Macworks 3.0 800K Patch

pRRERERE RRR RRR ER RR RRR ERSTE EEE ERASE EERE ERE EERE RE RE “y* Lisa 800 -- Q00K Drive Patch for MacWorks 3.0 # IIIA E EI ERI EERE EEA EERE EEE y* : Ye y* @uthor: C. Lukaszewsk! :* Updated: 02/02/88 - Ian H. Abel Hig Version: 1.0 a iLELiLe LL LLLLLLL LLL LL bLLLL GL LLELE Leet i Lttee. y* Copyright (C) 1988 / Ian H. Abel # J AHE EEE HEISEI GHEE EGE EEG EE INCLUDE Traps.D yInctude system & toolbox traps INCLUDE TeolEqu.t yInclude toolbox equates INCLUDE SysEqu.D jInclude system equates INCLUDE FSEqu. 0 jlnciude file system equates INCLUDE PackMacs. Txt yInclude package macros INCLUDE TSDEqu. Txt ginclude PSM file equates STRING_FORMAT 3 yLength precedes string XDEF LisaG0d, Junk yFinder entry point XDEF RefNumO ,RefNumi yPSMFile required globais REF Ini tMgrs,LineQut 3PM routines XREF Openlindw, GpenDiog REF NermText MUBASE EGU $1ES93A yBase of patch wo Lisabug y® This code makes patches to MacWorks v3.0 to allow the use of an S00K drive y* with Sun Remarketing’s HFS on ‘the Lisa-2/Mac XL. The code is set up as an g% executable program which directly modifies a 5- or Ll-megabyte widget. The 3* Machiorks operating system is really an extensively modified Apple ‘monitor’ Operating system, whose filesystem structure can be figured cut from my j*# notes or from not-too-extensive hacking. This patch makes modifications to 3* the file ‘DRIVERS.GBJ’ on the MacWorks volume, It first copies the files to y* a location farther out so that there is space to append code to it. Then y# the patch is appended and the monitor directory is updated. The patch is y*# executed at startup time only, assuming that there is a $02 value at $FCCQL5, # which indicates that there is a two-sided drive attached. bd * OK The patches are as follows: Born an nnn n nnn nnn en nn en nn nnn nn nn nn nn nnn nn nnn nn nnn enn nnn nnn nnn enn nnn enna # QOxCFFié = 4708 -> 6008 The 6504 code returns a “822° instead of a “$02 at S00FCCO1S (MN drive type fields. This removes the error branch which sets up error @FFBZ {-78) try to read second side on a 400K drive eee es wipcin pita mn eg pert acne creme ron * OOOQOCFB = xx --> FF Update drive queue te reflect two-sided disk drive Me oaK OR Ok Oe aK * . eet MUIBASE+HFSCalc Routine for calculating side/track/sector for HFS volumes: * Routine must verify that $FCCOIS = $02 and $03B0=$FFFE otherwise execute: . MOVE #20640 Di : LSR.W #$1,D1 IMP 200xCFFDE # If two-side check is successful, cale- ulate side/track/sector with AQ & AL preserved and absolute sector number in OO. Patch routine ends with: DS = Side (0 or 1) 04 = Track ‘ E D8 = Sector i and exits with a copy of the code a z ER ee ck an sek wee woe nas Snicitin, Salus Sind aie wie Saw da nlp SO nd Sa OK OR OK KOKO OK OK Hon te ¢ $00xD003E. p¥e-----4-------------- - rr -a- = ao --% :* | QOICFFDS 32300640E249 -) ;* UMP HFSCalc Intercept normal calculation routine pe--- o- oe meee enna nanan ne od 3% MWBASE+InitPtchi Patch that ignores control calls of value …