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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                                 ;;
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;;                                                                 ;;
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;; Copyright (C) KolibriOS team 2004-2010. All rights reserved.    ;;
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;; Copyright (C) KolibriOS team 2004-2013. 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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;;  loopback.inc                                                   ;;
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;;  loopback.inc                                                   ;;
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;;                                                                 ;;
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;;                                                                 ;;
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;;  LoopBack device for KolibriOS                                  ;;
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;;  LoopBack device for KolibriOS                                  ;;
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        push    ebx
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        push    ebx
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        push    ecx
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        push    ecx
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        push    eax
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        inc     [LOOPBACK_DEVICE.packets_rx]
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        add     dword[LOOPBACK_DEVICE.bytes_rx], ecx
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        push    eax
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        adc     dword[LOOPBACK_DEVICE.bytes_rx + 4], 0
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "LOOP_input: size=%u\n", ecx
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "LOOP_input: size=%u\n", ecx
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        lea     edx, [eax + 4]
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        lea     edx, [eax + 4]
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;
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;
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; LOOP_output
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; LOOP_output
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;
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;
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; IN:
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; IN:
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;     ecx = packet size
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;       ecx = packet size
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;      di = protocol
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;       edi = address family
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;
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;
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; OUT: edi = 0 on error, pointer to buffer otherwise
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; OUT:  edi = 0 on error, pointer to buffer otherwise
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;      eax = buffer start
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;       eax = buffer start
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;      ebx = to device structure
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;       ebx = to device structure
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;      ecx = unchanged (packet size of embedded data)
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;       ecx = unchanged (packet size of embedded data)
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        lea     eax, [edi - 4]  ; Set eax to buffer start
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        lea     eax, [edi - 4]  ; Set eax to buffer start
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        pop     ecx
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        pop     ecx
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        lea     edx, [ecx + 4]  ; Set edx to complete buffer size
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        lea     edx, [ecx + 4]  ; Set edx to complete buffer size
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        mov     ebx, LOOPBACK_DEVICE
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        mov     ebx, LOOPBACK_DEVICE
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        inc     [LOOPBACK_DEVICE.packets_tx]
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        add     dword[LOOPBACK_DEVICE.bytes_tx], ecx
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        adc     dword[LOOPBACK_DEVICE.bytes_tx + 4], 0
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  .done:
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "LOOP_output: ptr=%x size=%u\n", eax, edx
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "LOOP_output: ptr=%x size=%u\n", eax, edx
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        ret
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        ret
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  .out_of_ram:
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  .out_of_ram:
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "LOOP_output: failed\n"
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        DEBUGF  DEBUG_NETWORK_ERROR, "LOOP_output: out of memory\n"
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        add     esp, 4+4
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        add     esp, 4+4