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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/ztimer.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/ztimer.c | 516 |
1 files changed, 0 insertions, 516 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/ztimer.c b/board/MAI/bios_emulator/scitech/src/pm/ztimer.c deleted file mode 100644 index 5acf7b1f0c..0000000000 --- a/board/MAI/bios_emulator/scitech/src/pm/ztimer.c +++ /dev/null @@ -1,516 +0,0 @@ -/**************************************************************************** -* -* SciTech OS Portability Manager Library -* -* ======================================================================== -* -* 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: Any -* -* Description: Module to implement high precision timing on each OS. -* -****************************************************************************/ - -#include "ztimer.h" -#include "pmapi.h" -#include "oshdr.h" - -/*---------------------------- Global variables ---------------------------*/ - -static LZTimerObject LZTimer; -static ulong start,finish; -#ifdef __INTEL__ -static long cpuSpeed = -1; -static ibool haveRDTSC = false; -#endif - -/*----------------------------- Implementation ----------------------------*/ - -/* External Intel assembler functions */ -#ifdef __INTEL__ -/* {secret} */ -void _ASMAPI _CPU_readTimeStamp(CPU_largeInteger *time); -/* {secret} */ -ulong _ASMAPI _CPU_diffTime64(CPU_largeInteger *t1,CPU_largeInteger *t2,CPU_largeInteger *t); -/* {secret} */ -ulong _ASMAPI _CPU_calcMicroSec(CPU_largeInteger *count,ulong freq); -#endif - -#if defined(__SMX32__) -#include "smx/ztimer.c" -#elif defined(__RTTARGET__) -#include "rttarget/ztimer.c" -#elif defined(__REALDOS__) -#include "dos/ztimer.c" -#elif defined(__NT_DRIVER__) -#include "ntdrv/ztimer.c" -#elif defined(__WIN32_VXD__) -#include "vxd/ztimer.c" -#elif defined(__WINDOWS32__) -#include "win32/ztimer.c" -#elif defined(__OS2_VDD__) -#include "vdd/ztimer.c" -#elif defined(__OS2__) -#include "os2/ztimer.c" -#elif defined(__LINUX__) -#include "linux/ztimer.c" -#elif defined(__QNX__) -#include "qnx/ztimer.c" -#elif defined(__BEOS__) -#include "beos/ztimer.c" -#else -#error Timer library not ported to this platform yet! -#endif - -/*------------------------ Public interface routines ----------------------*/ - -/**************************************************************************** -DESCRIPTION: -Initializes the Zen Timer library (extended) - -PARAMETERS: -accurate - True of the speed should be measured accurately - -HEADER: -ztimer.h - -REMARKS: -This function initializes the Zen Timer library, and /must/ be called before -any of the remaining Zen Timer library functions are called. The accurate -parameter is used to determine whether highly accurate timing should be -used or not. If high accuracy is needed, more time is spent profiling the -actual speed of the CPU so that we can obtain highly accurate timing -results, but the time spent in the initialisation routine will be -significantly longer (on the order of 5 seconds). -****************************************************************************/ -void ZAPI ZTimerInitExt( - ibool accurate) -{ - if (cpuSpeed == -1) { - __ZTimerInit(); -#ifdef __INTEL__ - cpuSpeed = CPU_getProcessorSpeedInHZ(accurate); - haveRDTSC = CPU_haveRDTSC() && (cpuSpeed > 0); -#endif - } -} - -/**************************************************************************** -DESCRIPTION: -Initializes the Zen Timer library. - -HEADER: -ztimer.h - -REMARKS: -This function initializes the Zen Timer library, and /must/ be called before -any of the remaining Zen Timer library functions are called. -****************************************************************************/ -void ZAPI ZTimerInit(void) -{ - ZTimerInitExt(false); -} - -/**************************************************************************** -DESCRIPTION: -Starts the Long Period Zen Timer counting. - -HEADER: -ztimer.h - -PARAMETERS: -tm - Timer object to start timing with - -REMARKS: -Starts the Long Period Zen Timer counting. Once you have started the timer, -you can stop it with LZTimerOff or you can latch the current count with -LZTimerLap. - -The Long Period Zen Timer uses a number of different high precision timing -mechanisms to obtain microsecond accurate timings results whenever possible. -The following different techniques are used depending on the operating -system, runtime environment and CPU on the target machine. If the target -system has a Pentium CPU installed which supports the Read Time Stamp -Counter instruction (RDTSC), the Zen Timer library will use this to -obtain the maximum timing precision available. - -Under 32-bit Windows, if the Pentium RDTSC instruction is not available, we -first try to use the Win32 QueryPerformanceCounter API, and if that is not -available we fall back on the timeGetTime API which is always supported. - -Under 32-bit DOS, if the Pentium RDTSC instruction is not available, we -then do all timing using the old style 8253 timer chip. The 8253 timer -routines provide highly accurate timings results in pure DOS