Il cassetto SOLODACLI comprende tre programmi eseguibili soltanto da CLI, che possono quindi essere lanciati clickando sul cassetto CLI e poi sull'icona sempre contrassegnata dalla scritta CLI. Una volta aperta la finestra CLI, digitate i comandi: CD AMIGABYTE_19: CD SOLO_DA_CLI seguiti poi dal nome del programma da lanciare (SYS64738, NOCLICK3.6 oppure V-HUNTER1.0). Attenzione alla sintassi ed alla punteggiatura ! NoClick e' una routine che si installa in memoria ed elimina quel caratteristico "click" prodotto dai disk drive di Amiga quando non c'e' nessun disco inserito. Sys64738 e' una routine, ispirata dall'omonimo comando del Basic del Commodore 64, che resetta completamente il computer via software quando viene lanciata, ed e' utile per effettuare il reboot di Amiga in maniera automatizzata, senza necessita' di premere i tasti Control-Amiga-Amiga. V-Hunter e' un Virus Detector che controlla il contenuto della Ram e riferisce sull'eventuale presenza di virus. Qualora un virus venga trovato, il computer verra' resettato ed il virus cancellato dalla Ram. DOCUMENTAZIONE ORIGINALE DI V-HUNTER: Hello Kids Out There, 2703 Jr. Is Striking His Keyboard... Next Here's The Sledge. Welcome To The END Of Any Virus! (Including Mine! Sigh!) I Think There's No Need To Explain How Our Virus-Hunter Works, In Any Case, If You're Really A Lamer Or A Loooooser, Here Are A Couple Of Hints: - Just Launch It As A Normal Cli Command (e.g. Avail). - If The Memory Is Clean (Very Hard If You're Really A Big Lamer), A Message Will Pop Out And Tell You That Everything's Ok. - If The Memory Has Something Strange Lurking In It, Our Proggy Will Make The Screen Yellow And Virtually Fucks Up Every Kind Of Virus!!! The Virus Hunter v1.0 Will Recognize And Kill The Following Bad Dudes: - SCA - Byte Warrior - Byte Bandit - DiskDoctors - Gadafi - BS1 - LSD - - HCS - The Entire Lamer Exterminator's Saga (Including The Revenge One) - - System Z (Yes, It's A Virus Not A Killer!) - The Ultimate Virus - And So On.... There Are Not Gonna Be Any Other Release Of V.Hunter, Version1.0 Is Quite Perfect! (Yes, I know, I'm Really Modest!) Make Your Startup-Sequence Load Virus Hunter First! So You're Gonna Be Sure That You're DangerLess Working. This Proggy Is OK To Copy But Not To Sell! See Ya...... 2703 Jr. And The Sledge '89 CODICE SORGENTE ASSEMBLY DI NOCLICK 3.6 ************************************************************************* * * * * * Program Name: NoClick3.6 * * * * Version Date: 26 August 1989 * * * * Based on the original NoClick program posted by * * Dan Babcock to PLINK in May 1989 * * * * With thanks to Werner Guenther for showing the use of * * FindName to generate the trackdisk task list, and * * pointing out the possibility of changing the code's * * jump table. Thanks also to Dwight Blubaugh for flagging * * the stack frame problem with 68010/20/30 systems. * * * * Copyright (c) 1989 - Norman Iscove iscove@utoroci (bitnet) * * * * USAGE: Place in c: directory. Type 'NoClick3.5' from CLI, * * or include in Startup-sequence, preferably after FastMemFirst. * * Safer not to invoke it when disks are concurrently active. * * * * FUNCTION: * * * * Intended to eliminate clicking of empty drives installed in * * Amiga 500, 1000 or 2x00 computers, provided the particular * * drive models respond quietly to negative stepping of the * * heads past track 0. The program checks for and sets * * additional floppy drives if also present. Aborts harmlessly * * if a second execution is attempted. Also repairs a known * * bug in the trackdisk.device code involving raw read and * * write calls. * * * * Works by copying