A2osX/BIN/PING.S.txt

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
.OP 65C02
.OR $2000
.TF /A2OSX.BOOT/BIN/PING
*--------------------------------------
.INB /A2OSX.DEV/INC/MACROS.I
.INB /A2OSX.DEV/INC/A2OSX.I
.INB /A2OSX.DEV/INC/LIBTCPIP.I
*--------------------------------------
TIMEOUT.MAX .EQ 20 2 sec.
*--------------------------------------
ZPFrameBase .EQ ZPBIN
ZPFrameLen .EQ ZPBIN+2
ZPFramePtr1 .EQ ZPBIN+4
ZPIPCfgPtr .EQ ZPBIN+6
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA 0
.DA CS.END-CS.START Code Length To Relocate
.DA DS.END-DS.START Data Segment to Allocate
.DA 0
.DA 0
*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.LIBTCPIP .DA LIBTCPIP
L.Socket .DA Socket
L.MSG.IPKO .DA MSG.IPKO
L.MSG.USAGE .DA MSG.USAGE
L.MSG.UNKNOWN .DA MSG.UNKNOWN
L.MSG.HOSTOK .DA MSG.HOSTOK
L.MSG2 .DA MSG2
L.MSG3 .DA MSG3
.DA 0
*--------------------------------------
CS.INIT >LDYA L.LIBTCPIP
>SYSCALL LoadLibYA
bcs .9
sta hLIBTCPIP
lda (pPs)
ora #S.PS.F.EVENT Now accept events
sta (pPs)
clc
.9 rts
*--------------------------------------
CS.RUN >LIBCALL hLIBTCPIP,LIBTCPIP.GET.IPCFG is TCPIP loaded ?
>STYA ZPIPCfgPtr
lda (ZPIPCfgPtr) Configured ?
bmi CS.RUN.IPOK
>LDYA L.MSG.IPKO
>SYSCALL CPrintFYA
lda #SYSMGR.ERRSYN
sec
rts
*--------------------------------------
CS.RUN.IPOK >SYSCALL GetArgC
cmp #1
beq .9
jsr Init.Timeout
.2 >PUSHW pData DST.IP
lda #1
>SYSCALL GetArgA
>PUSHYA
>LIBCALL hLIBTCPIP,LIBTCPIP.HST.GETBYNAME
bcc CS.RUN.HOSTOK
>SYSCALL Sleep
jsr Wait.Timeout
bcc .2
lda #1
>SYSCALL GetArgA
>PUSHYA
>LDYA L.MSG.UNKNOWN
bra .99
.9 >LDYA L.MSG.USAGE
.99 >SYSCALL CPrintFYA
lda #SYSMGR.ERRSYN
sec
rts
*--------------------------------------
CS.RUN.HOSTOK lda #1
>SYSCALL GetArgA
>PUSHYA
ldy #DST.IP+3
>PUSHB (pData),y DST.IP+3
dey
>PUSHB (pData),y DST.IP+2
dey
>PUSHB (pData),y DST.IP+1
dey
>PUSHB (pData),y DST.IP
>LDYA L.MSG.HOSTOK
>SYSCALL CPrintFYA
CS.RUN.ECHO ldx #3
ldy #S.IPCFG.IP+3
.1 lda (ZPIPCfgPtr),y
sta Socket.Src.Addr,x
dey
dex
bpl .1
lda A2OSX.RANDOM16
sta Socket.Src.Port
lda A2OSX.RANDOM16+1
sta Socket.Src.Port+1
lda #0
ldy #Sequence
sta (pData),y
iny
sta (pData),y
ldy #S.ICMP.SEQUENCE
sta (ZPFrameBase),y
iny
txa
sta (ZPFrameBase),y
>PUSHW L.Socket
>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.NEW
bcs .99
txa
ldy #hSocket
sta (pData),y
ldy #Identifier
lda (pData),y
tax
iny
lda (pData),y
ldy #S.ICMP.IDENTIFIER+1
sta (ZPFrameBase),y
dey
txa
sta (ZPFrameBase),y
ldy #Sequence+1
lda (pData),y
tax
dey
lda (pData),y
inc
sta (pData),y
bne .2
pha
inx
txa
sta (pData),y
pla
.2 ldy #S.ICMP.SEQUENCE
sta (ZPFrameBase),y
iny
txa
sta (ZPFrameBase),y
ldx #31
ldy #S.ICMP+31
.21 txa
and #$0f
ora #$60
sta (ZPFrameBase),y
dey
dex
bpl .21
jsr Init.Timeout
.3 ldy #hFrame
lda (pData),y
>SYSCALL GetMemPtrA
>PUSHYA
>LIBCALL hLIBTCPIP,LIBTCPIP.SEND.ICMP.FRAME
bcc .4
>SYSCALL Sleep
jsr Wait.Timeout
bcc .3
.4 ldy #hFrame
lda (pData),y
>SYSCALL FreeMemA
ldy #bReply
lda #0
sta (pData),y
jsr Init.Timeout
CS.RUN.WAIT >SYSCALL Sleep
ldy #bReply
lda (pData),y
bne .1
ldy #bCTRLC
lda (pData),y
bne CS.RUN.ERROR
jsr Wait.Timeout
bcc CS.RUN.WAIT
ldy #3
>PUSHB (pData),y DST.IP+3
dey
>PUSHB (pData),y DST.IP+2
dey
>PUSHB (pData),y DST.IP+1
>PUSHB (pData) DST.IP
>LDYA L.MSG2
>SYSCALL CPrintFYA
.1 ldy #bCTRLC
lda (pData),y
bne CS.RUN.ERROR
ldy #TimeOut
lda (pData),y
beq .2
>SYSCALL Sleep
bra .1
.2 jmp CS.RUN.ECHO
CS.RUN.ERROR sec
rts
*--------------------------------------
CS.DOEVENT lda (pEvent)
bpl .1 is it a TIMER event?
