NEW PREFIX /A2OSX.BUILD AUTO 4,1 .LIST OFF */-------------------------------------- * # SKT.New * Create a new socket * **In:** * PUSHW = PTR to S.SOCKET template * **Out:** * YA = PTR to new S.SOCKET * X = hSocket *\-------------------------------------- SKT.New clc .HS B0 BCS SKT.New.Listen sec ror sta .71+1 >PULLW ZPTmpPtr1 ldy #S.SOCKET.SRC.PORT+1 lda (ZPTmpPtr1),y dey ora (ZPTmpPtr1),y bne .1 jsr GetDynPort sta (ZPTmpPtr1),y txa iny sta (ZPTmpPtr1),y .1 lda hSocketTable >SYSCALL GetMemPtr >STYA ZPTmpPtr2 lda #$ff sta TmpOffset to keep track of any free slot ldx #0 .2 lda (ZPTmpPtr2) beq .4 empty!!! cmp (ZPTmpPtr1) bne .5 not same SKT type...try next ldy #S.SOCKET.SRC.ADDR .3 lda (ZPTmpPtr1),y cmp (ZPTmpPtr2),y bne .5 iny cpy #S.SOCKET.DST.PORT+2 bne .3 lda #ERR.SKT.BUSY same one!!!!! busy... sec rts .4 lda TmpOffset bpl .5 already found an empty slot.... >LDYA ZPTmpPtr2 found one... >STYA ZPTmpPtr3 save it! stx TmpOffset .5 lda ZPTmpPtr2 clc adc #S.SOCKET sta ZPTmpPtr2 bcc .6 inc ZPTmpPtr2+1 .6 inx cpx #K.SKTTABLE.SIZE bne .2 lda TmpOffset Did we found an empty slot ? bmi .9 ldy #S.SOCKET.HDR-1 .7 lda (ZPTmpPtr1),y sta (ZPTmpPtr3),y dey bpl .7 lda (ZPTmpPtr1) cmp #S.SOCKET.SOCK.STREAM bne .8 ldy #S.SOCKET.SO lda (ZPTmpPtr1),y and #S.SOCKET.SO.ACCEPTCONN bne .8 jsr SKT.NewTCB bcs .99 .71 lda #$ff bmi .8 From Listen, do not send SYN packet >LDYA ZPTmpPtr3 >STYA ZPPtrSKT lda #S.TCP.OPTIONS.SYN jsr TCP.OUT.SendOptA Send SYN,Only for CLIENT conn!!!! bcs .99 ldy #S.SOCKET.TCP.STATUS lda #S.SOCKET.TCP.STATUS.SYNSENT sta (ZPPtrSKT),y .8 lda TmpOffset ora #$80 tax >LDYA ZPTmpPtr3 clc rts .9 lda #ERR.SKT.OOS sec .99 rts */-------------------------------------- * # SKT.CloseA * Close socket * **In:** * A = hSocket * **Out:** *\-------------------------------------- SKT.CloseA jsr SKT.GetA.I get SKT in ZPPtrSKT, S.SOCKET.SOCK in A bcs .99 cmp #S.SOCKET.SOCK.STREAM beq .10 TCP bcc .9 no #S.SOCKET.SOCK.DGRAM, nor #S.SOCKET.SOCK.RAW .1 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y beq .8 No frame in Queue, close.. pha save tail... clc adc #S.SOCKET.HQ tax pla inc cmp #S.SOCKET.HQ.MAX beq .2 lda #0 .2 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y txa tay lda (ZPPtrSKT),y >SYSCALL FreeMem bra .1 .8 lda #0 sta (ZPPtrSKT) clc rts .9 lda #ERR.SKT.BAD sec .99 rts .10 ldy #S.SOCKET.SO lda (ZPPtrSKT),y bit #S.SOCKET.SO.ACCEPTCONN bne * TO DO: Listening socket ldy #S.SOCKET.TCP.OPTIONS lda (ZPPtrSKT),y ora #S.TCP.OPTIONS.FIN sta (ZPPtrSKT),y jsr TCP.OUT SKT.Close, Try to push FIN clc rts */-------------------------------------- * # SKT.GetA * Get Ptr to socket * **In:** * A = hSocket * **Out:** * Y,A = pS.SOCKET *\-------------------------------------- SKT.GetA jsr SKT.GetA.I bcs .9 >LDYA ZPPtrSKT .9 rts SKT.GetA.I and #$7f cmp #K.SKTTABLE.SIZE bcs .9 pha lda hSocketTable >SYSCALL GetMemPtr >STYA ZPPtrSKT pla beq .8 stz .1+1 lsr ror .1+1 lsr ror .1+1 lsr ror .1+1 pha lda ZPPtrSKT clc .1 adc #$ff sta ZPPtrSKT pla adc ZPPtrSKT+1 sta ZPPtrSKT+1 .8 lda (ZPPtrSKT) beq .9 clc rts .9 lda #ERR.SKT.BAD sec rts */-------------------------------------- * # SKT.GetTable * Get socket table * **In:** * **Out:** * Y,A = pS.SOCKET *\-------------------------------------- SKT.GetTable lda hSocketTable >SYSCALL GetMemPtr clc rts */-------------------------------------- * # SKT.AcceptA * Check for an incoming connection * **In:** * A = hListeningSocket * **Out:** * A = hSocket *\-------------------------------------- SKT.AcceptA jsr SKT.GetA.I bcs .9 ldy #S.SOCKET.SO lda (ZPPtrSKT),y and #S.SOCKET.SO.ACCEPTCONN beq .99 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y Queue Empty beq .9 CS pha save tail... inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y pla clc adc #S.SOCKET.HQ tay lda (ZPPtrSKT),y clc rts .99 lda #ERR.SKT.BAD sec .9 rts */-------------------------------------- * # SKT.MkNodA * Create a new file from TCP socket * **In:** * A = hSocket * **Out:** * A = hFile *\-------------------------------------- SKT.MkNodA sta .1+1 >LDYAI S.FD.SSOCK >SYSCALL GetMem0.YA bcs .9 >STYA ZPTmpPtr1 ldy #S.FD.T lda #S.FD.T.SSOCK sta (ZPTmpPtr1),y ldy #S.FD.SSOCK.HSKT .1 lda #$ff sta (ZPTmpPtr1),y >LDYA ZPTmpPtr1 rts bcs .9 >STYA ZPTmpPtr1 ldy #S.FD.SSOCK-1 .2 lda FD.SSOCK,y sta (ZPTmpPtr1),y dey bpl .2 txa * clc .9 rts */-------------------------------------- * # SKT.Write (DGRAM,STREAM,RAW) * Send block of data * **In:** * PUSHB = hSocket * PUSHW = pBuf * PUSHW = len * **Out:** *\-------------------------------------- SKT.Write >PULLW ZPDataInLen >PULLW ZPDataInPtr >PULLA jsr SKT.GetA.I bcs .9 cmp #S.SOCKET.SOCK.DGRAM beq SKT.Write.UDP cmp #S.SOCKET.SOCK.RAW beq SKT.Write.RAW cmp #S.SOCKET.SOCK.STREAM bne .99 ldy #S.SOCKET.SO lda (ZPPtrSKT),y and #S.SOCKET.SO.ACCEPTCONN bne .99 jmp SKT.Write.TCP .99 lda #ERR.SKT.BAD sec .9 rts *-------------------------------------- SKT.Write.RAW ldy #S.SOCKET.RAW.PROTO lda (ZPPtrSKT),y tax >LDYA ZPDataInLen jsr FRM.NewIP bcs .9 jsr SKT.SetFrameOutDstIP jsr SKT.CopyDataInToOut jmp FRM.SendIP .9 rts *-------------------------------------- SKT.Write.UDP ldx #S.IP.PROTOCOL.UDP >LDYA ZPDataInLen jsr FRM.NewIP bcs .9 jsr SKT.SetFrameOutDstIP ldy #S.SOCKET.SRC.PORT lda (ZPPtrSKT),y tax iny lda (ZPPtrSKT),y ldy #S.UDP.SRCPORT sta (ZPFrameOutPtr),y iny txa sta (ZPFrameOutPtr),y ldy #S.SOCKET.DST.PORT lda (ZPPtrSKT),y tax iny lda (ZPPtrSKT),y ldy #S.UDP.DSTPORT sta (ZPFrameOutPtr),y iny txa sta (ZPFrameOutPtr),y jsr SKT.CopyDataInToOut jmp FRM.SendIP .9 rts *-------------------------------------- SKT.Write.TCP ldy #S.SOCKET.TCP.STATUS lda (ZPPtrSKT),y cmp #S.SOCKET.TCP.STATUS.ESTBLSH bne .91 jsr SKT.AddDataToSktOut will call SKT.GetTCB bcs .90 jsr TCP.OUT.I SKT.GetTCB called, try to push, ignore error.... clc rts .90 lda #0 no data transfered sec rts .91 lda #MLI.E.IO sec .99 rts */-------------------------------------- * # SKT.ReadA (DGRAM,RAW) * **In:** * A = hSocket * **Out:** * A = hFrame *\-------------------------------------- SKT.ReadA jsr SKT.GetA.I bcs .9 ldy #S.SOCKET.HQ.TAIL lda (ZPPtrSKT),y tax ldy #S.SOCKET.HQ.HEAD cmp (ZPPtrSKT),y beq .99 inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL sta (ZPPtrSKT),y txa clc adc #S.SOCKET.HQ tay lda (ZPPtrSKT),y clc rts .99 sec .9 rts */-------------------------------------- * # SKT.PutC (STREAM) * Write a Char To Stream * **In:** * PUSHB = hSocket * PUSHB = Char * **Out:** *\-------------------------------------- SKT.PutC >PULLB TmpByte ldx #1 stx ZPDataInLen stz ZPDataInLen+1 ldx L.TmpByte stx ZPDataInPtr ldx L.TmpByte+1 stx ZPDataInPtr+1 bra SKT.PutS.1 */-------------------------------------- * # SKT.PutS (STREAM) * Write Line in pBuf * **In:** * PUSHB = hSocket * PUSHW = PSTR * **Out:** *\-------------------------------------- SKT.PutS >PULLW ZPDataOutPtr lda (ZPDataInPtr) sta ZPDataInLen stz ZPDataInLen+1 inc ZPDataInPtr bne SKT.PutS.1 inc ZPDataInPtr+1 SKT.PutS.1 >PULLA jsr SKT.GetA.I bcs .9 cmp #S.SOCKET.SOCK.STREAM bne .9 jmp SKT.Write.TCP .9 lda #ERR.SKT.BAD sec rts */-------------------------------------- * # SKT.GetC.A (STREAM) * Read a Char From Stream in A * **In:** * A = hSocket * **Out:** * A = char *\-------------------------------------- SKT.GetC.A stz bTextMode ldx #1 stx ZPDataOutLen stz ZPDataOutLen+1 ldx L.TmpByte stx ZPDataOutPtr ldx L.TmpByte+1 stx ZPDataOutPtr+1 jsr SKT.Read.I bcs .9 lda TmpByte .9 rts */-------------------------------------- * # SKT.GetS (STREAM) * Read a CR terminated Line in pBuf * **In:** * PUSHB = hSocket * PUSHW = pBuf * PUSHW = len * **Out:** * Y,A = bytes read *\-------------------------------------- SKT.GetS sec .HS 90 bcc */-------------------------------------- * # SKT.Read (STREAM) * Read data in pBuf * **In:** * PUSHB = hSocket * PUSHW = pBuf * PUSHW = len * **Out:** * Y,A = bytes transfered *\-------------------------------------- SKT.Read clc ror bTextMode >PULLW ZPDataOutLen >PULLW ZPDataOutPtr >PULLA SKT.Read.I jsr SKT.GetA.I bcs .99 