From c3ab03ddcf08c0e57fe7b0221fd48c746c20fd0e Mon Sep 17 00:00:00 2001
From: pjsk6rqfy <747282718@qq.com>
Date: Fri, 1 Jul 2022 09:09:21 +0800
Subject: [PATCH] ADD file via upload

---
 mouse.s | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 mouse.s

diff --git a/mouse.s b/mouse.s
new file mode 100644
index 0000000..558eb08
--- /dev/null
+++ b/mouse.s
@@ -0,0 +1,49 @@
+.globl mouse_interrupt
+mouse_interrupt:
+    pushl %eax
+    pushl %ebx
+    pushl %ecx
+    pushl %edx
+    push %ds
+    movl $0x10,%eax
+    mov %ax,%ds         !为后面的call做准备
+    inb %ax,%ds
+    !call readmouse      !调用c函数进行细致处理
+
+!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
+!存放的一个字节信息读入到寄存器AL中，
+!用户对鼠标的全部信息包含在这一个字节的数据编码里
+xor %eax,%eax 
+        inb $0x60,%al
+        pushl %eax
+        call readmouse
+        addl $4,%esp
+
+xor %eax,%eax 
+        inb $0x60,%al
+        pushl %eax
+        call readmouse
+        addl $4,%esp
+
+xor %eax,%eax 
+        inb $0x60,%al          !读入鼠标数据
+        pushl %eax
+        call readmouse
+        addl $4,%esp
+
+xor %eax,%eax 
+        inb $0x60,%al
+        pushl %eax
+        call readmouse
+        addl $4,%esp   
+!在mouse_interupt 处理完中断以后，给8259A发送结束中断(EOI)指令
+    movb $0x20,%al
+    outb %al,$0xA0
+    outb %al,$0x20
+
+    pop %ds
+    popl %edx
+    popl %ecx
+    popl %ebx     
+    popl %eax
+    iret
\ No newline at end of file