ldy #TimeOut
lda (pData),y
beq .9
dec
sta (pData),y
.9 sec do not discard TIMER event
rts
*--------------------------------------
CS.Print.REPLY lda #TIMEOUT.MAX
sec
ldy #TimeOut
sbc (pData),y
stz TimeOut.ms
stz TimeOut.ms+1
tay
beq .3
.1 lda TimeOut.ms
clc
adc #100
sta TimeOut.ms
bcc .2
inc TimeOut
.2 dey
bne .1
.3 >PUSHW TimeOut.ms
ldy #S.IP.TTL
>PUSHB (ZPFrameBase),y
ldy #S.ICMP.SEQUENCE+1
>PUSHB (ZPFrameBase),y
dey
>PUSHB (ZPFrameBase),y
ldy #S.IP.SRC+3
>PUSHB (ZPFrameBase),y
dey
>PUSHB (ZPFrameBase),y
dey
>PUSHB (ZPFrameBase),y
dey
>PUSHB (ZPFrameBase),y
>LDYA L.MSG3
>SYSCALL CPrintFYA
ldy #bReply
lda (pData),y
inc
sta (pData),y
rts
*--------------------------------------
CS.QUIT lda hLIBTCPIP
>SYSCALL UnloadLibA
clc
rts
*--------------------------------------
Init.Timeout ldy #TimeOut
lda #TIMEOUT.MAX
sta (pData),y
rts
*--------------------------------------
Wait.TimeOut sec
ldy #TimeOut
lda (pData),y
beq .9
clc
.9 rts
*--------------------------------------
CS.END
LIBTCPIP >PSTR "libtcpip.o"
MSG.IPKO >CSTR "TCP/IP Not Loaded/Configured.\n"
MSG.USAGE >CSTR "Usage : PING <ip|host>\n"
MSG.UNKNOWN >CSTR "%S: Unknown host\n"
MSG.HOSTOK >CSTR "PING %d.%d.%d.%d (%S)\n"
MSG2 >CSTR "%d.%d.%d.%d: TimeOut/Host unreachable\n"
MSG3 >CSTR "32 bytes from %d.%d.%d.%d, icmp_seq=%D, ttl=%d, time=%D ms\n"
hLIBTCPIP .BS 1
TimeOut.ms .BS 2
Socket .DA #S.SOCKET.SOCK.RAW
.BS 2
.BS #S.IP.PROTOCOL.ICMP
Socket.Src.Addr .BS 4
Socket.Src.Port .BS 2 Identifier
Socket.Dst.Addr .BS 4
Socket.Dst.Port .DA 0 not used
.BS 16
*--------------------------------------
ICMP.Request .DA #S.ICMP.TYPE.ECHOREQ
.DA #0 CODE
.DA 0 CHECKSUM
ICMP.Request.ID .BS 2
ICMP.Request.SQ .BS 2
.AS "ABCDEFGHIJKLMNOP"
.AS "QRSTUVWXYZ012345"
*--------------------------------------
.DUMMY
.OR 0
DS.START
DST.IP .BS 4
Sequence .BS 2
TimeOut .BS 1
DS.END
.ED
*--------------------------------------
MAN
SAVE BIN/PING.S
ASM