; Copyright (c) 2009, <Lrz>
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
; * Neither the name of the <organization> nor the
; names of its contributors may be used to endorse or promote products
; derived from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY Alexey Teplov aka <Lrz> ''AS IS'' AND ANY
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;*****************************************************************************
; òóò îïèñûâàþòñÿ ïðîöåäóðû êîòîðûå èñïîëüçóþòñÿ â secondary loader
color_sym_black equ 0
color_sym_blue equ 1
color_sym_green equ 2
color_sym_turquoise equ 3
color_sym_red equ 4
color_sym_lightgray equ 7
color_sym_lightblue equ 9
color_sym_lettuce equ 10
color_sym_pink equ 12
color_sym_yellow equ 14
color_sym_white equ 15
if DEBUG
decode:
;input eax - ÷èñëî, es:di êóäà ïèñàòü, cx=10
cmp eax,ecx
jb @f
xor edx,edx
div ecx
push edx
call decode
pop eax
@@: or al,0x30
mov [ds:di],al
inc di
ret
end if
putchar:
; in: al=character
mov ah, 0Eh
mov bh, 0
int 10h
ret
printplain:
; in: si->string
pusha
lodsb
@@:
call putchar
lodsb
cmp al, 0
jnz @b
mov al,13
call putchar
mov al,10
call putchar
popa
ret
getkey:
; get number in range [bl,bh] (bl,bh in ['0'..'9'])
; in: bx=range
; out: ax=digit (1..9, 10 for 0)
mov ah, 0
int 16h
cmp al, bl
jb getkey
cmp al, bh
ja getkey
push ax
call putchar
pop ax
and ax, 0Fh
jnz @f
mov al, 10
@@:
ret
;setcursor:
; in: dl=column, dh=row
; mov ah, 2
; mov bh, 0
; int 10h
; ret
;macro _setcursor row,column
;{
; mov dx, row*256 + column
; call setcursor
;}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
get_firs_sym:
.start:
mov al,byte [es:di]
inc di
dec cx
jcxz .exit
cmp al,0xa ;cmp al,0xa
jz ._entry
cmp al,';'
jnz .start
.first_com:
mov al,0xa
repnz scasb
jcxz .exit
._entry:
mov al,byte [es:di]
.first_sp:
cmp al,' '
jnz .not_space
; mov al,' ' ;cut ' '
repe scasb
dec di
inc cx
mov al,byte [es:di]
.not_space:
cmp al,';'
jz .first_com
.exit: ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
show_name_section:
push si
push ini_data_
pop es
mov al,']'
repnz scasb
test cx,cx
jz error.incorect_section_def
.find_val_name_fb1:
mov al,'n'
.find_val_name_fb:
repnz scasb
jcxz .not_name_sec_fb
mov si,parse_name
push cx
push di
mov cx,parse_name_e -parse_name
repe cmpsb
pop di
pop cx
jz .yaaa_find_value
jmp .find_val_name_fb
.yaaa_find_value:
sub cx,parse_name_e -parse_name
add di,parse_name_e -parse_name
mov ax,0x3d20 ; ah='='
repe scasb
test cx,cx
jz .not_name_sec_fb
cmp ah,byte [es:di-1] ;find '='
jnz .find_val_name_fb1
repe scasb ;cut ' '
inc cx
dec di
;âñå âûðåçàëè è âñå ãîòîâî äëÿ âûâîäà èìåíè ñåêöèè ))
push es
pop ds
.def_sect_name:
push 0xb800
pop es
;clear array for message
xor ax,ax
if DEBUG
mov ax,0x0720
end if
mov cx,39
mov si,di
mov di,dx
sub di,2
rep stosw
