258 lines
4.7 KiB
NASM
258 lines
4.7 KiB
NASM
.model small
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.586
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public display_Shandow
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extrn assc:far,clear_screen:far,display_eax:far,first_screen:far
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.data
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es_seg dw 0c000H
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bx_seg dd 0H
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not_find db 'not find string ','$'
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address db 'find string [_SM_], and have use string [_MS_] replace it',0dh,0ah,' address is:','$'
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mesg_recover db 'you can chose 1 to recover String [_SM_]','$'
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fuhao db ':','$'
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help_text_shadow DB 'QUIT: Q','$'
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si_string db '_SM_','$'
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di_string db '_MS_','$'
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.code
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.startup
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display_Shandow:
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init:
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include MACRO_zifu.MAC
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call clear_screen
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PUSHA
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mov bh,0
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mov dh,23 ;放入行号
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mov dl,3 ;放入列号
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mov ah,02h
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int 10h
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POPA
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msg help_text_shadow
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MOV AX,es_seg
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mov es,AX
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mov bx,word ptr bx_seg
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mov si,0
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mov di,0
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;mov cx,256
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mov cx,3
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add_es:
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mov ax,es
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add ax,1000h
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mov es,ax
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cheak_sm:
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push cx
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mov cx,65536
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cheak_S:
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mov al,es:[bx+si]
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cmp al,si_string[di]
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JZ cheak_2
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jmp next_char
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;-----------------------
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cheak_2:
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; mov
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inc si
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inc di
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mov al,es:[bx+si]
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cmp al,si_string[di]
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jz cheak_3
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;JZ display_address
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dec si
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dec di
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jmp next_char
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cheak_3:
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inc si
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inc di
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mov al,es:[bx+si]
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cmp al,si_string[di]
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jz cheak_4
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dec si
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;dec si
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dec di
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dec di
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jmp next_char
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cheak_4:
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inc si
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inc di
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mov al,es:[bx+si]
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cmp al,si_string[di]
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jz display_address
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dec si
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dec di
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dec di
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dec di
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; cheak_M
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next_char:
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INC SI
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loop cheak_S
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pop cx
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loop add_es
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PUSHA
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mov bh,0
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mov dh,3 ;放入行号
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mov dl,3 ;放入列号
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mov ah,02h
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int 10h
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POPA
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msg not_find
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jmp stop
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display_address:
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dec si
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PUSHA
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mov bh,0
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mov dh,3 ;放入行号
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mov dl,3 ;放入列号
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mov ah,02h
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int 10h
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POPA
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msg address
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pusha
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mov ax,si
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add bx,ax
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mov bx_seg,ebx
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popa
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xor eax,eax
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mov eax,es
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shl eax,16
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add eax, bx_seg
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sub eax,2
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call display_eax_s
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call write_enable
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mov bx,word ptr bx_seg
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sub bx,2
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mov si,0
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mov di,0
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mov cx,4
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write_again:
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mov al,di_string[di]
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mov es:[bx+si],al
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inc si
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inc di
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loop write_again
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stop:
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NO_INPUT_SHADOW:
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mov ah,11H
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int 16H ;检测按键是有否按下，有则判断按键是否是ESC,否则继续刷新
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jz NO_INPUT_SHADOW
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mov ah,0
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int 16h
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cmp al,'q' ;若为Q\q 键则退出
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jz first_screen
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cmp al,'Q' ;若为Q\q 键则退出
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jz first_screen
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jmp NO_INPUT_SHADOW
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.exit
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write_enable proc
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pusha
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xor eax,eax
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mov al,90h
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or eax,80000000h
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mov dx,0cf8h
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out dx,eax
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mov eax,33333333h
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mov dx,0cfch
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out dx,eax
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xor eax,eax
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mov al,94h
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or eax,80000000h
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mov dx,0cf8h
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out dx,eax
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mov eax,33333333h
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mov dx,0cfch
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out dx,eax
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popa
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ret
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write_enable endp
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display_eax_s proc far
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pusha
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mov cx,4
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;and eax,eax
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display_al:
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rol eax,8
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call assc
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cmp cx,3
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jnz continue_al
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msg fuhao
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continue_al:
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loop display_al
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popa
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ret
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display_eax_s endp
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; assc proc far ;hex to asscii from al
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; PUSHA
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; ; cmp al,0ffh
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; ; jz
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; mov bl,al ;reserve al_high
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; shr al,4
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; add al,30h ;将高四位转换成对应的十六进制数字
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; cmp al,'9' ;判断位数是否大于 9 大于则对其ASCII码值加7转换成16进制
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; jLE next11
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; add al,7
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; next11:
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; mov dl,al
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; mov ah,2 ;调用DOS功能显示高四位对应的数字
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; int 21h
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; and bl,0fh
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; mov dl,bl
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; add dl,30h
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; cmp Dl,'9' ;调用DOS功能显示低四位对应的数字
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; jLE next22
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; add Dl,7
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; next22:
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; mov ah,2
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; int 21h
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; popa
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; ret
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; assc endp
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; clear_screen proc far
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; ; protec registers
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; push ax
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; push bx
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; push cx
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; push dx
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; ;clear_screen
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; mov ah,6
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; mov al,0
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; mov bh,27h
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; mov ch,0
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; mov cl,0
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; mov dh,24
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; mov dl,79
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; int 10h
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; ;locate_cussor
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; mov dx,0
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; mov ah,2
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; int 10h
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; ;restore registers
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; pop dx
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; pop cx
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; pop bx
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; pop ax
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; ret
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; clear_screen endp
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end |