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A2osX/LIB/LIBTCPIP.S.SKT.txt

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PR#3
PREFIX /A2OSX.SRC
LOMEM $900
INC 1
AUTO 6
.LIST OFF
*/--------------------------------------
* #SKT.New
* Create a new socket
* ##In :
* PUSHW = PTR to S.SOCKET template
* ##Out :
* YA = PTR to new S.SOCKET
* X = hSocket
*\--------------------------------------
SKT.New >PULLW ZPTmpPtr1
ldy #S.SOCKET.SRC.PORT+1
lda (ZPTmpPtr1),y
dey
ora (ZPTmpPtr1),y
bne .1
jsr GetDynPort
sta (ZPTmpPtr1),y
txa
iny
sta (ZPTmpPtr1),y
.1 lda hSocketTable
>SYSCALL GetMemPtrA
>STYA ZPTmpPtr2
lda #$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.TEMPLATE-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.New.TCP
bcs .99
.8 ldx TmpOffset
>LDYA ZPTmpPtr3
clc
rts
.9 lda #ERR.SKT.OOS
sec
.99 rts
*--------------------------------------
SKT.New.TCP ldy #S.SOCKET.SQ.INFREE
lda #K.TCP.WSIZE
sta (ZPTmpPtr3),y
iny
lda /K.TCP.WSIZE
sta (ZPTmpPtr3),y
ldy #S.SOCKET.SQ.OUTFREE
lda #K.TCP.WSIZE
sta (ZPTmpPtr3),y
iny
lda /K.TCP.WSIZE
sta (ZPTmpPtr3),y
lda #0
ldy #S.SOCKET.SQ.INUSED
sta (ZPTmpPtr3),y
iny
sta (ZPTmpPtr3),y
ldy #S.SOCKET.SQ.OUTUSED
sta (ZPTmpPtr3),y
iny
sta (ZPTmpPtr3),y
ldx #3
ldy #S.SOCKET.SQ.SEQNUM+3
.2 lda A2osX.TIMER16,x
sta (ZPTmpPtr3),y
dey
dex
bpl .2
>PUSHW K.TCP.WSIZE
>PUSHBI 0
>SYSCALL GetMem
bcs .9
txa
ldy #S.SOCKET.STREAM.hInMem
sta (ZPTmpPtr3),y
>PUSHW K.TCP.WSIZE
>PUSHBI 0
>SYSCALL GetMem
bcs .9
txa
ldy #S.SOCKET.STREAM.hOutMem
sta (ZPTmpPtr3),y
clc
.9 rts
*/--------------------------------------
* #SKT.CloseA
* Close socket
* ##In :
* A = hSocket
* ##Out :
*\--------------------------------------
SKT.CloseA cmp #K.SKTTABLE.SIZE
bcs SKT.GetA.9
jsr SKT.GetA.I
bcs .9
cmp #S.SOCKET.SOCK.DGRAM
beq .8
cmp #S.SOCKET.SOCK.RAW
beq .8
ldy #S.SOCKET.SO
lda (ZPPtrSKT),y
bit #S.SOCKET.SO.ACCEPTCONN
beq *
.8 lda #0
sta (ZPPtrSKT)
clc
.9 rts
*/--------------------------------------
* #SKT.GetA
* Get Ptr to socket
* ##In :
* A = hSocket
* ##Out :
* Y,A = pS.SOCKET
*\--------------------------------------
SKT.GetA cmp #K.SKTTABLE.SIZE
bcs SKT.GetA.9
jsr SKT.GetA.I
bcs SKT.GetA.9
>LDYA ZPPtrSKT
rts
SKT.GetA.I pha
lda hSocketTable
>SYSCALL GetMemPtrA
>STYA ZPPtrSKT
plx
beq .8
.1 lda ZPPtrSKT
clc
adc #S.SOCKET
sta ZPPtrSKT
bcc .2
inc ZPPtrSKT+1
