;九九乘法口诀表
;作者：神vLinux飘飘
stack segment stack
stack ends

data segment
author db "Write by vlinux$"
data ends

code segment
assume cs:code,ds:data,ss:stack
_main:
mov ch,1d
_main_next_1:
call _print_crlf
mov cl,1d
_main_next_2:
mov ah,0d
mov al,cl
call _print_int
mov dl,42
mov ah,2
int 21h
mov ah,0d
mov al,ch
call _print_int
mov dl,61
mov ah,2
int 21h
mov ah,0d
mov al,cl
mul ch
call _print_int
call _print_tab
mov dl,ch
inc dl
inc cl
cmp cl,dl
jne _main_next_2
inc ch
cmp ch,10d
jne _main_next_1
call _print_crlf
call _print_crlf
mov ax,data
mov ds,ax
mov dx,offset author
mov ah,9
int 21h
mov ah,4ch
int 21h

_print_int:
push ax
push bx
push cx
push dx
pushf
mov cx,10000d
mov bl,0d
_print_int_next_1:
cwd
div cx
push ax
push dx
cmp al,0d
jne _print_int_flag_1
cmp bl,0d
je _print_int_flag_2
_print_int_flag_1:
mov ah,2
mov dl,al
add dl,48
int 21h
mov bl,1d
_print_int_flag_2:
mov ax,cx
mov cx,10d
cwd
div cx
mov cx,ax
pop ax
pop dx
cmp cx,1d
jne _print_int_next_1
mov dl,al
add dl,48
mov ah,2
int 21h
popf
pop dx
pop cx
pop bx
pop ax
ret

_print_tab:
push ax
push dx
mov dl,9
mov ah,2
int 21h
pop dx
pop ax
ret

_print_crlf:
push ax
push dx
mov dl,10
mov ah,2
int 21h
pop dx
pop ax
ret
code ends
end _main