微机原理课设2016loop

mov dx,con_8255
mov al,80h
out dx,al
mov dx,pc_8255
mov al,LEDCON
out dx,al
mov cx ,10
MOV Buffer + 2,AL
MOV AL,2
MOV AH,AL
AND AL,0FH
MOV Buffer + 3,AL
MOV Buffer + 4,10H
MOV Buffer + 5,10H
MOV Buffer + 6,10H
MOV Buffer + 7,10H
MOV CX , 20
AGAIN: CALL Display8
loop AGAIN
POP DX
POP CX
POP BX
MOV ES,AX
NOP
CALL InitKeyDisplay ;对键盘、数码管控制器8255初始化
CALL Init825ห้องสมุดไป่ตู้
CALL WriIntver
MOV Counter,0 ;中断次数
MOV ReDisplayFlag,0
CALL DISPLAY8
loop again222
MOV LEDCON,0FFH
CALL LedDisplay_a
CALL DISPLAY8
CMP Counter,7
JNZ START2
START3:
LEA SI,Buffer
mov dx,con_8255
mov al,80h
out dx,al
mov dx,pc_8255
mov al,0ffh
out dx,al
mov cx,10
RET
LedDisplay_a ENDP
LedDisplay_b PROC NEAR
PUSH AX
PUSH BX
PUSH DX
LEA SI,buffer1 ;置显示缓冲器初值
MOV AH,7FH
LEA BX,SEG_TAB
LD0: MOV DX,PA_8255
mov al,80h
out dx,al
mov dx,pc_8255
mov al,LEDCON
out dx,al
mov cx ,10
CALL LedDisplay_a
again222:
AND AL,0FH
MOV Buffer+1,AL
MOV AL,1
MOV AH,AL
AND AL,0FH
MOV Buffer + 2,AL
MOV AL,0
MOV AH,AL
again111:
CALL DISPLAY8
loop again111
mov ReDisplayFlag,0
LEA SI,Buffer
MOV CL,COUNTER
SHL LEDCON,CL
mov dx,con_8255
PC_8255 EQU 0272H
.STACK 100
.DATA
BUFFER DB 8 DUP(?)
BUFFER1 DB 0,1,2,3,4,5,6,7
SEG_TAB DB 0A4H,0C0H,0F9H,82H,0C7H,0C0H,0C0H ,8CH
RET
Init8259 ENDP
WriIntver PROC NEAR
PUSH ES
MOV AX,0
MOV ES,AX
MOV DI,28H
LEA AX,INT_2
STOSW
CMP ReDisplayFlag,0
JNZ START2
CALL delay
CALL LedDisplay3
CMP ReDisplayFlag,0
JNZ START2
CALL delay
MOV AX,CS
STOSW
POP ES
RET
WriIntver ENDP
LedDisplay_a PROC NEAR
PUSH AX
PUSH BX
PUSH CX
PUSH DX
MOV AL,Counter
MOV Buffer+5,AL
MOV Buffer+6,AL
MOV Buffer+7,AL
POP DX
POP CX
POP BX
POP AX
MOV Buffer,AL
MOV AL,1
MOV AH,AL
AND AL,0FH
MOV Buffer + 1,AL
MOV AL,0
MOV AH,AL
AND AL,0FH
again333:
CALL LedDisplay_b
loop again333
mov ReDisplayFlag,0
LEA SI,Buffer
; MOV CL,COUNTER
mov ledcon,0b3h
OUT DX,AL
MOV DX,IO8259_1
MOV AL,08H
OUT DX,AL
MOV AL,09H
OUT DX,AL
MOV AL,0FbH
OUT DX,AL
LEDCON DB 0FFH
Counter DB ?
ReDisplayFlag DB 0
.CODE
START:
MOV DX,Con_8255
MOV AL,80H
OUT DX,AL
MOV AX,@DATA
MOV DS,AX
again444:
CALL LedDisplay_b
loop again444
MOV LEDCON,0FFH
CMP Counter,8
JNZ START3
START4:
MOV Counter,1
MOV Buffer,AL
MOV Buffer+1,AL
MOV Buffer+2,AL
MOV Buffer+3,AL
MOV Buffer+4,AL
LODSB
XLAT ;取显示数据
OUT DX,AL ;段数据->8255 PA 口；PA指示LED显示什么数据
INC DX ;扫描模式->8255 PB 口；PB哪个LED显示
MOV AL,AH
OUT DX,AL
CALL DL1 ;延迟1ms
MOV DX,PB_8255
POP AX
RET
LedDisplay ENDP
LedDisplay2 PROC NEAR
push ax
push bx
push cx
push dx
MOV BUFFER,10H
MOV AL,6
MOV AH,AL
START2:
mov dx,con_8255
mov al,80h
out dx,al
mov dx,pc_8255
mov al,0ffh
out dx,al
mov cx,10
CALL LedDisplay_a
JMP START2
Delay PROC NEAR ;延时
PUSH cx
MOV CX,60000
DL500ms1: LOOP DL500ms1
POP CX
RET
Delay ENDP
Delay2 PROC NEAR
AND AL,0FH
MOV Buffer + 3,AL
MOV AL,2
MOV AH,AL
AND AL,0FH
MOV CX,500
LOOP $
POP CX
RET
DL1 ENDP
LedDisplay PROC NEAR
PUSH AX
PUSH BX
PUSH CX
PUSH DX
MOV AL,6
MOV AH,AL
AND AL,0FH
.MODEL TINY
EXTRN InitKeyDisplay:NEAR, Display8:NEAR
IO8259_0 EQU 0250H
IO8259_1 EQU 0251H
CON_8255 EQU 0273H
PA_8255 EQU 0270H
PB_8255 EQU 0271H
PUSH CX
MOV CX,60000
CALL DISPLAY8
LOOP DELAY2
pop cx
ret
delay2 endp
Init8259 PROC NEAR
MOV DX,IO8259_0
MOV AL,13H
CALL LedDisplay2
CMP ReDisplayFlag,0
JNZ START2
CALL delay
CALL LedDisplay
CMP ReDisplayFlag,0
JZ START1
STI ;开中断
START1:
LEA SI,Buffer
CALL LedDisplay5
CMP ReDisplayFlag,0
JNZ START2