mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-04 06:00:15 +00:00
36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/*
|
|
* This file is part of OpenTTD.
|
|
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
|
|
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** @file cpu.h Functions related to CPU specific instructions. */
|
|
|
|
#ifndef CPU_H
|
|
#define CPU_H
|
|
|
|
/**
|
|
* Get the tick counter from the CPU (high precision timing).
|
|
* @return The count.
|
|
*/
|
|
uint64 ottd_rdtsc();
|
|
|
|
/**
|
|
* Get the CPUID information from the CPU.
|
|
* @param info The retrieved info. All zeros on architectures without CPUID.
|
|
* @param type The information this instruction should retrieve.
|
|
*/
|
|
void ottd_cpuid(int info[4], int type);
|
|
|
|
/**
|
|
* Check whether the current CPU has the given flag.
|
|
* @param type The type to be passing to cpuid (usually 1).
|
|
* @param index The index in the returned info array.
|
|
* @param bit The bit index that needs to be set.
|
|
* @return The value of the bit, or false when there is no CPUID or the type is not available.
|
|
*/
|
|
bool HasCPUIDFlag(uint type, uint index, uint bit);
|
|
|
|
#endif /* CPU_H */
|