?? lib.c
字號:
#include "lib.h"
int exit(int error_code)
{
int ret;
__asm__(
"mov r0, %1\n"
"swi %2\n"
"mov %0, r0\n"
:"=r"(ret)
:"r"(error_code),"M"(__NR_exit)
:"r0"
);
return ret;
}
int sleep(int time)
{
int ret;
__asm__(
"mov r0, %1\n"
"swi %2\n"
"mov %0, r0\n"
:"=r"(ret)
:"r"(time),"M"(__NR_sleep)
:"r0"
);
return ret;
}
int write(char *str)
{
int ret;
__asm__(
"mov r0, %1\n"
"swi %2\n"
"mov %0, r0\n"
:"=r"(ret)
:"r"(str),"M"(__NR_write)
:"r0"
);
return ret;
}
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