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https://github.com/libretro/RetroArch.git
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6904101c44
== DETAILS Really simple code cleanup, because my editor flags trailing whitespaces and it's pretty annoying.
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* CpuArch.h -- CPU specific code
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2010-10-26: Igor Pavlov : Public domain */
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#ifndef __CPU_ARCH_H
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#define __CPU_ARCH_H
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#include "7zTypes.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
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If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform.
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*/
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#if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__)
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#define MY_CPU_AMD64
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#endif
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#if defined(MY_CPU_AMD64) || defined(_M_IA64)
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#define MY_CPU_64BIT
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#endif
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#if defined(_M_IX86) || defined(__i386__)
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#define MY_CPU_X86
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#endif
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#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
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#define MY_CPU_X86_OR_AMD64
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#endif
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#if defined(MY_CPU_X86) || defined(_M_ARM)
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#define MY_CPU_32BIT
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#endif
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#if defined(_WIN32) && defined(_M_ARM)
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#define MY_CPU_ARM_LE
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#endif
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#if defined(_WIN32) && defined(_M_IA64)
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#define MY_CPU_IA64_LE
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#endif
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#if defined(MY_CPU_X86_OR_AMD64)
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#define MY_CPU_LE_UNALIGN
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#endif
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#ifdef MY_CPU_LE_UNALIGN
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#define GetUi16(p) (*(const uint16_t *)(p))
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#define GetUi32(p) (*(const uint32_t *)(p))
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#define GetUi64(p) (*(const uint64_t *)(p))
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#else
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#define GetUi16(p) (((const uint8_t *)(p))[0] | ((uint16_t)((const uint8_t *)(p))[1] << 8))
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#define GetUi32(p) ( \
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((const uint8_t *)(p))[0] | \
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((uint32_t)((const uint8_t *)(p))[1] << 8) | \
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((uint32_t)((const uint8_t *)(p))[2] << 16) | \
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((uint32_t)((const uint8_t *)(p))[3] << 24))
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#define GetUi64(p) (GetUi32(p) | ((uint64_t)GetUi32(((const uint8_t *)(p)) + 4) << 32))
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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