NEW AUTO 3,1 */-------------------------------------- * # AARP.Clear * Clear AARP Cache * ## ASM * ## RETURN VALUE *\-------------------------------------- AARP.Clear ldx #K.AARPCACHE.SIZE*S.AARPCACHE .1 stz AARP.CACHE-1,x dex bne .1 clc rts */-------------------------------------- * # AARP.Query * Query AARP Cache and returns HW address * ## ASM * PUSHW PTR to MAC (to fill) * PUSHW PTR to ADDR * ## RETURN VALUE * CC: hit: MAC filled * CS: missed *\-------------------------------------- AARP.Query >PULLW ZPPtrADDR ADDR >PULLW ZPPtrMAC MAC ldy #3 .1 lda (ZPPtrADDR),y sta AARP.TmpCache+S.AARPCACHE.ADDR,y dey bpl .1 jsr AARP.QUERY.I bcs .9 ldy #5 .2 lda AARP.TmpCache+S.AARPCACHE.MAC,y sta (ZPPtrMAC),y dey bpl .2 clc .9 rts */-------------------------------------- * # AARP.Add * Add a static AARP cache record * ## ASM * PUSHW PTR to MAC * PUSHW PTR to IP *\-------------------------------------- AARP.Add >PULLW ZPPtrADDR ADDR >PULLW ZPPtrMAC MAC stz AARP.TmpCache+S.AARPCACHE.TTL stz AARP.TmpCache+S.AARPCACHE.TTL+1 ldy #3 .1 lda (ZPPtrADDR),y sta AARP.TmpCache+S.AARPCACHE.ADDR,y dey bpl .1 ldy #5 .2 lda (ZPPtrMAC),y sta AARP.TmpCache+S.AARPCACHE.MAC,y dey bpl .2 lda #S.AARPCACHE.S.RESOLVED+S.AARPCACHE.S.STATIC AARP.ADD.I sta AARP.TmpCache jsr AARP.FIND.BY.ADDR bcc .1 jsr AARP.FIND.FREE .1 ldy #S.AARPCACHE-1 .2 lda AARP.TmpCache,y sta (ZPCachePtr),y dey bpl .2 clc rts */-------------------------------------- * # AARP.GetCache * Return a Ptr to AARP Cache Table * ## ASM * ## RETURN VALUE * Y,A = PTR to AARP.CACHE *\-------------------------------------- AARP.GetCache >LDYA L.AARP.CACHE clc rts *-------------------------------------- * PRIVATE *-------------------------------------- AARP.AddFromFrameInPtr ldy #S.DDP2.SRC.NET lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.ADDR+1,x iny lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.ADDR+2,x iny iny lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.ADDR+3,x ldy #S.ETH.SRCMAC+5 ldx #5 .2 lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.MAC,x dey dex bpl .2 lda #K.AARP.TTL sta AARP.TmpCache+S.AARPCACHE.TTL lda /K.AARP.TTL sta AARP.TmpCache+S.AARPCACHE.TTL+1 lda #S.AARPCACHE.S.RESOLVED jmp AARP.ADD.I *-------------------------------------- AARP.IN ldy #S.AARP.TPA+3 lda (ZPFrameInPtr),y cmp ETKCFG+S.ETKCFG.NodID bne AARP.IN.EXIT dey lda (ZPFrameInPtr),y cmp ETKCFG+S.ETKCFG.NetID bne AARP.IN.EXIT dey lda (ZPFrameInPtr),y cmp ETKCFG+S.ETKCFG.NetID+1 bne AARP.IN.EXIT ldy #S.AARP.OPERATION+1 HI byte lda (ZPFrameInPtr),y cmp #S.AARP.OPERATION.REQ beq AARP.IN.REQ cmp #S.AARP.OPERATION.REP beq AARP.IN.REP AARP.IN.EXIT lda hFrameIn beq .8 stz hFrameIn >SYSCALL2 FreeMem .8 clc rts *-------------------------------------- AARP.IN.REQ ldy #S.AARP.SPA+3 ldx #3 .1 lda (ZPFrameInPtr),y sta AARP.REP.TPA,x dey dex bpl .1 ldy #S.AARP.SHA+5 ldx #5 .2 lda (ZPFrameInPtr),y sta AARP.REP.DSTMAC,x sta