readwriteport.lis

单片机开发资料光盘-双龙-686M.zip

                         .module ReadWritePort.c
                         .area text
 0000                   .dbfile E:\grc\licc\例子10.3.1\ReadWritePort.c
 0000                   .dbfunc s main _main fI
                       ;          achar -> R16
                         .even
 0000                 _main::
 0000                   .dbline 3{
                       ; #include <io8515.h> 
                       ; void main(void)
                       ; {
 0000                   .dbline 5
                       ;  unsigned char  achar;
                       ;  DDRB = 0xFF; 
 0000 8FEF              ldi R24,255
 0002 87BB              out 0x17,R24
 0004                   .dbline 6
                       ;  DDRD = 0x00; 
 0004 2224              clr R2
 0006 21BA              out 0x11,R2
 0008                   .dbline 7
                       ;  PORTD= 0x00; 
 0008 22BA              out 0x12,R2
 000A                   .dbline 8
                       ;  for(;;) 
 000A                 L2:
 000A                   .dbline 9
                       ;     {
 000A                   .dbline 10
                       ;      achar = PIND; 
 000A 00B3              in R16,0x10
 000C                   .dbline 11
                       ;      PORTB = achar; 
 000C 08BB              out 0x18,R16
 000E                   .dbline 12
                       ;     }
 000E                   .dbline 8
 000E                   .dbline 8
 000E FDCF              rjmp L2
 0010                 X0:
 0010                 L1:
 0010 0895              ret
 0012                   .dbline 9}
 0012                   .dbsym r achar 16 c