cmp #S.SOCKET.SOCK.STREAM bne .90 bad skt ldy #S.SOCKET.SO lda (ZPPtrSKT),y and #S.SOCKET.SO.ACCEPTCONN bne .90 Bad Skt ldy #S.SOCKET.TCP.STATUS lda (ZPPtrSKT),y cmp #S.SOCKET.TCP.STATUS.ESTBLSH bcc .92 Not yet established...no data bne .91 closing...IO err jsr SKT.GetDataFromSktIn rts if CS, No data... .90 lda #ERR.SKT.BAD sec rts .91 lda #MLI.E.IO sec rts .92 lda #0 sec .99 rts *-------------------------------------- * PRIVATE *-------------------------------------- * ZPPtrSKT -> actual socket * A = hSocket or hFrame *-------------------------------------- SKT.AddToQueueA sta .2+1 ldy #S.SOCKET.HQ.HEAD lda (ZPPtrSKT),y tax inc cmp #S.SOCKET.HQ.MAX bne .1 lda #0 .1 ldy #S.SOCKET.HQ.TAIL cmp (ZPPtrSKT),y beq .9 Queue full!! ldy #S.SOCKET.HQ.HEAD sta (ZPPtrSKT),y txa clc adc #S.SOCKET.HQ tay .2 lda #$ff sta (ZPPtrSKT),y clc rts .9 sec rts *-------------------------------------- * From TCP.IN * Src : ZPDataInPtr/ZPDataInLen * Dst : hInMem/INHEAD *-------------------------------------- SKT.AddDataToSktIn ldx SKT.TCBCache+S.TCB.INFREE cpx ZPDataInLen lda SKT.TCBCache+S.TCB.INFREE+1 sbc ZPDataInLen+1 bcc .9 Not enough room in Q ldy #S.TCP.SEQNUM+3 ldx #3 .10 lda (ZPFrameInPtr),y eor SKT.TCBCache+S.TCB.INLASTSEQNUM,x bne .9 dey dex bpl .10 ldy #S.SOCKET.SQ.hInMem lda (ZPPtrSKT),y >SYSCALL GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.TCBCache+S.TCB.INHEAD sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.TCBCache+S.TCB.INHEAD+1 sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail lda ZPDataInLen eor #$FF tax lda ZPDataInLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPDataInPtr),y sta (ZPTmpPtr2) iny bne .3 inc ZPDataInPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.TCBCache+S.TCB.INHEAD bne .1 inc SKT.TCBCache+S.TCB.INHEAD+1 lda SKT.TCBCache+S.TCB.INHEAD+1 cmp /K.TCP.WSIZE bne .1 stz SKT.TCBCache+S.TCB.INHEAD+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .9 sec rts .8 lda SKT.TCBCache+S.TCB.INFREE sec sbc ZPDataInLen sta SKT.TCBCache+S.TCB.INFREE lda SKT.TCBCache+S.TCB.INFREE+1 sbc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.INFREE+1 lda SKT.TCBCache+S.TCB.INUSED clc adc ZPDataInLen sta SKT.TCBCache+S.TCB.INUSED lda SKT.TCBCache+S.TCB.INUSED+1 adc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.INUSED+1 clc lda SKT.TCBCache+S.TCB.INLASTSEQNUM+3 adc ZPDataInLen sta SKT.TCBCache+S.TCB.INLASTSEQNUM+3 lda SKT.TCBCache+S.TCB.INLASTSEQNUM+2 adc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.INLASTSEQNUM+2 bcc .80 inc SKT.TCBCache+S.TCB.INLASTSEQNUM+1 bne .80 inc SKT.TCBCache+S.TCB.INLASTSEQNUM .80 clc rts *-------------------------------------- * From