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71 lines
1.3 KiB
Plaintext
71 lines
1.3 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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*--------------------------------------
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ICMP.IN ldy #S.ICMP.TYPE
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lda (ZPFrameBase1),y
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cmp #S.ICMP.TYPE.ECHOREQ
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bne .9
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ldy #S.IP.DST
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ldx #S.IPCFG.IP
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.1 lda (ZPFrameBase1),y
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cmp IPCFG,x
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bne .9
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iny
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inx
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cpx #S.IPCFG.IP+4
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bne .1
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ldy #S.ICMP.TYPE
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lda #S.ICMP.TYPE.ECHOREP
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sta (ZPFrameBase1),y
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ldy #S.IP.SRC+3
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ldx #3
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.2 lda (ZPFrameBase1),y
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sta ARP.TmpCache+S.ARPCACHE.IP,x
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dey
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dex
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bpl .2
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ldy #S.IP.DST+3
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ldx #3
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.3 lda ARP.TmpCache+S.ARPCACHE.IP,x
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sta (ZPFrameBase1),y
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dey
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dex
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bpl .3
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ldy #S.ETH.SRCMAC+5
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ldx #5
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.4 lda (ZPFrameBase1),y
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sta ARP.TmpCache+S.ARPCACHE.MAC,x
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dey
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dex
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bpl .4
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lda #K.ARP.TTL
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sta ARP.TmpCache+S.ARPCACHE.TTL
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lda /K.ARP.TTL
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sta ARP.TmpCache+S.ARPCACHE.TTL+1
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lda #S.ARPCACHE.STATUS.RESOLVED
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jsr ARP.ADD.I
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stz hFrame1 DO NOT QUEUE/DISCARD this frame,it is SOURCE frame!!!
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jmp SEND.ICMP.FRAME.I
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.9 sec
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rts
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*--------------------------------------
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MAN
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SAVE LIB/LIBTCPIP.S.ICMP
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LOAD LIB/LIBTCPIP.S
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ASM
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