📄 8x8 matrix led.lst
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A51 MACRO ASSEMBLER 8X8_MATRIX_LED 07/31/2006 19:17:04 PAGE 1
MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN 8x8 Matrix LED.OBJ
ASSEMBLER INVOKED BY: e:\Program Files\Keil\C51\BIN\A51.EXE 8x8 Matrix LED.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
0000 1 ORG 00H
0000 802E 2 JMP MAIN
000B 3 ORG 0BH
000B 020087 4 LJMP INTS_T0
0030 5 ORG 30H
0030 C2AF 6 MAIN: CLR EA
0032 7A00 7 MOV R2,#0
0034 7910 8 MOV R1,#16 ;16个字符
0036 7840 9 MOV R0,#40H
0038 9000C4 10 MOV DPTR,#TAB ;把全部字符复制到40H
003B 11 MOVEDATA:
003B EA 12 MOV A,R2
003C 93 13 MOVC A,@A+DPTR
003D F6 14 MOV @R0,A
003E 0A 15 INC R2
003F 08 16 INC R0
0040 D9F9 17 DJNZ R1,MOVEDATA
0042 758901 18 MOV TMOD,#01H ;定时器0工作方式1
0045 758AFF 19 MOV TL0,#0FFH ;置计数初值
0048 758C3C 20 MOV TH0,#03CH ;0FFFFH-3CAFH=50000,50MS
004B 7F05 21 MOV R7,#5 ;软件计数器，循环5次
004D D2A9 22 SETB ET0 ;允许T0中断
004F C2AB 23 CLR ET1 ;禁止T1中断
0051 D2AF 24 SETB EA
0053 D28C 25 SETB TR0
0055 759800 26 MOV SCON,#00H ;串行口工作模式0
0058 C2B2 27 CLR P3.2
005A 758160 28 MOV SP,#60H
005D 7B80 29 MOV R3,#080H ;第一行
005F 7A08 30 A0: MOV R2,#08H
0061 7840 31 MOV R0,#40H
0063 9000C4 32 LOOP: MOV DPTR,#TAB ;字符首地址
0066 7902 33 MOV R1,#2
0068 EB 34 MOV A,R3
0069 03 35 RR A ;行码右移一位转下一行
006A FB 36 MOV R3,A
006B F599 37 MOV SBUF,A ;发送行码
006D 3099FD 38 WAIT1: JNB TI,WAIT1 ;等待一帧发送完
0070 C299 39 CLR TI
0072 E6 40 A1: MOV A,@R0
0073 F599 41 MOV SBUF,A
0075 3099FD 42 WAIT2: JNB TI,WAIT2
0078 C299 43 CLR TI
007A 08 44 INC R0
007B D9F5 45 DJNZ R1,A1
007D D2B2 46 SETB P3.2 ;显示一行
007F C2B2 47 CLR P3.2
0081 DAE0 48 DJNZ R2,LOOP ;下一行
0083 80DA 49 JMP A0
0085 80FE 50 JMP $
0087 51 INTS_T0:
0087 C2AF 52 CLR EA
0089 C000 53 PUSH 00H
008B C001 54 PUSH 01H
008D C002 55 PUSH 02H
008F DF1B 56 DJNZ R7,BACK ;软件次数，次数不到返回
0091 7F05 57 MOV R7,#5
0093 7840 58 MOV R0,#40H
A51 MACRO ASSEMBLER 8X8_MATRIX_LED 07/31/2006 19:17:04 PAGE 2
0095 7908 59 MOV R1,#8
0097 60 SHIFT1:
0097 7A02 61 MOV R2,#2
0099 C3 62 CLR C
009A C000 63 PUSH 00H
009C E8 64 MOV A,R0
009D 2401 65 ADD A,#1
009F F8 66 MOV R0,A
00A0 E6 67 MOV A,@R0
00A1 D000 68 POP 00H
00A3 33 69 RLC A
00A4 70 SHIFT2:
00A4 E6 71 MOV A,@R0
00A5 33 72 RLC A
00A6 F6 73 MOV @R0,A
00A7 08 74 INC R0
00A8 DAFA 75 DJNZ R2,SHIFT2
00AA D9EB 76 DJNZ R1,SHIFT1
00AC D002 77 BACK: POP 02H
00AE D001 78 POP 01H
00B0 D000 79 POP 00H
00B2 758901 80 MOV TMOD,#01H ;定时器0工作方式1
00B5 758AFF 81 MOV TL0,#0FFH
00B8 758C3C 82 MOV TH0,#03CH ;0FFFFH-3CAFH=50000。50MS
00BB D2A9 83 SETB ET0 ;禁止T0中断
00BD C2AB 84 CLR ET1 ;禁止T1中断
00BF D2AF 85 SETB EA
00C1 D28C 86 SETB TR0
00C3 32 87 RETI
00C4 FFFF 88 TAB: DB 0FFH,0FFH ;箭头符号
00C6 DFFF 89 DB 0DFH,0FFH
00C8 BFFF 90 DB 0BFH,0FFH
00CA 01FF 91 DB 001H,0FFH
00CC BFFF 92 DB 0BFH,0FFH
00CE DFFF 93 DB 0DFH,0FFH
00D0 FFFF 94 DB 0FFH,0FFH
95 END
A51 MACRO ASSEMBLER 8X8_MATRIX_LED 07/31/2006 19:17:04 PAGE 3
SYMBOL TABLE LISTING
------ ----- -------
N A M E T Y P E V A L U E ATTRIBUTES
A0 . . . . . . . . C ADDR 005FH A
A1 . . . . . . . . C ADDR 0072H A
BACK . . . . . . . C ADDR 00ACH A
EA . . . . . . . . B ADDR 00A8H.7 A
ET0. . . . . . . . B ADDR 00A8H.1 A
ET1. . . . . . . . B ADDR 00A8H.3 A
INTS_T0. . . . . . C ADDR 0087H A
LOOP . . . . . . . C ADDR 0063H A
MAIN . . . . . . . C ADDR 0030H A
MOVEDATA . . . . . C ADDR 003BH A
P3 . . . . . . . . D ADDR 00B0H A
SBUF . . . . . . . D ADDR 0099H A
SCON . . . . . . . D ADDR 0098H A
SHIFT1 . . . . . . C ADDR 0097H A
SHIFT2 . . . . . . C ADDR 00A4H A
SP . . . . . . . . D ADDR 0081H A
TAB. . . . . . . . C ADDR 00C4H A
TH0. . . . . . . . D ADDR 008CH A
TI . . . . . . . . B ADDR 0098H.1 A
TL0. . . . . . . . D ADDR 008AH A
TMOD . . . . . . . D ADDR 0089H A
TR0. . . . . . . . B ADDR 0088H.4 A
WAIT1. . . . . . . C ADDR 006DH A
WAIT2. . . . . . . C ADDR 0075H A
REGISTER BANK(S) USED: 0
ASSEMBLY COMPLETE. 0 WARNING(S), 0 ERROR(S)
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