1.3.1.lst

零基础单片机C语言设计全套教程

A51 MACRO ASSEMBLER  1_3_1                                                                09/04/2008 10:59:03 PAGE     1


MACRO ASSEMBLER A51 V8.00d
OBJECT MODULE PLACED IN 1.3.1.OBJ
ASSEMBLER INVOKED BY: C:\Program Files\keil\C51\BIN\A51.EXE 1.3.1.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0200                   1                             ORG             0200H           ;汇编程序起始命令
0200 EC                2                             MOV             A,R4                    ;低字节送入累加器A
0201 F4                3                             CPL             A                       ;取反
0202 2401              4                             ADD             A,#01H          ;加1
0204 F521              5                             MOV             21H,A           ;将结果送入地址21H
0206 EB                6                             MOV             A,R3                    ;高字节送入累加器A
0207 F4                7                             CPL             A                       ;取反
0208 3400              8                             ADDC    A,#00H          ;加进位位
020A F520              9                             MOV             20H,A           ;将结果送入地址20H
                      10                             END                                     ;程序结束
A51 MACRO ASSEMBLER  1_3_1                                                                09/04/2008 10:59:03 PAGE     2

SYMBOL TABLE LISTING
------ ----- -------


N A M E             T Y P E  V A L U E   ATTRIBUTES



REGISTER BANK(S) USED: 0 


ASSEMBLY COMPLETE.  0 WARNING(S), 0 ERROR(S)