7-4-1.asm

书籍8051入门篇

;7-4-1.ASM
$MOD51
	MOV	A,R0	;A=R0
	ADD	A,R7	;A=A+R7
	MOV	P1,A	;P1=A
	MOV	B,A	;B=A
	MOV	SP,A	;SP=A
	MOV	PSW,A	;PSW=A		
;
	MOV	A,00H	;A=(00H)
	ADD	A,07H	;A=A+(07H)
	MOV	90H,A	;(90H)=A
	MOV	0F0H,A	;(F0H),A
	MOV	81H,A	;(81H)=A
	MOV	0D0H,A	;(D0H)=A	
	END