HelenOS-historicHelenOSHelenOS-doc

Català-Valencià – Catalan中文 – Chinese (Simplified)中文 – Chinese (Traditional)Česky – CzechDansk – DanishNederlands – DutchEnglish – EnglishSuomi – FinnishFrançais – FrenchDeutsch – Germanעברית – Hebrewहिंदी – HindiMagyar – HungarianBahasa Indonesia – IndonesianItaliano – Italian日本語 – Japanese한국어 – KoreanМакедонски – Macedonianमराठी – MarathiNorsk – NorwegianPolski – PolishPortuguês – PortuguesePortuguês – Portuguese (Brazil)Русский – RussianSlovenčina – SlovakSlovenščina – SlovenianEspañol – SpanishSvenska – SwedishTürkçe – TurkishУкраїнська – UkrainianOëzbekcha – Uzbek

Compare Revisions

• This comparison shows the changes necessary to convert path

  → /SPARTAN/trunk/arch/ia32 @ 57

  → /SPARTAN/trunk/arch/ia32 @ 58

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 57 → Rev 58

/SPARTAN/trunk/arch/ia32/include/cpu.h
30,6 → 30,7
#define __ia32_CPU_H__
#include <config.h>
#include <proc/thread.h>
#include <typedefs.h>
#include <arch/pm.h>
#include <arch/asm.h>
46,7 → 47,11
int model;
int stepping;
struct tss *tss;
thread_t *fpu_owner;
};
void set_TS_flag(void);
void reset_TS_flag(void);
#endif

/SPARTAN/trunk/arch/ia32/src/fpu_context.c
29,7 → 29,10
*/
#include <fpu_context.h>
#include <arch.h>
#include <cpu.h>
void fpu_context_save(fpu_context_t *fctx)
{
}
37,6 → 40,8
void fpu_context_restore(fpu_context_t *fctx)
{
if(THREAD==CPU->arch.fpu_owner) reset_TS_flag();
else set_TS_flag();
}

/SPARTAN/trunk/arch/ia32/src/cpu/cpu.c
61,9 → 61,38
"GenuineIntel"
};
void set_TS_flag(void)
{
asm
(
"mov %%cr0,%%eax;"
"or $8,%%eax;"
"mov %%eax,%%cr0;"
:
:
:"%eax"
);
}
void reset_TS_flag(void)
{
asm
(
"mov %%cr0,%%eax;"
"and $0xffFFffF7,%%eax;"
"mov %%eax,%%cr0;"
:
:
:"%eax"
);
}
void cpu_arch_init(void)
{
CPU->arch.tss = tss_p;
CPU->arch.fpu_owner=NULL;
}