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12.asm
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assume cs:code
code segment
num dw ' 1',' 2',' 3',' 4',' 5',' 6',' 7',' 8',' 9','10','11','12','13','14','15','16'
off dw -160*3,4, 8,4, 8,4, 8,4, 8,4, 160*3,4, 160*3,4, 160*3,4, 160*3,4, -8,4, -8,4, -8,4, -8,4, -160*3,4, -160*3,4, -160*3,-15*4
start:
mov al,16 ;总人数N=16
mov ah,5 ;开始报数M=5
mov bl,4 ;每隔K=4去掉一人
call draw ;绘制初始界面
call circle ;选人过程
mov ax,4c00h
int 21h
;子程序：绘制初始界面
draw:
push bx
push cx
push dx
mov dh,00100111b
push ax
mov ax,0b800h
mov es,ax
mov di,160*3+34 ;es:[di]指向屏幕位置
pop ax
push ax
mov byte ptr es:[di],'N'
mov byte ptr es:[di+1],dh
add di,2
mov byte ptr es:[di],'='
mov byte ptr es:[di+1],dh
add di,2
mov ah,dh
call draw_num
pop ax
mov cx,4
draw_1:
mov es:[di+1],dh
add di,2
loop draw_1
push ax
mov byte ptr es:[di],'M'
mov byte ptr es:[di+1],dh
add di,2
mov byte ptr es:[di],'='
mov byte ptr es:[di+1],dh
add di,2
mov al,ah
mov ah,dh
call draw_num
pop ax
mov cx,4
draw_2:
mov es:[di+1],dh
add di,2
loop draw_2
push ax
mov byte ptr es:[di],'K'
mov byte ptr es:[di+1],dh
add di,2
mov byte ptr es:[di],'='
mov byte ptr es:[di+1],dh
add di,2
mov al,bl
mov ah,dh
call draw_num
pop ax
push ax
mov cx,16
mov si,0
mov dh,10b
mov di,160*7+34
draw_3:
push si
push bx
mov ax,si
mov bl,2
mul bl
mov ah,0
mov si,ax
mov ax,off[si]
add di,ax
pop bx
pop si
mov ax,num[si]
mov es:[di],ah
mov es:[di+1],dh
mov es:[di+2],al
mov es:[di+3],dh
add si,2
loop draw_3
pop ax
pop dx
pop cx
pop bx
ret
;选人过程
circle:
mov di,160*4+66 ;es:[di]指向屏幕位置
mov si,1;标志1/2/3/4
mov bx,20
circle_1:
add di,off[bx]
cmp byte ptr es:[di+1],1b
je circle_3
cmp cx,di
je circle_ret
or byte ptr es:[di+1],10000000b
or byte ptr es:[di+3],10000000b
call delay
cmp si,4
jne circle_2
mov si,0
mov byte ptr es:[di+1],1b
mov byte ptr es:[di+3],1b
circle_2:
add si,1
and byte ptr es:[di+1],01111111b
and byte ptr es:[di+3],01111111b
mov cx,di
circle_3:
push di
mov di,160*10+52
mov ax,si
add al,30h
mov es:[di],al
mov byte ptr es:[di+1],10b
pop di
add bx,off[bx+2]
jmp circle_1
circle_ret:
ret
;延时
delay:
push cx
mov cx,03fffh
run1:
push cx
mov cx,0fffh
run2:
loop run2
pop cx
loop run1
pop cx
ret
;子程序：打印数字值
;参数： al需要打印的数
; ah字体颜色
; es:[di]指向打印位置
draw_num:
push ax
push bx
push cx
push dx
mov bh,ah
mov bl,10
mov cx,0
draw_num_1:
mov ah,0
div bl
mov dl,ah
add dl,30h
mov dh,0
push dx
inc cx
cmp al,0
jnz draw_num_1
draw_num_2:
pop ax
mov es:[di],al
mov es:[di+1],bh
add di,2
loop draw_num_2
pop dx
pop cx
pop bx
pop ax
ret
code ends
end start