2018-01-09 16:37:08 +00:00
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NEW
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PREFIX /A2OSX.BUILD
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AUTO 4,1
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF /A2OSX.BUILD/SYS/KM.VSDRIVE
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*--------------------------------------
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.INB /A2OSX.BUILD/INC/MACROS.I
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.INB /A2OSX.BUILD/INC/IO.I
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.INB /A2OSX.BUILD/INC/MONITOR.I
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.INB /A2OSX.BUILD/INC/PRODOS.I
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.INB /A2OSX.BUILD/INC/MLI.ERR.I
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.INB /A2OSX.BUILD/INC/COM.6551.I
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*--------------------------------------
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TmpPtr1 .EQ $0
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ADT.CMD.VSD .EQ $C5 "E": Virtual Drive Command Envelope
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ADT.CMD.PING .EQ $D9 "Y": PING
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DRV.EntryPoint .EQ $BF41
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*--------------------------------------
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VSDRIVE.Init >LDAXI VSDRIVE.MSG0
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jsr PrintFAX
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jsr VSDRIVE.Check
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bcs .90
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.1 lda #$C1 Self Modified
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.2 jsr SSC.Detect
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bcs .99
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stx DRV+2 DRV.Slotn0
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sta .1+1 Slot Cn
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and #$0F
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pha slot n
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>LDAXI VSDRIVE.SSCOK
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jsr PrintFAX
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jsr VSDRIVE.Ping
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bcs .92
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>LDAXI VSDRIVE.SRVOK
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jsr PrintFAX
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jsr VSDRIVE.SetSlot
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bcs .91
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pha Push slot
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pha 2 times
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>LDAXI VSDRIVE.DEVOK
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jsr PrintFAX
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jsr VSDRIVE.Install
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>LDAXI VSDRIVE.OK
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jsr PrintFAX
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rts
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.90 >LDAXI VSDRIVE.DRVKO
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jsr PrintFAX
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rts
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.91 >LDAXI VSDRIVE.NOSLOT
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jsr PrintFAX
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rts
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.92 pha Push EC
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>LDAXI VSDRIVE.SRVKO
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jsr PrintFAX
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inc .1+1
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lda .1+1
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cmp #$C8
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bne .2 Go try next SSC....
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.99 >LDAXI VSDRIVE.SSCKO
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jsr PrintFAX
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rts
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*--------------------------------------
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VSDRIVE.Check bit RRAMWRAMBNK2
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bit RRAMWRAMBNK2
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clc
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lda $D001
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eor DRV
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bne .8
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lda $D002
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eor DRV+1
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bne .8
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sec
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.8 bit RROMBNK1
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rts
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*--------------------------------------
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SSC.Detect stz TmpPtr1
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sta TmpPtr1+1
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.1 ldx #DEVSIG.Value-DEVSIG.Offset-1
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.2 ldy DEVSIG.Offset,x
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lda (TmpPtr1),y
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cmp DEVSIG.Value,x
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bne .3
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dex
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bpl .2
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lda TmpPtr1+1 A=SlotCN
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asl
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asl
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asl
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asl
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tax X=SlotN0
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stz SSC.RESET,x
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jsr VSDRIVE.Wait
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lda #SSC.CTL.CLKINT+SSC.CTL.B115200+SSC.CTL.8D+SSC.CTL.1S+SSC.CMD.NOP
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sta SSC.CTL,x
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jsr VSDRIVE.Wait
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lda #SSC.CMD.RIRQDIS+SSC.CMD.TE+SSC.CMD.DTR
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sta SSC.CMD,x
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jsr VSDRIVE.Wait
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lda TmpPtr1+1 A=Slot Cn, X=n0
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clc
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rts X=SlotN0, A=SlotCN
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.3 inc TmpPtr1+1 no match, try next slot....
