (LZO_OPT_UNALIGNED64)
210typedef lzo_uint64_t __lzo_may_alias lzo_memops_TU8;
211#define lzo_memops_TU8p volatile lzo_memops_TU8 __LZO_MMODEL *
212#elif defined(__lzo_byte_struct)
213__lzo_byte_struct(lzo_memops_TU8_struct,8)
214typedef struct lzo_memops_TU8_struct lzo_memops_TU8;
215#else
216struct lzo_memops_TU8_struct { unsigned char a[8]; } __lzo_may_alias;
217typedef struct lzo_memops_TU8_struct lzo_memops_TU8;
218#endif
219#ifndef lzo_memops_TU8p
220#define lzo_memops_TU8p lzo_memops_TU8 __LZO_MMODEL *
221#endif
222#endif
223#ifndef lzo_memops_set_TU1p
224#define lzo_memops_set_TU1p     volatile lzo_memops_TU1p
225#endif
226#ifndef lzo_memops_move_TU1p
227#define lzo_memops_move_TU1p    lzo_memops_TU1p
228#endif
229#define LZO_MEMOPS_SET1(dd,cc) \
230    LZO_BLOCK_BEGIN \
231    lzo_memops_set_TU1p d__1 = (lzo_memops_set_TU1p) (lzo_memops_TU0p) (dd); \
232    d__1[0] = LZO_BYTE(cc); \
233    LZO_BLOCK_END
234#define LZO_MEMOPS_SET2(dd,cc) \
235    LZO_BLOCK_BEGIN \
236    lzo_memops_set_TU1p d__2 = (lzo_memops_set_TU1p) (lzo_memops_TU0p) (dd); \
237    d__2[0] = LZO_BYTE(cc); d__2[1] = LZO_BYTE(cc); \
238    LZO_BLOCK_END
239#define LZO_MEMOPS_SET3(dd,cc) \
240    LZO_BLOCK_BEGIN \
241    lzo_memops_set_TU1p d__3 = (lzo_memops_set_TU1p) (lzo_memops_TU0p) (dd); \
242    d__3[0] = LZO_BYTE(cc); d__3[1] = LZO_BYTE(cc); d__3[2] = LZO_BYTE(cc); \
243    LZO_BLOCK_END
244#define LZO_MEMOPS_SET4(dd,cc) \
245    LZO_BLOCK_BEGIN \
246    lzo_memops_set_TU1p d__4 = (lzo_memops_set_TU1p) (lzo_memops_TU0p) (dd); \
247    d__4[0] = LZO_BYTE(cc); d__4[1] = LZO_BYTE(cc); d__4[2] = LZO_BYTE(cc); d__4[3] = LZO_BYTE(cc); \
248    LZO_BLOCK_END
249#define LZO_MEMOPS_MOVE1(dd,ss) \
250    LZO_BLOCK_BEGIN \
251    lzo_memops_move_TU1p d__1 = (lzo_memops_move_TU1p) (lzo_memops_TU0p) (dd); \
252    const lzo_memops_move_TU1p s__1 = (const lzo_memops_move_TU1p) (const lzo_memops_TU0p) (ss); \
253    d__1[0] = s__1[0]; \
254    LZO_BLOCK_END
255#define LZO_MEMOPS_MOVE2(dd,ss) \
256    LZO_BLOCK_BEGIN \
257    lzo_memops_move_TU1p d__2 = (lzo_memops_move_TU1p) (lzo_memops_TU0p) (dd); \
258    const lzo_memops_move_TU1p s__2 = (const lzo_memops_move_TU1p) (const lzo_memops_TU0p) (ss); \
259    d__2[0] = s__2[0]; d__2[1] = s__2[1]; \
260    LZO_BLOCK_END
261#define LZO_MEMOPS_MOVE3(dd,ss) \
262    LZO_BLOCK_BEGIN \
263    lzo_memops_move_TU1p d__3 = (lzo_memops_move_TU1p) (lzo_memops_TU0p) (dd); \
264    const lzo_memops_move_TU1p s__3 = (const lzo_memops_move_TU1p) (const lzo_memops_TU0p) (ss); \