;//////////////////////
mov di,dx
mov ah,color_sym_white;color_sym_lightblue
mov cx,36
lodsb
sub di,2
cmp al,'"'
jz @f
cmp al,"'"
jnz .end_sh_name_sec
@@: lodsb
@@:
stosw
lodsb
cmp al,'"'
jz .end_sh_name_sec
cmp al,"'"
jz .end_sh_name_sec
loop @b
mov al,'}'
mov ah,color_sym_yellow
stosw
.end_sh_name_sec:
push cs
pop ds
pop si
ret
.not_name_sec_fb: ;íåò èìåíè â íàçâàíèè ñåêöèè - çíà÷èò òàê è ñêàæåì îá ýòîì
push cs
pop ds
mov di,default_section_name
jmp .def_sect_name
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;ïðîöåäóðà ïîèñêà ââåðõ ñëåäóþùåé ñåêöèè
;â point_default ñîäåðæèòüñÿ óêàçàòåëü íà äåôàóëò ñåêöèþ, è â ïðåäåëàõ âðåéìà ìû áåãàåì ïî çàðàíåå ïðîïàðñåíûìè çíà÷åíèÿì óêàçàòåëåé
;äëÿ òîãî ÷òî áû îòîáðàçèòü è ïðîïàðñèòü ñëåäóþùèé ôðåéì, íàì íóæíî ïîëó÷èòü çà ïåðäûäóùèé èëè ñëåäóþùèé óêàçàòåëü
find_before_sect:
mov di,point_default
.e:
push ini_data_
pop es
mov cx,di ;ïðåäïîëîæèì áóäåì ïðîñìàòðèâàòü ê íà÷àëó, òåêóùàÿ ïîçèöèÿ di = ñêîëüêî ñèìâîëîâ îò íà÷àëà äîêóìåíòà èìååòñÿ
mov bx,cx ;êîïèÿ
;íàñòðîèëè óêàçàòåëü íà äåôàóëò ñåêöèþ
;áóäåì èñêàòü ââåðõ
.find_start_section:
std ;óñòàíîâêà ôëàãà íàïðàâëåíèÿ - áóäåì ïðîñìàòèðâàòü ê íà÷àëó íàøåãî èíè ôàéëà
;áóäåì èñêàòü íà÷àëî ñåêöèè ò.å. '[' ýòîò ñèìâîë
mov al,0xa
repnz scasb ;ïðîñêàíèðóåì íà íàëè÷åå ñèìâîëà íà÷àëà ñåêöèè
jcxz .go_ ;ìû ïðîñìîòðåëè äî íà÷àëà ôàéëà, íî òàê è íè÷åãî íå íàøëè ;(( ïî òèõîìó âûéäåì )
mov find_sec_di,di ;ñîõðàíèì äàííûå
mov cx,di ;
sub bx,cx
mov cx,bx ;â ñx çíà÷åíèå - êîë-âî ñèìâîëîâ
cld
call get_firs_sym
.ret_go:
jcxz ._not_section ; â äàííîì ñëó÷àå èìååì êîíñòðóêöèþ 0xa ... ; hello [ñåêöèÿ] îáëîìñ èùåì äàëåå
cmp di,point_loader ; ñåêöèþ loader ìû íå çàíîñèì èíà÷å êðàõ
jz ._not_section
;âñå óäà÷íî ìû íàøëè âõîæäåíèå ñåêöèè ïðåäûäóùåé
cmp al,'['
jnz ._not_section
mov point_default,di
.exit_scan_sect:
ret
;;;;;;;; âîññòàíîâèì çíà÷åíèÿ è ïðîäîëæèì ïîèñêè íà÷àëà ñåêöèè êîòîðàÿ íàñ óñòðîèò ))
._not_section:
mov di,find_sec_di
mov cx,di
mov bx,cx
jmp .find_start_section
.go_:
cld
mov cx,bx ;â ñx çíà÷åíèå - êîë-âî ñèìâîëîâ
mov al,byte [es:di]
push word .f_go
cmp al,' '
jz @f
jmp get_firs_sym.not_space
@@:
jmp get_firs_sym.first_sp
.f_go:
jcxz .exit_scan_sect ; â äàííîì ñëó÷àå èìååì êîíñòðóêöèþ 0xa ... ; hello [ñåêöèÿ] îáëîìñ èùåì äàëåå
cmp di,point_loader ; ñåêöèþ loader ìû íå çàíîñèì èíà÷å êðàõ
jz .exit_scan_sect
;âñå óäà÷íî ìû íàøëè âõîæäåíèå ñåêöèè ïðåäûäóùåé
cmp al,'['
jnz .exit_scan_sect
mov point_default,di
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
find_next_sect:
mov di,point_default
push ini_data_
pop es
mov cx,save_cx;di ;ïðåäïîëîæèì áóäåì ïðîñìàòðèâàòü ê êîíöó, òåêóùàÿ ïîçèöèÿ di = ñêîëüêî ñèìâîëîâ îò íà÷àëà äîêóìåíòà èìååòñÿ
sub cx,di ;ñåé÷àñ â cx îñòàòîê ò.å. ñêîëüêî ìîæíî êðóòèòü äî êîíöà è íå âûëàçèòü íà íà÷àëî
jmp .let_s_go
