mirror of
https://github.com/libretro/RetroArch.git
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66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2012 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "benchmark.h"
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#if defined(__CELLOS_LV2__) || defined(GEKKO)
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#ifndef _PPU_INTRINSICS_H
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#include <ppu_intrinsics.h>
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#endif
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#elif defined(_XBOX360)
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#include <PPCIntrinsics.h>
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#elif defined(__linux__)
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#include <sys/time.h>
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#endif
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rarch_perf_tick_t rarch_get_perf_counter(void)
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{
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rarch_perf_tick_t time = 0;
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#ifdef _XBOX1
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#define rdtsc __asm __emit 0fh __asm __emit 031h
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LARGE_INTEGER time_tmp;
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rdtsc;
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__asm mov time_tmp.LowPart, eax;
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__asm mov time_tmp.HighPart, edx;
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time = time_tmp.QuadPart;
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#elif defined(__linux__)
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struct timespec tv;
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if (clock_gettime(CLOCK_MONOTONIC, &tv) == 0)
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time = (rarch_perf_tick_t)tv.tv_sec * 1000000000 + (rarch_perf_tick_t)tv.tv_nsec;
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else
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time = 0;
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#elif defined(__GNUC__) && !defined(RARCH_CONSOLE)
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#if defined(__i386__) || defined(__i486__)
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asm volatile ("rdtsc" : "=A" (time));
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#elif defined(__x86_64__)
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unsigned a, d;
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asm volatile ("rdtsc" : "=a" (a), "=d" (d));
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time = (rarch_perf_tick_t)a | ((rarch_perf_tick_t)d << 32);
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#endif
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#elif defined(__ARM_ARCH_6__) || defined(ANDROID)
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asm volatile( "mrc p15, 0, %0, c9, c13, 0" : "=r"(time) );
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#elif defined(__CELLOS_LV2__) || defined(GEKKO) || defined(_XBOX360)
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time = __mftb();
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#endif
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return time;
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}
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