mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-29 14:13:19 +00:00
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/* CpuArch.h -- CPU specific code
|
|
2010-10-26: Igor Pavlov : Public domain */
|
|
|
|
#ifndef __CPU_ARCH_H
|
|
#define __CPU_ARCH_H
|
|
|
|
#include "Types.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
MY_CPU_LE means that CPU is LITTLE ENDIAN.
|
|
If MY_CPU_LE is not defined, we don't know about that property of platform (it can be LITTLE ENDIAN).
|
|
|
|
MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
|
|
If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform.
|
|
*/
|
|
|
|
#if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__)
|
|
#define MY_CPU_AMD64
|
|
#endif
|
|
|
|
#if defined(MY_CPU_AMD64) || defined(_M_IA64)
|
|
#define MY_CPU_64BIT
|
|
#endif
|
|
|
|
#if defined(_M_IX86) || defined(__i386__)
|
|
#define MY_CPU_X86
|
|
#endif
|
|
|
|
#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
|
|
#define MY_CPU_X86_OR_AMD64
|
|
#endif
|
|
|
|
#if defined(MY_CPU_X86) || defined(_M_ARM)
|
|
#define MY_CPU_32BIT
|
|
#endif
|
|
|
|
#if defined(_WIN32) && defined(_M_ARM)
|
|
#define MY_CPU_ARM_LE
|
|
#endif
|
|
|
|
#if defined(_WIN32) && defined(_M_IA64)
|
|
#define MY_CPU_IA64_LE
|
|
#endif
|
|
|
|
#if defined(MY_CPU_X86_OR_AMD64)
|
|
#define MY_CPU_LE_UNALIGN
|
|
#endif
|
|
|
|
#if defined(MY_CPU_X86_OR_AMD64) || defined(MY_CPU_ARM_LE) || defined(MY_CPU_IA64_LE) || defined(__ARMEL__) || defined(__MIPSEL__) || defined(__LITTLE_ENDIAN__)
|
|
#define MY_CPU_LE
|
|
#endif
|
|
|
|
#if defined(__BIG_ENDIAN__)
|
|
#define MY_CPU_BE
|
|
#endif
|
|
|
|
#if defined(MY_CPU_LE) && defined(MY_CPU_BE)
|
|
Stop_Compiling_Bad_Endian
|
|
#endif
|
|
|
|
#ifdef MY_CPU_LE_UNALIGN
|
|
|
|
#define GetUi16(p) (*(const uint16_t *)(p))
|
|
#define GetUi32(p) (*(const uint32_t *)(p))
|
|
#define GetUi64(p) (*(const uint64_t *)(p))
|
|
#define SetUi16(p, d) *(uint16_t *)(p) = (d);
|
|
#define SetUi32(p, d) *(uint32_t *)(p) = (d);
|
|
#define SetUi64(p, d) *(uint64_t *)(p) = (d);
|
|
|
|
#else
|
|
|
|
#define GetUi16(p) (((const uint8_t *)(p))[0] | ((uint16_t)((const uint8_t *)(p))[1] << 8))
|
|
|
|
#define GetUi32(p) ( \
|
|
((const uint8_t *)(p))[0] | \
|
|
((uint32_t)((const uint8_t *)(p))[1] << 8) | \
|
|
((uint32_t)((const uint8_t *)(p))[2] << 16) | \
|
|
((uint32_t)((const uint8_t *)(p))[3] << 24))
|
|
|
|
#define GetUi64(p) (GetUi32(p) | ((uint64_t)GetUi32(((const uint8_t *)(p)) + 4) << 32))
|
|
|
|
#define SetUi16(p, d) { uint32_t _x_ = (d); \
|
|
((uint8_t *)(p))[0] = (uint8_t)_x_; \
|
|
((uint8_t *)(p))[1] = (uint8_t)(_x_ >> 8); }
|
|
|
|
#define SetUi32(p, d) { uint32_t _x_ = (d); \
|
|
((uint8_t *)(p))[0] = (uint8_t)_x_; \
|
|
((uint8_t *)(p))[1] = (uint8_t)(_x_ >> 8); \
|
|
((uint8_t *)(p))[2] = (uint8_t)(_x_ >> 16); \
|
|
((uint8_t *)(p))[3] = (uint8_t)(_x_ >> 24); }
|
|
|
|
#define SetUi64(p, d) { uint64_t _x64_ = (d); \
|
|
SetUi32(p, (uint32_t)_x64_); \
|
|
SetUi32(((uint8_t *)(p)) + 4, (uint32_t)(_x64_ >> 32)); }
|
|
|
|
#endif
|
|
|
|
#if defined(MY_CPU_LE_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300)
|
|
|
|
#pragma intrinsic(_byteswap_ulong)
|
|
#pragma intrinsic(_byteswap_uint64)
|
|
#define GetBe32(p) _byteswap_ulong(*(const uint32_t *)(const uint8_t *)(p))
|
|
#define GetBe64(p) _byteswap_uint64(*(const uint64_t *)(const uint8_t *)(p))
|
|
|
|
#else
|
|
|
|
#define GetBe32(p) ( \
|
|
((uint32_t)((const uint8_t *)(p))[0] << 24) | \
|
|
((uint32_t)((const uint8_t *)(p))[1] << 16) | \
|
|
((uint32_t)((const uint8_t *)(p))[2] << 8) | \
|
|
((const uint8_t *)(p))[3] )
|
|
|
|
#define GetBe64(p) (((uint64_t)GetBe32(p) << 32) | GetBe32(((const uint8_t *)(p)) + 4))
|
|
|
|
#endif
|
|
|
|
#define GetBe16(p) (((uint16_t)((const uint8_t *)(p))[0] << 8) | ((const uint8_t *)(p))[1])
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|