ascii conv.lst

Proteus在MCS-51％26ARM7系统中的应用百例 Proteus在MCS-51％26ARM7系统中的应用百例

A51 MACRO ASSEMBLER  ASCII_CONV                                                           07/20/2006 17:56:15 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN ASCII Conv.OBJ
ASSEMBLER INVOKED BY: E:\Keil\C51\BIN\A51.EXE ASCII Conv.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

  0030                 1     RESULT          EQU             30H
0000                   2                 ORG         00H
0000                   3     START:
0000 741A              4                     MOV     A,#1AH
0002 1107              5                     CALL    BINTOHEX
0004 020004            6                     LJMP    $
0007                   7     BINTOHEX:
0007 90001A            8                 MOV         DPTR,#ASCIITAB
000A F5F0              9                 MOV         B,A                     ;暂存A
000C C4               10                 SWAP        A
000D 540F             11                 ANL         A,#0FH                  ;取高四位
000F 93               12                 MOVC        A,@A+DPTR           ;查ASCII表      
0010 F530             13                             MOV     RESULT, A
0012 E5F0             14                             MOV     A,B                     ;恢复A
0014 540F             15                             ANL     A,#0FH                  ;取低四位
0016 93               16                             MOVC    A,@A+DPTR               ;查ASCII表
0017 F531             17                             MOV     RESULT+1,A
0019 22               18                             RET
001A                  19     ASCIITAB:
001A 30313233         20                 DB          '0123456789ABCDEF'      ;定义数字对应的ASCII表
001E 34353637                
0022 38394142                
0026 43444546                
                      21                     END
A51 MACRO ASSEMBLER  ASCII_CONV                                                           07/20/2006 17:56:15 PAGE     2

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


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

ASCIITAB . . . . .  C ADDR   001AH   A   
B. . . . . . . . .  D ADDR   00F0H   A   
BINTOHEX . . . . .  C ADDR   0007H   A   
RESULT . . . . . .  N NUMB   0030H   A   
START. . . . . . .  C ADDR   0000H   A   


REGISTER BANK(S) USED: 0 


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