prog1.asm

来自「包括了各种常用的8051单片机的程序」· 汇编 代码 · 共 21 行

;  PROG1 - First Program, Turn on an LED at at P1.0
;
;  This Application Turns on an LED and Loops forever afterward.
;
;  Myke Predko
;  98.01.30
;
;  Hardware Notes:
;  80C520 Running at 1 MHz
;  P1.0 is the LED (to light, it is pulled down)

;  Variable Declarations

;  Mainline
 org 0                          ;  Execution Starts Here
        
  clr    P1.0                   ;  Turn on the LED

Loop:                           ;  Loop Here Forever
  ajmp   Loop