OpenTTD Source
20241121-master-g67a0fccfad
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OS/CPU/compiler dependent CPU specific calls. More...
Go to the source code of this file.
Functions | |
void | ottd_cpuid (int info[4], int) |
Definitions for CPU detection: More... | |
bool | HasCPUIDFlag (uint type, uint index, uint bit) |
Check whether the current CPU has the given flag. More... | |
OS/CPU/compiler dependent CPU specific calls.
Definition in file cpu.cpp.
bool HasCPUIDFlag | ( | uint | type, |
uint | index, | ||
uint | bit | ||
) |
Check whether the current CPU has the given flag.
type | The type to be passing to cpuid (usually 1). |
index | The index in the returned info array. |
bit | The bit index that needs to be set. |
Definition at line 84 of file cpu.cpp.
References HasBit(), and ottd_cpuid().
void ottd_cpuid | ( | int | info[4], |
int | type | ||
) |
Definitions for CPU detection:
Get the CPUID information from the CPU.
MSVC offers cpu information while gcc only implements in gcc 4.8 __builtin_cpu_supports and friends http://msdn.microsoft.com/library/vstudio/hskdteyh%28v=vs.100%29.aspx http://gcc.gnu.org/onlinedocs/gcc/X86-Built-in-Functions.html
Other platforms/architectures don't have CPUID, so zero the info and then most (if not all) of the features are set as if they do not exist.
Definition at line 78 of file cpu.cpp.
Referenced by HasCPUIDFlag().