os/libc/tasking.c
2020-07-12 14:28:58 -05:00

63 lines
1.0 KiB
C

#include <stdint.h>
#include <tasking.h>
#include <sys/types.h>
void yield() {
asm volatile(" \
mov $1, %eax; \
int $80; \
");
}
void createTask(void* task) {
asm volatile(" \
mov $2, %%eax; \
int $80; \
"::"b"(task));
}
void createTaskCr3(void* task,void* cr3) {
asm volatile(" \
mov $9, %%eax; \
int $80; \
"::"b"(task),"c"(cr3));
}
void createTaskCr3Param(void* task,void* cr3,uint32_t param1,uint32_t param2) {
asm volatile(" \
mov $12, %%eax; \
int $80; \
"::"b"(task),"c"(cr3),"d"(param1),"S"(param2));
}
void yieldToPID(uint32_t pid) {
asm volatile(" \
mov $15, %%eax; \
int $80; \
"::"b"(pid));
}
__attribute__((noreturn)) void exit(int code) {
code=code&0xff;
asm volatile(" \
mov $17, %%eax; \
int $80; \
"::"b"(code));
for(;;);
}
void blockTask(TaskState state) {
asm volatile(" \
mov $22, %%eax; \
int $80; \
"::"b"(state));
}
void unblockTask(pid_t pid) {
asm volatile(" \
mov $23, %%eax; \
int $80; \
"::"b"(pid));
}