A2osX/SBIN/DHCPCLNT.S.txt

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PR#3
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PREFIX /A2OSX.SRC
LOMEM $C00
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INC 1
AUTO 6
.LIST OFF
.OP 65C02
.OR $2000
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.TF /A2OSX.BOOT/SBIN/DHCPCLNT
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*--------------------------------------
.INB /A2OSX.DEV/INC/MACROS.I
.INB /A2OSX.DEV/INC/A2OSX.I
.INB /A2OSX.DEV/INC/LIBTCPIP.I
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*--------------------------------------
TIMEOUT.MAX .EQ 100 10 sec.
*--------------------------------------
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ZPIPCfgPtr .EQ ZPBIN
ZPFrameBase .EQ ZPBIN+2
ZPFramePtr .EQ ZPBIN+4
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
CS.START cld
jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA 0
.DA CS.END-CS.START
.DA DS.END-DS.START Data Segment to Allocate
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
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.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.LIBTCPIP .DA LIBTCPIP
L.IPCFG .DA IPCFG
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L.Socket .DA Socket
L.MSG.CFG1 .DA MSG.CFG1
L.MSG.CFG2 .DA MSG.CFG2
L.MSG.CFG.KO .DA MSG.CFG.KO
L.MSG.CFG.OK .DA MSG.CFG.OK
L.MSG.CFG.ND .DA MSG.CFG.ND
L.MSG.CFG.NA .DA MSG.CFG.NA
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L.DHCP.DISC .DA DHCP.DISC
L.DHCP.REQ .DA DHCP.REQ
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.DA 0
*--------------------------------------
CS.INIT >LDYA L.LIBTCPIP
>SYSCALL LoadLibYA
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sta hLIBTCPIP
>LIBCALL hLIBTCPIP,LIBTCPIP.GET.IPCFG
bcs .9
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>STYA ZPIPCfgPtr
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lda (ZPIPCfgPtr)
and #S.IPCFG.STATUS.OK
bne .99 Already Configured, exit
ldy #S.IPCFG.HDEV
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lda (ZPIPCfgPtr),y
beq .98
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ldy #S.IPCFG-1
.1 lda (ZPIPCfgPtr),y
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sta IPCFG,y
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dey
bne .1
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stz IPCFG
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>LDYA A2OSX.TIMER16
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>STYA DHCP.DISC.XID
>STYA DHCP.REQ.XID
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>LDYA A2OSX.RANDOM16
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>STYA DHCP.DISC.XID+2
>STYA DHCP.REQ.XID+2
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ldx #5
.2 lda IPCFG+S.IPCFG.MAC,x
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sta DHCP.DISC.CHADDR,x
sta DHCP.REQ.CHADDR,x
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dex
bpl .2
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lda (pPs)
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ora #S.PS.F.EVENT Now accept events
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sta (pPs)
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clc
.9 rts
.98 >LDYA L.MSG.CFG.ND
bra .90
.99 >LDYA L.MSG.CFG.NA
.90 >SYSCALL CPrintFYA
lda #0
sec
rts
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*--------------------------------------
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CS.RUN >PUSHW L.Socket
>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.NEW
bcc .1
jmp CS.RUN.KO
.1 txa
ldy #hSocket
sta (pData),y
>LDYA L.MSG.CFG1
>SYSCALL CPrintFYA
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jsr Init.Timeout
CS.RUN.SDISC >PUSHWI DHCP.DISC.LEN
>PUSHW L.DHCP.DISC
jsr CS.RUN.SKT.SEND
bcc .1
jmp CS.RUN.KO
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.1 lda #S.IPCFG.STATUS.SDISC
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sta IPCFG
CS.RUN.ROFFER >SYSCALL Sleep
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jsr CS.RUN.SKT.RCVD
bcc .1
jsr Wait.Timeout
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bcc CS.RUN.ROFFER
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lda #1
jmp CS.RUN.KO
.1 jsr CheckDHCPOffer
bcs CS.RUN.ROFFER
lda #S.IPCFG.STATUS.ROFFER
sta IPCFG
CS.RUN.SREQ ldx #3
.1 >PUSHB IPCFG+S.IPCFG.DHCPSRVR,x
dex
bpl .1
>LDYA L.MSG.CFG2
>SYSCALL CPrintFYA
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>PUSHWI DHCP.REQ.LEN
>PUSHW L.DHCP.REQ
jsr CS.RUN.SKT.SEND
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bcs CS.RUN.KO
lda #S.IPCFG.STATUS.SREQ
sta IPCFG
CS.RUN.RACK >SYSCALL Sleep
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jsr CS.RUN.SKT.RCVD
bcc .1
jsr Wait.Timeout
bcc CS.RUN.RACK
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lda #2
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bra CS.RUN.KO
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.1 jsr CheckDHCPAck
bcs CS.RUN.RACK
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CS.RUN.OK lda #S.IPCFG.STATUS.OK
sta IPCFG
>PUSHW L.IPCFG
>LIBCALL hLIBTCPIP,LIBTCPIP.SET.IPCFG
ldx #3
.1 lda IPCFG+S.IPCFG.MASK,x
>PUSHA
dex
bpl .1
ldx #3
.2 lda IPCFG+S.IPCFG.IP,x
>PUSHA
dex
bpl .2
>LDYA L.MSG.CFG.OK
>SYSCALL CPrintFYA
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lda #0 Leave with NO ERROR
sec
rts
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CS.RUN.KO pha
>PUSHA
>LDYA L.MSG.CFG.KO
>SYSCALL CPrintFYA
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pla
sec
rts
*--------------------------------------
CS.RUN.SKT.SEND ldy #hSocket
>PUSHB (pData),y
>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.SEND
rts
*--------------------------------------
CS.RUN.SKT.RCVD ldy #hSocket
lda (pData),y
>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.RCVDA
bcs .9
ldy #hFrame
sta (pData),y
>SYSCALL GetMemPtrA
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>STYA ZPFrameBase
.9 rts
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*--------------------------------------
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CS.DOEVENT lda (pEvent)
bpl .1 is it a TIMER event?