.2 dex
bne .1
.8 lda (ZPPtrSKT)
beq SKT.GetA.9
clc
rts
SKT.GetA.9 lda #ERR.SKT.BAD
sec
rts
*/--------------------------------------
* #SKT.GetTable
* Get socket table
* ##In :
* ##Out :
* Y,A = pS.SOCKET
*\--------------------------------------
SKT.GetTable lda hSocketTable
>SYSCALL GetMemPtrA
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.Write (DGRAM,STREAM,RAW)
* Send block of data
* ##In :
* PUSHB = hSocket
* PUSHW = pBuf
* PUSHW = len
* ##Out :
* A = hFrame
*\--------------------------------------
SKT.Write >PULLW ZPDataInLen
>PULLW ZPDataInPtr
>PULLB hSocket
jsr SKT.GetA.I
bcs .9
cmp #S.SOCKET.SOCK.DGRAM
beq SKT.Write.UDP
cmp #S.SOCKET.SOCK.STREAM
bne .1
ldy #S.SOCKET.SO
lda (ZPPtrSKT),y
and #S.SOCKET.SO.ACCEPTCONN
bne .99
jmp SKT.Write.TCP
.1 cmp #S.SOCKET.SOCK.RAW
bne .99
jmp SKT.Write.RAW
.99 lda #ERR.SKT.BAD
sec
.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.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 sec
rts
*--------------------------------------
SKT.Write.TCP ldy #S.SOCKET.TCP.STATUS
lda (ZPPtrSKT),y
cmp #S.SOCKET.TCP.STATUS.ESTBLSH
bne .91
jsr SKT.AddDataToSktOut
bcs .90
jsr TCP.OUT try to push, ignore error....
clc
rts
.90 lda #0 no data transfered
sec
rts
.91 lda #MLI.ERR.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 :
* A = char
*\--------------------------------------
SKT.PutC sec
rts
*/--------------------------------------
* #SKT.PutS (STREAM)
* Write Line in pBuf
* ##In :
* PUSHB = hSocket
* PUSHW = PSTR
* ##Out :
*\--------------------------------------
SKT.PutS
sec
rts
*/--------------------------------------
* #SKT.GetCA (STREAM)
* Read a Char From Stream in A
* ##In :
* A = hSocket
* ##Out :
* A = char
*\--------------------------------------
SKT.GetCA sec
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
>PULLB hSocket
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
bne .91 IO err
jsr SKT.GetDataFromSktIn
bcs .99 No data...
>STYA TmpOffset
ldy #S.SOCKET.SQ.ACKNUM
lda (ZPPtrSKT),y
clc
adc TmpOffset
sta (ZPPtrSKT),y
iny
lda (ZPPtrSKT),y
adc TmpOffset+1
sta (ZPPtrSKT),y
iny
lda (ZPPtrSKT),y
adc #0
sta (ZPPtrSKT),y
iny
lda (ZPPtrSKT),y
adc #0
sta (ZPPtrSKT),y
ldy #S.SOCKET.TCP.OPTIONS
lda (ZPPtrSKT),y
ora #S.TCP.OPTIONS.ACK
sta (ZPPtrSKT),y
>LDYA TmpOffset
clc
rts
.90 lda #ERR.SKT.BAD
sec
rts