SKT.Read * In: * Src : hInMem/INTAIL * Dst : ZPDataOutPtr/ZPDataOutLen * bTextMode * Out: * Y,A = bytes read *-------------------------------------- SKT.GetDataFromSktIn jsr SKT.GetTCB lda SKT.TCBCache+S.TCB.INUSED ora SKT.TCBCache+S.TCB.INUSED+1 bne .10 sec rts A=0,NO DATA .10 ldy #S.SOCKET.SQ.hInMem lda (ZPPtrSKT),y >SYSCALL GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.TCBCache+S.TCB.INTAIL sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.TCBCache+S.TCB.INTAIL+1 sta ZPTmpPtr2+1 lda ZPDataOutLen eor #$FF tax lda ZPDataOutLen+1 eor #$FF pha stz ZPTmpPtr3 Reset byte counter stz ZPTmpPtr3+1 ldy #0 .1 inx Check if room left in dest buffer bne .2 pla inc beq .8 pha .2 lda SKT.TCBCache+S.TCB.INTAIL eor SKT.TCBCache+S.TCB.INHEAD bne .3 lda SKT.TCBCache+S.TCB.INTAIL+1 eor SKT.TCBCache+S.TCB.INHEAD+1 beq .7 no more data.... .3 lda (ZPTmpPtr2) pha inc SKT.TCBCache+S.TCB.INTAIL bne .5 inc SKT.TCBCache+S.TCB.INTAIL+1 lda SKT.TCBCache+S.TCB.INTAIL+1 cmp /K.TCP.WSIZE bne .4 stz SKT.TCBCache+S.TCB.INTAIL+1 lda ZPTmpPtr1 sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .5 .4 inc ZPTmpPtr2 bne .5 inc ZPTmpPtr2+1 .5 pla get back data.... bit bTextMode do we need to check CR ? bpl .6 cmp #13 beq .7 .6 sta (ZPDataOutPtr),y iny bne .61 inc ZPDataOutPtr+1 .61 inc ZPTmpPtr3 bne .1 inc ZPTmpPtr3+1 bra .1 .7 pla discard byte counter HI .8 bit bTextMode here, bacause dst buf full.... bmi .9 ....and TextMode selected, NO ending CR found lda ZPTmpPtr3 Do we have transfered something? ora ZPTmpPtr3+1 beq .9 lda SKT.TCBCache+S.TCB.INFREE clc adc ZPTmpPtr3 sta SKT.TCBCache+S.TCB.INFREE lda SKT.TCBCache+S.TCB.INFREE+1 adc ZPTmpPtr3+1 sta SKT.TCBCache+S.TCB.INFREE+1 lda SKT.TCBCache+S.TCB.INUSED sec sbc ZPTmpPtr3 sta SKT.TCBCache+S.TCB.INUSED lda SKT.TCBCache+S.TCB.INUSED+1 sbc ZPTmpPtr3+1 sta SKT.TCBCache+S.TCB.INUSED+1 lda SKT.TCBCache+S.TCB.OUTACKNUM+3 clc adc ZPTmpPtr3 sta SKT.TCBCache+S.TCB.OUTACKNUM+3 lda SKT.TCBCache+S.TCB.OUTACKNUM+2 adc ZPTmpPtr3+1 sta SKT.TCBCache+S.TCB.OUTACKNUM+2 bcc .80 inc SKT.TCBCache+S.TCB.OUTACKNUM+1 bne .80 inc SKT.TCBCache+S.TCB.OUTACKNUM .80 jsr SKT.StoreTCB ldy #S.SOCKET.TCP.OPTIONS lda (ZPPtrSKT),y ora #S.TCP.OPTIONS.ACK sta (ZPPtrSKT),y jsr TCP.OUT.I SKT.GetTCB already called, Try to ACK read DATA >LDYA ZPTmpPtr3 clc rts .9 lda #0 NO DATA sec rts *-------------------------------------- * From SKT.Write.TCP * Src : ZPDataInPtr/ZPDataInLen * Dst : hOutMem/OUTHEAD *-------------------------------------- SKT.AddDataToSktOut jsr SKT.GetTCB ldx SKT.TCBCache+S.TCB.OUTFREE cpx ZPDataInLen lda SKT.TCBCache+S.TCB.OUTFREE+1 sbc ZPDataInLen+1 bcc .9 Not enough room