2020-05-09 19:08:20 +00:00
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NEW
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AUTO 3,1
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*/--------------------------------------
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*\--------------------------------------
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D2MotorControl >PULLB MotorOn
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>PULLB DrvSlt
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jsr CheckDiskII
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bcs .9
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lda MotorOn
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asl
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2020-05-28 21:13:52 +00:00
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lda #IO.D2.DrvOff
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2020-05-09 19:08:20 +00:00
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adc Slotn0
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tax
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lda $C000,x
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2020-06-27 18:30:09 +00:00
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clc
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2020-05-09 19:08:20 +00:00
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2020-05-28 21:13:52 +00:00
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.9 rts
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*/--------------------------------------
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*\--------------------------------------
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D2Recalibrate >PULLB DrvSlt
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jsr CheckDiskII
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bcs .9
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2020-11-19 15:34:02 +00:00
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ldy Slotn0
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2020-05-28 21:13:52 +00:00
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2020-11-19 15:34:02 +00:00
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lda IO.D2.DrvOn,y
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nop
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nop
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2020-06-22 05:59:53 +00:00
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2020-11-19 15:34:02 +00:00
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lda #168
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2020-07-13 19:29:31 +00:00
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2020-11-19 15:34:02 +00:00
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.1 sta IO.D2.Ph0Off,y
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2020-06-17 19:05:36 +00:00
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2020-11-19 15:34:02 +00:00
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dec
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dec
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2020-06-17 19:05:36 +00:00
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2020-11-19 15:34:02 +00:00
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pha
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2020-06-11 21:04:56 +00:00
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2020-06-13 19:27:06 +00:00
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and #6
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ora Slotn0
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2020-11-19 15:34:02 +00:00
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tay
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sta IO.D2.Ph0On,y
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2020-06-13 19:27:06 +00:00
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2020-09-11 15:01:48 +00:00
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lda #IO.D2.SeekTimeR
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2020-07-26 19:16:13 +00:00
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jsr D2.Wait100usecA
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2020-11-19 15:34:02 +00:00
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pla
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2020-06-13 19:27:06 +00:00
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bne .1
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2020-06-17 19:05:36 +00:00
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jsr D2.Wait25600usec
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2020-06-11 21:04:56 +00:00
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ldx Slotn0
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lda IO.D2.Ph0Off,x
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2020-06-22 05:59:53 +00:00
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2020-09-11 15:01:48 +00:00
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jsr D2.Wait25600usec
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2020-05-28 21:13:52 +00:00
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clc
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.9 rts
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2020-05-09 19:08:20 +00:00
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*/--------------------------------------
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*\--------------------------------------
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D2MoveHead >PULLB MoveTo
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>PULLB MoveFrom
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>PULLB DrvSlt
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jsr CheckDiskII
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2020-05-28 21:13:52 +00:00
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bcs .9
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2020-06-05 19:26:34 +00:00
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2020-11-19 15:34:02 +00:00
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php
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sei
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2020-11-24 17:49:46 +00:00
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jsr D2MoveHead.SEI
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plp
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clc
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.9 rts
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2020-07-25 07:05:25 +00:00
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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D2MoveHead.SEI ldx Slotn0
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ldy Slotn0
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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.1 lda MoveFrom
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cmp MoveTo
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beq .7
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2020-07-06 12:03:05 +00:00
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2020-11-24 17:49:46 +00:00
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jsr .8
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2020-11-23 22:05:27 +00:00
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2020-11-24 17:49:46 +00:00
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bcs .2
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2020-05-17 17:34:32 +00:00
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2020-11-24 17:49:46 +00:00
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* Current < Target, must move in
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2020-05-09 19:08:20 +00:00
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2020-11-24 17:49:46 +00:00
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inc
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2020-05-09 19:08:20 +00:00
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2020-11-24 17:49:46 +00:00
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.HS B0 BCS
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2020-05-26 14:23:09 +00:00
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2020-11-24 17:49:46 +00:00
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* Current > Target, must move out
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.2 dec
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2020-06-17 19:05:36 +00:00
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2020-11-19 15:34:02 +00:00
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sta MoveFrom
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2020-11-24 17:49:46 +00:00
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pha
