ex.m51

这是购买周立功的试验箱时候松的源代码。很经典的代码。希望学习单片机的朋友好好研究。短小精悍。有意思。这是第一部分。

BL51 BANKED LINKER/LOCATER V5.03                                                        03/21/2004  14:44:49  PAGE 1


BL51 BANKED LINKER/LOCATER V5.03, INVOKED BY:
D:\KEIL\C51\BIN\BL51.EXE STARTUP.obj, Ex.obj TO EX RAMSIZE (256) CODE (0X8000-0XBFFF) XDATA (0XC000-0XFFFF)


MEMORY MODEL: SMALL


INPUT MODULES INCLUDED:
  STARTUP.obj (?C_STARTUP)
  Ex.obj (EX)


LINK MAP OF MODULE:  EX (?C_STARTUP)


            TYPE    BASE      LENGTH    RELOCATION   SEGMENT NAME
            -----------------------------------------------------

            * * * * * * *   D A T A   M E M O R Y   * * * * * * *
            REG     0000H     0008H     ABSOLUTE     "REG BANK 0"
            IDATA   0008H     0001H     UNIT         ?STACK

            * * * * * * *   C O D E   M E M O R Y   * * * * * * *
                    0000H     8000H                  *** GAP ***
            CODE    8000H     0003H     ABSOLUTE     
            CODE    8003H     0023H     UNIT         ?PR?MAIN?EX
            CODE    8026H     000CH     UNIT         ?C_C51STARTUP



OVERLAY MAP OF MODULE:   EX (?C_STARTUP)


SEGMENT
  +--> CALLED SEGMENT
---------------------
?C_C51STARTUP
  +--> ?PR?MAIN?EX



SYMBOL TABLE OF MODULE:  EX (?C_STARTUP)

  VALUE           TYPE          NAME
  ----------------------------------

  -------         MODULE        ?C_STARTUP
  C:8026H         SEGMENT       ?C_C51STARTUP
  I:0008H         SEGMENT       ?STACK
  C:8000H         PUBLIC        ?C_STARTUP
  D:00E0H         SYMBOL        ACC
  D:00F0H         SYMBOL        B
  D:0083H         SYMBOL        DPH
  D:0082H         SYMBOL        DPL
  N:0000H         SYMBOL        IBPSTACK
  N:0100H         SYMBOL        IBPSTACKTOP
  N:0080H         SYMBOL        IDATALEN
  C:8029H         SYMBOL        IDATALOOP
BL51 BANKED LINKER/LOCATER V5.03                                                      03/21/2004  14:44:49  PAGE 2


  N:0000H         SYMBOL        PBPSTACK
  N:0000H         SYMBOL        PBPSTACKTOP
  N:0000H         SYMBOL        PDATALEN
  N:0000H         SYMBOL        PDATASTART
  N:0000H         SYMBOL        PPAGE
  N:0000H         SYMBOL        PPAGEENABLE
  D:00A0H         SYMBOL        PPAGE_SFR
  D:0081H         SYMBOL        SP
  C:8026H         SYMBOL        STARTUP1
  N:0000H         SYMBOL        XBPSTACK
  N:0000H         SYMBOL        XBPSTACKTOP
  N:0000H         SYMBOL        XDATALEN
  N:0000H         SYMBOL        XDATASTART
  C:8000H         LINE#         92
  C:8026H         LINE#         99
  C:8028H         LINE#         100
  C:8029H         LINE#         101
  C:802AH         LINE#         102
  C:802CH         LINE#         151
  C:802FH         LINE#         155
  -------         ENDMOD        ?C_STARTUP

  -------         MODULE        EX
  C:0000H         SYMBOL        _ICE_DUMMY_
  D:0090H         PUBLIC        P1
  B:0090H.0       PUBLIC        P1_0
  B:0090H.1       PUBLIC        P1_1
  B:0090H.2       PUBLIC        P1_2
  B:0090H.3       PUBLIC        P1_3
  B:0090H.4       PUBLIC        P1_4
  B:0090H.5       PUBLIC        P1_5
  B:0090H.6       PUBLIC        P1_6
  B:0090H.7       PUBLIC        P1_7
  C:8003H         PUBLIC        main
  -------         PROC          MAIN
  C:8003H         LINE#         12
  C:8003H         LINE#         13
  C:8003H         LINE#         14
  C:8003H         LINE#         15
  C:8003H         LINE#         16
  C:8006H         LINE#         17
  C:8006H         LINE#         18
  C:8008H         LINE#         19
  C:800AH         LINE#         20
  C:800CH         LINE#         21
  C:800EH         LINE#         22
  C:8010H         LINE#         23
  C:8012H         LINE#         24
  C:8014H         LINE#         25
  C:8016H         LINE#         27
  C:8016H         LINE#         28
  C:8018H         LINE#         29
  C:801AH         LINE#         30
  C:801CH         LINE#         31
  C:801EH         LINE#         32
  C:8020H         LINE#         33
  C:8022H         LINE#         34
BL51 BANKED LINKER/LOCATER V5.03                                                      03/21/2004  14:44:49  PAGE 3


  C:8024H         LINE#         35
  C:8024H         LINE#         36
  -------         ENDPROC       MAIN
  -------         ENDMOD        EX

Program Size: data=9.0 xdata=0 code=50
LINK/LOCATE RUN COMPLETE.  0 WARNING(S),  0 ERROR(S)