This page (revision-2) was last changed on 03-Feb-2023 15:21 by Carsten Strotmann 

This page was created on 27-Dec-2010 17:30 by Carsten Strotmann

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Version Date Modified Size Author Changes ... Change note
2 03-Feb-2023 15:21 1 KB Carsten Strotmann to previous
1 27-Dec-2010 17:30 37 bytes Carsten Strotmann to last

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Read Track
Read Track

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Difference between version and

At line 2 removed 45 lines
{{{
0100 ;***********************************
0110 ;* Demonstration fuer Kommando $62 *
0120 ;* 'Read Track' - Befehl *
0130 ;***********************************
0140 ;
0150 TRKDAT = $5000 ; Adresse der kompletten Trackdaten
0160 TRKLEN = $0900 ; $900 SD, $D00 MD, $1200 DD
0170 SECTOR = 1 ; Anfangssektor eines Tracks
0180 ;
0190 .OPT NO LIST
0200 .OPT OBJ
0210 *= $4000
0220 ;
0230 LDA #$31 ; Bus ID
0240 STA $0300
0250 LDA #1 ; Laufwerks Nummer = 1
0260 STA $0301
0270 LDA #$62 ; Kommando $62
0280 STA $0302
0290 LDA #$40 ; Status fuer Daten lesen
0300 STA $0303
0310 LDA # <TRKDAT ; Trackdaten Low Byte
0320 STA $0304
0330 LDA # >TRKDAT ; Trackdaten High Byte
0340 STA $0305
0350 LDA #7 ; Wert fuer Timeout = 7 Sekunden
0360 STA $0306
0370 LDA # <TRKLEN ; Tracklaenge Low Byte
0380 STA $0308
0390 LDA # >TRKLEN ; Tracklaenge High Byte
0400 STA $0309
0410 LDA # <SECTOR
0420 STA $030A
0430 LDA # >SECTOR
0440 STA $030B
0450 JSR $E459 ; Einsprung der SIO-Routine im OS
0460 BMI ERROR
0470 CLC
0480 RTS
0490 ERROR SEC
0500 RTS
}}}
This page (revision-2) was last changed on 03-Feb-2023 15:21 by Carsten Strotmann  Top