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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and #6
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ora Slotn0
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tax
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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pla
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2020-09-28 15:43:38 +00:00
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2020-11-24 17:49:46 +00:00
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bcs .3
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2020-09-13 19:05:38 +00:00
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2020-11-24 17:49:46 +00:00
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* Current < Target, must move in
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inc
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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.HS B0 BCS
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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* Current > Target, must move out
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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.3 dec
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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and #6
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ora Slotn0
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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bcc .4
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* move out : invert 2 phases
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2020-09-20 18:35:54 +00:00
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2020-11-24 17:49:46 +00:00
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phx
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tax
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pla
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.4 tay
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lda IO.D2.Ph0On,x
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nop
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nop
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lda IO.D2.Ph0On,y
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2020-09-07 20:40:50 +00:00
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nop
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nop
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2020-11-23 22:05:27 +00:00
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2020-09-07 20:40:50 +00:00
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lda #IO.D2.SeekTimeF
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2020-07-25 07:05:25 +00:00
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jsr D2.Wait100usecA
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2020-09-20 18:35:54 +00:00
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2020-11-24 17:49:46 +00:00
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bra .1
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2020-06-27 18:30:09 +00:00
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2020-11-24 17:49:46 +00:00
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.7 jsr D2.Wait25600usec
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2020-11-19 15:34:02 +00:00
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2020-11-24 17:49:46 +00:00
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.8 bit IO.D2.Ph0Off,x
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2020-09-07 20:40:50 +00:00
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nop
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nop
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2020-11-23 22:05:27 +00:00
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2020-11-24 17:49:46 +00:00
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ldx IO.D2.Ph0Off,y
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2020-09-07 20:40:50 +00:00
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nop
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nop
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2020-08-07 19:49:24 +00:00
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2020-11-27 16:37:47 +00:00
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ldx Slotn0
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bit IO.D2.RData,x
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2020-11-19 15:34:02 +00:00
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rts
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2020-06-25 15:39:51 +00:00
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*--------------------------------------
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2020-06-09 13:40:21 +00:00
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D2.Wait25600usec
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lda #0
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2020-05-12 15:17:25 +00:00
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2020-11-24 17:49:46 +00:00
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D2.Wait100usecA phx
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2020-05-09 19:08:20 +00:00
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2020-11-24 17:49:46 +00:00
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.1 ldx Slotn0 (3)
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bit IO.D2.RData,x (4)
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ldx #18 (2)
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.2 dex (2)
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2020-05-30 20:38:47 +00:00
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bne .2 (3)
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2020-05-09 19:08:20 +00:00
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2020-11-19 15:34:02 +00:00
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dec (2)
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2020-06-07 08:06:51 +00:00
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bne .1 (3)
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2020-05-09 19:08:20 +00:00
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2020-11-24 17:49:46 +00:00
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plx
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2020-06-17 19:05:36 +00:00
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rts (6)
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2020-05-09 19:08:20 +00:00
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*/--------------------------------------
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2020-06-17 19:05:36 +00:00
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* # D2TrkRead16s
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* Write a track (16 sectors)
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* PUSHB = DSSS0000
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* PUSHB = TrackNum * 4 : 0->136+
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* PUSHW = Ptr to 16*256 buffer
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* ## RETURN VALUE
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* CC : success, A = VolNum
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* CS : A = Error
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2020-05-09 19:08:20 +00:00
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*\--------------------------------------
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2020-06-17 19:05:36 +00:00
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D2TrkRead16s >PULLW ZPPtr1
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>PULLB TrkNum
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>PULLB DrvSlt
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jsr CheckDiskII
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bcs .9
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lda VolNum
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clc
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.9 rts
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2020-05-09 19:08:20 +00:00
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*/--------------------------------------
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* # D2TrkWrite16s
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* Write a track (16 sectors)
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* PUSHB = DSSS0000
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* PUSHB = TrackNum * 4 : 0->136+
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* PUSHW = Ptr to 16*256 buffer
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* ## RETURN VALUE
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* CC : success
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* CS : A = Error
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*\--------------------------------------