265    d__3[0] = s__3[0]; d__3[1] = s__3[1]; d__3[2] = s__3[2]; \
266    LZO_BLOCK_END
267#define LZO_MEMOPS_MOVE4(dd,ss) \
268    LZO_BLOCK_BEGIN \
269    lzo_memops_move_TU1p d__4 = (lzo_memops_move_TU1p) (lzo_memops_TU0p) (dd); \
270    const lzo_memops_move_TU1p s__4 = (const lzo_memops_move_TU1p) (const lzo_memops_TU0p) (ss); \
271    d__4[0] = s__4[0]; d__4[1] = s__4[1]; d__4[2] = s__4[2]; d__4[3] = s__4[3]; \
272    LZO_BLOCK_END
273#define LZO_MEMOPS_MOVE8(dd,ss) \
274    LZO_BLOCK_BEGIN \
275    lzo_memops_move_TU1p d__8 = (lzo_memops_move_TU1p) (lzo_memops_TU0p) (dd); \
276    const lzo_memops_move_TU1p s__8 = (const lzo_memops_move_TU1p) (const lzo_memops_TU0p) (ss); \
277    d__8[0] = s__8[0]; d__8[1] = s__8[1]; d__8[2] = s__8[2]; d__8[3] = s__8[3]; \
278    d__8[4] = s__8[4]; d__8[5] = s__8[5]; d__8[6] = s__8[6]; d__8[7] = s__8[7]; \
279    LZO_BLOCK_END
280LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(*(lzo_memops_TU1p)0)==1)
281#define LZO_MEMOPS_COPY1(dd,ss) LZO_MEMOPS_MOVE1(dd,ss)
282#if (LZO_OPT_UNALIGNED16)
283LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(*(lzo_memops_TU2p)0)==2)
284#define LZO_MEMOPS_COPY2(dd,ss) \
285    * (lzo_memops_TU2p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU2p) (const lzo_memops_TU0p) (ss)
286#elif defined(__lzo_memops_tcheck)
287#define LZO_MEMOPS_COPY2(dd,ss) \
288    LZO_BLOCK_BEGIN if (__lzo_memops_tcheck(lzo_memops_TU2,2,1)) { \
289        * (lzo_memops_TU2p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU2p) (const lzo_memops_TU0p) (ss); \
290    } else { LZO_MEMOPS_MOVE2(dd,ss); } LZO_BLOCK_END
291#else
292#define LZO_MEMOPS_COPY2(dd,ss) LZO_MEMOPS_MOVE2(dd,ss)
293#endif
294#if (LZO_OPT_UNALIGNED32)
295LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(*(lzo_memops_TU4p)0)==4)
296#define LZO_MEMOPS_COPY4(dd,ss) \
297    * (lzo_memops_TU4p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU4p) (const lzo_memops_TU0p) (ss)
298#elif defined(__lzo_memops_tcheck)
299#define LZO_MEMOPS_COPY4(dd,ss) \
300    LZO_BLOCK_BEGIN if (__lzo_memops_tcheck(lzo_memops_TU4,4,1)) { \
301        * (lzo_memops_TU4p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU4p) (const lzo_memops_TU0p) (ss); \
302    } else { LZO_MEMOPS_MOVE4(dd,ss); } LZO_BLOCK_END
303#else
304#define LZO_MEMOPS_COPY4(dd,ss) LZO_MEMOPS_MOVE4(dd,ss)
305#endif
306#if (LZO_WORDSIZE != 8)
307#define LZO_MEMOPS_COPY8(dd,ss) \
308    LZO_BLOCK_BEGIN LZO_MEMOPS_COPY4(dd,ss); LZO_MEMOPS_COPY4((lzo_memops_TU1p)(lzo_memops_TU0p)(dd)+4,(const lzo_memops_TU1p)(const lzo_memops_TU0p)(ss)+4); LZO_BLOCK_END
