prindle@NADC.ARPA (10/30/87)
From: prindle@nadc.arpa (Frank Prindle) In addition to using the 1581 drive with C-Power 128 (i.e. putting the compiler, tools, and libraries on the work disk with your own programs), I have also done the same thing with C Power 64. As mentioned by someone in a previous posting, C Power 64 differs from C Power 128 in that it is *copy protected*. Therefore, you must figure out how to move that copy protection element onto the 1581 yourself; additionally, since the implementation of that copy protection scheme uses the DOS job queue, and the prime locations for the job queue are in different places for the 1581 drive (as documented in it's manual), you also must modify the copy protection code to use the new job queue locations. All of this copy protection relates only to the "COMPILER" program. Once you have overcome these hurdles, the advantages of this scheme are similar (but not as great as) to C Power 128. Compiler passes load 10-20% faster, library searching is quite a bit faster, compilation itself is slightly faster, no disk swapping, and room for about 130 files or about 600K of user programs (whichever comes first) per disk. Sincerely, Frank Prindle Prindle@NADC.arpa
elg@killer.UUCP (Eric Green) (10/31/87)
in article <5366@rutgers.rutgers.edu>, prindle@NADC.ARPA says: > the same thing with C Power 64. As mentioned by someone in a previous posting, > C Power 64 differs from C Power 128 in that it is *copy protected*. Therefore, I don't believe that the Spinnaker version (Power C) is copy protected. Maybe it is, and I just didn't notice (I haven't loaded up the '64 version of the compiler yet, just the '128 version). But when I made my backup copies, with an ordinary whole-disk copier (not a nibbler or anything), it didn't complain. Considering that my copy costed only $34.95.... Does anybody know if C-Power/128 uses the $1300-$1400 area? I want to put my new DOS vectors there to use a relocated RAM-disk driver, and from my disassembly, it doesn't look like that area is used, but I really haven't had time to look (I've been vedy vedy busy lately). Which reminds me: George Robbins, when will we see that developer disk with that new assembler and all those RAM disk drivers! BTW, if anybody knows something about companies manufacturing/marketing C-64/C-128 hardware, I'd be interested in hearing from you, via personal mail... we have a couple of hardware gizmos under development (a prototype actually exists of one of them, although the transparent device drivers are still being written), and pretty soon it'll be time to toss'em onto the market, either through an existing firm, or a startup (no, NOT me, I'm an engineer, not a business flunky). -- Eric Green elg@usl.CSNET Snail Mail P.O. Box 92191 {cbosgd,ihnp4}!killer!elg Lafayette, LA 70509 Hello darkness my old friend, I've come to talk with you again....
mclek@dcatla.UUCP (Larry E. Kollar) (11/02/87)
In article <5366@rutgers.rutgers.edu> prindle@NADC.ARPA writes: >C Power 64 differs from C Power 128 in that it is *copy protected*. Therefore, >you must figure out how to move that copy protection element onto the 1581 >yourself; additionally, since the implementation of that copy protection >scheme uses the DOS job queue, and the prime locations for the job queue are >in different places for the 1581 drive (as documented in it's manual), you >also must modify the copy protection code to use the new job queue locations. Seems like if you know how to modify the copy protection scheme, it would be less trouble to * remove it altogether * than to transfer it to a different disk. Am I missing something obvious (or even subtle)? BTW, I finally got Small-C transferred to my 1581. It runs just fine. Not only is it not copy-protected, it's FREE. I even have the compiler source. Using the 1581 & a 1750 RAMdisk makes CP/M pretty painless. With source in hand, I hope to make a variant generate 6502 assembler under C128 native mode (or DEVPAK, if it ever comes out) or maybe even GeoProgrammer. Larry Kollar ...!gatech!dcatla!mclek Anyone can be a market analyst. The trick is getting paid up flowe