jianc.asm

来自「WAVE6000编写的常用的程序 包括键盘 通信 数据转换」· 汇编 代码 · 共 63 行

org 0000h
ajmp main
main:mov sp,#60h
    l:acall key
      sjmp l

key:
     mov p0,#0ffh
     mov p0,#0f0h
     mov a,p0
     anl a,#0f0h
     cjne a,#0f0h,go
     sjmp return
  go:   acall delay
     mov p0,#0f0h
     mov a,p0
     anl a,#0f0h
     cjne a,#0f0h, go1
      sjmp return

     mov r5,#     
      
      
   
   
   
   
   
   
   
   
 ke1: clr Fo
     mov p0,#0ffh
     mov p0,#0f0h
     mov a,p0
     anl a,#0f0h
     cjne 


ret  
   
   
   
   
   
   
   
   

 delay: mov      r7,    #18h
d1:    mov      r6,    #0ffh

       djnz     r6,   $
       djnz     r7,   d1
       ret

    sjmp loop