; !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! CORRUPTED !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ; Sorry, after my disk-crash, I can't found any backup of this file, please ; refer to documentation for more informations or to next part (6th)... ; THANX! ;旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� ;� PMode Tutorial (c) 1996 MATTsoft, All rights reserved. � ;쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� ;쿟HiS iS EXAMPLE (5th) New segment organization(CODE32,DATA32,CODE16,DATA16)� ;� 頰頰頰頰頰頰� G00D LuCK! 頰頰頰頰頰頰� � ;읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� ; ������������� IMPORTANT �������������� ; 栢栢栢 Select your graphics card 栢栢栢 VIDEO_SEG equ 0B0000h ; for HERCULES ;VIDEO_SEG equ 0B8000h ; for VGA ; 栢栢栢栢栢栢栢栢栢栢栢栢栢栢栢栢栢栢栢 LOCALS @@ ;袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴 CODE16 SEGMENT BYTE PUBLIC 'CODE' ASSUME CS:CODE16,DS:DATA16 .386 .386P ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 Start: mov ax,DATA16 mov ds,ax mov es,ax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 call CheckProcessor ; Check if 386+ call CheckV86 ; Check V86 mode call EnableA20 ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 ASSUME DS:DATA32 ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 xor eax,eax mov ax,DATA32 mov ds,ax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 shl eax,4 add dword ptr ds:[GDT+2],eax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 xor eax,eax mov ax,CODE16 shl eax,4 add dword ptr ds:[GDT_Code16+2],eax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 xor eax,eax mov ax,CODE32 shl eax,4 add dword ptr ds:[GDT_Code32+2],eax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 xor eax,eax mov ax,DATA32 shl eax,4 add dword ptr ds:[GDT_Data32+2],eax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 xor eax,eax mov ax,DATA16 shl eax,4 add dword ptr ds:[GDT_Data16+2],eax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 cli lgdt fword ptr ds:[GDT] ; Load GDTR mov eax,cr0 or al,1 mov cr0,eax ; Set Pmode mov ax,CORE32_idx mov ds,ax mov es,ax mov gs,ax mov fs,ax ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 db 0EAh dw 0 dw CODE32_idx Exit16: ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 mov eax,cr0 xor al,1 mov cr0,eax ; Return back to real :-( ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 mov ax,4c00h int 21h ; ... and terminate ;컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴 ; $0ME R0UTiNES... ;沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆沆 ; Checks if the processor is 386+ CheckProcessor: pushf ; save flags for later xor ah,ah ; clear high byte push ax ; push AX on the stack popf ; pop this value into the flag register pushf ; push flags on the stack pop ax ; ...and get flags into AX and ah,0f0h ; try to set the high nibble cmp ah,0f0h ; on a 80386, the high nibble can never be 0f0h je @@1 ; ... mov ah,70h ; now try to set NT and IOPL push ax ; popf ; pushf ; pop ax ; and ah,70h ; if they couldn't be modified, no 386 is installed jz @@1 ; ... popf ; restore flags retn ; and return @@1: mov dx,offset no386err ; if there is no 386, L@Owl컴컴'(e ox ao3a沆�ai3ao3a沆�ai3ao3a沆�ai3ao3a沆�aia沆�ai3ao3a沆�aia沆�ai3ao3aa沆沆� v ax,CODE3GIGBG9idx Exit16: ;沆沆沆沆沆沆沆I沆�ailg鋏� cli lgdt fwor pop ax ; ; ... @ $0dncd 鋏鋏� mov eax,cr0 v 