ja01.asm

MCS51单片机的宏汇编器源程序

$DB  EP
;$PRINT(C:\Keil\C51\EXAMPLES\ASM\ja01.lst)	
;$oj(C:\Keil\C51\EXAMPLES\ASM\ja01.obj)
 	CR EQU 13
	LF EQU 10
sf
	PUBLIC START
SAMP    SEGMENT CODE

        RSEG SAMP
START:  MOV SCON, #52H
	MOV TCON, #0D2H
	MOV TH1, #13
	SETB TR1
LOAD:   MOV DPTR, #MSG
LOOP: 	CLR A
	MOVC A,@A+DPTR
	CJNE A,#LF,MORE
 	SJMP LOAD
 MORE:  MOV A,DPL
	INC A
	MOV DPL,A
	JNC LOOP
	INC DPH
	SJMP LOOP
MSG: DB "MESSAGE",CR,LF

	END