AARP.REP.THA,x dey dex bpl .2 lda ETKCFG+S.ETKCFG.NetID+1 sta AARP.REP.SPA+1 lda ETKCFG+S.ETKCFG.NetID sta AARP.REP.SPA+2 lda ETKCFG+S.ETKCFG.NodID sta AARP.REP.SPA+3 >LDYA L.AARP.REP jsr AARP.Send bra AARP.IN.EXIT *-------------------------------------- AARP.IN.REP lda #K.AARP.TTL sta AARP.TmpCache+S.AARPCACHE.TTL lda /K.AARP.TTL sta AARP.TmpCache+S.AARPCACHE.TTL+1 ldy #S.AARP.SPA+3 ldx #3 .1 lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.ADDR,x dey dex bpl .1 ldy #S.AARP.SHA+5 ldx #5 .2 lda (ZPFrameInPtr),y sta AARP.TmpCache+S.AARPCACHE.MAC,x dey dex bpl .2 lda #S.AARPCACHE.S.RESOLVED jsr AARP.ADD.I jmp AARP.IN.EXIT *-------------------------------------- AARP.QUERY.I jsr AARP.FIND.BY.ADDR bcs .3 send an AARP request lda (ZPCachePtr) get status... bpl .9 Pending... ldy #S.AARPCACHE.MAC .2 lda (ZPCachePtr),y sta AARP.TmpCache,y iny cpy #S.AARPCACHE.MAC+6 bne .2 ldy #S.AARPCACHE.TTL lda #K.AARP.TTL sta (ZPCachePtr),y iny lda /K.AARP.TTL sta (ZPCachePtr),y clc rts .3 ldx #3 .4 lda AARP.TmpCache+S.AARPCACHE.ADDR,x sta AARP.REQ.TPA,x dex bpl .4 >LDYA L.AARP.REQ jsr AARP.Send bcs .99 lda #K.AARP.PENDING.TTL sta AARP.TmpCache+S.AARPCACHE.TTL stz AARP.TmpCache+S.AARPCACHE.TTL+1 lda #S.AARPCACHE.S.PENDING jsr AARP.ADD.I .9 lda #ERR.AARP.PENDING sec .99 rts *-------------------------------------- AARP.FIND.BY.ADDR >LDYA L.AARP.CACHE >STYA ZPCachePtr lda #K.AARPCACHE.SIZE sta TmpOffset .1 lda (ZPCachePtr) beq .3 ldx #3 ldy #S.AARPCACHE.ADDR+3 .2 lda AARP.TmpCache+S.AARPCACHE.ADDR,x cmp (ZPCachePtr),y bne .3 dey dex bpl .2 clc rts .3 lda ZPCachePtr clc adc #S.AARPCACHE sta ZPCachePtr bcc .8 inc ZPCachePtr+1 .8 dec TmpOffset bne .1 sec rts *-------------------------------------- AARP.FIND.FREE >LDYA L.AARP.CACHE >STYA ZPCachePtr lda #$ff sta TmpDWord sta TmpDWord+1 ldx #K.AARPCACHE.SIZE .1 lda (ZPCachePtr) beq .8 bpl .6 ldy #S.AARPCACHE.TTL lda (ZPCachePtr),y sec sbc TmpDWord iny lda (ZPCachePtr),y sbc TmpDWord+1 bcc .6 lda (ZPCachePtr),y sta TmpDWord+1 dey lda (ZPCachePtr),y sta TmpDWord >LDYA ZPCachePtr >STYA ZPTmpPtr1 save lowest TTL slot ... .6 lda ZPCachePtr clc adc #S.AARPCACHE sta ZPCachePtr bcc .7 inc ZPCachePtr+1 .7 dex bne .1 >LDYA ZPTmpPtr1 >STYA ZPCachePtr lda #0 sta (ZPCachePtr) .8 clc rts *-------------------------------------- AARP.EXPIRE rts >LDYA L.AARP.CACHE >STYA ZPCachePtr ldx #K.AARPCACHE.SIZE .1 lda (ZPCachePtr) beq .2 and #S.AARPCACHE.S.STATIC bne .2 ldy #S.AARPCACHE.TTL sec lda (ZPCachePtr),y sbc #1 sta (ZPCachePtr),y iny lda (ZPCachePtr),y sbc #0 sta (ZPCachePtr),y bcs .2 lda #0 sta (ZPCachePtr) .2 lda ZPCachePtr clc adc #S.AARPCACHE sta ZPCachePtr bcc .3 inc ZPCachePtr+1 .3 dex bne .1 rts *-------------------------------------- AARP.Send >STYA IOCTL+S.IOCTL.BUFPTR >LDYAI S.AARP >STYA IOCTL+S.IOCTL.BYTECNT jmp FRM.Send.IOCTL *-------------------------------------- MAN SAVE usr/src/lib/libetalk.s.aarp LOAD usr/src/lib/libetalk.s ASM