mode, however -in a DOS box under Windows or other Operating Systems the virtualization -of the timer can produce inaccurate results. - -Note: Because the Long Period Zen Timer stores the results in a 32-bit - unsigned integer, you can only time periods of up to 2^32 microseconds, - or about 1hr 20mins. For timing longer periods use the Ultra Long - Period Zen Timer. - -SEE ALSO: -LZTimerOff, LZTimerLap, LZTimerCount -****************************************************************************/ -void ZAPI LZTimerOnExt( - LZTimerObject *tm) -{ -#ifdef __INTEL__ - if (haveRDTSC) { - _CPU_readTimeStamp(&tm->start); - } - else -#endif - __LZTimerOn(tm); -} - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Long Period Zen Timer and keeps it -running. - -HEADER: -ztimer.h - -PARAMETERS: -tm - Timer object to do lap timing with - -RETURNS: -Count that has elapsed in microseconds. - -REMARKS: -Returns the current count that has elapsed since the last call to -LZTimerOn in microseconds. The time continues to run after this function is -called so you can call this function repeatedly. - -SEE ALSO: -LZTimerOn, LZTimerOff, LZTimerCount -****************************************************************************/ -ulong ZAPI LZTimerLapExt( - LZTimerObject *tm) -{ -#ifdef __INTEL__ - CPU_largeInteger tmLap,tmCount; - - if (haveRDTSC) { - _CPU_readTimeStamp(&tmLap); - _CPU_diffTime64(&tm->start,&tmLap,&tmCount); - return _CPU_calcMicroSec(&tmCount,cpuSpeed); - } - else -#endif - return __LZTimerLap(tm); -} - -/**************************************************************************** -DESCRIPTION: -Stops the Long Period Zen Timer counting. - -HEADER: -ztimer.h - -PARAMETERS: -tm - Timer object to stop timing with - -REMARKS: -Stops the Long Period Zen Timer counting and latches the count. Once you -have stopped the timer you can read the count with LZTimerCount. If you need -highly accurate timing, you should use the on and off functions rather than -the lap function since the lap function does not subtract the overhead of -the function calls from the timed count. - -SEE ALSO: -LZTimerOn, LZTimerLap, LZTimerCount -****************************************************************************/ -void ZAPI LZTimerOffExt( - LZTimerObject *tm) -{ -#ifdef __INTEL__ - if (haveRDTSC) { - _CPU_readTimeStamp(&tm->end); - } - else -#endif - __LZTimerOff(tm); -} - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Long Period Zen Timer. - -HEADER: -ztimer.h - -PARAMETERS: -tm - Timer object to compute the elapsed time with. - -RETURNS: -Count that has elapsed in microseconds. - -REMARKS: -Returns the current count that has elapsed between calls to -LZTimerOn and LZTimerOff in microseconds. - -SEE ALSO: -LZTimerOn, LZTimerOff, LZTimerLap -****************************************************************************/ -ulong ZAPI LZTimerCountExt( - LZTimerObject *tm) -{ -#ifdef __INTEL__ - CPU_largeInteger tmCount; - - if (haveRDTSC) { - _CPU_diffTime64(&tm->start,&tm->end,&tmCount); - return _CPU_calcMicroSec(&tmCount,cpuSpeed); - } - else -#endif - return __LZTimerCount(tm); -} - -/**************************************************************************** -DESCRIPTION: -Starts the Long Period Zen Timer counting. - -HEADER: -ztimer.h - -REMARKS: -Obsolete function. You should use the LZTimerOnExt function instead -which allows for multiple timers running at the same time. -****************************************************************************/ -void ZAPI LZTimerOn(void) -{ LZTimerOnExt(&LZTimer); } - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Long Period Zen Timer and keeps it -running. - -HEADER: -ztimer.h - -RETURNS: -Count that has elapsed in microseconds. - -REMARKS: -Obsolete function. You should use the LZTimerLapExt function instead -which allows for multiple timers running at the same time. -****************************************************************************/ -ulong ZAPI LZTimerLap(void) -{ return LZTimerLapExt(&LZTimer); } - -/**************************************************************************** -DESCRIPTION: -Stops the Long Period Zen Timer counting. - -HEADER: -ztimer.h - -REMARKS: -Obsolete function. You should use the LZTimerOffExt function instead -which allows for multiple timers running at the same time. -****************************************************************************/ -void ZAPI LZTimerOff(void) -{ LZTimerOffExt(&LZTimer); } - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Long Period Zen Timer. - -HEADER: -ztimer.h - -RETURNS: -Count that has elapsed in microseconds. - -REMARKS: -Obsolete function. You should use the LZTimerCountExt function instead -which allows for multiple timers running at the same time. -****************************************************************************/ -ulong ZAPI LZTimerCount(void) -{ return LZTimerCountExt(&LZTimer); } - -/**************************************************************************** -DESCRIPTION: -Starts the Ultra Long Period Zen Timer counting. - -HEADER: -ztimer.h - -REMARKS: -Starts the Ultra Long Period Zen Timer counting. Once you have started the -timer, you can stop it with ULZTimerOff or you can latch the current count -with ULZTimerLap. - -The Ultra Long Period Zen Timer uses the available operating system services -to obtain accurate timings results with as much precision as the operating -system provides, but with enough granularity to time longer periods of -time than the Long Period Zen Timer. Note that the resolution of the timer -ticks is not constant between different platforms, and you should use the -ULZTimerResolution function to determine the number of seconds in a single -tick of the timer, and use this to convert the timer counts to seconds. - -Under 32-bit Windows, we use the timeGetTime function which provides a -resolution of 1 millisecond (0.001 of a second). Given that the timer -count is returned as an unsigned 32-bit integer, this we can time intervals -that are a maximum of 2^32 milliseconds in length (or about 1,200 hours or -50 days!). - -Under 32-bit DOS, we use the system timer tick which runs at 18.2 times per -second. Given that the timer count is returned as an unsigned 32-bit integer, -this we can time intervals that are a maximum of 2^32 * (1/18.2) in length -(or about 65,550 hours or 2731 days!). - -SEE ALSO: -ULZTimerOff, ULZTimerLap, ULZTimerCount, ULZElapsedTime, ULZReadTime -****************************************************************************/ -void ZAPI ULZTimerOn(void) -{ start = __ULZReadTime(); } - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Ultra Long Period Zen Timer and keeps it -running. - -HEADER: -ztimer.h - -RETURNS: -Count that has elapsed in resolution counts. - -REMARKS: -Returns the current count that has elapsed since the last call to -ULZTimerOn in microseconds. The time continues to run after this function is -called so you can call this function repeatedly. - -SEE ALSO: -ULZTimerOn, ULZTimerOff, ULZTimerCount -****************************************************************************/ -ulong ZAPI ULZTimerLap(void) -{ return (__ULZReadTime() - start); } - -/**************************************************************************** -DESCRIPTION: -Stops the Long Period Zen Timer counting. - -HEADER: -ztimer.h - -REMARKS: -Stops the Ultra Long Period Zen Timer counting and latches the count. Once -you have stopped the timer you can read the count with ULZTimerCount. - -SEE ALSO: -ULZTimerOn, ULZTimerLap, ULZTimerCount -****************************************************************************/ -void ZAPI ULZTimerOff(void) -{ finish = __ULZReadTime(); } - -/**************************************************************************** -DESCRIPTION: -Returns the current count for the Ultra Long Period Zen Timer. - -HEADER: -ztimer.h - -RETURNS: -Count that has elapsed in resolution counts. - -REMARKS: -Returns the current count that has elapsed between calls to -ULZTimerOn and ULZTimerOff in resolution counts. - -SEE ALSO: -ULZTimerOn, ULZTimerOff, ULZTimerLap, ULZTimerResolution -****************************************************************************/ -ulong ZAPI ULZTimerCount(void) -{ return (finish - start); } - -/**************************************************************************** -DESCRIPTION: -Reads the current time from the Ultra Long Period Zen Timer. - -HEADER: -ztimer.h - -RETURNS: -Current timer value in resolution counts. - -REMARKS: -Reads the current Ultra Long Period Zen Timer and returns it’s current -count. You can use the ULZElapsedTime function to find the elapsed time -between two timer count readings. - -SEE ALSO: -ULZElapsedTime, ULZTimerResolution -****************************************************************************/ -ulong ZAPI ULZReadTime(void) -{ return __ULZReadTime(); } - -/**************************************************************************** -DESCRIPTION: -Compute the elapsed time between two timer counts. - -HEADER: -ztimer.h - -PARAMETERS: -start - Starting time for elapsed count -finish - Ending time for elapsed count - -RETURNS: -Elapsed timer in resolution counts. - -REMARKS: -Returns the elapsed time for the Ultra Long Period Zen Timer in units of the -timers resolution (1/18th of a second under DOS). This function correctly -computes the difference even if a midnight boundary has been crossed -during the timing period. - -SEE ALSO: -ULZReadTime, ULZTimerResolution -****************************************************************************/ -ulong ZAPI ULZElapsedTime( - ulong start, - ulong finish) -{ return __ULZElapsedTime(start,finish); } - -/**************************************************************************** -DESCRIPTION: -Returns the resolution of the Ultra Long Period Zen Timer. - -HEADER: -ztimer.h - -PARAMETERS: -resolution - Place to store the timer in microseconds per timer count. - -REMARKS: -Returns the resolution of the Ultra Long Period Zen Timer as a 32-bit -integer value measured in microseconds per timer count. - -SEE ALSO: -ULZReadTime, ULZElapsedTime, ULZTimerCount -****************************************************************************/ -void ZAPI ULZTimerResolution( - ulong *resolution) -{ *resolution = ULZTIMER_RESOLUTION; } |
