2015-03-14 21:48:35 +00:00
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PR#3
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2015-06-03 18:30:57 +00:00
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PREFIX /A2OSX.SRC
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2015-03-14 21:48:35 +00:00
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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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.OP 65C02
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.OR $2000
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2015-08-05 20:38:05 +00:00
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.TF /A2OSX.BOOT/DRV/SSC.DRV
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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2016-10-26 20:51:06 +00:00
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.INB /A2OSX.DEV/INC/MACROS.I
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.INB /A2OSX.DEV/INC/A2OSX.I
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2017-02-28 16:58:36 +00:00
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.INB /A2OSX.DEV/INC/MLI.ERR.I
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2017-02-04 22:07:06 +00:00
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.INB /A2OSX.DEV/INC/COM.6551.I
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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2015-12-10 18:53:30 +00:00
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ZPTmpPtr1 .EQ ZPDRV
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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2015-08-05 20:38:05 +00:00
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* File Header (16 Bytes)
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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CS.START cld
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2015-08-05 20:38:05 +00:00
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jmp Dev.Detect cld,jmp abs=DRV
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 DRV Layout Version 1
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2015-06-03 18:30:57 +00:00
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.DA 0
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2015-08-05 20:38:05 +00:00
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.DA CS.END-CS.START Code Length
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.DA DEV.HEADER-CS.START Device Header Offset
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.DA DRV.CS.START-CS.START Driver Code Offset
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.DA DRV.CS.END-DRV.CS.START Drv Code Length
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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L.MSG.DETECT .DA MSG.DETECT
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2015-12-10 18:53:30 +00:00
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L.MSG.DETECT.OK .DA MSG.DETECT.OK
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L.MSG.DETECT.KO .DA MSG.DETECT.KO
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L.DEV.HEADER.NAME .DA DEV.HEADER.NAME
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2015-08-05 20:38:05 +00:00
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.DA 0 End Of Reloc Table
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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2015-08-05 20:38:05 +00:00
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Dev.Detect sta hArgs
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>LDYA L.MSG.DETECT
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2016-11-03 16:27:43 +00:00
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>SYSCALL CPrintFYA
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2015-08-05 20:38:05 +00:00
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stz ZPTmpPtr1
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2015-03-14 21:48:35 +00:00
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lda #$C1
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sta ZPTmpPtr1+1
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2015-06-03 18:30:57 +00:00
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.1 ldx #DEVSIG.Length-1
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.2 ldy DEVSIG.Offset,x
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2015-03-14 21:48:35 +00:00
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lda (ZPTmpPtr1),y
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2015-06-03 18:30:57 +00:00
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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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bra .4
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2015-03-14 21:48:35 +00:00
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2015-06-03 18:30:57 +00:00
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.3 inc ZPTmpPtr1+1 no match, try next slot....
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2015-03-14 21:48:35 +00:00
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lda ZPTmpPtr1+1
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cmp #$C8
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bne .1
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2015-12-10 18:53:30 +00:00
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>LDYA L.MSG.DETECT.KO
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2016-11-03 16:27:43 +00:00
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>SYSCALL CPrintFYA
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2015-12-10 18:53:30 +00:00
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2017-02-02 17:30:07 +00:00
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lda #MLI.ERR.NODEV Not Found in any slot, exiting
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2015-06-03 18:30:57 +00:00
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sec
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rts
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.4 lda ZPTmpPtr1+1
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2015-03-14 21:48:35 +00:00
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and #$0F
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ora #$30
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2015-08-05 20:38:05 +00:00
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sta DEV.HEADER.NAME+4
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2015-06-03 18:30:57 +00:00
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asl
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asl
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asl
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asl
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sta DEVSLOTn0
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2015-12-10 18:53:30 +00:00
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2016-10-17 15:47:50 +00:00
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>PUSHW L.DEV.HEADER.NAME
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2015-12-10 18:53:30 +00:00
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>LDYA L.MSG.DETECT.OK
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2016-11-03 16:27:43 +00:00
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>SYSCALL CPrintFYA
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2015-08-05 20:38:05 +00:00
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clc
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rts
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*--------------------------------------
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CS.END
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DEVSIG.Offset .HS 05070B0C
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DEVSIG.Value .HS 38180131
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DEVSIG.Length .EQ DEVSIG.Value-DEVSIG.Offset
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2017-02-28 16:58:36 +00:00
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MSG.DETECT >CSTR "Apple SSC (Super Serial Card,//c Serial Port) Driver.\r\n"
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MSG.DETECT.OK >CSTR "SSC Installed As Device : %S\r\n"
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MSG.DETECT.KO >CSTR "No SSC Found.\r\n"
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2015-08-05 20:38:05 +00:00
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hArgs .BS 1
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*--------------------------------------
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* Device Header (16 Bytes)
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*--------------------------------------
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2017-02-02 17:30:07 +00:00
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DEV.HEADER .DA DRV.CS.START
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.DA #S.DEV.S.WRITE+S.DEV.S.READ
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2016-10-24 15:54:43 +00:00
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DEV.HEADER.NAME >PSTR "COM1" NAME
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2015-08-05 20:38:05 +00:00
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*--------------------------------------
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* Driver Code
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*--------------------------------------
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2017-02-02 17:30:07 +00:00
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DRV.CS.START cld
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jmp (.1,x)
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.1 .DA STATUS
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.DA BADCALL
