问下shows里的cmp ah,0和inc bx有什么用？谢谢
showsin: jmp short show
table dw ag0,ag30,ag60,ag90,ag120,ag150,ag180
ag0 db '0',0
ag30 db '0.5',0
ag60 db '0.866',0
ag90 db '1',0
ag120 db '0.866',0
ag150 db '0.5',0
ag180 db '0',0
show: push bx
push es
push si
mov bx,0b800h
mov es,bx
mov ah,0
mov bl,30
div bl
mov bl,al
mov bh,0
add bx,bx
mov bx,table[bx]
mov si,160*12+40*2
shows: mov ah,cs:[bx]
cmp ah,0 ;
je showret
mov es:[si],ah
inc bx
add si,2
jmp short shows
showret: pop si
pop es
pop bx
ret
汇编语言知识点总结：
https://blog.csdn.net/THATMASTER/article/details/124262680