.section .data
output:
    .asciz    "TIME IS OUT , TERMINATE!"
.section .bss
    .lcomm buffer,    100
.section .text
.globl main
main:
        #检测是否启动设备
NotStart:    inb     $0x72 ,  %al
        testb     $0x1  ,  %al
        jz    NotStart
        
        #设定循环计算器,每次传送4个字节
        movl    $25,  %ecx 
        movl    $buffer,%ebx
        movl    $1000,    %edx #我假设循环1000次为1秒
        #检测设备准备就绪,每次读取时都要检测
READ:
NotReady:
        decl    %edx
        testl    $1    ,  %edx
        jz    TIMEOUT
        movl    $0    ,  %eax
        inb    $0x71 ,     %al #从71H端口读取状态
        testb    $0x1  ,  %al # 1 准备就绪
        jz    NotReady    
        #读取数据信息
        inl    $0x70 ,  %eax
        movl    %eax   , %ebx
        incl    %ebx
        loop    READ
        jmp    EXIT
TIMEOUT:    
        pushl    $output
        call    printf
        addl    $4,    %esp
EXIT:
        movl     $1,    %eax
        movl    $0,    %ebx
        int    $0x80