85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common_types.h"
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#include <cstdlib>
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#define b2(x) ( (x) | ( (x) >> 1) )
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#define b4(x) ( b2(x) | ( b2(x) >> 2) )
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#define b8(x) ( b4(x) | ( b4(x) >> 4) )
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#define b16(x) ( b8(x) | ( b8(x) >> 8) )
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#define b32(x) (b16(x) | (b16(x) >>16) )
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#define ROUND_UP_POW2(x) (b32(x - 1) + 1)
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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/// Textually concatenates two tokens. The double-expansion is required by the C preprocessor.
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#define CONCAT2(x, y) DO_CONCAT2(x, y)
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#define DO_CONCAT2(x, y) x ## y
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// helper macro to properly align structure members.
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// Calling INSERT_PADDING_BYTES will add a new member variable with a name like "pad121",
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// depending on the current source line to make sure variable names are unique.
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#define INSERT_PADDING_BYTES(num_bytes) u8 CONCAT2(pad, __LINE__)[(num_bytes)]
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#define INSERT_PADDING_WORDS(num_words) u32 CONCAT2(pad, __LINE__)[(num_words)]
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#ifndef _MSC_VER
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#include <errno.h>
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#if defined(__x86_64__) || defined(_M_X64)
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#define Crash() __asm__ __volatile__("int $3")
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#elif defined(_M_ARM)
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#define Crash() __asm__ __volatile__("trap")
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#else
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#define Crash() exit(1)
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#endif
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// GCC 4.8 defines all the rotate functions now
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// Small issue with GCC's lrotl/lrotr intrinsics is they are still 32bit while we require 64bit
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#ifndef _rotl
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inline u32 _rotl(u32 x, int shift) {
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shift &= 31;
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if (!shift) return x;
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return (x << shift) | (x >> (32 - shift));
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}
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inline u32 _rotr(u32 x, int shift) {
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shift &= 31;
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if (!shift) return x;
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return (x >> shift) | (x << (32 - shift));
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}
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#endif
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inline u64 _rotl64(u64 x, unsigned int shift){
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unsigned int n = shift % 64;
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return (x << n) | (x >> (64 - n));
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}
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inline u64 _rotr64(u64 x, unsigned int shift){
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unsigned int n = shift % 64;
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return (x >> n) | (x << (64 - n));
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}
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#else // _MSC_VER
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// Function Cross-Compatibility
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#define snprintf _snprintf
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// Locale Cross-Compatibility
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#define locale_t _locale_t
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extern "C" {
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__declspec(dllimport) void __stdcall DebugBreak(void);
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}
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#define Crash() {DebugBreak();}
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#endif // _MSC_VER ndef
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// Generic function to get last error message.
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// Call directly after the command or use the error num.
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// This function might change the error code.
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// Defined in Misc.cpp.
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const char* GetLastErrorMsg();
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