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;       udp_rx      Handles received IP packets with the UDP protocol
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;       udp_rx      Handles received IP packets with the UDP protocol
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;
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;
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;*******************************************************************
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;*******************************************************************
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;
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;   UDP Payload ( Data field in IP datagram )
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;
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;    0                   1                   2                   3
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;    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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;
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;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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;   |       Source Port             |      Destination Port         |
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;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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;   | Length ( UDP Header + Data )  |           Checksum            |
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;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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;   |       UDP Data                                                |
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;   +-+-+-..........                                               -+
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;
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struc UDP_PACKET
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{  .SourcePort       dw  ?  ;+00
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   .DestinationPort  dw  ?  ;+02
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   .Length           dw  ?  ;+04 - Length of (UDP Header + Data)
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   .Checksum         dw  ?  ;+06
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   .Data             db  ?  ;+08
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}
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virtual at 0
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  UDP_PACKET UDP_PACKET
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end virtual
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;***************************************************************************
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;***************************************************************************
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;   Function
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;   Function
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;      udp_rx
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;      udp_rx  [by Johnny_B]
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;
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;
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;   Description
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;   Description
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;       UDP protocol handler
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;       UDP protocol handler
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;       This is a kernel function, called by ip_rx
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;       This is a kernel function, called by ip_rx
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;       IP buffer address given in edx
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;       IP buffer address given in edx
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;          IP buffer number in eax
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;          Free up (or re-use) IP buffer when finished
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;          Free up (or re-use) IP buffer when finished
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    rep     movsb          ; copy the data across
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    rep     movsb          ; copy the data across
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    ; flag an event to the application
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    ; flag an event to the application
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    pop     eax
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    pop     eax
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    mov     ecx,1
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    mov     ecx,1
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    mov     esi,0x3020+TASKDATA.pid
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    mov     esi,TASK_DATA+TASKDATA.pid
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newsearch:
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newsearch:
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    cmp     [esi],eax
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    cmp     [esi],eax
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    je      foundPID
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    je      foundPID
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    inc     ecx
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    inc     ecx
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    add     esi,0x20
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    add     esi,0x20
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    cmp     ecx,[0x3004]
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    cmp     ecx,[TASK_COUNT]
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    jbe     newsearch
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    jbe     newsearch
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foundPID:
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foundPID:
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    shl     ecx,8
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    shl     ecx,8
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    or      dword [ecx+0x80000+APPDATA.event_mask],dword 10000000b ; stack event
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    or      dword [ecx+SLOT_BASE+APPDATA.event_mask],dword 10000000b ; stack event
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    mov     [check_idle_semaphore],200
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    mov     [check_idle_semaphore],200
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 - 
 
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udprx_001:
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