the trackdisk.device code from rom into * * ram. A single byte is modified so that the drive heads * * will be stepped (silently) in a negative rather than * * positive direction during the regular system checks for a * * disk change. One word is also altered to repair the raw * * read/write bug. After creating the copy and fixing it, the * * program changes the system vectors in each drive's task * * structure to point to the ram copy. * * * * * * ENTRY REGISTERS: none assumed * * * * EXIT REGISTERS: d2-d7/a2-a6 preserved in entry condition * * d0 = 0 * * * * ASSUMPTIONS: * * * * Private structure of the trackdisk.device code in rom is * * not documented. The offsets of the pointers to start and * * end of the code, and the offsets of the bytes to be altered * * are all determined by inspection of the code in the 1.3 rom. * * * * CAVEAT: * * * * Has been tested and works on a B2000 running KS/WB 1.3 V34.2 * * with two internal floppy drives, 2 MB expansion memory (2058) * * and no hard drive. * * * ************************************************************************* INCLUDE 'asm:LVOs/execlib' *-----------------------------------------------------------------------* * Save the incoming registers * *-----------------------------------------------------------------------* main: movem.l d2-d7/a2-a6,-(sp) movea.l 4,a6 ;a6 = execbase *-----------------------------------------------------------------------* * Make a list of all the trackdisk tasks * *-----------------------------------------------------------------------* tasklist: moveq #1,d6 ;d6 = counter (search through two lists) lea tasks,a3 ;a3 = pointer to my list of td tasks lea tdname,a4 ;a4 = pointer to "trackdisk.device" jsr _LVODisable(a6) ;disable interrupts & task switching lea 406(a6),a0 ;a0 = start of taskready queue nexttask: move.l a4,a1 ;a1 = pointer to "trackdisk.device" jsr _LVOFindName(a6) ;find the next task with this name move.l d0,(a3)+ ;save task pointer in my list, sets cond. movea.l d0,a0 ;a0 = start for next FindName search bne.s nexttask ;check for next task if not zero waitqueue: lea -4(a3),a3 ;correct pointer lea 420(a6),a0 ;a0 = start of taskwait queue dbf d6,nexttask jsr _LVOEnable(a6) *-----------------------------------------------------------------------* * Abort if already installed * *-----------------------------------------------------------------------* check: lea tasks,a4 ;1st entry is the one that was ready bsr nextset move.l $46(a3),a0 ;a0 = finalPC, td code that task exits to cmp.l #$f80000,a0 ;exit if already pointing to ram bls exit *-----------------------------------------------------------------------* * Find trackdisk.device in rom, get start, end, size * *-----------------------------------------------------------------------* findcode: lea tdname,a0 moveq #0,d0 ;unit df0: moveq #0,d1 ;flags lea iorequest,a1 jsr _LVOOpenDevice(a6) ;open the trackdisk.device bne exit move.l iodevice,a3 ;a3 = trackdisk library base address C03AE4 lea iorequest,a1 jsr _LVOCloseDevice(a6) move.l $0A(a3),a1 ;ln_name(a3) (C03AEE) points to string ; 'trackdisk.device' at FE957E sub.w #$18,a1 ;a1 = FE9566 move.l (a1),d2 ;d2 = start of trackdisk routine in rom, ; FE9564. add.w #4,a1 ;a1 = FE956A move.l (a1),a0 ;a0 = end of trackdisk routine in rom, ; FEB05C suba d2,a0 ;a0 = signed length of trackdisk routine moveq #0,d3 move.w a0,d3 ;d3 = unsigned length (bytes) of td routine addq #3,d3 ;ensure all copied if not multiple of 4 *-----------------------------------------------------------------------* * Allocate some ram and copy to it * *-----------------------------------------------------------------------* copy: