8086CPU、8255、16*16点阵显示汉字程序 Proteus仿真图 -

AIOCON EQU 8006H ;行信号
AIOA EQU 8000H
AIOB EQU 8002H
AIOC EQU 8004H
BIOCON EQU 9006H ;行控制
BIOA EQU 9000H
BIOB EQU 9002H
BIOC EQU 9004H
DATAS SEGMENT ;不要动这是固定格式
;信(0) 阳(1) 学(2) 院(3)
XIN DB 00H,80H,01H,00H,06H,00H,1FH,0FFH,0E0H,00H,00H,00H,20H,00H,24H,9FH;
DB 24H,92H,0A4H,92H,64H,92H,24H,92H,24H,92H,24H,9FH,20H,00H,00H,00H;"信",0
DB 00H,00H,7FH,0FFH,40H,10H,44H,08H,5BH,10H,60H,0E0H,00H,00H,3FH,0FFH;
DB 20H,82H,20H,82H,20H,82H,20H,82H,20H,82H,3FH,0FFH,00H,00H,00H,00H;"阳",1
DB 02H,20H,0CH,20H,88H,20H,69H,20H,09H,20H,09H,22H,89H,21H,69H,7EH;
DB 09H,60H,09H,0A0H,19H,20H,28H,20H,0C8H,20H,0AH,20H,0CH,20H,00H,00H;"学",2
DB 00H,00H,7FH,0FFH,44H,20H,5AH,10H,61H,0E0H,08H,01H,30H,82H,24H,8CH;
DB 24H,0F0H,0A4H,80H,64H,80H,24H,0FCH,24H,82H,28H,82H,30H,8EH,00H,00H;"院",3
LKZZ DW 0001H,0002H,0004H,0008H,0010H,0020H,0040H,0080H,0100H,0200H,0400H,0800H,1000H,2000H,4000H,8000H
BUF DW 0000H
BUF1 DW 0000H
;此处输入数据段代码
DATAS ENDS ;不要动这是固定格式
STACKS SEGMENT ;不要动这是固定格式
DZKJ DW 16 DUP(0);此处输入堆栈段代码 ;可以修改
STACKS ENDS ;不要动这是固定格式
CODE SEGMENT ;
ASSUME CS:CODE,DS:DATAS,SS:STACKS ;不要动这是固定格式
START:
MOV AX,STACKS ;不要动这是固定格式问题 STACKS=？
MOV SS,AX ;不要动这是固定格式
MOV SP,0020H ;可以修改
MOV AX,DATAS ;不要动这是固定格式问题 DATAS=？
MOV DS,AX ;不要动这是固定格式
MOV AL,80H ;U6 8255 写方式控制字，A口工作在方式0，做输出，B口工作在方式0，做输出，C口作为输出
MOV DX,AIOCON
OUT DX,AL
MOV AL,80H ;U7 8255写方式控制字，A口工作在方式0，做输出，B口工作在方式0，做输出，C口作为输出
MOV DX,BIOCON
OUT DX,AL
QS:
LEA BX,XIN
MOV CX,4
MOV [BUF],CX
ILED:
MOV CX,0500H
MOV [BUF1],CX
ILED0:
MOV SI,BX
LEA DI,LKZZ
MOV CX,16
XH160:
MOV AX,[DI];列控制信号
MOV DX,AIOA
OUT DX,AL
MOV AL,AH
MOV DX,AIOB
OUT DX,AL
MOV AL,[SI]
NOT AL
MOV DX,BIOA
OUT DX,AL
INC SI
MOV AL,[SI]
NOT AL
MOV DX,BIOB
OUT DX,AL
INC SI
INC DI
INC DI
LOOP XH160
MOV CX,[BUF1]
DEC CX
MOV [BUF1],CX
JNZ ILED0
ADD BX,32
MOV CX,[BUF]
DEC CX
MOV [BUF],CX
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