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D2TrkWrite16s >PULLW ZPPtr1
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>PULLB TrkNum
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>PULLB VolNum
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>PULLB DrvSlt
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jsr CheckDiskII
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bcs .9
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>LDYAI TRACK16.LEN+1
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2020-08-23 19:46:37 +00:00
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>SYSCALL2 GetMem
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2020-05-09 19:08:20 +00:00
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bcs .9
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>STYA ZPPtr2
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stx hTrkBuf
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stz SectNum
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ldy #TRACK16.GAP1
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jsr PutSyncBytePtr2
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.1 jsr PutAddrHeadPtr2
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jsr HeaderCheckSum
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ldy #3
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.2 lda Checksum,y
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jsr PutByte44Ptr2
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dey
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bpl .2
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jsr PutTailPtr2
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ldy #TRACK16.GAP2
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jsr PutSyncBytePtr2
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jsr PutDataHeadPtr2
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jsr PutData
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jsr PutTailPtr2
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ldy #TRACK16.GAP3
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jsr PutSyncBytePtr2
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inc ZPPtr1+1
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inc SectNum
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lda SectNum
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cmp #16
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bne .1
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lda #0
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sta (ZPPtr2)
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jsr D2WriteTrackPtr2
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php
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pha
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lda hTrkBuf
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>SYSCALL2 FreeMem
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pla
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plp
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|
.9 rts
|
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*/--------------------------------------
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*\--------------------------------------
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D2TrkReadNIB
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*/--------------------------------------
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* # D2TrkWriteNIB
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|
* Write a track (NIBBLE)
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* **In:**
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* PUSHB = DSSS0000
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* PUSHW = Ptr to NIBBLE buffer (0 ended)
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* ## RETURN VALUE
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* CC : success
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* CS : A = Error
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* A=0, currently starting/seeking...
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*\--------------------------------------
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D2TrkWriteNIB >PULLW ZPPtr1
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>PULLB DrvSlt
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jsr CheckDiskII was it a DISK II ?
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bcs .9
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.9 rts
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*--------------------------------------
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* A=DSSS0000
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*--------------------------------------
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CheckDiskII pha
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and #$70 only 0SSS
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sta Slotn0
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lsr
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lsr
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lsr
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lsr
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ora #$C0 make Cn
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sta ZPPtr3+1
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stz ZPPtr3
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ldx #3 4 bytes to check
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.1 ldy DiskII.OFS,x
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.2 lda (ZPPtr3),y
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cmp DiskII.SIG,x
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bne .9
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dex
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bpl .1
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pla all bytes match, Disk II
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asl
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lda #0
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adc #IO.D2.DrvSel1
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adc Slotn0
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tax
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lda $C000,x
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2020-11-19 15:34:02 +00:00
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ldx Slotn0
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lda IO.D2.ReadMode,x
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lda IO.D2.RData,x
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lda IO.D2.Ph0Off,x
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lda IO.D2.Ph1Off,x
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lda IO.D2.Ph2Off,x
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lda IO.D2.Ph3Off,x
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2020-05-09 19:08:20 +00:00
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* clc
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rts
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.9 pla
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lda #MLI.E.NODEV
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sec
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rts
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*--------------------------------------
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* A=DSSS0000
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*--------------------------------------
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DrvSpinCheck ldy #0
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lda IO.D2.RData,x
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2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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.1 cmp IO.D2.RData,x
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bne .8 spinning
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2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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dey
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bne .1
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clc CC:not spinning
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rts
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.8 sec
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rts
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*--------------------------------------
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PutSyncBytePtr2 lda #$7f
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.1 jsr PutBytePtr2
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dey
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bne .1