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ldy #TimeOut
lda (pData),y
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beq .9
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dec
sta (pData),y
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.9 sec do not discard TIMER event
rts
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.1 bit #S.EVT.F.KEY is it a KEY event?
beq .8
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ldy #S.EVT.hDEV is Event from active IN device?
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lda (pEvent),y
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ldy #S.PS.hINDEV
cmp (pPs),y
bne .9
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ldy #S.EVT.DATAHI is it an O or SAPPLE key ?
lda (pEvent),y
bne .9
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ldy #S.EVT.DATALO
lda (pEvent),y
cmp #$03 Ctrl-C
bne .8
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lda #$FF
ldy #bCTRLC
sta (pData),y
bra .8
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.8 clc
rts
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*--------------------------------------
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CS.QUIT ldy #hSocket
lda (pData),y
beq .1
>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.CLOSEA
.1 lda hLIBTCPIP
>SYSCALL UnloadLibA
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clc
rts
*--------------------------------------
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CheckDHCPOffer jsr CheckDHCPXID
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bcs .9
>LDAXI S.DHCP.OPTIONS
jsr SetFramePtr1AX
ldy #2 DHCPOffer ?
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lda (ZPFramePtr),y
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cmp #S.DHCP.OPTIONS.DHCPOffer
bne .9
ldy #S.DHCP.YIADDR+3
ldx #3
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.1 lda (ZPFrameBase),y
sta DHCP.REQ.OPT.REQIP,x
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dey
dex
bpl .1
ldx #3
ldy #S.IPCFG.IP+3
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.2 lda DHCP.REQ.OPT.REQIP,x
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sta IPCFG,y
dey
dex
bpl .2
ldy #S.IP.SRC+3
ldx #3
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.3 lda (ZPFrameBase),y
sta DHCP.REQ.OPT.SVRIP,x
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dey
dex
bpl .3
ldx #3
ldy #S.IPCFG.DHCPSRVR+3
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.4 lda DHCP.REQ.OPT.SVRIP,x
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sta IPCFG,y
dey
dex
bpl .4
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.5 inc ZPFramePtr skip Option 53 (DHCPOffer:530102)
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bne .6
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inc ZPFramePtr+1
.6 lda (ZPFramePtr)
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sec
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adc ZPFramePtr add option len + 1
sta ZPFramePtr
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bcc .7
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inc ZPFramePtr+1
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.7 lda (ZPFramePtr)
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cmp #S.DHCP.OPTIONS.END
beq .8
jsr GetDHCPOption
bra .5
.8 clc
rts
.9 sec
rts
*--------------------------------------
GetDHCPOption cmp #S.DHCP.OPTIONS.MASK
bne .1
ldx #S.IPCFG.MASK
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bra GetDHCPOption.CopyIP
.1 cmp #S.DHCP.OPTIONS.GW
bne .2
ldx #S.IPCFG.GW
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bra GetDHCPOption.CopyIP
.2 cmp #S.DHCP.OPTIONS.DNS
bne .3
ldx #S.IPCFG.DNS1
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bra GetDHCPOption.CopyIP
.3 cmp #S.DHCP.OPTIONS.DOMAIN
bne .9
ldy #1
lda (ZPFramePtr),y Get String len
cmp #80
bcc .4
lda #79
.4 sta IPCFG+S.IPCFG.DOMAIN store len
tax
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.5 iny
lda (ZPFramePtr),y
sta IPCFG+S.IPCFG.DOMAIN-1,y
dex
bne .5
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.9 rts
*--------------------------------------
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GetDHCPOption.CopyIP
ldy #1
lda (ZPFramePtr),y Get Byte count
cmp #9
bcc .1
lda #8 max 8 bytes (2 DNS)
.1 iny
.2 pha
lda (ZPFramePtr),y
sta IPCFG,x
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iny
inx
pla
dec
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bne .2
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rts
*--------------------------------------
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CheckDHCPAck jsr CheckDHCPXID
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bcs .9
>LDAXI S.DHCP.OPTIONS
jsr SetFramePtr1AX
ldy #2 DHCPAck ?
