.module _3.c
                        .area text(rom, con, rel)
 0000                   .dbfile E:\16實驗程序\延時試驗\3.c
 0000                   .dbfunc e s_ms _s_ms fV
 0000           ;             aa -> R20,R21
 0000           ;             ms -> R16,R17
                        .even
 0000           _s_ms::
 0000 4A93              st -y,R20
 0002 5A93              st -y,R21
 0004                   .dbline -1
 0004                   .dbline 6
 0004           ; #include "iom16v.h"  
 0004           ; 
 0004           ; //延時函數
 0004           ; //在16MHz時產生1ms的延時
 0004           ; void s_ms(unsigned int ms)
 0004           ; {
 0004                   .dbline 8
 0004           ;     unsigned int aa;
 0004           ;       for(;ms>=1;ms--)
 0004 0CC0              xjmp L5
 0006           L2:
 0006                   .dbline 9
 0006           ;       {
 0006                   .dbline 10
 0006           ;       for(aa=0;aa<=2000;aa++)
 0006 4427              clr R20
 0008 5527              clr R21
 000A 02C0              xjmp L9
 000C           L6:
 000C                   .dbline 11
 000C           ;       {;}
 000C                   .dbline 11
 000C                   .dbline 11
 000C           L7:
 000C                   .dbline 10
 000C 4F5F              subi R20,255  ; offset = 1
 000E 5F4F              sbci R21,255
 0010           L9:
 0010                   .dbline 10
 0010 80ED              ldi R24,2000
 0012 97E0              ldi R25,7
 0014 8417              cp R24,R20
 0016 9507              cpc R25,R21
 0018 C8F7              brsh L6
 001A           X0:
 001A                   .dbline 12
 001A           ;       }
 001A           L3:
 001A                   .dbline 8
 001A 0150              subi R16,1
 001C 1040              sbci R17,0
 001E           L5:
 001E                   .dbline 8
 001E 0130              cpi R16,1
 0020 E0E0              ldi R30,0
 0022 1E07              cpc R17,R30
 0024 80F7              brsh L2
 0026           X1:
 0026                   .dbline -2
 0026           L1:
 0026                   .dbline 0 ; func end
 0026 5991              ld R21,y+
 0028 4991              ld R20,y+
 002A 0895              ret
 002C                   .dbsym r aa 20 i
 002C                   .dbsym r ms 16 i
 002C                   .dbend
 002C                   .dbfunc e main _main fI
                        .even
 002C           _main::
 002C                   .dbline -1
 002C                   .dbline 16
 002C           ; }     
 002C           ;  
 002C           ; main()
 002C           ;  {
 002C                   .dbline 17
 002C           ;  DDRD=0xff;
 002C 8FEF              ldi R24,255
 002E 81BB              out 0x11,R24
 0030 0AC0              xjmp L12
 0032           L11:
 0032                   .dbline 20
 0032           ;  //在端口d產生500Hz的信號
 0032           ;  while(1)
 0032           ;    {
 0032                   .dbline 21
 0032           ;    PORTD=0xff;
 0032 8FEF              ldi R24,255
 0034 82BB              out 0x12,R24
 0036                   .dbline 22
 0036           ;    s_ms(50);
 0036 02E3              ldi R16,50
 0038 10E0              ldi R17,0
 003A E2DF              xcall _s_ms
 003C                   .dbline 23
 003C           ;    PORTD=0x00;
 003C 2224              clr R2
 003E 22BA              out 0x12,R2
 0040                   .dbline 24
 0040           ;    s_ms(50);
 0040 02E3              ldi R16,50
 0042 10E0              ldi R17,0
 0044 DDDF              xcall _s_ms
 0046                   .dbline 25
 0046           ;    }
 0046           L12:
 0046                   .dbline 19
 0046 F5CF              xjmp L11
 0048           X2:
 0048                   .dbline -2
 0048           L10:
 0048                   .dbline 0 ; func end
 0048 0895              ret
 004A                   .dbend
 004A           ;  }