move.l d3,d0 ;d0 = number of bytes moveq #1,d1 ;d1 = MEMF_PUBLIC, fastmem if available jsr _LVOAllocMem(a6) move.l d0,a1 ;d0,a1 = location of reserved block in ram lsr.w #2,d3 ;d3 = number of longs to copy move.l d2,a0 ;a0 = start of rom routine cploop: move.l (a0)+,(a1)+ ;copy rom routine to ram dbra d3,cploop *-----------------------------------------------------------------------* * This section will fix the copy's jump table so that _all_ system * * calls to the trackdisk tasks will use only the code in the ram * * copy. If the table is not altered, most of the calls will jump * * back into the rom original. It is not necessary to change the * * jump table for the rmvclick patch to take effect. * *-----------------------------------------------------------------------* ;fixjumps: ; move.l d2,d3 ;d3 = start of rom routine ; sub.l d0,d3 ;- start of ram copy = offset ; movea.l d0,a0 ;a0 = start of ram copy ; lea $a1c(a0),a0 ;a0 = pointer to copy's jump table ; moveq #21,d4 ;d4 = 22 functions to patch ;fj1: ; sub.l d3,(a0)+ ;correct the address of each function ; dbf d4,fj1 *-----------------------------------------------------------------------* * Stop the clicks * *-----------------------------------------------------------------------* rmvclick: move.l d0,a5 ;a5 = location of copy bchg #7,$0105(a5) ;fix the critical byte *-----------------------------------------------------------------------* * Repair the trackdisk read/write bug originally at $feaf9c (1.3). * * The fix has no effect unless the fixjumps section is implemented. * *-----------------------------------------------------------------------* fixbug: move.w #$0C80,$1A38(a5) ;change to cmp.l #$8000,d0 *-----------------------------------------------------------------------* * Fix each task's exit vector to point to ram version * *-----------------------------------------------------------------------* checkcpu: moveq #0,d4 ;d4 = 0, offset for fixptrs move.w 296(a6),d5 ;AttnFlags = 0/1/$11 if cpu is 68000/10/20, btst.b #4,d5 ; 00010xxx if 68881 present beq.s fixptrs ;branch if no 68881 moveq #4,d4 ;d4 = 4 if 68881 fixptrs: lea tasks,a4 ;a4 = address of task list bsr.s nextset ;a3 = tc_SPReg for listed task move.l $46(a3,d4),a2 ;a2 = finalPC, td code that task exits to sub.l d2,a2 ;a2 = offset of code from start (d2) in rom add.l a2,a5 ;a5 = corresponding address in ram copy jsr _LVODisable(a6) move.l a5,$46(a3,d4) ;replace corrected finalPC pointer jsr _LVOEnable(a6) fixloop: bsr.s nextset beq.s exit ;exit on a1 = 0 (address next listed task) jsr _LVODisable(a6) move.l a5,$46(a3,d4) ;replace corrected finalPC pointer jsr _LVOEnable(a6) bra.s fixloop *-----------------------------------------------------------------------* * Done * *-----------------------------------------------------------------------* exit: movem.l (sp)+,d2-d7/a2-a6 ;restore the incoming registers moveq #0,d0 ;tell system no error rts ;*** subroutines *-----------------------------------------------------------------------* * Find task's exit pointer to trackdisk code * * * * Exit registers: a1 = address of task structure * * a3 = tc_SPReg * * d0 = a1 * * z flag = 0 if no more tasks * *-----------------------------------------------------------------------* nextset: move.l (a4)+,a1 ;a1 = address of this task structure move.l $36(a1),a3 ;a3 = tc_SPReg for this task move.l a1,d0 ;test for a1=0 rts ;*** data tdname: dc.b 'trackdisk.device',0 EVEN iorequest: dc.b 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 iodevice: dc.b 0,0,0,0 iounit: dc.b 0,0,0,0,0,0,0,0 EVEN tasks: ds.l 4 ;room for 4 drives dc.l 0 ;end of list marker END