diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/ntdrv/cpuinfo.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/ntdrv/cpuinfo.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/ntdrv/cpuinfo.c b/board/MAI/bios_emulator/scitech/src/pm/ntdrv/cpuinfo.c new file mode 100644 index 00000000000..e72a856019e --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/ntdrv/cpuinfo.c @@ -0,0 +1,65 @@ +/**************************************************************************** +* +* Ultra Long Period Timer +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* Language: ANSI C +* Environment: 32-bit Windows VxD +* +* Description: VxD specific code for the CPU detection module. +* +****************************************************************************/ + +/*----------------------------- Implementation ----------------------------*/ + +/**************************************************************************** +REMARKS: +Do nothing for VxD's +****************************************************************************/ +#define SetMaxThreadPriority() 0 + +/**************************************************************************** +REMARKS: +Do nothing for VxD's +****************************************************************************/ +#define RestoreThreadPriority(i) (void)(i) + +/**************************************************************************** +REMARKS: +Initialise the counter and return the frequency of the counter. +****************************************************************************/ +static void GetCounterFrequency( + CPU_largeInteger *freq) +{ + KeQueryPerformanceCounter((LARGE_INTEGER*)freq); +} + +/**************************************************************************** +REMARKS: +Read the counter and return the counter value. +****************************************************************************/ +#define GetCounter(t) \ +{ \ + LARGE_INTEGER lt = KeQueryPerformanceCounter(NULL); \ + (t)->low = lt.LowPart; \ + (t)->high = lt.HighPart; \ +} + |