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favoured use of old simple core; default to automatic core selection;

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some processor usage limiting capabilities for max cycles


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2721
This commit is contained in:
Sebastian Strohhäcker 2006-11-14 14:12:00 +00:00
parent 32e3a625d4
commit 26bc8da23d
9 changed files with 99 additions and 58 deletions
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14
src/dosbox.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dosbox.cpp,v 1.103 2006-10-27 13:37:14 c2woody Exp $ */
/* $Id: dosbox.cpp,v 1.104 2006-11-14 14:11:59 c2woody Exp $ */
#include <stdlib.h>
#include <stdarg.h>
@ -101,6 +101,8 @@ void MSCDEX_Init(Section*);
void EMS_Init(Section*);
void XMS_Init(Section*);
void DOS_KeyboardLayout_Init(Section*);
void AUTOEXEC_Init(Section*);
void SHELL_Init(void);
@ -148,7 +150,7 @@ increaseticks:
ticksScheduled = 0;
} else {
Bit32u ticksNew;
ticksNew=GetTicks();
ticksNew=GetTicks();
ticksScheduled += ticksAdded;
if (ticksNew > ticksLast) {
ticksRemain = ticksNew-ticksLast;
@ -160,7 +162,7 @@ increaseticks:
ticksAdded = ticksRemain;
if (CPU_CycleAutoAdjust && (ticksAdded > 15 || ticksScheduled >= 250 || ticksDone >= 250) ) {
/* ratio we are aiming for is around 90% usage*/
Bits ratio = (ticksScheduled * (90*1024/100)) / ticksDone ;
Bits ratio = (ticksScheduled * (CPU_CyclePercUsed*90*1024/100/100)) / ticksDone;
// LOG_MSG("Done %d schedulded %d ratio %d cycles %d", ticksDone, ticksScheduled, ratio, CPU_CycleMax);
if (ratio <= 1024)
CPU_CycleMax = (CPU_CycleMax * ratio) / 1024;
@ -277,12 +279,16 @@ void DOSBOX_Init(void) {
);
secprop=control->AddSection_prop("cpu",&CPU_Init,true);//done
#if (C_DYNAMIC_X86)
secprop->Add_string("core","auto");
#else
secprop->Add_string("core","normal");
#endif
secprop->Add_string("cycles","auto");
secprop->Add_int("cycleup",500);
secprop->Add_int("cycledown",20);
MSG_Add("CPU_CONFIGFILE_HELP",
"core -- CPU Core used in emulation: simple,normal,full"
"core -- CPU Core used in emulation: normal"
#if (C_DYNAMIC_X86)
",dynamic,auto.\n"
" auto switches from normal to dynamic if appropriate"