prt.s

虚地址空间基于文件OS内核源代码和文件

.global kernel_print_deal_routine

kernel_print_deal_routine:
	pushfl
	sti
	movl %ds,%edx
	pushl %edx
	movl $(0x18),%edx
	movl %edx,%ds

	pushl %ecx
	pushl %ebx

	cmpl $(0x00),%eax
	jne 1f
	call kernel_print_string
	jmp 3f
1:	cmpl $(0x01),%eax
	jne 2f
	call kernel_print_number
	jmp 3f
2:	cmpl $(0x02),%eax
	jne 3f
	call kernel_print
3:	cmpl $(0x03),%eax
	jne 4f
	call set_print_thread_id
4:
	popl %eax
	popl %eax
	popl %eax
	movl %eax,%ds
	
	popfl

	iret