time_delay.lis

atmega128单片机串口调试程序

                        .module time_delay.c
                        .area text(rom, con, rel)
 0000                   .dbfile F:\zhangxuehuan\test\test2\time_delay.c
 0000                   .dbfunc e delay_ms _delay_ms fV
 0000           ;              i -> R20,R21
 0000           ;           time -> R16,R17
                        .even
 0000           _delay_ms::
 0000 0E940000          xcall push_gset1
 0004                   .dbline -1
 0004                   .dbline 5
 0004           ; #include"includes.h"
 0004           ; 
 0004           ; /*time delay sub*/
 0004           ; void delay_ms(int time)
 0004           ; {
 0004                   .dbline 7
 0004           ;     int i;
 0004           ;     for(;time>0;time--)
 0004 0AC0              xjmp L5
 0006           L2:
 0006                   .dbline 8
 0006 4427              clr R20
 0008 5527              clr R21
 000A           L6:
 000A                   .dbline 8
 000A           L7:
 000A                   .dbline 8
 000A 4F5F              subi R20,255  ; offset = 1
 000C 5F4F              sbci R21,255
 000E                   .dbline 8
 000E 4436              cpi R20,100
 0010 E0E0              ldi R30,0
 0012 5E07              cpc R21,R30
 0014 D4F3              brlt L6
 0016           L3:
 0016                   .dbline 7
 0016 0150              subi R16,1
 0018 1040              sbci R17,0
 001A           L5:
 001A                   .dbline 7
 001A 2224              clr R2
 001C 3324              clr R3
 001E 2016              cp R2,R16
 0020 3106              cpc R3,R17
 0022 8CF3              brlt L2
 0024                   .dbline -2
 0024           L1:
 0024 0E940000          xcall pop_gset1
 0028                   .dbline 0 ; func end
 0028 0895              ret
 002A                   .dbsym r i 20 I
 002A                   .dbsym r time 16 I
 002A                   .dbend