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.globl mouse_interrupt
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mouse_interrupt:
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pushl %eax
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pushl %ebx
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pushl %ecx
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pushl %edx
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push %ds
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movl $0x10,%eax
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mov %ax,%ds !为后面的call做准备
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inb %ax,%ds
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!call readmouse !调用c函数进行细致处理
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!鼠标对应数据寄存器端口是$0x60,通过inb命令将该数据寄存器中
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!存放的一个字节信息读入到寄存器AL中，
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!用户对鼠标的全部信息包含在这一个字节的数据编码里
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xor %eax,%eax
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inb $0x60,%al
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pushl %eax
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call readmouse
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addl $4,%esp
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xor %eax,%eax
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inb $0x60,%al
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pushl %eax
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call readmouse
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addl $4,%esp
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xor %eax,%eax
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inb $0x60,%al !读入鼠标数据
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pushl %eax
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call readmouse
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addl $4,%esp
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xor %eax,%eax
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inb $0x60,%al
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pushl %eax
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call readmouse
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addl $4,%esp
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!在mouse_interupt 处理完中断以后，给8259A发送结束中断(EOI)指令
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movb $0x20,%al
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outb %al,$0xA0
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outb %al,$0x20
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pop %ds
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popl %edx
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popl %ecx
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popl %ebx
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popl %eax
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iret
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