309#else
310#if (LZO_OPT_UNALIGNED64)
311LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(*(lzo_memops_TU8p)0)==8)
312#define LZO_MEMOPS_COPY8(dd,ss) \
313    * (lzo_memops_TU8p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU8p) (const lzo_memops_TU0p) (ss)
314#elif (LZO_OPT_UNALIGNED32)
315#define LZO_MEMOPS_COPY8(dd,ss) \
316    LZO_BLOCK_BEGIN LZO_MEMOPS_COPY4(dd,ss); LZO_MEMOPS_COPY4((lzo_memops_TU1p)(lzo_memops_TU0p)(dd)+4,(const lzo_memops_TU1p)(const lzo_memops_TU0p)(ss)+4); LZO_BLOCK_END
317#elif defined(__lzo_memops_tcheck)
318#define LZO_MEMOPS_COPY8(dd,ss) \
319    LZO_BLOCK_BEGIN if (__lzo_memops_tcheck(lzo_memops_TU8,8,1)) { \
320        * (lzo_memops_TU8p) (lzo_memops_TU0p) (dd) = * (const lzo_memops_TU8p) (const lzo_memops_TU0p) (ss); \
321    } else { LZO_MEMOPS_MOVE8(dd,ss); } LZO_BLOCK_END
322#else
323#define LZO_MEMOPS_COPY8(dd,ss) LZO_MEMOPS_MOVE8(dd,ss)
324#endif
325#endif
326#define LZO_MEMOPS_COPYN(dd,ss,nn) \
327    LZO_BLOCK_BEGIN \
328    lzo_memops_TU1p d__n = (lzo_memops_TU1p) (lzo_memops_TU0p) (dd); \
329    const lzo_memops_TU1p s__n = (const lzo_memops_TU1p) (const lzo_memops_TU0p) (ss); \
330    lzo_uint n__n = (nn); \
331    while ((void)0, n__n >= 8) { LZO_MEMOPS_COPY8(d__n, s__n); d__n += 8; s__n += 8; n__n -= 8; } \
332    if ((void)0, n__n >= 4) { LZO_MEMOPS_COPY4(d__n, s__n); d__n += 4; s__n += 4; n__n -= 4; } \
333    if ((void)0, n__n > 0) do { *d__n++ = *s__n++; } while (--n__n > 0); \
334    LZO_BLOCK_END
335
336__lzo_static_forceinline lzo_uint16_t lzo_memops_get_le16(const lzo_voidp ss)
337{
338    lzo_uint16_t v;
339#if (LZO_ABI_LITTLE_ENDIAN)
340    LZO_MEMOPS_COPY2(&v, ss);
341#elif (LZO_OPT_UNALIGNED16 && LZO_ARCH_POWERPC && LZO_ABI_BIG_ENDIAN) && (LZO_ASM_SYNTAX_GNUC)
342    const lzo_memops_TU2p s = (const lzo_memops_TU2p) ss;
343    unsigned long vv;
344    __asm__("lhbrx %0,0,%1" : "=r" (vv) : "r" (s), "m" (*s));
345    v = (lzo_uint16_t) vv;
346#else
347    const lzo_memops_TU1p s = (const lzo_memops_TU1p) ss;
348    v = (lzo_uint16_t) (((lzo_uint16_t)s[0]) | ((lzo_uint16_t)s[1] << 8));
349#endif
350    return v;
351}
352#if (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN)
353#define LZO_MEMOPS_GET_LE16(ss)    * (const lzo_memops_TU2p) (const lzo_memops_TU0p) (ss)
354#else
355#define LZO_MEMOPS_GET_LE16(ss)    lzo_memops_get_le16(ss)
356#endif
357
358__lzo_static_forceinline lzo_uint32_t lzo_memops_get_le32(const lzo_voidp ss)
359{