in Q ldy #S.SOCKET.SQ.hOutMem lda (ZPPtrSKT),y >SYSCALL GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.TCBCache+S.TCB.OUTHEAD sta ZPTmpPtr2 lda ZPTmpPtr1+1 adc SKT.TCBCache+S.TCB.OUTHEAD+1 sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail lda ZPDataInLen eor #$FF tax lda ZPDataInLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPDataInPtr),y sta (ZPTmpPtr2) iny bne .3 inc ZPDataInPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.TCBCache+S.TCB.OUTHEAD bne .1 inc SKT.TCBCache+S.TCB.OUTHEAD+1 lda SKT.TCBCache+S.TCB.OUTHEAD+1 cmp /K.TCP.WSIZE bne .1 stz SKT.TCBCache+S.TCB.OUTHEAD+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .9 sec rts .8 lda SKT.TCBCache+S.TCB.OUTFREE sec sbc ZPDataInLen sta SKT.TCBCache+S.TCB.OUTFREE lda SKT.TCBCache+S.TCB.OUTFREE+1 sbc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.OUTFREE+1 lda SKT.TCBCache+S.TCB.OUTUSED clc adc ZPDataInLen sta SKT.TCBCache+S.TCB.OUTUSED lda SKT.TCBCache+S.TCB.OUTUSED+1 adc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.OUTUSED+1 lda SKT.TCBCache+S.TCB.OUTTOSEND clc adc ZPDataInLen sta SKT.TCBCache+S.TCB.OUTTOSEND lda SKT.TCBCache+S.TCB.OUTTOSEND+1 adc ZPDataInLen+1 sta SKT.TCBCache+S.TCB.OUTTOSEND+1 jsr SKT.StoreTCB rts *-------------------------------------- * From TCP.OUT * Src : hOutMem/OUTTAIL * Dst : ZPDataOutPtr/ZPDataOutLen *-------------------------------------- SKT.GetDataFromSktOut ldy #S.SOCKET.SQ.hOutMem lda (ZPPtrSKT),y >SYSCALL GetMemPtr >STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base lda ZPTmpPtr1 clc adc SKT.TCBCache+S.TCB.OUTTAILNEXT sta ZPTmpPtr2 Make ZPTmpPtr2=base+nexttail lda ZPTmpPtr1+1 adc SKT.TCBCache+S.TCB.OUTTAILNEXT+1 sta ZPTmpPtr2+1 lda ZPDataOutLen eor #$FF tax lda ZPDataOutLen+1 eor #$FF pha ldy #0 .1 inx bne .2 pla inc beq .8 pha .2 lda (ZPTmpPtr2) sta (ZPDataOutPtr),y iny bne .3 inc ZPDataOutPtr+1 .3 inc ZPTmpPtr2 bne .4 inc ZPTmpPtr2+1 .4 inc SKT.TCBCache+S.TCB.OUTTAILNEXT bne .1 inc SKT.TCBCache+S.TCB.OUTTAILNEXT+1 lda SKT.TCBCache+S.TCB.OUTTAILNEXT+1 cmp /K.TCP.WSIZE bne .1 stz SKT.TCBCache+S.TCB.OUTTAILNEXT+1 lda ZPTmpPtr1 Dst Ptr=Buffer Base sta ZPTmpPtr2 lda ZPTmpPtr1+1 sta ZPTmpPtr2+1 bra .1 .8 lda SKT.TCBCache+S.TCB.OUTTOSEND sec sbc ZPDataOutLen sta SKT.TCBCache+S.TCB.OUTTOSEND lda SKT.TCBCache+S.TCB.OUTTOSEND+1 sbc ZPDataOutLen+1 sta SKT.TCBCache+S.TCB.OUTTOSEND+1 clc rts *-------------------------------------- * From TCP.IN * Src : A,X * Dst : hOutMem/OUTTAIL *-------------------------------------- SKT.AckDataToSktOut ldy #S.TCP.ACKNUM+3 Get new ACK number from FrameIn... ldx #3 Substract old ACK from socket sec .1 lda (ZPFrameInPtr),y