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lda TmpPtr1+1
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cmp #$C8
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bne .1
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.9 sec
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rts
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*--------------------------------------
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VSDRIVE.Ping ldx DRV+2 DRV.Slotn0
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stz VSDRIVE.Ping.TO
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stz VSDRIVE.Ping.TO+1
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.10 jsr VSDRIVE.IncTimer Wait.......
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bne .10
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ldy #10
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.1 lda SSC.STATUS,x
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and #SSC.STATUS.TDRE Ready for transmit?
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bne .20
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jsr VSDRIVE.IncTimer Wait.......
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bne .1
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dey
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bne .1
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lda #1
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sec
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rts Time Out.....
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.20 stz VSDRIVE.Ping.TO
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stz VSDRIVE.Ping.TO+1
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ldy #5 5 bytes to send
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.2 lda VSDRIVE.CMDS-1,y
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sta SSC.DATA,x
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.3 lda SSC.STATUS,x
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and #SSC.STATUS.TDRE char transmitted?
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bne .4
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jsr VSDRIVE.IncTimer
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bne .3
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lda #2
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sec
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rts
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.4 dey
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bne .2 next byte
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lda #521^$ffff 522 bytes to recieve
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sta VSDRIVE.Ping.BC
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lda /521^$ffff
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sta VSDRIVE.Ping.BC+1
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stz VSDRIVE.Ping.TO
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stz VSDRIVE.Ping.TO+1
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ldy #3 EC if no byte recieved
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.5 lda SSC.STATUS,x
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and #SSC.STATUS.RDRF incoming char?
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bne .6
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2018-01-12 16:05:04 +00:00
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* jsr VSDRIVE.Wait
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2018-01-09 16:37:08 +00:00
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jsr VSDRIVE.IncTimer
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bne .5
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tya
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sec
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rts
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.6 ldy #4 EC=4 if recieved only partial reply
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lda SSC.DATA,x
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inc VSDRIVE.Ping.BC
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bne .5
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inc VSDRIVE.Ping.BC+1
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bne .5
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clc
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rts
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*--------------------------------------
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VSDRIVE.IncTimer
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inc VSDRIVE.Ping.TO
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bne .8
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inc VSDRIVE.Ping.TO+1
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.8 rts
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*--------------------------------------
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VSDRIVE.Wait lda #0
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.1 dec
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bne .1
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rts
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*--------------------------------------
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VSDRIVE.CMDS .HS C6.00.00.03
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.DA #ADT.CMD.VSD
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* C6=C5 eor 03 eor 00 eor 00
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VSDRIVE.Ping.TO .BS 2
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VSDRIVE.Ping.BC .BS 2
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*--------------------------------------
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* Find 2 free slots in DEVPTRS (D1 & D2)
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*--------------------------------------
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VSDRIVE.SetSlot ldx #2 Starts at Slot1
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.1 lda DEVPTRS,x Drive1
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cmp DEVPTRS pointing to S0D1 NODEV ?
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bne .2
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lda DEVPTRS+1,x
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cmp DEVPTRS+1
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bne .2
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lda DEVPTRS+16,x Drive2
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cmp DEVPTRS
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bne .2
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lda DEVPTRS+17,x
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cmp DEVPTRS+1
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bne .2
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lda #DRV.EntryPoint
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sta DEVPTRS,x
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sta DEVPTRS+16,x
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lda /DRV.EntryPoint
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sta DEVPTRS+1,x
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sta DEVPTRS+17,x
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txa
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asl
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asl
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asl
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ora #$0D
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ldy DEVCNT
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iny
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sta DEVLST,y add Drv1
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ora #$80
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iny
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sta DEVLST,y add Drv2
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sty DEVCNT
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txa
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lsr exit with A=SLOT
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clc
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rts
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.2 inx
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inx
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cpx #16
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bne .1
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rts sec from CPX
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*--------------------------------------
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VSDRIVE.Install ldx #PATCH.SIZE
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.1 lda PATCH-1,x
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sta DRV.EntryPoint-1,x
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dex
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bne .1
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bit RRAMWRAMBNK2
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bit RRAMWRAMBNK2
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ldx #DRV.SIZE
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.2 lda DRV-1,x
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sta $D000,x
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dex
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bne .2
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bit RROMBNK1
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clc
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rts
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*--------------------------------------
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.INB /A2OSX.SRC/X.PRINTF.S
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*--------------------------------------
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DEVSIG.Offset .HS 05070B0C
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DEVSIG.Value .HS 38180131
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2018-04-11 15:35:51 +00:00
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VSDRIVE.MSG0 .AZ "VSDRIVE (ADTPro Vitual Serial HD) Driver For A2osX\n"
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VSDRIVE.DRVKO .AZ "VSDRIVE (Or other custom Driver) Already Installed.\n"
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VSDRIVE.SSCKO .AZ "SSC Not Detected.\n"
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VSDRIVE.SSCOK .AZ "SSC Found At Slot %d.\nContacting ADTPro Server..."