.h:
push ini_data_
pop es
mov cx,save_cx;di ;ïðåäïîëîæèì áóäåì ïðîñìàòðèâàòü ê êîíöó, òåêóùàÿ ïîçèöèÿ di = ñêîëüêî ñèìâîëîâ îò íà÷àëà äîêóìåíòà èìååòñÿ
; sub cx,di ;ñåé÷àñ â cx îñòàòîê ò.å. ñêîëüêî ìîæíî êðóòèòü äî êîíöà è íå âûëàçèòü íà íà÷àëî
mov al,byte [es:di]
push word .let_s_go_ret
cmp al,' '
jz @f
jmp get_firs_sym.not_space
@@:
jmp get_firs_sym.first_sp
;íàñòðîèëè óêàçàòåëü íà äåôàóëò ñåêöèþ
;áóäåì èñêàòü âíèç
.let_s_go:
call get_firs_sym
.let_s_go_ret:
jcxz .exit_scan_sect ; â äàííîì ñëó÷àå èìååì êîíñòðóêöèþ 0xa ... ; hello [ñåêöèÿ] îáëîìñ èùåì äàëåå
cmp al,'['
jnz .let_s_go
cmp di,point_loader
jz .let_s_go
;âñå óäà÷íî ìû íàøëè âõîæäåíèå ñåêöèè ïðåäûäóùåé
mov point_default,di
.exit_scan_sect:
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;
;clean old cursor
clean_active_cursor:
;íå èçìåíÿåò çíà÷åíèå ax
;îòîáðàæåíèå êóðñîðà ïî óìîë÷àíèþ
lea si,point_to_hframe
mov di,962-160
mov dx,point_default
mov cx,18
.clean_show_cur:
mov bx,[si]
add di,160
cmp bx,dx
jz .clean_cursor_
sub si,2
loop .clean_show_cur
; jmp $
.clean_cursor_:
push 0xb800
pop es
push ax
mov point_to_point_def,si
xor ax,ax
if DEBUG
mov ax,0x0720
end if
stosw
add di,68
stosw
pop ax
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;óñòàíîâêà òàéìåðà è îòîáðàæåíèå ñ÷åò÷èêà âðåìåíè
gettime:
mov ah,0
int 1Ah
xchg ax, cx
shl eax, 10h
xchg ax, dx
ret
newtimer:
push ds
push cs
pop ds
pushf
call far dword [old_timer]
pushad
call gettime
sub eax, dword[start_timer]
mov bx, word [value_timeout]
imul bx,18
sub bx, ax
jbe .timergo
push es
push 0xb800
pop es
mov ax,bx
mov bx, 18
xor dx, dx
div bx
mov bx,10
mov di,3734
call .decode
xor ax,ax
stosw
; wait 5/4/3/2 seconds, 1 second
pop es
popad
pop ds
iret
.timergo:
push 0
pop es
mov eax,dword [old_timer]
mov [es:8*4], eax
mov dword [timer_],eax
mov sp, word [start_stack]
mov bp,word [save_bp_from_timer]
;;íå âîññòàíîâëåíûé ñòåê :(
sti
jmp parse_start.parse_run_only
.decode:
;input ax - ÷èñëî, es:di êóäà ïèñàòü, bx=10
cmp ax,bx
jb @f
xor dx,dx
div bx
push dx
call .decode
pop ax
@@: or al,0x30
push ax
mov ah,9
stosw
pop ax
ret
show_bl_sc_sect:
;1) îòîáðàæåíèå ñïèñêà ñåêöèé. Åñëè ñåêöèÿ íå èìåò èìÿ - îøèáêà - âûâîä Section unname
;ïðîâåðêà íà íàëè÷åå èìåíè.
;âõîäíûå äàííûå es:di -óêàçàòåëü íà ñåêöèþ - cx ðàçìåð ñåêöèè
; push bp
mov bx,point_to_eframe
lea si,point_to_hframe
mov dx,966
.home_show_fb:
cmp si,bx
jb ._show_space_fb
mov di,[si]
sub si,2
mov cx,[si]
sub cx,di ;home first section it's end before section
call show_name_section
add dx,160
jmp .home_show_fb
._show_space_fb:
sub dx,4
push 0xb800
pop es
@@:
cmp dx,0xE64
ja .exit_show_fb
mov di,dx
;clear array for message
xor ax,ax
if DEBUG
mov ax,0x0720
end if
mov cx,39
rep stosw
;//////////////////////
add dx,160
jmp @b
.exit_show_fb:
; pop bp
ret