5-5-1.asm

51单片机开发与应用技术详解(珍藏版)PPT及源码

			ORG		1000H
HEX1:		EQU		20H				;赋值伪指令
HEX2:		EQU		21H
HTOAS:		MOV		A,HEX1
			ANL		A,#00001111B
			ADD		A,#03H			;变址调整
			MOVC	A,@A+PC
			MOV		HEX2,A
			RET
DATA:		DB		30H,31H,32H,33H	;ASCII码表格
			DB		34H,35H,36H,37H
			DB		38H,39H,40H,41H
			DB		42H,43H,44H,45H
			END