做存储器扩展实验,遇到要将扩展内存单元全部清零,请高手指教一二!存储器扩展程序如下:
STACK SEGMENT STACK
DW 64 DUP(?)
STACK ENDS
DATA SEGMENT
TABLE DB 0AH DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START: MOV DS,AX
MOV CX,000AH
MOV BX,OFFSET TABLE
MOV SI,0000H
A1: MOV AL,[BX]
PUSH DS
PUSH AX
MOV AX,2000H
MOV DS,AX
POP AX
MOV [SI],AL
POP DS
INC SI
INC BX
LOOP A1
A2: JMP A2
CODE ENDS
END START