汇编程序12:实验4
1 assume cs:code 2 //所谓赋值是从段地址首到程序返回,属于段的应用,段地址开始CS:IP 3 code segment 4 5 mov ax,cs 6 mov ds,ax 7 mov ax,0020h 8 mov es,ax 9 mov bx,0 10 sub cx,5 //结束指令占5字节,减去返回指令即为需赋值的地址段 11 s:mov al,[bx] 12 mov es:[bx],al 13 inc bx 14 loop s 15 16 mov ax,4c00h 17 int 21h 18 19 code ends 20 21 end