Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 (Tek) 9/26/83; site tekgvs.UUCP Path: utzoo!watmath!clyde!floyd!vax135!cornell!uw-beaver!tektronix!tekchips!tekgvs!paulba From: paulba@tekgvs.UUCP (Paul Barton) Newsgroups: net.micro.6809 Subject: More than standard tracks ... Message-ID: <36@tekgvs.UUCP> Date: Mon, 12-Mar-84 13:15:10 EST Article-I.D.: tekgvs.36 Posted: Mon Mar 12 13:15:10 1984 Date-Received: Wed, 14-Mar-84 09:13:35 EST Organization: Tektronix, Beaverton OR Lines: 37 Here is a way to specify more than 36 tracks for coco drives ... FFDF allram equ $FFDF FFDE ramrom equ $FFDE D572 pat1 equ $D572 * for dskini D595 pat2 equ $D595 * for dskini D446 pat3 equ $D446 * for dski, dsko 26 traks equ 38 * two more tracks * My (Mark's) RS drive won't work if i specify 40 * maybe yours will * 0000 1A50 begin orcc #$50 * disable interrupts 0002 CE8000 ldu #$8000 0005 B7FFDE loop sta ramrom 0008 ECC4 ldd ,u 000A B7FFDF sta allram 000D EDC1 std ,u++ 000F 1183F000 cmpu #$F000 0013 23F0 bls loop * * Basic is now in ram * Now do patches * 0015 8626 lda #traks 0017 B7D572 sta pat1 001A B7D595 sta pat2 001D 4A deca 001E B7D446 sta pat3 0021 1CAF andcc #$AF 0023 39 rts 0 end begin sent for Mark Kimball by Paul T. Barton paulba@tektronix