pha sbc SKT.TCBCache+S.TCB.OUTSEQNUM,x sta TmpDWord,x pla ....and Set SEQ = new SEQ sta SKT.TCBCache+S.TCB.OUTSEQNUM,x dey dex bpl .1 lda TmpDWord+3 ldx TmpDWord+2 bne .2 tay beq .8 .2 clc adc SKT.TCBCache+S.TCB.OUTTAIL sta SKT.TCBCache+S.TCB.OUTTAIL txa adc SKT.TCBCache+S.TCB.OUTTAIL+1 and /K.TCP.WSIZE-1 sta SKT.TCBCache+S.TCB.OUTTAIL+1 lda SKT.TCBCache+S.TCB.OUTFREE clc adc TmpDWord+3 sta SKT.TCBCache+S.TCB.OUTFREE lda SKT.TCBCache+S.TCB.OUTFREE+1 adc TmpDWord+2 sta SKT.TCBCache+S.TCB.OUTFREE+1 lda SKT.TCBCache+S.TCB.OUTUSED sec sbc TmpDWord+3 sta SKT.TCBCache+S.TCB.OUTUSED lda SKT.TCBCache+S.TCB.OUTUSED+1 sbc TmpDWord+2 sta SKT.TCBCache+S.TCB.OUTUSED+1 .8 rts *-------------------------------------- SKT.NewTCB >LDYAI S.TCB >SYSCALL GetMem0.YA bcs .9 >STYA .4+1 txa ldy #S.SOCKET.SQ.hTCB sta (ZPTmpPtr3),y lda #K.TCP.WSIZE sta SKT.TCBCache+S.TCB.INFREE sta SKT.TCBCache+S.TCB.OUTFREE lda /K.TCP.WSIZE sta SKT.TCBCache+S.TCB.INFREE+1 sta SKT.TCBCache+S.TCB.OUTFREE+1 ldx #3 .2 lda A2osX.TIMER16,x sta SKT.TCBCache+S.TCB.OUTNEXTSEQ,x dex bpl .2 >LDYAI K.TCP.WSIZE >SYSCALL getmem bcs .9 txa ldy #S.SOCKET.SQ.hInMem sta (ZPTmpPtr3),y >LDYAI K.TCP.WSIZE >SYSCALL getmem bcs .9 txa ldy #S.SOCKET.SQ.hOutMem sta (ZPTmpPtr3),y ldx #S.TCB-1 .3 lda SKT.TCBCache,x .4 sta $ffff,x dex bpl .3 clc .9 rts *-------------------------------------- SKT.GetTCB ldy #S.SOCKET.SQ.hTCB lda (ZPPtrSKT),y >SYSCALL GetMemPtr bcs * >STYA .1+1 ldx #S.TCB-1 .1 lda $ffff,x sta SKT.TCBCache,x dex bpl .1 rts *-------------------------------------- SKT.StoreTCB ldy #S.SOCKET.SQ.hTCB lda (ZPPtrSKT),y >SYSCALL GetMemPtr bcs * >STYA .2+1 ldx #S.TCB-1 .1 lda SKT.TCBCache,x .2 sta $ffff,x dex bpl .1 rts *-------------------------------------- SKT.Destroy ldy #S.SOCKET.SQ.hOutMem lda (ZPPtrSKT),y beq .1 >SYSCALL FreeMem .1 ldy #S.SOCKET.SQ.hInMem lda (ZPPtrSKT),y beq .2 >SYSCALL FreeMem .2 ldy #S.SOCKET.SQ.hTCB lda (ZPPtrSKT),y beq .3 >SYSCALL FreeMem .3 lda #0 sta (ZPPtrSKT) clc rts *-------------------------------------- SKT.SetFrameOutDstIP ldy #S.SOCKET.DST.ADDR ldx #4 .1 lda (ZPPtrSKT),y pha iny dex bne .1 ldy #S.IP.DST+3 ldx #4 .2 pla sta (ZPFrameOutPtr),y dey dex bne .2 rts *-------------------------------------- SKT.CopyDataInToOut lda ZPDataInPtr+1 pha lda ZPDataOutPtr+1 pha lda ZPDataInLen eor #$ff tax lda ZPDataInLen+1 eor #$ff pha ldy #0 .1 inx bne .2 pla inc beq .9 pha .2 lda (ZPDataInPtr),y sta (ZPDataOutPtr),y iny bne .1 inc ZPDataInPtr+1 inc ZPDataOutPtr+1 bne .1 .9 pla sta ZPDataOutPtr+1 pla sta ZPDataInPtr+1 rts *-------------------------------------- MAN SAVE /A2OSX.SRC/LIB/LIBTCPIP.S.SKT LOAD /A2OSX.SRC/LIB/LIBTCPIP.S ASM