.91 lda #MLI.ERR.IO
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 #$ff
sta (ZPPtrSKT),y
clc
rts
.9 sec
rts
*--------------------------------------
* From TCP.IN
* Src : A,X
* Dst : hOutMem/OUTTAIL
*--------------------------------------
SKT.FreeDataFromSktOutAX
pha
ldy #S.SOCKET.SQ.OUTTAIL
clc
adc (ZPPtrSKT),y
sta (ZPPtrSKT),y
iny
txa
adc (ZPPtrSKT),y
and /K.TCP.WSIZE-1
sta (ZPPtrSKT),y
pla
sta .1+1
stx .2+1
ldy #S.SOCKET.SQ.OUTFREE
clc
adc (ZPPtrSKT),y
sta (ZPPtrSKT),y
iny
txa
adc (ZPPtrSKT),y
sta (ZPPtrSKT),y
ldy #S.SOCKET.SQ.OUTUSED
sec
lda (ZPPtrSKT),y
.1 sbc #$ff
sta (ZPPtrSKT),y
iny
adc (ZPPtrSKT),y
.2 sbc #$ff
sta (ZPPtrSKT),y
rts
*--------------------------------------
* From TCP.IN
* Src : ZPDataInPtr/ZPDataInLen
* Dst : hInMem/INHEAD
*--------------------------------------
SKT.AddDataToSktIn
jsr SKT.GetTCB
ldx ZPDataInLen
cpx SKT.TCBCache+S.SOCKET.SQ.INFREE
lda ZPDataInLen+1
sbc SKT.TCBCache+S.SOCKET.SQ.INFREE+1
bcc .9 Not enough room in Q
lda SKT.TCBCache+S.SOCKET.STREAM.hInMem
>SYSCALL GetMemPtrA
>STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base
lda ZPTmpPtr1
clc
adc SKT.TCBCache+S.SOCKET.SQ.INHEAD
sta ZPTmpPtr2
lda ZPTmpPtr1+1
adc SKT.TCBCache+S.SOCKET.SQ.INHEAD+1
sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail
lda ZPDataInLen
eor #$FF
tax
lda ZPDataInLen+1
eor #$FF
pha
ldy #0
.1 inx
bne .2
pla
inc
beq .8
.2 lda (ZPDataInPtr),y
sta (ZPTmpPtr2)
iny
bne .3
inc ZPDataInPtr+1
.3 inc ZPTmpPtr2
bne .4
inc ZPTmpPtr2+1
.4 inc SKT.TCBCache+S.SOCKET.SQ.INHEAD
bne .1
inc SKT.TCBCache+S.SOCKET.SQ.INHEAD+1
lda SKT.TCBCache+S.SOCKET.SQ.INHEAD+1
cmp /K.TCP.WSIZE
bne .1
stz SKT.TCBCache+S.SOCKET.SQ.INHEAD+1
lda ZPTmpPtr1 Dst Ptr=Buffer Base
sta ZPTmpPtr2
lda ZPTmpPtr1+1
sta ZPTmpPtr2+1
bra .1
.9 sec
rts
.8 lda SKT.TCBCache+S.SOCKET.SQ.INFREE
sec
sbc ZPDataInLen
sta SKT.TCBCache+S.SOCKET.SQ.INFREE
lda SKT.TCBCache+S.SOCKET.SQ.INFREE+1
sbc ZPDataInLen+1
sta SKT.TCBCache+S.SOCKET.SQ.INFREE+1
lda SKT.TCBCache+S.SOCKET.SQ.INUSED
clc
adc ZPDataInLen
sta SKT.TCBCache+S.SOCKET.SQ.INUSED
lda SKT.TCBCache+S.SOCKET.SQ.INUSED+1
adc ZPDataInLen+1
sta SKT.TCBCache+S.SOCKET.SQ.INUSED+1
jsr SKT.StoreTCB
clc
rts
*--------------------------------------
* From SKT.SEND.TCP
* Src : ZPDataInPtr/ZPDataInLen
* Dst : hOutMem/OUTHEAD
*--------------------------------------
