system_call.s

来自「MIPS Assembly Code - Hello World example」· S 代码 · 共 35 行

/*
	Perry:

	This example shows exactly like the following codes

	int main() {
		printk("Hello, World!\n");
		return;
	}

*/

.data
msg:	.ascii	"Hello, World!\n"
		len = . - msg

.text

		.global	_start

_start:

#sys_write
	movl	    $len,%edx
	movl	    $msg,%ecx
	movl	    $1,%ebx
	movl	    $4,%eax
	int      $0x80

# sys_exit
	movl	    	$0,%ebx
	movl	    	$1,%eax
	int      $0x80