dstoes.asm

汇编语言-王爽 源代码 加 卜艳萍版源代码

			dat	    SEGMENT
				    source_buffer	DB 40 DUP('A')
			dat	    ENDS
			extra	SEGMENT
				    dest_buffer	DB 40 DUP(?)
			extra	ENDS
			code	SEGMENT
				    ASSUME	CS:code, DS:dat, ES:extra
		start:
					MOV		AX, dat
					MOV		DS, AX
					MOV		AX, extra			;CS不用赋值
					MOV		ES, AX
					LEA		SI, source_buffer
					LEA		DI, dest_buffer
					CLD
					MOV		CX, 40
					REP		MOVSB
					MOV		AX, 4C00H
					INT		21H
			code	ENDS
					END start