input.s

来自「虚地址空间基于文件OS内核源代码和文件」· S 代码 · 共 44 行

.global input_port,input_key_board_routine,input_current_time_routine
input_port:
	movl 0x04(%esp),%edx
	xorl %eax,%eax
	inb (%dx),%al
	ret
input_key_board_routine:
	pushfl
	movl %ds,%ebx
	pushl %ebx
	movl $(0x18),%ebx
	movl %ebx,%ds
	sti
	cmpl $(0x00),%eax
	jne 1f
	call kernel_get_char
	jmp exit_input_key_board
1:	
	cmpl $(0x01),%eax
	jne 2f
	call kernel_get_number
	jmp exit_input_key_board
2:

exit_input_key_board:
	popl %ebx
	movl %ebx,%ds
	popfl
	iret
	
input_current_time_routine:
	movl %ds,%ebx
	pushl %ebx
	movl $(0x18),%ebx
	movl %ebx,%ds
	pushl %eax
	call copy_current_time 
	popl %eax
	popl %ebx
	movl %ebx,%ds
	iret