可10h,0eh,15h,15h ;Err db 10h,10h,0ah,19h ;at db 05h,19h,16h,14h ;stop db 17h,16h,18h,0dh ;hold db 10h,15h,0dh,1ch ;run db 05h,19h,0eh,14h ;step db 1dh,16h,1dh,0eh ;none将二进转16进制
关于x86中断的一些资料 直接系统服务中断：Other 直接系统服务(Direct System Service) INT 00H —“0”作除数 INT 01H —单步中断 INT 02H —非屏蔽中断(NMI) INT 03H —断点中断 INT 04H —算术溢出错误 INT 05H —打印屏幕和BOUND越界 INT 06H —非法指令错误 INT 07H —处理器扩展无效 INT 08H —时钟中断 INT 09H —键盘输入 INT 0BH —通信口(COM2:) INT 0CH
PCI Express Base Specification Revision 2.1 Contents OBJECTIVE OF THE SPECIFICATION.................................................................................... 25 DOCUMENT ORGANIZATION ........................................................
求8255工作 要求8255工作在方式0 编写程序，分段函数的计算 1-50的奇数累加和 8253控制LED 在方式1,A口输入 Portk equ 1fh data segment data segment mov al ,00110101b B口输出,PC6.PC7 Porta equ 1ch x db -25 result dw ? out 87h,al 输出,禁止B口中断 Portk equ 1dh y db ? cn equ 25 mov al,00h Portk equ 1fh P
Contents OBJECTIVE OF THE SPECIFICATION............................................................................... 23 DOCUMENT ORGANIZATION.............................................................................................. 23 DOCUMENT
