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Rev 1161 Rev 1198
Line 201... Line 201...
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;        mov     ecx, ebx
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;        mov     ecx, ebx
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;        and     ecx, 0xFFF
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;        and     ecx, 0xFFF
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;        add     edx, ecx
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;        add     edx, ecx
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;        cmp     dword [edx], 0          ; free block?
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;        cmp     dword [edx], 0          ; free block?
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;        jnz     .n
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;        jnz     .n
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;        cmp     dword [edx+4],
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;        cmp     dword [edx+4],
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;        and     [esi+V86_machine.mutex], 0
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;        and     [esi+V86_machine.mutex], 0
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;        pop     edi edx ecx ebx
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;        pop     edi edx ecx ebx
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;        ret
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;        ret
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; It is only possible to leave virtual-8086 mode by faulting to
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; It is only possible to leave virtual-8086 mode by faulting to
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; a protected-mode interrupt handler (typically the general-protection
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; a protected-mode interrupt handler (typically the general-protection
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; exception handler, which in turn calls the virtual 8086-mode monitor).
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353 
 
 - 
 
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v86_debug_exc:
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        pushad
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        xor     eax, eax
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        mov     dr6, eax
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        mov     bl, 1
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        jmp     v86_exc_c
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 - 
 
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v86_page_fault:
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        add     esp, 4
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        pushad
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        mov     bl, 14
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        jmp     v86_exc_c
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v86_except_16:
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        pushad
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        mov     bl, 16
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        jmp     v86_exc_c
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v86_except_19:
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        pushad
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        mov     bl, 19
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; exception handler, which in turn calls the virtual 8086-mode monitor).
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iglobal
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iglobal
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v86_exc_str1    db      'V86 : unexpected exception ',0
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  v86_exc_str1  db      'V86 : unexpected exception ',0
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v86_exc_str2    db      ' at ',0
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  v86_exc_str2  db      ' at ',0
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v86_exc_str3    db      ':',0
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  v86_exc_str3  db      ':',0
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v86_exc_str4    db      13,10,'V86 : faulted code:',0
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  v86_exc_str4  db      13,10,'V86 : faulted code:',0
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v86_exc_str5    db      ' (unavailable)',0
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  v86_exc_str5  db      ' (unavailable)',0
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v86_newline     db      13,10,0
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  v86_newline   db      13,10,0
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v86_io_str1     db      'V86 : access to disabled i/o port ',0
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  v86_io_str1   db      'V86 : access to disabled i/o port ',0
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v86_io_byte     db      ' (byte)',13,10,0
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  v86_io_byte   db      ' (byte)',13,10,0
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v86_io_word     db      ' (word)',13,10,0
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  v86_io_word   db      ' (word)',13,10,0
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v86_io_dword    db      ' (dword)',13,10,0
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  v86_io_dword  db      ' (dword)',13,10,0
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v86_irqerr      db      'V86 : IRQ already hooked',13,10,0
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  v86_irqerr    db      'V86 : IRQ already hooked',13,10,0
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endg
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v86_exc_c:
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        mov     ax, app_data
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endg
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v86_exc_c:
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; Did we all that we have wanted to do?
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        cmp     bl,1
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        mov     ds, ax
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        jne     @f
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        mov     es, ax
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        xor     eax, eax
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; Did we all that we have wanted to do?
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        mov     dr6, eax
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        mov     eax, [esp+v86_regs.size+10h+18h]
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  @@:   mov     eax, [esp+v86_regs.size+10h+18h]
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        cmp     word [esp+v86_regs.eip], ax
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        cmp     word [esp+v86_regs.eip], ax
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        jnz     @f
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        jnz     @f
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        mov     cx, [eax*4]
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        mov     cx, [eax*4]
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        mov     word [esi-v86_regs.size+v86_regs.eip], cx
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        mov     word [esi-v86_regs.size+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 [esi-v86_regs.size+v86_regs.cs], cx
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        mov     word [esi-v86_regs.size+v86_regs.cs], cx
947 
        and     byte [esi-v86_regs.size+v86_regs.eflags+1], not 3
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        and     byte [esi-v86_regs.size+v86_regs.eflags+1], not 3
948 
        push    ebx
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949 
        call    update_counters
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        call    update_counters
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        pop     ebx
 929 
        lea     edi, [ebx + 0x100000000 - SLOT_BASE]
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        sub     ebx, SLOT_BASE
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        shr     edi, 3
952 
        shr     ebx, 8
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        add     edi, TASK_DATA
953 
        mov     esi, [CURRENT_TASK]
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        call    find_next_task.found
954 
        call    do_change_task
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        call    do_change_task
955 
        popad
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        popad
956 
        iretd
 935 
        iretd