context.h

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#ifndef _CONTEXT_H
#define _CONTEXT_H

#include <kprocess.h>

static inline void RESTORE_CONTEXT() __attribute__((always_inline));
static inline void PUSH_CONTEXT() __attribute__((always_inline));

static inline void RESTORE_CONTEXT(){
                asm(
                /*On dépile les registres pour les mettre en place */
                 "pop %gs\n\t"
                 "pop %fs\n\t"
                 "pop %es\n\t"
                 "pop %ds\n\t"
                 "pop %edi\n\t"
                 "pop %esi\n\t"
                 "pop %ebp\n\t"
                 "pop %ebx\n\t"
                 "pop %edx\n\t"
                 "pop %ecx\n\t"
                 "pop %eax\n\t"
                 
                 /* Et on switch! (enfin! >_<) */
                 "iret\n\t"
         );
} 

static inline void PUSH_CONTEXT(process_t* current) {
        asm(
                        "push %0\n\t"
                        "push %1\n\t"
                        "push %2\n\t"
                        "push %3\n\t"
                        "push %4\n\t"
                        "push %5\n\t"
                        ::"m" (current->regs.eax),
                        "m" (current->regs.ecx),
                        "m" (current->regs.edx),
                        "m" (current->regs.ebx),
                        "m" (current->regs.ebp),
                        "m" (current->regs.esi)
        );
        asm(
                        "push %0\n\t"
                        "push %1\n\t"
                        "push %2\n\t"
                        "push %3\n\t"
                        "push %4\n\t"
                        ::
                        "m" (current->regs.edi),        
                        "m" (current->regs.ds),         
                        "m" (current->regs.es),         
                        "m" (current->regs.fs),         
                        "m" (current->regs.gs)          
        );
}


#endif /* _CONTEXT_H */