360    lzo_uint32_t v;
361#if (LZO_ABI_LITTLE_ENDIAN)
362    LZO_MEMOPS_COPY4(&v, ss);
363#elif (LZO_OPT_UNALIGNED32 && LZO_ARCH_POWERPC && LZO_ABI_BIG_ENDIAN) && (LZO_ASM_SYNTAX_GNUC)
364    const lzo_memops_TU4p s = (const lzo_memops_TU4p) ss;
365    unsigned long vv;
366    __asm__("lwbrx %0,0,%1" : "=r" (vv) : "r" (s), "m" (*s));
367    v = (lzo_uint32_t) vv;
368#else
369    const lzo_memops_TU1p s = (const lzo_memops_TU1p) ss;
370    v = (lzo_uint32_t) (((lzo_uint32_t)s[0] << 24) | ((lzo_uint32_t)s[1] << 16) | ((lzo_uint32_t)s[2] << 8) | ((lzo_uint32_t)s[3]));
371#endif
372    return v;
373}
374#if (LZO_OPT_UNALIGNED32) && (LZO_ABI_LITTLE_ENDIAN)
375#define LZO_MEMOPS_GET_LE32(ss)    * (const lzo_memops_TU4p) (const lzo_memops_TU0p) (ss)
376#else
377#define LZO_MEMOPS_GET_LE32(ss)    lzo_memops_get_le32(ss)
378#endif
379
380#if (LZO_OPT_UNALIGNED64) && (LZO_ABI_LITTLE_ENDIAN)
381#define LZO_MEMOPS_GET_LE64(ss)    * (const lzo_memops_TU8p) (const lzo_memops_TU0p) (ss)
382#endif
383
384__lzo_static_forceinline lzo_uint16_t lzo_memops_get_ne16(const lzo_voidp ss)
385{
386    lzo_uint16_t v;
387    LZO_MEMOPS_COPY2(&v, ss);
388    return v;
389}
390#if (LZO_OPT_UNALIGNED16)
391#define LZO_MEMOPS_GET_NE16(ss)    * (const lzo_memops_TU2p) (const lzo_memops_TU0p) (ss)
392#else
393#define LZO_MEMOPS_GET_NE16(ss)    lzo_memops_get_ne16(ss)
394#endif
395
396__lzo_static_forceinline lzo_uint32_t lzo_memops_get_ne32(const lzo_voidp ss)
397{
398    lzo_uint32_t v;
399    LZO_MEMOPS_COPY4(&v, ss);
400    return v;
401}
402#if (LZO_OPT_UNALIGNED32)
403#define LZO_MEMOPS_GET_NE32(ss)    * (const lzo_memops_TU4p) (const lzo_memops_TU0p) (ss)
404#else
405#define LZO_MEMOPS_GET_NE32(ss)    lzo_memops_get_ne32(ss)
406#endif
407
408#if (LZO_OPT_UNALIGNED64)
409#define LZO_MEMOPS_GET_NE64(ss)    * (const lzo_memops_TU8p) (const lzo_memops_TU0p) (ss)
410#endif
411
412__lzo_static_forceinline void lzo_memops_put_le16(lzo_voidp dd, lzo_uint16_t vv)
413{
414#if (LZO_ABI_LITTLE_ENDIAN)
415    LZO_MEMOPS_COPY2(dd, &vv);
416#elif (LZO_OPT_UNALIGNED16 && LZO_ARCH_POWERPC && LZO_ABI_BIG_ENDIAN) && (LZO_ASM_SYNTAX_GNUC)
417    lzo_memops_TU2p d = (lzo_memops_TU2p) dd;
418    unsigned long v = vv;
419    __asm__("sthbrx %2,0,%1" : "=m" (*d) : "r" (d), "r" (v));
420#else
421    lzo_memops_TU1p d = (lzo_memops_TU1p) dd;
422    d[0] = LZO_BYTE((vv      ) & 0xff);
423    d[1] = LZO_BYTE((vv >>  8) & 0xff);
424#endif
425}
426#if (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN)