SKT.AddDataToSktOut
jsr SKT.GetTCB
ldx ZPDataInLen
cpx SKT.TCBCache+S.SOCKET.SQ.OUTFREE
lda ZPDataInLen+1
sbc SKT.TCBCache+S.SOCKET.SQ.OUTFREE+1
bcc .9 Not enough room in Q
lda SKT.TCBCache+S.SOCKET.STREAM.hOutMem
>SYSCALL GetMemPtrA
>STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base
lda ZPTmpPtr1
clc
adc SKT.TCBCache+S.SOCKET.SQ.OUTHEAD
sta ZPTmpPtr2
lda ZPTmpPtr1+1
adc SKT.TCBCache+S.SOCKET.SQ.OUTHEAD+1
sta ZPTmpPtr2+1 Make ZPTmpPtr2=base+Tail
lda ZPDataInLen
eor #$FF
tax
lda ZPDataInLen+1
eor #$FF
pha
ldy #0
.1 inx
bne .2
pla
inc
beq .8
.2 lda (ZPDataInPtr),y
sta (ZPTmpPtr2)
iny
bne .3
inc ZPDataInPtr+1
.3 inc ZPTmpPtr2
bne .4
inc ZPTmpPtr2+1
.4 inc SKT.TCBCache+S.SOCKET.SQ.OUTHEAD
bne .1
inc SKT.TCBCache+S.SOCKET.SQ.OUTHEAD+1
lda SKT.TCBCache+S.SOCKET.SQ.OUTHEAD+1
cmp /K.TCP.WSIZE
bne .1
stz SKT.TCBCache+S.SOCKET.SQ.OUTHEAD+1
lda ZPTmpPtr1 Dst Ptr=Buffer Base
sta ZPTmpPtr2
lda ZPTmpPtr1+1
sta ZPTmpPtr2+1
bra .1
.9 sec
rts
.8 lda SKT.TCBCache+S.SOCKET.SQ.OUTFREE
sec
sbc ZPDataInLen
sta SKT.TCBCache+S.SOCKET.SQ.OUTFREE
lda SKT.TCBCache+S.SOCKET.SQ.OUTFREE+1
sbc ZPDataInLen+1
sta SKT.TCBCache+S.SOCKET.SQ.OUTFREE+1
lda SKT.TCBCache+S.SOCKET.SQ.OUTUSED
clc
adc ZPDataInLen
sta SKT.TCBCache+S.SOCKET.SQ.OUTUSED
lda SKT.TCBCache+S.SOCKET.SQ.OUTUSED+1
adc ZPDataInLen+1
sta SKT.TCBCache+S.SOCKET.SQ.OUTUSED+1
jsr SKT.StoreTCB
clc
rts
*--------------------------------------
* From TCP.OUT
* Src : hOutMem/OUTTAIL
* Dst : ZPDataOutPtr/ZPDataOutLen
*--------------------------------------
SKT.GetDataFromSktOut
jsr SKT.GetTCB
lda SKT.TCBCache+S.SOCKET.STREAM.hOutMem
>SYSCALL GetMemPtrA
>STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base
lda ZPTmpPtr1
clc
adc SKT.TCBCache+S.SOCKET.SQ.OUTTAIL
sta ZPTmpPtr2
lda ZPTmpPtr1+1
adc SKT.TCBCache+S.SOCKET.SQ.OUTTAIL+1
sta ZPTmpPtr2+1
lda ZPDataOutLen
eor #$FF
tax
lda ZPDataOutLen+1
eor #$FF
pha
ldy #0
.1 inx
bne .2
pla
inc
beq .8
.2 lda (ZPTmpPtr2)
sta (ZPDataOutPtr),y
iny
bne .3
inc ZPDataOutPtr+1
.3 inc ZPTmpPtr2
bne .4
inc ZPTmpPtr2+1
.4 inc SKT.TCBCache+S.SOCKET.SQ.OUTTAIL
bne .1
inc SKT.TCBCache+S.SOCKET.SQ.OUTTAIL+1
lda SKT.TCBCache+S.SOCKET.SQ.OUTTAIL+1
cmp /K.TCP.WSIZE
bne .1
stz SKT.TCBCache+S.SOCKET.SQ.OUTTAIL+1
lda ZPTmpPtr1 Dst Ptr=Buffer Base
sta ZPTmpPtr2
lda ZPTmpPtr1+1
sta ZPTmpPtr2+1
bra .1