6;e,e沆I沆�ailg鋏� cli lgdt � 沆沆 mov eax,cr0 ufset no386err �y 鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏鋏� 沆�3cr0,eax ac;;wlaaaaaafaafaafaafaafaafaafaa86err,aaaain'3wlaaaaaaL86err,aaaain'3wlaaaaaaL8rn @@1 ; ani86 is installed ; L,,,,aaL8rn @@1 ; ani86 is in;dIm aieRtsi86 is in; ; Co鋏鋏鋏鋏鋏 lgdtgTb lgdttttt eaaff$oi;3b lgdttttt eaaff$oi;3b lgdtttlAtlAtlA컴컴컴컴컴컴컴컴컴컴컴훓gdtgTb le@aain'ain'3wla lgdttttt eaeLlgdtt ; 9 Aeaax,cr0 v 6;e,e 660Al '(G9x.x컴컴Ucr0 v 6;e,aAca ac; v 6;e,aAca 1 o ,e,aA,aAn Aeaax,cr0 v n G9op ax ; ...a'(e Ti installed ; L e0000 E G9op ax lr l E 3t f l E 0f0f0linaaaaaaaaaigh nibble can never be l ldn't b lr ; ; tyo Bh Oaei 6;lsg_nn't o i ac;;wlaaaaABh sDd, no 3 6;e,aAcae0000die xor ah,a;e,aAcae0000die ; D; tyo Bh no 3 6;e,aAcae0000die xor � 6;len't o i ac;;wlaaaaAB ; eaw0B ut o i ac; 3t f L � 6;la : E Ci)M$ ; :inaaaaaaaa� Bh Oaei Oaefrocessor Oaefrocessor Oaefrl660 Oaefrocessorh �rh �rh �rh �rGMfeR6no inaaaaaaaa� Bh $rl660 Oaefrocessorh �rh ;lh ain'ain'3wla d ac; 3t f L � 6;la : 2iR6 o if vA o if vA o if vAeR6 o iDlaa沆沆� v ax,COD 3aa沆沆� v ax,CODE3GIG v ax,Cac; 3t f L rNk=fwor po eEna AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA M AAAAAAAAAAA M AAAAAAAAAAA EeaAcae0000di4Nk=1wor po eEna AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAACorenaaaaaaaAAAAffffhaaaaaaaaaaaaaaaaaaaaaaaAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAA1 ;aaaaaaaaaaaaaaaaaaaaAAAAAP=1,DPL=0,ED=0,W=1,A=0AAA AAAAAAAAAAAAAAAAA anni86 ;aaaaaaaaaaaaaaaaaaaaAAAAAAAG=1,s=1], v16AAA9AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0000di4Nk=1wor po eEna AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAACodenaaaaaaaAAAAffffhaaaaaaaaaaaaaaaaaaaaaaaAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAA1 1 ;aaaaaaaaaaaaaaaaaaaaAAAAAP=1,DPL=0,C=0,R=1,A=0AAA AAAAAAAAAAAAAAAAA anni86 ;aaaaaaaaaaaaaaaaaaaaAAAAAAAG=1,s=0], v16AAA9AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0000di4Nk=1wor po eEna AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAADatanaaaaaaaAAAAffffhaaaaaaaaaaaaaaaaaaaaaaaAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAA1 ;aaaaaaaaaaaaaaaaaaaaAAAAAP=1,DPL=0,ED=0,W=1,A=0AAA AAAAAAAAAAAAAAAAA anni86 ;aaaaaaaaaaaaaaaaaaaaAAAAAAAG=1,s=1], v16AAA9AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0000di4Nk=1wor po eEna AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAACode16AAAAAAAAAAffffhaaaaaaaaaaaaaaaaaaaaaaaAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAA1 1 ;aaaaaaaaaaaa �>Ru ����� 홓�,���/�5�!뙽 홺*�C�/<�u!P�&.�x�C�/����������홓퇷�V�D%rP퇰)�J������홓몄�5�>�r�2�G�/�5�!뙽 홺;��/$t$<t<t�>�r�2��2��2���F�/ 픲�2��>� s�툱D튢S�+�!�픱 �0�P츙O�u:P몄瘟���= ��e#r!P멩(����엷�6쒸�e!r�9暈P몄�v驩�쵈�2帳�< t< u醇3��5N�63�@9꺚�貸�@껇렳꺚�;홸慾풮물�+�괎�s�戴�7�5 �池ue뗖�且uM뗟&� 픱< t< uG脣�5��63且u+뗻껓薰@;�v뗉�:池�u&��n홓퇳�~��ub3을X꺝껁�S�宅뚗��\倭rE^겮��Mt ���� �0퓮튇懲�*�>���懲�*�>���那那懲���;풑�D �*�D�D�D*�D@�D V�D.�꽊�M�>�r�꼯츙�u/�6�껥�u��@t�6�껥�t6��6A��떿宖ㅸ홝WP퇼��P�&A펅P툞P�@�>@t��P�%.�&A^ 픱 껟t��@u�?!� �!筽4튞!� �!哈$�(���t�U獒5퓮�緩2s��!�#�_^홝WP퇮�"��t>�(�u7�9 �tP�#)�쒸Q�$Ys껠 �,:�tP륭,畏�,��_^츱��W懲씁 � 懲X�%�혽CDEFKPRYZ/[.a.v.~.먾������������������������������������������������������������� !"#$��&'()*+,-.����������4��������������<=>����A����������GHI������������������S����������]^_`a������������h��j����������p��������u����x��������}����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������