setflashport.asm

来自「基于单片机Aduc841的调试程序」· 汇编 代码 · 共 55 行

/******************************************************************
              汇编语言模拟SETFLASHPORT程序 
******************************************************************/      
/*****************************************************************************
*  =============================================================
*
*****************************************************************************/ 

PUBLIC	_SETFLASHPORT
SETFLASHPORT_ROUTINES  SEGMENT  CODE
RSEG  SETFLASHPORT_ROUTINES
DPP      DATA  084H  ;DATA POINTER - PAGE BYTE

_SETFLASHPORT:
    
   
    MOV DPP,R6;	
    MOV DPH,R7;
    MOV DPL,R4;
    MOV A,R5;
    MOVX @DPTR,A;
    NOP;
   	NOP;
    NOP;
    NOP;
    NOP;
    NOP;
	NOP;
	NOP;
	NOP;
	NOP;
   	NOP;
    NOP;
	NOP;
	NOP;
    NOP;
	NOP;
    NOP;
   	NOP;
	NOP;
    NOP;
    NOP;
    NOP;
	NOP;
	NOP;
	NOP;
    MOV DPP,#00H;
    MOV DPH,#00H;
	MOV DPL,#00H;
    RET
    END