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lda (ZPFramePtr),y
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cmp #S.DHCP.OPTIONS.DHCPAck
bne .9
clc
rts
.9 sec
rts
*--------------------------------------
CheckDHCPXID ldy #S.DHCP.XID+3
ldx #3
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.1 lda (ZPFrameBase),y
cmp DHCP.DISC.XID,x same XID ?
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bne .9
dey
dex
bpl .1
clc
rts
.9 sec
rts
*--------------------------------------
SetFramePtr1AX clc
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adc ZPFrameBase
sta ZPFramePtr
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txa
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adc ZPFrameBase+1
sta ZPFramePtr+1
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rts
*--------------------------------------
Init.Timeout ldy #TimeOut
lda #TIMEOUT.MAX
sta (pData),y
rts
*--------------------------------------
Wait.TimeOut sec
ldy #TimeOut
lda (pData),y
beq .9
ldy #bCTRLC
lda (pData),y
bmi .9
clc
.9 rts
*--------------------------------------
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CS.END
LIBTCPIP >PSTR "libtcpip.o"
MSG.CFG1 >CSTR "DHCPCLNT:Searching for DHCP servers...\n"
MSG.CFG2 >CSTR "DHCPCLNT:Reply from DHCP Server at %d.%d.%d.%d, requesting...\n"
MSG.CFG.KO >CSTR "DHCPCLNT:Time Out [%h].\n"
MSG.CFG.OK >CSTR "DHCPCLNT:Success:[IP=%d.%d.%d.%d/%d.%d.%d.%d]\n"
MSG.CFG.ND >CSTR "DHCPCLNT:No Device, exiting.\n"
MSG.CFG.NA >CSTR "DHCPCLNT:TCPIP Already configured, exiting.\n"
hLIBTCPIP .BS 1
IPCFG .BS S.IPCFG
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FrameLen .BS 2
*--------------------------------------
Socket .DA #S.SOCKET.SOCK.DGRAM
.BS 3
.HS 00.00.00.00 Socket.Src.Addr
.DA UDP.PORT.DHCPC Socket.Src.Port
.HS FF.FF.FF.FF Socket.Dst.Addr
.DA UDP.PORT.DHCPS Socket.Dst.Port
.BS 16
*--------------------------------------
DHCP.DISC .HS 01010600 OP,HTYPE,HLEN,HOPS
DHCP.DISC.XID .BS 4
.HS 0000 SECS
.HS 0000 FLAGS
.HS 00000000 CIADDR
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DHCP.DISC.YIADDR .HS 00000000
.HS 00000000 SIADDR
.HS 00000000 GIADDR
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DHCP.DISC.CHADDR .HS 00000000.00000000.00000000.00000000
.BS 64 SNAME
.BS 128 FILE
.HS 63825363 COOKIE
.HS 3501 OPT
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.DA #S.DHCP.OPTIONS.DHCPDiscover
.HS 37040103060FFF
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DHCP.DISC.LEN .EQ *-DHCP.DISC
*--------------------------------------
DHCP.REQ .HS 01010600 OP,HTYPE,HLEN,HOPS
DHCP.REQ.XID .BS 4
.HS 0000 SECS
.HS 0000 FLAGS
.HS 00000000 CIADDR
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DHCP.REQ.YIADDR .HS 00000000
.HS 00000000 SIADDR
.HS 00000000 GIADDR
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DHCP.REQ.CHADDR .HS 00000000.00000000.00000000.00000000
.BS 64 SNAME
.BS 128 FILE
.HS 63825363 COOKIE
.HS 3501 OPT
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.DA #S.DHCP.OPTIONS.DHCPRequest
.HS 3204
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DHCP.REQ.OPT.REQIP .BS 4
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.HS 3604
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DHCP.REQ.OPT.SVRIP .BS 4
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.HS FF
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DHCP.REQ.LEN .EQ *-DHCP.REQ
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*--------------------------------------
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DS.START
TimeOut .BS 1
bCTRLC .BS 1
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hSocket .BS 1
hFrame .BS 1
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DS.END
MAN
SAVE SBIN/DHCPCLNT.S
ASM