project.lst

汇编小程序

A51 MACRO ASSEMBLER  PROJECT                                                              07/08/2012 21:14:42 PAGE     1


MACRO ASSEMBLER A51 V8.02a
OBJECT MODULE PLACED IN project.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE project.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1                     ORG 0000H
0000 0130              2                                     AJMP MAIN
0030                   3                                     ORG 0030H
0030 74FB              4     MAIN:           MOV A,#0FBH                     ;累加器A放入0FBH
0032 7824              5                     MOV R0,#024H            ;寄存器R0放入初始值024H
0034 F4                6                                     CPL A                           ;累加器A求反
0035 F580              7                                     MOV P0,A                        ;把累加器A的内容放入P0口
0037 74FB              8                                     MOV A,#0FBH                     ;累加器A放入初始值0FBH
0039 48                9                                     ORL A,R0                        ;寄存器R0与累加器A相‘或’