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VSDRIVE.SRVKO .AZ "No Response From ADTPro Server (EC=%d).\n"
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VSDRIVE.SRVOK .AZ "ADTPro Server Is Online.\n"
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VSDRIVE.NOSLOT .AZ "No ProDOS device slot available.\n"
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VSDRIVE.DEVOK .AZ "VSDRIVE Installed 2 devices at S%d,D1 & S%d,D2.\n"
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VSDRIVE.OK .AZ "VSDRIVE Driver Successfully Installed.\n"
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2018-01-09 16:37:08 +00:00
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*--------------------------------------
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* ProDOS $BE41->$BE4B Patch for switching to BANK2 (10 bytes)
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*--------------------------------------
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PATCH .PH DRV.EntryPoint
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bit RRAMWRAMBNK2
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jsr $D001
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bit RRAMWRAMBNK1
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rts
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.EP
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PATCH.SIZE .EQ *-PATCH
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*--------------------------------------
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* Driver
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*--------------------------------------
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* OP = 2 : Write drv1
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* OP = 3 : Read drv1
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* OP = 4 : Write drv2
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* OP = 5 : Read drv2
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* CMD = $C5+OP+BLKLO+BLKHI+CHKSUM
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* DO NOT trash DRV.COMMAND...DRV.BLKNUM as ProDOS
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* reuses them after Block operation
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* A1,A2 are used by Disk II Driver,
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* so we use it safely as Tmp Ptr
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*--------------------------------------
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DRV.A1L .EQ $3C
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DRV.A1H .EQ $3D
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DRV.A2L .EQ $3E
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DRV.A2H .EQ $3F
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DRV.COMMAND .EQ $42
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DRV.UNITNUM .EQ $43
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DRV.BUFF .EQ $44
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DRV.BLKNUM .EQ $46
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*--------------------------------------
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DRV .EQ *
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.PH $D001 Main LC Bnk 2 $D001->$DFFF
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cld
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DRV.Slotn0 ldx #$ff Self Modified
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lda DRV.COMMAND S=0,R=1,W=2,F=3
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bne .1
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ldx #$ff return Status
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ldy #$ff
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.8 lda #0
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clc
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rts
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.1 cmp #3
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beq .8 Format ....