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.DA BADCALL
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.DA BADCALL
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.DA CONTROL
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.DA BADCALL
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.DA OPEN
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2015-08-05 20:38:05 +00:00
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.DA CLOSE
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2017-02-02 17:30:07 +00:00
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.DA READ
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.DA WRITE
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L.STAT .DA STAT
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2015-08-05 20:38:05 +00:00
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.DA 0 end or relocation
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*--------------------------------------
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2017-02-02 17:30:07 +00:00
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BADCALL lda #MLI.ERR.BADCALL
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sec
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rts
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*--------------------------------------
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STATUS >LDYA L.STAT
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clc
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rts
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*--------------------------------------
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CONTROL clc
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rts
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*--------------------------------------
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2015-12-10 18:53:30 +00:00
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OPEN ldx DEVSLOTn0
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2015-06-03 18:30:57 +00:00
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2015-12-10 18:53:30 +00:00
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php
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sei
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2016-12-12 16:38:32 +00:00
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stz SSC.RESET,x
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2015-12-10 18:53:30 +00:00
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2015-06-03 18:30:57 +00:00
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lda #$1E
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2016-12-12 16:38:32 +00:00
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sta SSC.CTL,x
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2015-06-03 18:30:57 +00:00
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ldx DEVSLOTn0
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2016-12-12 16:38:32 +00:00
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lda #SSC.CMD.RIRQDIS
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sta SSC.CMD,x
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2015-06-03 18:30:57 +00:00
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2016-12-12 16:38:32 +00:00
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lda SSC.STATUS,x clear any IRQ pending
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2015-12-10 18:53:30 +00:00
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bmi *
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2015-06-03 18:30:57 +00:00
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plp
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2015-12-10 18:53:30 +00:00
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clc
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2015-03-14 21:48:35 +00:00
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rts
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*--------------------------------------
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2017-02-02 17:30:07 +00:00
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CLOSE php
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sei
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ldx DEVSLOTn0
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stz SSC.RESET,x
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plp
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clc
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rts
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*--------------------------------------
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READ ldx DEVSLOTn0
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2016-12-12 16:38:32 +00:00
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lda SSC.STATUS,x
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2015-12-10 18:53:30 +00:00
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bmi *
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2016-12-12 16:38:32 +00:00
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and #SSC.STATUS.RDRF incoming char?
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2015-12-10 18:53:30 +00:00
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beq .9
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2015-06-03 18:30:57 +00:00
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2016-12-12 16:38:32 +00:00
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lda SSC.DATA,x
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2015-06-03 18:30:57 +00:00
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clc
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rts
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2015-12-10 18:53:30 +00:00
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.9 lda #0
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2015-03-14 21:48:35 +00:00
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sec
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rts
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*--------------------------------------
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2017-02-02 17:30:07 +00:00
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WRITE pha
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2015-06-03 18:30:57 +00:00
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ldx DEVSLOTn0
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2017-02-02 17:30:07 +00:00
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2016-12-12 16:38:32 +00:00
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.1 lda SSC.STATUS,x
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2017-02-02 17:30:07 +00:00
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* and #SSC.STATUS.DCD+SSC.STATUS.DSR
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* beq .9
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2015-12-10 18:53:30 +00:00
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2016-12-12 16:38:32 +00:00
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and #SSC.STATUS.TDRE Outgoing char?
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2017-02-02 17:30:07 +00:00
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beq .1
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2015-06-03 18:30:57 +00:00
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2015-12-10 18:53:30 +00:00
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pla
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2016-12-12 16:38:32 +00:00
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sta SSC.DATA,x
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2015-06-03 18:30:57 +00:00
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clc
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rts
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2015-12-10 18:53:30 +00:00
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.9 pla
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2015-06-03 18:30:57 +00:00
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sec
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2015-03-14 21:48:35 +00:00
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rts
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*--------------------------------------
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2015-08-05 20:38:05 +00:00
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DRV.CS.END
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2015-06-03 18:30:57 +00:00
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DEVSLOTn0 .BS 1
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2017-02-02 17:30:07 +00:00
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*--------------------------------------
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STAT .DA #S.DEVSTAT.S.WRITE+S.DEVSTAT.S.READ
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.DA #0,#0,#0
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>PSTR "Serial Card/Port"
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.DA #S.DEVSTAT.TYPE.CHAR
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2015-06-03 18:30:57 +00:00
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.DA #0
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2017-02-02 17:30:07 +00:00
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.DA $0900
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2015-03-14 21:48:35 +00:00
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*--------------------------------------
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MAN
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SAVE DRV/SSC.DRV.S
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ASM
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