ObjFW  Check-in [e5d734d1a7]

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Comment:Add ARMv6 inline assembly. Tested on iPhone.
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SHA3-256: e5d734d1a7e70de98470a863f167d5854a29ea6cbf787bdfa432fdf01fbef54c
User & Date: js on 2009-11-29 02:33:34
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Context
2009-11-29
03:03
Add run-on-iphone target to tests for more comfortable testing. check-in: 3a290a9951 user: js tags: trunk
02:33
Add ARMv6 inline assembly. Tested on iPhone. check-in: e5d734d1a7 user: js tags: trunk
01:59
Add OF_BSWAP{16,32,64}_CONST[_IF_{BE,LE}]. check-in: 68fb0166a7 user: js tags: trunk
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Modified src/OFMacros.h from [f063d53bfe] to [ad9b5b8288].

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 */

#ifndef OF_CONFIGURED
#error You are missing the ObjFW definitions!
#error Please use objfw-config!
#endif


#include <stdint.h>

#ifdef __GNUC__
#define OF_INLINE inline __attribute__((always_inline))
#define OF_LIKELY(cond) __builtin_expect(!!(cond), 1)
#define OF_UNLIKELY(cond) __builtin_expect(!!(cond), 0)
#else








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 */

#ifndef OF_CONFIGURED
#error You are missing the ObjFW definitions!
#error Please use objfw-config!
#endif

#include <stddef.h>
#include <stdint.h>

#ifdef __GNUC__
#define OF_INLINE inline __attribute__((always_inline))
#define OF_LIKELY(cond) __builtin_expect(!!(cond), 1)
#define OF_UNLIKELY(cond) __builtin_expect(!!(cond), 0)
#else
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#ifdef __GNUC__
#if defined(__amd64__) || defined(__x86_64__)
#define OF_AMD64_ASM
#elif defined(__i386__)
#define OF_X86_ASM
#elif defined(__ppc__) || defined(__PPC__)
#define OF_PPC_ASM


#endif
#endif

#define OF_BSWAP16_CONST(i)					\
	(((uint16_t)i & UINT16_C(0xFF00)) >> 8 |		\
	 ((uint16_t)i & UINT16_C(0x00FF)) << 8)
#define OF_BSWAP32_CONST(i)					\








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#ifdef __GNUC__
#if defined(__amd64__) || defined(__x86_64__)
#define OF_AMD64_ASM
#elif defined(__i386__)
#define OF_X86_ASM
#elif defined(__ppc__) || defined(__PPC__)
#define OF_PPC_ASM
#elif defined(__arm__) || defined(__ARM__)
#define OF_ARM_ASM
#endif
#endif

#define OF_BSWAP16_CONST(i)					\
	(((uint16_t)i & UINT16_C(0xFF00)) >> 8 |		\
	 ((uint16_t)i & UINT16_C(0x00FF)) << 8)
#define OF_BSWAP32_CONST(i)					\
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static OF_INLINE uint16_t
OF_BSWAP16(uint16_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
	asm("xchgb	%h0, %b0" : "=Q"(i) : "Q"(i));
#elif defined(OF_PPC_ASM)
	asm("lhbrx	%0, 0, %1" : "=r"(i) : "r"(&i), "m"(i));


#else
	i = (i & UINT16_C(0xFF00)) >> 8 |
	    (i & UINT16_C(0x00FF)) << 8;
#endif
	return i;
}

static OF_INLINE uint32_t
OF_BSWAP32(uint32_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
	asm("bswap	%0" : "=q"(i) : "q"(i));
#elif defined(OF_PPC_ASM)
	asm("lwbrx	%0, 0, %1" : "=r"(i) : "r"(&i), "m"(i));


#else
	i = (i & UINT32_C(0xFF000000)) >> 24 |
	    (i & UINT32_C(0x00FF0000)) >>  8 |
	    (i & UINT32_C(0x0000FF00)) <<  8 |
	    (i & UINT32_C(0x000000FF)) << 24;
#endif
	return i;








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static OF_INLINE uint16_t
OF_BSWAP16(uint16_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
	asm("xchgb	%h0, %b0" : "=Q"(i) : "Q"(i));
#elif defined(OF_PPC_ASM)
	asm("lhbrx	%0, 0, %1" : "=r"(i) : "r"(&i), "m"(i));
#elif defined(OF_ARM_ASM)
	asm("rev16	%0, %0" : "=r"(i) : "0"(i));
#else
	i = (i & UINT16_C(0xFF00)) >> 8 |
	    (i & UINT16_C(0x00FF)) << 8;
#endif
	return i;
}

static OF_INLINE uint32_t
OF_BSWAP32(uint32_t i)
{
#if defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
	asm("bswap	%0" : "=q"(i) : "q"(i));
#elif defined(OF_PPC_ASM)
	asm("lwbrx	%0, 0, %1" : "=r"(i) : "r"(&i), "m"(i));
#elif defined(OF_ARM_ASM)
	asm("rev	%0, %0" : "=r"(i) : "0"(i));
#else
	i = (i & UINT32_C(0xFF000000)) >> 24 |
	    (i & UINT32_C(0x00FF0000)) >>  8 |
	    (i & UINT32_C(0x0000FF00)) <<  8 |
	    (i & UINT32_C(0x000000FF)) << 24;
#endif
	return i;
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