A2osX/LIB/LIBTCPIP.S.SKT.txt

PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
				.LIST OFF	
*--------------------------------------
SKT.NEW			>PULLW ZPPtrSKT

				stz bFound
				
				ldy #S.SOCKET.SRC.PORT+1
				lda (ZPPtrSKT),y
				dey
				ora (ZPPtrSKT),y
				bne .1
				
				jsr GetDynPort
				sta (ZPPtrSKT),y
				txa
				iny
				sta (ZPPtrSKT),y
				
.1				>LDYA L.SKT.TABLE
				>STYA ZPTmpPtr1

				ldx #0
				
.2				lda (ZPTmpPtr1)
				beq .4
				
				ldy #S.SOCKET.SRC.PORT+1
				
.3				lda (ZPPtrSKT),y
				cmp (ZPTmpPtr1),y
				bne .5
				dey
				bpl .3

				lda ERR.SBUSY
				sec
				rts
				
.4				bit bFound
				bmi .5
				sec
				ror bFound
				stx hSocket
				>LDYA ZPTmpPtr1
				>STYA ZPTmpPtr2
				
.5				lda ZPTmpPtr1
				clc
				adc #S.SOCKET
				sta ZPTmpPtr1
				bcc .6
				inc ZPTmpPtr1+1
.6				inx
				cpx #K.SKTTABLE.SIZE
				bne .2
				
				bit bFound
				bpl .9
				
				ldy #S.SOCKET-1
.7				lda (ZPPtrSKT),y
				sta (ZPTmpPtr2),y
				dey
				bpl .7
				
				lda hSocket
				clc
				rts
				
.9				lda ERR.OOS
				sec
				rts
*--------------------------------------
SKT.LISTEN
				sec
				rts
*--------------------------------------
SKT.ACCEPT
				sec
				rts
*--------------------------------------
SKT.SENDA
				sec
				rts
*--------------------------------------
SKT.SEND		>PULLB hSocket
				pha
				>PULLW ZPDataPtr
				>PULLW ZPDataLen
				
				pla
				jsr SKT.GetA
				bcs .9
			
				cmp #S.SOCKET.SOCK.DGRAM
				beq SKT.SEND.UDP
				
				bra *
				
				sec
.9				rts
*--------------------------------------
SKT.SEND.UDP	jsr NEW.UDP.FRAME
				bcs .9
				>STYA ZPFrameBase1

				lda #S.UDP
				clc
				adc ZPDataLen
				sta ZPFrameLen1
				
				lda /S.UDP
				adc ZPDataLen+1
				sta ZPFrameLen1+1				
				
				ldy #S.SOCKET.SRC.PORT
				lda (ZPPtrSKT),y
				tax
				iny
				lda (ZPPtrSKT),y
 				ldy #S.UDP.SRCPORT
				sta (ZPFrameBase1),y
				iny
				txa
				sta (ZPFrameBase1),y
				
				ldy #S.SOCKET.SRC.ADDR
				ldx #4
				
.1				lda (ZPPtrSKT),y
				pha
				iny
				dex
				bne .1
				
				ldy #S.IP.DST+3
				ldx #4
				
.2				pla
				sta (ZPFrameBase1),y
				dey
				dex
				bne .2
				
				ldy #S.SOCKET.DST.PORT
				lda (ZPPtrSKT),y
				tax
				iny
				lda (ZPPtrSKT),y
 				ldy #S.UDP.DSTPORT
				sta (ZPFrameBase1),y
				iny
				txa
				sta (ZPFrameBase1),y
				
				lda #S.UDP
				clc
				adc ZPFrameBase1
				sta ZPTmpPtr1
				lda /S.UDP
				adc ZPFrameBase1+1
				sta ZPTmpPtr1+1
				
				ldy #0
.3				jsr DecDataLen
				beq .4
				lda (ZPDataPtr),y
				sta (ZPTmpPtr1),y
				iny
				bne .3
				inc ZPDataPtr
				inc ZPTmpPtr1
				bra .3
				
.4				jmp SEND.UDP.FRAME.I
.9				rts
*--------------------------------------
SKT.RCVDA
				sec
				rts
*--------------------------------------
SKT.RCVD
				sec
				rts
*--------------------------------------
SKT.CLOSE
				sec
				rts
*--------------------------------------
SKT.GETTABLE	>LDYA L.SKT.TABLE
				clc
				rts
*--------------------------------------
SKT.GetA		stz ZPPtrSKT+1
				asl
				rol ZPPtrSKT+1
				asl
				rol ZPPtrSKT+1
				asl
				rol ZPPtrSKT+1
				asl
				rol ZPPtrSKT+1
				adc L.SKT.TABLE
				sta ZPPtrSKT
				lda ZPPtrSKT+1
				adc L.SKT.TABLE+1
				sta ZPPtrSKT+1
				lda (ZPPtrSKT)
				beq .9
				rts						CC
				
.9				lda #ERR.SBAD
				sec
				rts
*--------------------------------------
MAN
SAVE LIB/LIBTCPIP.S.SKT
LOAD LIB/LIBTCPIP.S
ASM