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;; Copyright (C) KolibriOS team 2007-2008. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2007-2008. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 960 $
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$Revision: 971 $
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; Virtual-8086 mode manager
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; Virtual-8086 mode manager
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        mov     bl, 14          ; #PF exception
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        mov     bl, 14          ; #PF exception
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        jmp     .nogp
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        jmp     .nogp
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@@:
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@@:
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        sub     word [esp+4+v86_regs.esp], 6
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        sub     word [esp+4+v86_regs.esp], 6
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        mov     eax, [esp+4+v86_regs.eip]
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        mov     eax, [esp+4+v86_regs.eip]
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        cmp     byte [esp+1], 0
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        jnz     @f
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        inc     eax
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        inc     eax
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        inc     eax
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        inc     eax
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@@:
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        mov     word [edx], ax
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        mov     word [edx], ax
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        mov     eax, [esp+4+v86_regs.cs]
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        mov     eax, [esp+4+v86_regs.cs]
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        mov     word [edx+2], ax
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        mov     word [edx+2], ax
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        mov     eax, [esp+4+v86_regs.eflags]
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        mov     eax, [esp+4+v86_regs.eflags]
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        mov     word [edx+4], ax
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        mov     word [edx+4], ax
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        pop     eax
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        pop     eax
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        mov     ah, 0
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        mov     cx, [eax*4]
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        mov     cx, [eax*4]
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        mov     word [esp+v86_regs.eip], cx
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        mov     word [esp+v86_regs.eip], cx
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        mov     cx, [eax*4+2]
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        mov     cx, [eax*4+2]
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        mov     word [esp+v86_regs.cs], cx
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        mov     word [esp+v86_regs.cs], cx
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; note that interrupts will be disabled globally at IRET
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; note that interrupts will be disabled globally at IRET
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        shl     ecx, 8
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        shl     ecx, 8
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        cmp     [SLOT_BASE+ecx+APPDATA.dir_table], eax
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        cmp     [SLOT_BASE+ecx+APPDATA.dir_table], eax
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        jnz     .notcurrent
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        jnz     .notcurrent
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        lea     eax, [edi+8]
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        lea     eax, [edi+8]
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        cmp     al, 10h
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        cmp     al, 10h
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        mov     ah, 1
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        jb      @f
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        jb      @f
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        add     al, 60h
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        add     al, 60h
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@@:
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@@:
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        jmp     v86_exc_c.simulate_int
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        jmp     v86_exc_c.simulate_int
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.notcurrent:
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.notcurrent: