用74HC138控制列 74HC595控制行实现24*24的点阵汉字显示 仿真.....

SH_CP  bit P0.0
ST_CP  bit P0.1
DDS     bit P0.2
MR     bit P0.3
OE     bit P0.4
E1     bit P1.3
E2    bit P1.4
E3     bit P1.5
KEY1   bit P2.0
KEY2   bit P2.1
KEY3   bit P2.2
    ORG   0000H
    AJMP  MAIN
    ORG  0030H
MAIN:  MOV  55H,#06
       MOV  SP,#64H
MAIN3: MOV  DPTR,#TAB
       CLR  MR                             
    CLR  ST_CP
    NOP  
    SETB ST_CP
    SETB MR
    CLR  OE
    MOV  R4,#216
MAIN1: CLR E1
    CLR E2
    CLR E3
    MOV R5,55H
MAIN2: JB   KEY2,S_STOP
       JNB  KEY2,$
    CPL  0EH
S_STOP: JB  0EH,MAIN1
        JB  KEY1,JIAN
  JNB KEY1,$
  CPL 0FH
JIAN:   JB   KEY3,Q_OUT
        JNB  KEY3,$
  DEC  55H
  MOV  R5,55H
  CJNE R5,#0,Q_OUT
  MOV  55H,#06H
Q_OUT:  MOV  R2,#0
        MOV  R1,#0
PANT:   MOV  54H,#03
     MOV  53H,#08
GG:     MOV  50H,#08
FF:     MOV  A,R1
        ANL  A,#07H
  MOV  P1,A
  INC  R1
  ACALL GC
  MOV  A,53H
  ORL  P1,A
  ACALL MS
  DJNZ  50H,FF
  MOV   A,53H
  RL    A
  MOV   53H,A
  DJNZ  54H,GG
  DJNZ  R5,MAIN2
  JB    0FH,M_STOP
  INC   DPTR
  INC   DPTR
  INC   DPTR
  DJNZ  R4,MAIN1
  AJMP  MAIN3
M_STOP: AJMP  MAIN1
GC:     SETB  MR
        SETB  OE
  MOV   51H,#03
AAA:    MOV   A,R2
        MOVC  A,@A+DPTR
  MOV   R3,#8
AA:     RLC   A
        MOV   DDS,C
  CLR   SH_CP
  NOP
  SETB  SH_CP
  DJNZ  R3,AA
  CLR   ST_CP
  NOP
  SETB  SH_CP
  INC   R2
  DJNZ  51H,AAA
  CLR   OE
  RET   
MS:     MOV  R6,#5
DELAY:  MOV  R7,#190
        DJNZ R7,$
  DJNZ R6,DELAY
  RET
  TAB:
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;"",0
DB    00H,00H,00H,00H,00H, 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H
DB    00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;"",0
DB     00H,00H,00H,80H,03H;1CH,0C0H,03H,1EH,60H,03H,1BH,20H,80H,19H,20H,0C0H,18H,20H,60H,18H,60H,38H,18H;
DB     0E0H,3FH,18H,0C0H,1FH,1FH,80H,07H,1FH,00H,00H,00H;"2",1
DB     00H,00H,00H,00H,0C0H,00H,00H,0F0H,00H,00H,0B8H,00H,00H,8EH,00H,00H,87H,10H,0C0H,81H,10H,0E0H,0FFH,1FH;
DB     0F0H,0FFH,1FH,0F0H,0FFH,1FH,00H,80H,10H,00H,80H,10H;"4",1
DB     00H,00H,00H,00H,42H,00H,00H,66H,00H,00H,66H,00H,00H,7EH,00H,00H,3CH,00H,0C0H,0FFH,03H,0C0H,0FFH,03H;
DB     00H,3CH,00H,00H,7EH,00H,00H,66H,00H,00H,66H,00H;"*",2
DB     00H,00H,00H,80H,03H,1CH,0C0H,03H,1EH,60H,03H,1BH,20H,80H,19H,20H,0C0H,18H,20H,60H,18H,60H,38H,18H;
DB     0E0H,3FH,18H,0C0H,1FH,1FH,80H,07H,1FH,00H,00H,00H;"2",2
DB     00H,00H,00H,00H,0C0H,00H,00H,0F0H,00H,00H,0B8H,00H,00H,8EH,00H,00H,87H,10H,0C0H,81H,10H,0E0H,0FFH,1FH;
DB     0F0H,0FFH,1FH,0F0H,0FFH,1FH,00H,80H,10H,00H,80H,10H;"4",3
DB     00H,00H,00H,00H,00H,00H,00H,00H,40H,00H,00H,60H,00H,00H,78H,00H,00H,38H,00H,0FEH,01H,00H,0FEH,01H;
DB     00H,84H,04H,00H,84H,1CH,00H,84H,38H,0FCH,87H,30H,0FCH,87H,00H,24H,84H,04H,20H,84H,1CH,20H,84H,38H;
DB     20H,84H,30H,20H,0FEH,01H,20H,0FEH,05H,30H,0FEH,0DH,30H,00H,38H,20H,00H,38H,00H,00H,20H,00H,00H,00H;"点"，4
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,0F8H,0FFH,7FH,0F8H,0FFH,7FH,08H,02H,01H,88H,07H,03H,0F8H,8DH,03H;
DB     78H,0F8H,01H,38H,0F0H,03H,20H,10H,02H,20H,1EH,02H,0E0H,1FH,02H,0F8H,13H,02H,7CH,10H,02H,2CH,0FFH,7FH;
DB     24H,0FFH,7FH,20H,11H,7EH,20H,10H,02H,20H,10H,02H,30H,18H,03H,30H,08H,01H,20H,00H,01H,00H,00H,00H;"阵"，5
DB     00H,00H,00H,00H,02H,00H,00H,02H,00H,00H,02H,00H,04H,02H,00H,3CH,0FEH,1FH,38H,0FEH,1FH,30H,0EH,5CH;
DB     00H,0CH,46H,00H,06H,43H,00H,0FH,61H,0FCH,1BH,20H,0FCH,79H,30H,18H,0E8H,19H,08H,88H,0FH,08H,08H,0EH;
DB     08H,88H,0FH,0FCH,0E9H,1BH,0FCH,0F9H,30H,00H,39H,30H,00H,09H,70H,00H,01H,60H,00H,01H,20H,00H,00H,20H;"设"，6
DB     00H,00H,00H,00H,04H,00H,00H,04H,00H,00H,04H,00H,04H,04H,00H,1CH,0FCH,3FH,38H,0FCH,3FH,38H,04H,1CH;
DB     30H,00H,0EH,00H,04H,07H,00H,84H,01H,00H,84H,00H,00H,04H,00H,00H,04H,00H,0FCH,0FFH,7FH,0FCH,0FFH,7FH;
DB     0FCH,0FFH,7FH,00H,04H,00H,00H,04H,00H,00H,04H,00H,00H,06H,00H,00H,02H,00H,00H,02H,00H,00H,00H,00H;"计"，7
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;"",8
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;
DB     00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H;"",8
END