Mark
36 lines
775 B
C
36 lines
775 B
C
|
|
|
|
static inline long __syscall3(long n, long a1, long a2, long a3) {
|
|
unsigned long ret;
|
|
asm volatile ("syscall"
|
|
:"=a"(ret)
|
|
:"a"(n),"D"(a1),"S"(a2),"d"(a3)
|
|
:"rcx","r11","memory");
|
|
return ret;
|
|
}
|
|
|
|
static inline long __syscall1(long n, long a1) {
|
|
unsigned long ret;
|
|
asm volatile ("syscall"
|
|
:"=a"(ret)
|
|
:"a"(n),"D"(a1)
|
|
:"rcx","r11","memory");
|
|
return ret;
|
|
}
|
|
|
|
char data[128] = {0};
|
|
|
|
void _start(void *arg) {
|
|
(void) arg;
|
|
const char *src = "abcde!\n";
|
|
for (long i = 0; i < 128; ++i) {
|
|
data[i] = src[i];
|
|
if (!src[i]) {
|
|
break;
|
|
}
|
|
}
|
|
__syscall3(1, 1, (long) data, 7);
|
|
__syscall1(60, 0);
|
|
while (1);
|
|
}
|