final class FinalVar
{
	//CPU的工作狀態，0為核心態，1為用戶態
	public static final byte CPUMODE_USER = 1;
	public static final byte CPUMODE_SYS = 0;
	
	//CPU的C條件寄存器
	public static final char CPUC_T = 'T';
	public static final char CPU_F = 'F';
	
	//通道寄存器狀態，1為忙，0為空閑
	public static final byte CHST_STAT_BUSY = 1;
	public static final byte CHST_STAT_FREE = 0;
	
	//內存容量
	public static final int MM_MAX_CAP = 1200;
	
	//內存總頁數
	public static final int MM_PAGE_MAXCAP = 30;
	
	//內存單位狀態，1為已分配，0為未分配
	public static final byte MM_MALLOCED = 1;
	public static final byte MM_FREE = 0;
	
	//內存讀模式,1為讀一行,2為讀一頁
	public static final byte MM_READ_WORD = 1;
	public static final byte MM_READ_PAGE = 2;
	
	//磁盤容量
	public static final int DISK_MAX_CAP = 4000;
	
	//磁盤總頁數
	public static final int DISK_PAGE_MAXCAP = 100;
	
	//磁盤單位狀態，1為已分配，0為未分配
	public static final byte DISK_MALLOCED = 1;
	public static final byte DISK_FREE = 0;
	
	//鍵盤緩沖區起始地址
	public static final byte KB_BUFFER_ADDR = 29;
	
	//鍵盤緩沖區大小
	public static final byte KB_BUFFER_SIZE = 1;
	
	//打印機緩沖區起始地址
	public static final byte PRT_BUFFER_ADDR = 25;
	
	//打印機緩沖區大小
	public static final byte PRT_BUFFER_SIZE = 4;
	
	//輸入井起始地址
	public static final byte IN_BUFFER_ADDR = 0;
	
	//輸出井起始地址
	public static final byte OUT_BUFFER_ADDR = 90;
	
	//輸入井和輸出井大小
	public static final byte SPOOLING_BUFFER_SIZE = 10;
	
	//進程狀態，1為運行，2為就緒，3為阻塞
	public static final byte PCB_RUN = 1;
	public static final byte PCB_READY = 2;
	public static final byte PCB_BLOCK = 3;
	
//	剛剛添加；
//	作業狀態，未被調度(-1)；
	public static final byte JCB_NOT_START = -1;

// 剛剛添加;
//	啟動通道2的工作方式，1為表示從鍵盤緩存區讀到輸入井或從內存程序區讀到輸出井，0表示表示從輸入井讀到內存程序區或從輸出井讀到打印緩存區；
	public static final byte CHST3_READ = 1;
	public static final byte CHST3_WRITE = 0;
}