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* bcs DRV.DO.CMD.ERR more....IO error
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ora #2 W=2,R=3
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ldy DRV.UNITNUM
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bpl .2
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adc #2 CC from bcs
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.2 sta DRV.CmdBuf.Cmd store cmd
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eor #ADT.CMD.VSD
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eor DRV.BLKNUM
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eor DRV.BLKNUM+1
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sta DRV.CmdBuf.Sum Compute & store CheckSum
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lda DRV.BLKNUM
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sta DRV.CmdBuf.BlkL
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lda DRV.BLKNUM+1
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sta DRV.CmdBuf.BlkH
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* send CMD+CS
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ldy #4 Send 5 bytes including Sum
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.3 lda DRV.CmdBuf.Sum,y
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jsr DRV.SSCSend
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dey
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bpl .3
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ldy #8
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.5 lda DRV.READWRITE,y
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sta $100,y
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dey
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bpl .5
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*--------------------------------------
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lda DRV.COMMAND
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dec 1-1=0 if read
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bne DRV.DO.CMD.W go write
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*--------------------------------------
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* Read block
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*--------------------------------------
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DRV.DO.CMD.R ldy #3 Read Back and check 4 bytes
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.1 jsr DRV.SSCGet
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eor DRV.CmdBuf.BlkH,y
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bne DRV.DO.CMD.ERR
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dey
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bpl .1
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ldy #4 Read 4 bytes DATE/TIME + 1 Byte Checksum
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.2 jsr DRV.SSCGet
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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dey
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bpl .2
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tay Last EOR was with Checksum, must be 0
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bne DRV.DO.CMD.ERR
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* Y=0 from TAY
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stz DRV.CmdBuf.Sum
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sec
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.3 jsr DRV.SSCGet
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jsr $100
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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iny
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bne .3
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bcc .4
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inc DRV.BUFF+1
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clc
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bcc .3
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.4 dec DRV.BUFF+1
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jsr DRV.SSCGet
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eor DRV.CmdBuf.Sum
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bne DRV.DO.CMD.ERR
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rts A=0,CC from bcc .4
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*--------------------------------------
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DRV.DO.CMD.ERR1 pla
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pla
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DRV.DO.CMD.ERR lda #MLI.E.IO
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sec
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rts
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*--------------------------------------
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* Write Block
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*--------------------------------------
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DRV.DO.CMD.W lda #$B1 lda (),y
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sta $103
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ldy #0
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stz DRV.CmdBuf.Sum
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sec
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.1 jsr $100
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jsr DRV.SSCSend
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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iny
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bne .1
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bcc .2
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inc DRV.BUFF+1
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clc
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bcc .1
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.2 dec DRV.BUFF+1
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* A = DRV.CmdBuf.Sum
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jsr DRV.SSCSend
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* read back CMD
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ldy #4 Read 5 bytes (echo from server)
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.3 jsr DRV.SSCGet
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eor DRV.CmdBuf.Sum,y Check 5 bytes (including block Sum)
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bne DRV.DO.CMD.ERR
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dey
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bpl .3
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rts
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*--------------------------------------
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DRV.SSCSend sta .2+1
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.1 lda SSC.STATUS,x
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* bit #SSC.STATUS.DCD+SSC.STATUS.DSR
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* beq DRV.DO.CMD.ERR1
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and #SSC.STATUS.TDRE Outgoing char?
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beq .1
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.2 lda #$ff
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sta SSC.DATA,x
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rts
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*--------------------------------------
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DRV.SSCGet lda SSC.STATUS,x
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* bit #SSC.STATUS.DCD+SSC.STATUS.DSR
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* beq DRV.DO.CMD.ERR1
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and #SSC.STATUS.RDRF incoming char?
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beq DRV.SSCGet
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lda SSC.DATA,x
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rts
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*--------------------------------------
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DRV.READWRITE bit RRAMWRAMBNK1
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sta (DRV.BUFF),y
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bit RRAMWRAMBNK2
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rts
|
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*--------------------------------------
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DRV.CmdBuf.Sum .BS 1 Reverse order for dey
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DRV.CmdBuf.BlkH .BS 1
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DRV.CmdBuf.BlkL .BS 1
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DRV.CmdBuf.Cmd .BS 1
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DRV.CmdBuf.Env .DA #ADT.CMD.VSD
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*--------------------------------------
|
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.EP
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*--------------------------------------
|
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.LIST ON
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DRV.SIZE .EQ *-DRV
|
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.LIST OFF
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*--------------------------------------
|
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* CONTROL SECTION :
|
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*--------------------------------------
|
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.DO DRV.SIZE>255
|
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* ERROR:DRV.SIZE too big
|
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.FIN
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KM.VSDRIVE.S
|
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ASM
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