8255.m51

用keil51编写的可编程通用并行接口8255键盘按键识别程序,键盘3*8格式,采用行扫描方式,c语言编写

BL51 BANKED LINKER/LOCATER V5.12                                                        09/08/2007  21:53:12  PAGE 1


BL51 BANKED LINKER/LOCATER V5.12, INVOKED BY:
F:\LC\SOFTWARE\KEIL\UV2\C51\BIN\BL51.EXE STARTUP.obj, KEYBOARD.obj TO 8255


MEMORY MODEL: SMALL


INPUT MODULES INCLUDED:
  STARTUP.obj (?C_STARTUP)
  KEYBOARD.obj (KEYBOARD)


LINK MAP OF MODULE:  8255 (?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"
            DATA    0008H     0002H     UNIT         ?DT?KEYBOARD
            IDATA   000AH     0001H     UNIT         ?STACK

            * * * * * * *   C O D E   M E M O R Y   * * * * * * *
            CODE    0000H     0003H     ABSOLUTE     
            CODE    0003H     0064H     UNIT         ?PR?CALC_KEY?KEYBOARD
            CODE    0067H     000DH     UNIT         ?PR?DELAY20MS?KEYBOARD
            CODE    0074H     000CH     UNIT         ?C_C51STARTUP
            CODE    0080H     000BH     UNIT         ?PR?MAIN?KEYBOARD
            CODE    008BH     0001H     UNIT         ?PR?DISPLAY?KEYBOARD



OVERLAY MAP OF MODULE:   8255 (?C_STARTUP)


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

?PR?MAIN?KEYBOARD
  +--> ?PR?CALC_KEY?KEYBOARD

?PR?CALC_KEY?KEYBOARD
  +--> ?PR?DELAY20MS?KEYBOARD
  +--> ?PR?DISPLAY?KEYBOARD



SYMBOL TABLE OF MODULE:  8255 (?C_STARTUP)

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

  -------         MODULE        ?C_STARTUP
  C:0074H         SEGMENT       ?C_C51STARTUP
BL51 BANKED LINKER/LOCATER V5.12                                                      09/08/2007  21:53:12  PAGE 2


  I:000AH         SEGMENT       ?STACK
  C:0000H         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:0077H         SYMBOL        IDATALOOP
  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:0074H         SYMBOL        STARTUP1
  N:0000H         SYMBOL        XBPSTACK
  N:0000H         SYMBOL        XBPSTACKTOP
  N:0000H         SYMBOL        XDATALEN
  N:0000H         SYMBOL        XDATASTART
  C:0000H         LINE#         92
  C:0074H         LINE#         99
  C:0076H         LINE#         100
  C:0077H         LINE#         101
  C:0078H         LINE#         102
  C:007AH         LINE#         151
  C:007DH         LINE#         155
  -------         ENDMOD        ?C_STARTUP

  -------         MODULE        KEYBOARD
  C:0000H         SYMBOL        _ICE_DUMMY_
  D:0008H         PUBLIC        key_row
  C:0080H         PUBLIC        main
  D:0009H         PUBLIC        key_column
  C:0003H         PUBLIC        calc_key
  C:0067H         PUBLIC        delay20ms
  C:008BH         PUBLIC        display
  -------         PROC          DISPLAY
  C:008BH         LINE#         19
  C:008BH         LINE#         20
  C:008BH         LINE#         22
  -------         ENDPROC       DISPLAY
  -------         PROC          DELAY20MS
  -------         DO            
  D:0007H         SYMBOL        i
  D:0006H         SYMBOL        j
  D:0005H         SYMBOL        k
  -------         ENDDO         
  C:0067H         LINE#         24
  C:0067H         LINE#         25
  C:0067H         LINE#         27
  C:0069H         LINE#         28
  C:006BH         LINE#         29
  C:0073H         LINE#         30
BL51 BANKED LINKER/LOCATER V5.12                                                      09/08/2007  21:53:12  PAGE 3


  -------         ENDPROC       DELAY20MS
  -------         PROC          CALC_KEY
  -------         DO            
  D:0005H         SYMBOL        tdata
  D:0004H         SYMBOL        i
  D:0007H         SYMBOL        j
  -------         ENDDO         
  C:0003H         LINE#         32
  C:0003H         LINE#         33
  C:0003H         LINE#         36
  C:0009H         LINE#         37
  C:000CH         LINE#         38
  C:000FH         LINE#         39
  C:0012H         LINE#         40
  C:0014H         LINE#         41
  C:0017H         LINE#         42
  C:0019H         LINE#         43
  C:0035H         LINE#         44
  C:0039H         LINE#         45
  C:003BH         LINE#         46
  C:004CH         LINE#         47
  C:004FH         LINE#         48
  C:0052H         LINE#         49
  C:0057H         LINE#         50
  C:005AH         LINE#         52
  C:005AH         LINE#         53
  C:005EH         LINE#         54
  C:0062H         LINE#         56
  C:0062H         LINE#         57
  C:0066H         LINE#         58
  C:0066H         LINE#         59
  C:0066H         LINE#         60
  -------         ENDPROC       CALC_KEY
  -------         PROC          MAIN
  C:0080H         LINE#         62
  C:0080H         LINE#         63
  C:0080H         LINE#         64
  C:0086H         LINE#         65
  C:0086H         LINE#         66
  C:0089H         LINE#         67
  -------         ENDPROC       MAIN
  -------         ENDMOD        KEYBOARD

Program Size: data=11.0 xdata=0 code=140
LINK/LOCATE RUN COMPLETE.  0 WARNING(S),  0 ERROR(S)