delay.lis

mega128+VS1003做的mp3的程序 可以用WINAVR编译

                        .module delay.c
                        .area text(rom, con, rel)
 0000                   .dbfile E:\software\MP3程序\Delay\delay.c
 0000                   .dbfunc e delay_1us _delay_1us fV
                        .even
 0000           _delay_1us::
 0000                   .dbline -1
 0000                   .dbline 8
 0000           ; #include <iom64v.h>
 0000           ; #include <macros.h>
 0000           ; /*-----------------------------------------------------------------------
 0000           ; 延时函数
 0000           ; 系统时钟：8M
 0000           ; -----------------------------------------------------------------------*/
 0000           ; void delay_1us(void)
 0000           ; {;}
 0000                   .dbline 8
 0000                   .dbline -2
 0000           L1:
 0000                   .dbline 0 ; func end
 0000 0895              ret
 0002                   .dbend
 0002                   .dbfunc e delay_nus _delay_nus fV
 0002           ;              i -> R20,R21
 0002           ;              n -> R22,R23
                        .even
 0002           _delay_nus::
 0002 0E940000          xcall push_gset2
 0006 B801              movw R22,R16
 0008                   .dbline -1
 0008                   .dbline 10
 0008           ; void delay_nus(unsigned int n)       //N us延时函数
 0008           ;   {
 0008                   .dbline 11
 0008           ;    unsigned int i=0;
 0008 4427              clr R20
 000A 5527              clr R21
 000C                   .dbline 12
 000C           ;    for (i=0;i<n;i++)
 000C 03C0              xjmp L6
 000E           L3:
 000E                   .dbline 13
 000E F8DF              xcall _delay_1us
 0010           L4:
 0010                   .dbline 12
 0010 4F5F              subi R20,255  ; offset = 1
 0012 5F4F              sbci R21,255
 0014           L6:
 0014                   .dbline 12
 0014 4617              cp R20,R22
 0016 5707              cpc R21,R23
 0018 D0F3              brlo L3
 001A                   .dbline -2
 001A           L2:
 001A 0E940000          xcall pop_gset2
 001E                   .dbline 0 ; func end
 001E 0895              ret
 0020                   .dbsym r i 20 i
 0020                   .dbsym r n 22 i
 0020                   .dbend
 0020                   .dbfunc e delay_1ms _delay_1ms fV
 0020           ;              i -> R16,R17
                        .even
 0020           _delay_1ms::
 0020                   .dbline -1
 0020                   .dbline 16
 0020           ;    delay_1us();
 0020           ;   }
 0020           ; void delay_1ms(void)                 //1ms延时函数
 0020           ;   {
 0020                   .dbline 18
 0020 0027              clr R16
 0022 1127              clr R17
 0024 02C0              xjmp L11
 0026           L8:
 0026                   .dbline 18
 0026           L9:
 0026                   .dbline 18
 0026 0F5F              subi R16,255  ; offset = 1
 0028 1F4F              sbci R17,255
 002A           L11:
 002A                   .dbline 18
 002A           ;    unsigned int i;
 002A           ;    for (i=0;i<1140;i++);
 002A 0437              cpi R16,116
 002C E4E0              ldi R30,4
 002E 1E07              cpc R17,R30
 0030 D0F3              brlo L8
 0032                   .dbline -2
 0032           L7:
 0032                   .dbline 0 ; func end
 0032 0895              ret
 0034                   .dbsym r i 16 i
 0034                   .dbend