427#define LZO_MEMOPS_PUT_LE16(dd,vv) (* (lzo_memops_TU2p) (lzo_memops_TU0p) (dd) = (vv))
428#else
429#define LZO_MEMOPS_PUT_LE16(dd,vv) lzo_memops_put_le16(dd,vv)
430#endif
431
432__lzo_static_forceinline void lzo_memops_put_le32(lzo_voidp dd, lzo_uint32_t vv)
433{
434#if (LZO_ABI_LITTLE_ENDIAN)
435    LZO_MEMOPS_COPY4(dd, &vv);
436#elif (LZO_OPT_UNALIGNED32 && LZO_ARCH_POWERPC && LZO_ABI_BIG_ENDIAN) && (LZO_ASM_SYNTAX_GNUC)
437    lzo_memops_TU4p d = (lzo_memops_TU4p) dd;
438    unsigned long v = vv;
439    __asm__("stwbrx %2,0,%1" : "=m" (*d) : "r" (d), "r" (v));
440#else
441    lzo_memops_TU1p d = (lzo_memops_TU1p) dd;
442    d[0] = LZO_BYTE((vv      ) & 0xff);
443    d[1] = LZO_BYTE((vv >>  8) & 0xff);
444    d[2] = LZO_BYTE((vv >> 16) & 0xff);
445    d[3] = LZO_BYTE((vv >> 24) & 0xff);
446#endif
447}
448#if (LZO_OPT_UNALIGNED32) && (LZO_ABI_LITTLE_ENDIAN)
449#define LZO_MEMOPS_PUT_LE32(dd,vv) (* (lzo_memops_TU4p) (lzo_memops_TU0p) (dd) = (vv))
450#else
451#define LZO_MEMOPS_PUT_LE32(dd,vv) lzo_memops_put_le32(dd,vv)
452#endif
453
454__lzo_static_forceinline void lzo_memops_put_ne16(lzo_voidp dd, lzo_uint16_t vv)
455{
456    LZO_MEMOPS_COPY2(dd, &vv);
457}
458#if (LZO_OPT_UNALIGNED16)
459#define LZO_MEMOPS_PUT_NE16(dd,vv) (* (lzo_memops_TU2p) (lzo_memops_TU0p) (dd) = (vv))
460#else
461#define LZO_MEMOPS_PUT_NE16(dd,vv) lzo_memops_put_ne16(dd,vv)
462#endif
463
464__lzo_static_forceinline void lzo_memops_put_ne32(lzo_voidp dd, lzo_uint32_t vv)
465{
466    LZO_MEMOPS_COPY4(dd, &vv);
467}
468#if (LZO_OPT_UNALIGNED32)
469#define LZO_MEMOPS_PUT_NE32(dd,vv) (* (lzo_memops_TU4p) (lzo_memops_TU0p) (dd) = (vv))
470#else
471#define LZO_MEMOPS_PUT_NE32(dd,vv) lzo_memops_put_ne32(dd,vv)
472#endif
473
474#if 1 && (LZO_CC_ARMCC_GNUC || LZO_CC_CLANG || (LZO_CC_GNUC >= 0x020700ul) || LZO_CC_INTELC_GNUC || LZO_CC_LLVM || LZO_CC_PATHSCALE || LZO_CC_PGI)
475static void __attribute__((__unused__))
476#else
477__lzo_static_forceinline void
478#endif
479lzo_memops_unused_funcs(void)
480{
481    LZO_UNUSED_FUNC(lzo_memops_get_le16);
482    LZO_UNUSED_FUNC(lzo_memops_get_le32);
483    LZO_UNUSED_FUNC(lzo_memops_get_ne16);
484    LZO_UNUSED_FUNC(lzo_memops_get_ne32);
485    LZO_UNUSED_FUNC(lzo_memops_put_le16);
486    LZO_UNUSED_FUNC(lzo_memops_put_le32);
487    LZO_UNUSED_FUNC(lzo_memops_put_ne16);
488    LZO_UNUSED_FUNC(lzo_memops_put_ne32);
489    LZO_UNUSED_FUNC(lzo_memops_unused_funcs);
490}
491
492#endif /* already included */
493
494/* vim:set ts=4 sw=4 et: */
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