.8 clc
rts
*--------------------------------------
* From SKT.Read
* In:
* Src : hInMem/INTAIL
* Dst : ZPDataOutPtr/ZPDataOutLen
* CS : Text Mode
* CC : Binary Mode
* Out:
* Y,A = bytes read
*--------------------------------------
SKT.GetDataFromSktIn
ldy #S.SOCKET.STREAM.hInMem
lda (ZPPtrSKT),y
>SYSCALL GetMemPtrA
>STYA ZPTmpPtr1 Make ZPTmpPtr1=buffer base
jsr SKT.GetTCB
lda ZPTmpPtr1
clc
adc SKT.TCBCache+S.SOCKET.SQ.INTAIL
sta ZPTmpPtr2
lda ZPTmpPtr1+1
adc SKT.TCBCache+S.SOCKET.SQ.INTAIL+1
sta ZPTmpPtr2+1
lda ZPDataOutLen
eor #$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 .7
pha
.2 lda SKT.TCBCache+S.SOCKET.SQ.INTAIL
eor SKT.TCBCache+S.SOCKET.SQ.INHEAD
bne .3
lda SKT.TCBCache+S.SOCKET.SQ.INTAIL+1
eor SKT.TCBCache+S.SOCKET.SQ.INHEAD+1
beq .8 no more data....
.3 lda (ZPTmpPtr2)
pha
inc SKT.TCBCache+S.SOCKET.SQ.INTAIL
bne .5
inc SKT.TCBCache+S.SOCKET.SQ.INTAIL+1
lda SKT.TCBCache+S.SOCKET.SQ.INTAIL+1
cmp /K.TCP.WSIZE
bne .4
stz SKT.TCBCache+S.SOCKET.SQ.INTAIL+1
lda ZPTmpPtr1
sta ZPTmpPtr2
lda ZPTmpPtr1+1
sta ZPTmpPtr2+1
bra .5
.4 inc ZPTmpPtr2
bne .4
inc ZPTmpPtr2+1
.5 pla get back data....
bit bTextMode do we need to check CR ?
bpl .6
cmp #13
beq .8
.6 sta (ZPDataOutPtr),y
iny
bne .61
inc ZPDataOutPtr+1
.61 inc ZPTmpPtr3
bne .1
inc ZPTmpPtr3+1
bra .1
.7 bit bTextMode here, bacause dst buf full....
bmi .9 ....and TextMode selected, NO ending CR found
.8 pla discard byte counter HI
lda ZPTmpPtr3 Do we have transfered something?
eor ZPTmpPtr3+1
beq .9
lda SKT.TCBCache+S.SOCKET.SQ.INFREE
clc
adc ZPTmpPtr3
sta SKT.TCBCache+S.SOCKET.SQ.INFREE
lda SKT.TCBCache+S.SOCKET.SQ.INFREE+1
adc ZPTmpPtr3+1
sta SKT.TCBCache+S.SOCKET.SQ.INFREE+1
lda SKT.TCBCache+S.SOCKET.SQ.INUSED
sec
sbc ZPTmpPtr3
sta SKT.TCBCache+S.SOCKET.SQ.INUSED
lda SKT.TCBCache+S.SOCKET.SQ.INUSED+1
sbc ZPTmpPtr3+1
sta SKT.TCBCache+S.SOCKET.SQ.INUSED+1
jsr SKT.StoreTCB
>LDYA ZPTmpPtr3
clc
rts
.9 lda #0 NO DATA
sec
rts
*--------------------------------------
SKT.GetTCB ldy #S.SOCKET-1
.1 lda (ZPPtrSKT),y
sta SKT.TCBCache,y
dey
bpl .1
rts
*--------------------------------------
SKT.StoreTCB ldy #S.SOCKET-1
.1 lda SKT.TCBCache,y
sta (ZPPtrSKT),y
dey
bpl .1
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 LIB/LIBTCPIP.S.SKT
LOAD LIB/LIBTCPIP.S
ASM
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