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2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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rts
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*--------------------------------------
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PutAddrHeadPtr2 ldy #2
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.1 lda ADDR.Head,y
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jsr PutBytePtr2
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dey
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bpl .1
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2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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rts
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*--------------------------------------
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PutDataHeadPtr2 ldy #2
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.1 lda DATA.Head,y
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jsr PutBytePtr2
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dey
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bpl .1
|
2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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rts
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*--------------------------------------
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PutTailPtr2 ldy #2
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.1 lda TAIL,y
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jsr PutBytePtr2
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dey
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bpl .1
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2020-11-19 15:34:02 +00:00
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2020-05-09 19:08:20 +00:00
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rts
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*--------------------------------------
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HeaderCheckSum lda VolNum
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eor TrkNum
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eor SectNum
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sta Checksum
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rts
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*--------------------------------------
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PutData stz Checksum
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lda ZPPtr1
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ldy ZPPtr1+1
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clc
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adc #86
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bcc .1
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iny
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clc
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.1 sta ZPPtr3
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sty ZPPtr3+1
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adc #86
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bcc .2
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iny
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.2 sta ZPPtr4
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sty ZPPtr4+1
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ldy #85
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.3 lda (ZPPtr1),y
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and #3
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tax
|
2020-05-12 15:17:25 +00:00
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lda D2.XX000000,x
|
2020-05-09 19:08:20 +00:00
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pha
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lda (ZPPtr3),y
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and #3
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tax
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pla
|
2020-05-12 15:17:25 +00:00
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ora D2.00XX0000,x
|
2020-05-09 19:08:20 +00:00
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pha
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lda (ZPPtr4),y
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and #3
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tax
|
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pla
|
2020-05-12 15:17:25 +00:00
|
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ora D2.0000XX00,x
|
2020-05-09 19:08:20 +00:00
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2020-07-13 19:29:31 +00:00
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tax
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2020-05-09 19:08:20 +00:00
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eor Checksum
|
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sta Checksum
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lda FC2Nib,x
|
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jsr PutBytePtr2
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dey
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bpl .3
|
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ldy #0
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2020-05-10 16:03:51 +00:00
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.4 lda (ZPPtr1),y
|
2020-05-09 19:08:20 +00:00
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and #$FC
|
2020-07-13 19:29:31 +00:00
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tax
|
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2020-05-09 19:08:20 +00:00
|
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eor Checksum
|
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sta Checksum
|
2020-07-13 19:29:31 +00:00
|
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2020-05-09 19:08:20 +00:00
|
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lda FC2Nib,x
|
2020-07-13 19:29:31 +00:00
|
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2020-05-09 19:08:20 +00:00
|
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jsr PutBytePtr2
|
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|
iny
|
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bne .4
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ldx Checksum
|
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lda FC2Nib,x
|
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jsr PutBytePtr2
|
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rts
|
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*--------------------------------------
|
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PutByte44Ptr2 pha
|
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|
ror
|
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jsr .1
|
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pla
|
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.1 ora #$AA
|
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*--------------------------------------
|
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|
PutBytePtr2 sta (ZPPtr2)
|
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inc ZPPtr2
|
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bne .8
|
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inc ZPPtr2+1
|
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|
.8 rts
|
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|
*--------------------------------------
|
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|
D2WriteTrackPtr2
|
2020-09-22 05:56:28 +00:00
|
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|
|
lda hTrkBuf
|
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>SYSCALL2 GetMemPtr
|
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>STYA ZPPtr1
|
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php
|
2020-05-09 19:08:20 +00:00
|
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sei
|
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ldy #TrkWriter.Size
|
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.1 lda TrkWriter-1,y
|
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sta $1ff,y
|
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|
dey
|
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bne .1
|
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ldx Slotn0
|
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jsr $200
|
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|
2020-09-22 05:56:28 +00:00
|
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|
|
plp
|
2020-05-09 19:08:20 +00:00
|
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|
rts
|
|
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|
*--------------------------------------
|
|
|
|
|
|
MAN
|
2020-05-26 14:23:09 +00:00
|
|
|
|
SAVE usr/src/lib/libblkdev.s.d2
|
|
|
|
|
|
LOAD usr/src/lib/libblkdev.s
|
2020-05-09 19:08:20 +00:00
|
|
|
|
ASM
|
